series dhii digihelic ii differential pressure controller ...notes: 1. the instrument may be powered...

Bulletin B-31

Series DHII Digihelic® II Differential Pressure Controller

Specifications - Installation and Operating Instructions

DWYER INSTRUMENTS, INC. Phone: 219/879-8000 www.dwyer-inst.comP.O. BOX 373 • MICHIGAN CITY, IN 46360, U.S.A. Fax: 219/872-9057 e-mail: [email protected]

DO NOT REMOVETHESE SCREWS

TO GAIN ACCESS TO WIRING TERMINALS,REMOVE THESE TWO SCREWS AND “FLIP” DISPLAY

90° DO NOT REMOVE THE SCREWS WITH]POWER APPLIED TO INSTRUMENT

HINGEDSTANDOFF

WIRINGTERMINALS

1

DIMENSIONS4-23/32

[120]1-31/64[37.62]

3-7/16[87.12]

1-45/64[43.18]

1-17/32[38.61]

4-23/32[120]

45/64[17.78]

1-1/16[26.97]

1-7/8[47.5]

1-45/64[43.18]

1-1/2[38.35]

2-23/64[59.94]

4X Ø3/16 [4.76]CLEARANCEHOLES FORMOUNTING

MOUNTING HOLEPATTERN

1-5/16[33]

3-17/64[83]

4-1/8[105]

WIRING TERMINAL ACCESS

4-23/32[120]

3-7/16[87.12]

1-45/64[43.18]1-17/32

[38.61]

4-23/32[120]

45/64[17.78]

4X Ø3/16 [4.76]CLEARANCEHOLES FORMOUNTING

MOUNTING HOLEPATTERN

1-5/16[33]

1-15/16[48.97]

25/32[21.18]

2-31/32[75.39]

1-5/32[29.59]

4-9/64[105.17]

5-7/32[132.54]

BRACKETSARE OPTIONAL

4-1/8[105]

3-17/64[83]

#8 LOCKWASHER

#8-36 SLOTTEDMACHINE SCREW

OPTIONAL A-438 BRACKETMOUNTING DIAGRAM

#8 LOCKWASHER

8-36 FLAT HEADSCREWS

4-9/64[105.17]

5-7/32[132.56]

3-17/64[83]

4-1/8[105]

Bracket Assembly

2

SPECIFICATIONSService: Air and non-combustible, compatible gases.Wetted Materials: Consult factory.Housing Material: Aluminum, glass.Accuracy: ±0.5% at 77°F (25°C) including hysteresis and repeatability (after 1 hour warm-up).Stability: < ±1% per year.Pressure Limits: Ranges ≤ 2.5 in. w.c. = 2 psi 5˝: 5 psi; 10˝: 5 psi; 25˝: 5 psi; 50˝: 5 psi; 100˝: 9 psi.Temperature Limits: 32 to 140°F (0 to 60°C).Compensated Temperature Limits: 32 to 140°F (0 to 60°C).Thermal Effects: 0.020%/°F (0.036/°C) from 77°F (25°C).Power Requirements:

High Voltage Power = 100 to 240 VAC, 50 to 400 Hz or 132 to 240 VDC;Low Voltage Power = 24 VDC ±20%.

Power Consumption:Low Voltage Power = 24 VDC - 130 mA max.High Voltage Power = 100 to 240 VAC, 132 to 240 VDC - 7VA max.

Output Signal: 4-20 mA DC into 900 ohms max.Zero & Span Adjustments: Accessible via menus.Response Time: 250 ms (dampening set to 1).Display: 4 digit backlit LCD 0.6˝ height. LED indicators for set point and alarm status.Electrical Connections: Euro type removeable terminal blocks with watertight conduit fittings for1/2˝ watertight conduit.Process Connections: 1/8 female NPT.Enclosure Rating: Designed to meet NEMA 4 (IP66).Mounting Orientation: Mount unit in vertical plane.Size: 4.73˝ x 4.73˝ x 3.43˝ (120 mm x 120 mm x 87.1 mm).Weight: 2 lb 10 oz (1.19 kg).Serial Communications: Modbus® RTU, RS485, 9600 Baud.Agency Approvals: UL & CE.

SWITCH SPECIFICATIONSSwitch Type: 2 SPDT relays.Electrical Rating: 8 Amps at 240 VAC resistive.Set Point Adjustment: Adjustable via keypad on face.

Modbus® is a registered trademark of Schnieder Automation.

3

Notes:

1. The instrument may be powered from the AC line or 24 VDC. Do not wire AC line terminals 1-2 onthe lower board and 24 VDC terminals 4-5 on the upper board at the same time or damage to theunit will result.

2. For supply connections, wire in accordance with an equivalent national standard or code. Use copper conductors only rated for at least 75°C.

3. Terminals on upper board are rated CLASS 2.

4. ISOLATION:Relays - 1500 VAC to all other inputs and outputs.AC Line Power (terminals 4-5) - 1500 VAC to all other inputs and outputs.RS485 output - 500 VAC to all other CLASS 2 wiring.The 24 VDC Power, 4-20 mA transmitter, and Remote Reset Switch share a common ground.

5. The Remote Reset Switch must be a dry contact switch.

6. Shielded cable is required for RS485 wiring.

WIRING

WARNINGIf Digihelic® II Controller is powered by 24 VDC, the device receiving the 4-20 mAtransmitter output MUST NOT share a common ground with the 24 VDC supply ordamage to the Digihelic® II Controller will result.

m

11 21 2 31 2 3 41 2 3 4 51 2 3 4 5 61 2 3 4 5 6 71 2 3 4 5 6 7 81 2 3 4 5 6 7 8 11 21 2 31 2 3 41 2 3 4 51 2 3 4 5 61 2 3 4 5 6 71 2 3 4 5 6 7 81 2 3 4 5 6 7 8

CONNECTOR

1 2 3 4 5 6 7 8

C

1 2 3 4 5 6 7 8

CO

1 2 3 4 5 6 7 8

CON

1 2 3 4 5 6 7 8

CONN

1 2 3 4 5 6 7 8

CONNE

1 2 3 4 5 6 7 8

CONNEC

1 2 3 4 5 6 7 8

CONNECT

1 2 3 4 5 6 7 8

CONNECTO

1 2 3 4 5 6 7 8

CONNECTOR ON

1 2 3 4 5 6 7 8

CONNECTOR O

1 2 3 4 5 6 7 8

CONNECTOR ONLOWER

1 2 3 4 5 6 7 8

CONNECTOR ONL

1 2 3 4 5 6 7 8

CONNECTOR ONLO

1 2 3 4 5 6 7 8

CONNECTOR ONLOW

1 2 3 4 5 6 7 8

CONNECTOR ONLOWE

1 2 3 4 5 6 7 8

CONNECTOR ONLOWER BOARD

1 2 3 4 5 6 7 8

CONNECTOR ONLOWER B

1 2 3 4 5 6 7 8

CONNECTOR ONLOWER BO

1 2 3 4 5 6 7 8

CONNECTOR ONLOWER BOA

1 2 3 4 5 6 7 8

CONNECTOR ONLOWER BOAR

1 2 3 4 5 6 7 8


CONNECTOR

1 2 3 4 5 6 7 8


C

1 2 3 4 5 6 7 8


CO

1 2 3 4 5 6 7 8


CON

1 2 3 4 5 6 7 8


CONN

1 2 3 4 5 6 7 8


CONNE

1 2 3 4 5 6 7 8


CONNEC

1 2 3 4 5 6 7 8


CONNECT

1 2 3 4 5 6 7 8


CONNECTO

1 2 3 4 5 6 7 8


CONNECTOR ON

1 2 3 4 5 6 7 8


CONNECTOR O

1 2 3 4 5 6 7 8


CONNECTOR ONUPPER

1 2 3 4 5 6 7 8


CONNECTOR ONU

1 2 3 4 5 6 7 8


CONNECTOR ONUP

1 2 3 4 5 6 7 8


CONNECTOR ONUPP

1 2 3 4 5 6 7 8


CONNECTOR ONUPPE

1 2 3 4 5 6 7 8


CONNECTOR ONUPPER BOARD

1 2 3 4 5 6 7 8


CONNECTOR ONUPPER B

1 2 3 4 5 6 7 8


CONNECTOR ONUPPER BO

1 2 3 4 5 6 7 8


CONNECTOR ONUPPER BOA

1 2 3 4 5 6 7 8


CONNECTOR ONUPPER BOAR

1 2 3 4 5 6 7 8



100-240110100100-100-2100-24100-240 VAC100-240 V100-240 VA100-240 VAC or100-240 VAC o100-240 VAC or132-240100-240 VAC o r1100-240 VAC or13100-240 VAC o r132100-240 VAC o r132-100-240 VAC o r132-2100-240 VAC o r132-24100-240 VAC o r132-240 VDC100-240 VAC o r132-240 V100-240 VAC o r132-240 VD100-240 VAC o r132-240 VDC POWER100-240 VAC o r132-240 VDC P100-240 VAC o r132-240 VDC PO100-240 VAC o r132-240 VDC POW100-240 VAC o r132-240 VDC POWE100-240 VAC o r132-240 VDC POWERNOTE

100-240 VAC o r132-240 VDC POWERN

100-240 VAC o r132-240 VDC POWERNO

100-240 VAC o r132-240 VDC POWERNOT

100-240 VAC o r132-240 VDC POWERNOTE 1


3/8


3


3/


3/8 A


3/8 A 250vac


3/8 A 2


3/8 A 25


3/8 A 250


3/8 A 250v


3/8 A 250va


3/8 A 250vacMEDIUM


3/8 A 250vacM


3/8 A 250vacME


3/8 A 250vacMED


3/8 A 250vacMEDI


3/8 A 250vacMEDIU


3/8 A 250vacMEDIUM LAG


3/8 A 250vacMEDIUM L


3/8 A 250vacMEDIUM LA



N/C



N



N/



N/C N/CNN/N/CN/ONN/N/O N/ONN/N/O

CC CC

SP1SSPSP1RELAYSP1RSP1RESP1RELSP1RELASP1RELAY

SP2SP1RELAY

SSP1RELAY

SPSP1RELAY

SP2 ORSP1RELAY

SP2 OSP1RELAY

SP2 ORALARM

SP1RELAY

SP2 ORA

SP1RELAY

SP2 ORAL

SP1RELAY

SP2 ORALA

SP1RELAY

SP2 ORALAR

SP1RELAY

SP2 ORALARMRELAY

SP1RELAY

SP2 ORALARMR

SP1RELAY

SP2 ORALARMRE

SP1RELAY

SP2 ORALARMREL

SP1RELAY

SP2 ORALARMRELA

SP1RELAY

SP2 ORALARMRELAY

A-

SP1RELAY

SP2 ORALARMRELAY

A

SP1RELAY

SP2 ORALARMRELAY

A-B+

SP1RELAY

SP2 ORALARMRELAY

A-B

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485

SP1RELAY

SP2 ORALARMRELAY

A-B+

R

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS4

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS48

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 SERIAL

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 S

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 SE

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 SER

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 SERI

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 SERIA

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 SERIALCOMMUNICATION

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 SERIA LC

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 SERIA LCO

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 SERIA LCOM

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 SERIA LCOMM

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 SERIA LCOMMU

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 SERIA LCOMMUN

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 SERIA LCOMMUNI

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 SERIA LCOMMUNIC

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 SERIA LCOMMUNICA

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 SERIA LCOMMUNICAT

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 SERIA LCOMMUNICATI

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 SERIA LCOMMUNICATIO

SP1RELAY

SP2 ORALARMRELAY

A-B+

RS485 SERIA LCOMMUNICATION

++-+-24+

-2+

-24 VDC+

-24 V+

-24 VD+

-24 VDC POWER+

-24 VDC P+

-24 VDC PO+

-24 VDC POW+

-24 VDC POWE+

-24 VDC POWERNOTE

+-24 VDC POWERN

+-24 VDC POWERNO

+-24 VDC POWERNOT

+-24 VDC POWERNOTE 1

+-24 VDC POWERNOTE 1

REMOTERREREMREMOREMOTREMOTE RESETREMOTE RREMOTE REREMOTE RESREMOTE RESEREMOTE RESETSWITCHREMOTE RESETSREMOTE RESETSWREMOTE RESETSWIREMOTE RESETSWITREMOTE RESETSWITCREMOTE RESETSWITCH

Device

REMOTE RESETSWITCH

D

REMOTE RESETSWITCH

De

REMOTE RESETSWITCH

Dev

REMOTE RESETSWITCH

Devi

REMOTE RESETSWITCH

Devic

REMOTE RESETSWITCH

Device receiving

REMOTE RESETSWITCH

Device r

REMOTE RESETSWITCH

Device re

REMOTE RESETSWITCH

Device rec

REMOTE RESETSWITCH

Device rece

REMOTE RESETSWITCH

Device recei

REMOTE RESETSWITCH

Device receiv

REMOTE RESETSWITCH

Device receivi

REMOTE RESETSWITCH

Device receivin

REMOTE RESETSWITCH

Device receiving 4-20mA

REMOTE RESETSWITCH

Device receiving 4

REMOTE RESETSWITCH

Device receiving 4-

REMOTE RESETSWITCH

Device receiving 4-2

REMOTE RESETSWITCH

Device receiving 4-20

REMOTE RESETSWITCH

Device receiving 4-20m

REMOTE RESETSWITCH

Device receiving 4-20mAsignal.

REMOTE RESETSWITCH

Device receiving 4-20mAs

REMOTE RESETSWITCH

Device receiving 4-20mAsi

REMOTE RESETSWITCH

Device receiving 4-20mAsig

REMOTE RESETSWITCH

Device receiving 4-20mAsign

REMOTE RESETSWITCH

Device receiving 4-20mAsigna

REMOTE RESETSWITCH

Device receiving 4-20mAsignal

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. C

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Ch

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Che

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Chec

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcations

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check s

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check sp

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check spe

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check spec

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speci

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞ

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞc

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞca

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcat

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcati

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcatio

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcation

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationso

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof t

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof th

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof thi

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this d

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this de

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this dev

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this devi

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this devic

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device f

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device fo

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for i

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for in

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for inp

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for inpu

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input load

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input l

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input lo

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loa

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance.

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadr

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadre

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadres

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresi

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresis

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresist

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresista

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistan

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistanc

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. T

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Ty

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typ

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typi

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typic

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typica

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250

REMOTE RESETSWITCH


REMOTE RESETSWITCH


REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 t

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600

REMOTE RESETSWITCH


REMOTE RESETSWITCH


REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600 OHMS,

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600 O

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600 OH

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600 OHM

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600 OHMS

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600 OHMS, 900

REMOTE RESETSWITCH


REMOTE RESETSWITCH


REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600 OHMS, 900 OHMS

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600 OHMS, 900 O

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600 OHMS, 900 OH

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600 OHMS, 900 OHM

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600 OHMS, 900 OHMSmaximum.

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600 OHMS, 900 OHMSm

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600 OHMS, 900 OHMSma

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600 OHMS, 900 OHMSmax

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600 OHMS, 900 OHMSmaxi

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600 OHMS, 900 OHMSmaxim

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600 OHMS, 900 OHMSmaximu

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600 OHMS, 900 OHMSmaximum

REMOTE RESETSWITCH

Device receiving 4-20mAsignal. Check speciÞcationsof this device for input loadresistance. Typical 250 to600 OHMS, 900 OHMSmaximum.

++

-

+

-

4-20mA44-4-24-204-20m4-20mATRANSMITTER4-20mAT4-20mATR4-20mATRA4-20mATRAN4-20mATRANS4-20mATRANSM4-20mATRANSMI4-20mATRANSMIT4-20mATRANSMITT4-20mATRANSMITTE4-20mATRANSMITTEROUTPUT

4-20mATRANSMITTERO

4-20mATRANSMITTEROU

4-20mATRANSMITTEROUT

4-20mATRANSMITTEROUTP

4-20mATRANSMITTEROUTPU

4-20mATRANSMITTEROUTPUT

4

When wiring the instrument, you must follow industry standard practice for control andprotection against Electro-Static Discharge (ESD). Failure to exercise good ESD practicesmay cause damage to the control.

WIRING1. Remove cover.

2. To gain access to the wiring terminal blocks, remove the upper and lower screws toward the center of the display board, and then flip the display board up at a 90° angle.

3. Wire to the two terminals blocks as shown in the wiring diagram.

Note: Depending on the application, it may be only necessary to wire to the smaller terminal block onthe upper board. In that case one of the liquid tight fittings may be removed and replaced with theprovided rubber plug.

4. For liquid tight applications, use only 1/2˝ liquid tight conduit.

5. When wiring is complete, reverse steps 2 and 1. Make sure the cover is properly tightened to the housing.

INSTALLATIONMount the instrument in a location that will not be subject to excessive temperature, shock or vibration.

Pressure ConnectionsUse 1/8 male NPT fittings. When tightening fittings, grasp the brass fitting on the Digihelic® II Controllerwith a 1/2˝ wrench to prevent the fitting on the Digihelic® II Controller from turning.

T

DIGIHELIC® II CONTROLLER RS485 WIRING

SHIELDSSHSHISHIESHIELSHIELD SHIELDSHIELD SSHIELD SHSHIELD SHISHIELD SHIESHIELD SHIELSHIELD SHIELD

TIETTITIE SHIELDTIE STIE SHTIE SHITIE SHIETIE SHIELTIE SHIELD TOTIE SHIELD TTIE SHIELD TO EARTHTIE SHIELD TO ETIE SHIELD TO EATIE SHIELD TO EARTIE SHIELD TO EARTTIE SHIELD TO EARTH GROUNDTIE SHIELD TO EARTH GTIE SHIELD TO EARTH GRTIE SHIELD TO EARTH GROTIE SHIELD TO EARTH GROUTIE SHIELD TO EARTH GROUNTIE SHIELD TO EARTH GROUND

TOTTO RS232TO RTO RSTO RS2TO RS23TO RS232 TOTO RS232 TTO RS232 TORS485TO RS232 TORTO RS232 TORSTO RS232 TORS4TO RS232 TORS48TO RS232 TORS485 CONVERTERTO RS232 TORS485 CTO RS232 TORS485 COTO RS232 TORS485 CONTO RS232 TORS485 CONVTO RS232 TORS485 CONVETO RS232 TORS485 CONVERTO RS232 TORS485 CONVERTTO RS232 TORS485 CONVERTETO RS232 TORS485 CONVERTER

120112120 OHM120 O120 OH120 OHMRESISTOR120 OHMR120 OHMRE120 OHMRES120 OHMRESI120 OHMRESIS120 OHMRESIST120 OHMRESISTO120 OHMRESISTOR

LAST

120 OHMRESISTOR

L

120 OHMRESISTOR

LA

120 OHMRESISTOR

LAS

120 OHMRESISTOR

LAST UNIT

120 OHMRESISTOR

LAST U

120 OHMRESISTOR

LAST UN

120 OHMRESISTOR

LAST UNI

120 OHMRESISTOR

LAST UNIT ON

120 OHMRESISTOR

LAST UNIT O

120 OHMRESISTOR

LAST UNIT ON RS485

120 OHMRESISTOR

LAST UNIT ON R

120 OHMRESISTOR

LAST UNIT ON RS

120 OHMRESISTOR

LAST UNIT ON RS4

120 OHMRESISTOR

LAST UNIT ON RS48

120 OHMRESISTOR

LAST UNIT ON RS485 BUSS

120 OHMRESISTOR

LAST UNIT ON RS485 B

120 OHMRESISTOR

LAST UNIT ON RS485 BU

120 OHMRESISTOR

LAST UNIT ON RS485 BUS

120 OHMRESISTOR


WIRE120 OHMRESISTOR


W120 OHMRESISTOR


WI120 OHMRESISTOR


WIR120 OHMRESISTOR


WIRE NUT120 OHMRESISTOR


WIRE N120 OHMRESISTOR


WIRE NU120 OHMRESISTOR


WIRE NUT

DIGIHELICDDIDIGDIGIDIGIHDIGIHEDIGIHELDIGIHELIDIGIHELIC -DIGIHELIC - RS485DIGIHELIC - RDIGIHELIC - RSDIGIHELIC - RS4DIGIHELIC - RS48DIGIHELIC - RS485 WIRINGDIGIHELIC - RS485 WDIGIHELIC - RS485 WIDIGIHELIC - RS485 WIRDIGIHELIC - RS485 WIRIDIGIHELIC - RS485 WIRINDIGIHELIC - RS485 WIRING TODIGIHELIC - RS485 WIRING TDIGIHELIC - RS485 WIRING TO DAISYDIGIHELIC - RS485 WIRING TO DDIGIHELIC - RS485 WIRING TO DADIGIHELIC - RS485 WIRING TO DAIDIGIHELIC - RS485 WIRING TO DAISDIGIHELIC - RS485 WIRING TO DAISY CHAINDIGIHELIC - RS485 WIRING TO DAISY CDIGIHELIC - RS485 WIRING TO DAISY CHDIGIHELIC - RS485 WIRING TO DAISY CHADIGIHELIC - RS485 WIRING TO DAISY CHAIDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTSDIGIHELIC - RS485 WIRING TO DAISY CHAIN IDIGIHELIC - RS485 WIRING TO DAISY CHAIN INDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMEDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ONDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ODIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THEDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON TDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485DIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RSDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS4DIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS48DIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUPDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TODIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128DIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 1DIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 12DIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITSDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNIDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITS MAYDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITS MDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITS MADIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITS MAY BEDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITS MAY BDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITS MAY BE DAISYDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITS MAY BE DDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITS MAY BE DADIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITS MAY BE DAIDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITS MAY BE DAISDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITS MAY BE DAISY CHAINEDDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITS MAY BE DAISY CDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITS MAY BE DAISY CHDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITS MAY BE DAISY CHADIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITS MAY BE DAISY CHAIDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITS MAY BE DAISY CHAINDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITS MAY BE DAISY CHAINEDIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITS MAY BE DAISY CHAINED

THE

DIGIHELIC - RS485 WIRING TO DAISY CHAIN INSTRUMENTS ON THE RS485 BUSSUP TO 128 UNITS MAY BE DAISY CHAINED

T


TH


THE 120


THE 1


THE 12


THE 120 OHM


THE 120 O


THE 120 OH


THE 120 OHM RESISTOR


THE 120 OHM R


THE 120 OHM RE


THE 120 OHM RES


THE 120 OHM RESI


THE 120 OHM RESIS


THE 120 OHM RESIST


THE 120 OHM RESISTO


THE 120 OHM RESISTORIS


THE 120 OHM RESISTORI


THE 120 OHM RESISTORIS USUALLY


THE 120 OHM RESISTORIS U


THE 120 OHM RESISTORIS US


THE 120 OHM RESISTORIS USU


THE 120 OHM RESISTORIS USUA


THE 120 OHM RESISTORIS USUAL


THE 120 OHM RESISTORIS USUALL


THE 120 OHM RESISTORIS USUALLY ONLY


THE 120 OHM RESISTORIS USUALLY O


THE 120 OHM RESISTORIS USUALLY ON


THE 120 OHM RESISTORIS USUALLY ONL


THE 120 OHM RESISTORIS USUALLY ONLYNECESSARY


THE 120 OHM RESISTORIS USUALLY ONLYN


THE 120 OHM RESISTORIS USUALLY ONLYNE


THE 120 OHM RESISTORIS USUALLY ONLYNEC


THE 120 OHM RESISTORIS USUALLY ONLYNECE


THE 120 OHM RESISTORIS USUALLY ONLYNECES


THE 120 OHM RESISTORIS USUALLY ONLYNECESS


THE 120 OHM RESISTORIS USUALLY ONLYNECESSA


THE 120 OHM RESISTORIS USUALLY ONLYNECESSAR


THE 120 OHM RESISTORIS USUALLY ONLYNECESSARY FOR


THE 120 OHM RESISTORIS USUALLY ONLYNECESSARY F


THE 120 OHM RESISTORIS USUALLY ONLYNECESSARY FO


THE 120 OHM RESISTORIS USUALLY ONLYNECESSARY FOR LONG


THE 120 OHM RESISTORIS USUALLY ONLYNECESSARY FOR L


THE 120 OHM RESISTORIS USUALLY ONLYNECESSARY FOR LO


THE 120 OHM RESISTORIS USUALLY ONLYNECESSARY FOR LON


THE 120 OHM RESISTORIS USUALLY ONLYNECESSARY FOR LONGWIRE


THE 120 OHM RESISTORIS USUALLY ONLYNECESSARY FOR LONGW


THE 120 OHM RESISTORIS USUALLY ONLYNECESSARY FOR LONGWI


THE 120 OHM RESISTORIS USUALLY ONLYNECESSARY FOR LONGWIR


THE 120 OHM RESISTORIS USUALLY ONLYNECESSARY FOR LONGWIRE RUNS.


THE 120 OHM RESISTORIS USUALLY ONLYNECESSARY FOR LONGWIRE R


THE 120 OHM RESISTORIS USUALLY ONLYNECESSARY FOR LONGWIRE RU


THE 120 OHM RESISTORIS USUALLY ONLYNECESSARY FOR LONGWIRE RUN


THE 120 OHM RESISTORIS USUALLY ONLYNECESSARY FOR LONGWIRE RUNS


THE 120 OHM RESISTORIS USUALLY ONLYNECESSARY FOR LONGWIRE RUNS.

11 21 2 31 2 3 41 2 3 4 51 2 3 4 5 61 2 3 4 5 6 71 2 3 4 5 6 7 81 2 3 4 5 6 7 8 11 21 2 31 2 3 41 2 3 4 51 2 3 4 5 61 2 3 4 5 6 71 2 3 4 5 6 7 81 2 3 4 5 6 7 8

CONNECTOR

1 2 3 4 5 6 7 8

C

1 2 3 4 5 6 7 8

CO

1 2 3 4 5 6 7 8

CON

1 2 3 4 5 6 7 8

CONN

1 2 3 4 5 6 7 8

CONNE

1 2 3 4 5 6 7 8

CONNEC

1 2 3 4 5 6 7 8

CONNECT

1 2 3 4 5 6 7 8

CONNECTO

1 2 3 4 5 6 7 8

CONNECTOR ON

1 2 3 4 5 6 7 8

CONNECTOR O

1 2 3 4 5 6 7 8

CONNECTOR ONLOWER

1 2 3 4 5 6 7 8

CONNECTOR ONL

1 2 3 4 5 6 7 8

CONNECTOR ONLO

1 2 3 4 5 6 7 8

CONNECTOR ONLOW

1 2 3 4 5 6 7 8

CONNECTOR ONLOWE

1 2 3 4 5 6 7 8


1 2 3 4 5 6 7 8

CONNECTOR ONLOWER B

1 2 3 4 5 6 7 8


1 2 3 4 5 6 7 8


1 2 3 4 5 6 7 8


1 2 3 4 5 6 7 8


CONNECTOR

1 2 3 4 5 6 7 8


C

1 2 3 4 5 6 7 8


CO

1 2 3 4 5 6 7 8


CON

1 2 3 4 5 6 7 8


CONN

1 2 3 4 5 6 7 8


CONNE

1 2 3 4 5 6 7 8


CONNEC

1 2 3 4 5 6 7 8


CONNECT

1 2 3 4 5 6 7 8


CONNECTO

1 2 3 4 5 6 7 8


CONNECTOR ON

1 2 3 4 5 6 7 8


CONNECTOR O

1 2 3 4 5 6 7 8


CONNECTOR ONUPPER

1 2 3 4 5 6 7 8


CONNECTOR ONU

1 2 3 4 5 6 7 8


CONNECTOR ONUP

1 2 3 4 5 6 7 8


CONNECTOR ONUPP

1 2 3 4 5 6 7 8


CONNECTOR ONUPPE

1 2 3 4 5 6 7 8



1 2 3 4 5 6 7 8


CONNECTOR ONUPPER B

1 2 3 4 5 6 7 8



1 2 3 4 5 6 7 8



1 2 3 4 5 6 7 8



1 2 3 4 5 6 7 8



11 21 2 31 2 3 41 2 3 4 51 2 3 4 5 61 2 3 4 5 6 71 2 3 4 5 6 7 81 2 3 4 5 6 7 8 11 21 2 31 2 3 41 2 3 4 51 2 3 4 5 61 2 3 4 5 6 71 2 3 4 5 6 7 81 2 3 4 5 6 7 8

CONNECTOR

1 2 3 4 5 6 7 8

C

1 2 3 4 5 6 7 8

CO

1 2 3 4 5 6 7 8

CON

1 2 3 4 5 6 7 8

CONN

1 2 3 4 5 6 7 8

CONNE

1 2 3 4 5 6 7 8

CONNEC

1 2 3 4 5 6 7 8

CONNECT

1 2 3 4 5 6 7 8

CONNECTO

1 2 3 4 5 6 7 8

CONNECTOR ON

1 2 3 4 5 6 7 8

CONNECTOR O

1 2 3 4 5 6 7 8

CONNECTOR ONLOWER

1 2 3 4 5 6 7 8

CONNECTOR ONL

1 2 3 4 5 6 7 8

CONNECTOR ONLO

1 2 3 4 5 6 7 8

CONNECTOR ONLOW

1 2 3 4 5 6 7 8

CONNECTOR ONLOWE

1 2 3 4 5 6 7 8


1 2 3 4 5 6 7 8

CONNECTOR ONLOWER B

1 2 3 4 5 6 7 8


1 2 3 4 5 6 7 8


1 2 3 4 5 6 7 8


1 2 3 4 5 6 7 8


CONNECTOR

1 2 3 4 5 6 7 8


C

1 2 3 4 5 6 7 8


CO

1 2 3 4 5 6 7 8


CON

1 2 3 4 5 6 7 8


CONN

1 2 3 4 5 6 7 8


CONNE

1 2 3 4 5 6 7 8


CONNEC

1 2 3 4 5 6 7 8


CONNECT

1 2 3 4 5 6 7 8


CONNECTO

1 2 3 4 5 6 7 8


CONNECTOR ON

1 2 3 4 5 6 7 8


CONNECTOR O

1 2 3 4 5 6 7 8


CONNECTOR ONUPPER

1 2 3 4 5 6 7 8


CONNECTOR ONU

1 2 3 4 5 6 7 8


CONNECTOR ONUP

1 2 3 4 5 6 7 8


CONNECTOR ONUPP

1 2 3 4 5 6 7 8


CONNECTOR ONUPPE

1 2 3 4 5 6 7 8



1 2 3 4 5 6 7 8


CONNECTOR ONUPPER B

1 2 3 4 5 6 7 8



1 2 3 4 5 6 7 8



1 2 3 4 5 6 7 8



1 2 3 4 5 6 7 8



11 21 2 31 2 3 41 2 3 4 51 2 3 4 5 61 2 3 4 5 6 71 2 3 4 5 6 7 81 2 3 4 5 6 7 8 11 21 2 31 2 3 41 2 3 4 51 2 3 4 5 61 2 3 4 5 6 71 2 3 4 5 6 7 81 2 3 4 5 6 7 8

CONNECTOR

1 2 3 4 5 6 7 8

C

1 2 3 4 5 6 7 8

CO

1 2 3 4 5 6 7 8

CON

1 2 3 4 5 6 7 8

CONN

1 2 3 4 5 6 7 8

CONNE

1 2 3 4 5 6 7 8

CONNEC

1 2 3 4 5 6 7 8

CONNECT

1 2 3 4 5 6 7 8

CONNECTO

1 2 3 4 5 6 7 8

CONNECTOR ON

1 2 3 4 5 6 7 8

CONNECTOR O

1 2 3 4 5 6 7 8

CONNECTOR ONLOWER

1 2 3 4 5 6 7 8

CONNECTOR ONL

1 2 3 4 5 6 7 8

CONNECTOR ONLO

1 2 3 4 5 6 7 8

CONNECTOR ONLOW

1 2 3 4 5 6 7 8

CONNECTOR ONLOWE

1 2 3 4 5 6 7 8


1 2 3 4 5 6 7 8

CONNECTOR ONLOWER B

1 2 3 4 5 6 7 8


1 2 3 4 5 6 7 8


1 2 3 4 5 6 7 8


1 2 3 4 5 6 7 8


CONNECTOR

1 2 3 4 5 6 7 8


C

1 2 3 4 5 6 7 8


CO

1 2 3 4 5 6 7 8


CON

1 2 3 4 5 6 7 8


CONN

1 2 3 4 5 6 7 8


CONNE

1 2 3 4 5 6 7 8


CONNEC

1 2 3 4 5 6 7 8


CONNECT

1 2 3 4 5 6 7 8


CONNECTO

1 2 3 4 5 6 7 8


CONNECTOR ON

1 2 3 4 5 6 7 8


CONNECTOR O

1 2 3 4 5 6 7 8


CONNECTOR ONUPPER

1 2 3 4 5 6 7 8


CONNECTOR ONU

1 2 3 4 5 6 7 8


CONNECTOR ONUP

1 2 3 4 5 6 7 8


CONNECTOR ONUPP

1 2 3 4 5 6 7 8


CONNECTOR ONUPPE

1 2 3 4 5 6 7 8



1 2 3 4 5 6 7 8


CONNECTOR ONUPPER B

1 2 3 4 5 6 7 8



1 2 3 4 5 6 7 8



1 2 3 4 5 6 7 8



1 2 3 4 5 6 7 8



5

SP/ALSSPSP/SP/ASP/AL

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MENUMMEMENMENU

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RSTRRSRST

RST

P

RST

PA

RST

PAG

RST

PAGE

RST

PAGE

RST

PAGE 1

RST

PAGE 1

RST

PAGE 1 O

RST

PAGE 1 OF

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HOME POSITION FUNCTIONSequences the display through SET POINT andALARM settingsAllows access to the menus

Displays full scale range ofunit

Clears or resets an Alarm(alarm set for manual reset)

MAIN MENU FUNCTIONReturn to home position

Return to home position

Sequences throughmenus

Sequences throughmenus

Enter into SUB MENU

SUB MENU FUNCTIONReturn to home position

Return to previousmenu

Increments a value

Decrements a value

Changes a value or setting. Press ENTERand display will blink.Adjust with UP orDOWN arrows. PressENTER to store. Displaywill stop blinking.Peak/Valley SUB MENU resets displayto present value.

SP/AL

MENU

UP ARROW

ENTER

RESET

KEY FUNCTIONS

SP1SSPSP1 SP2SP1 SSP1 SPSP1 SP2 ALHISP1 SP2 ASP1 SP2 ALSP1 SP2 ALHSP1 SP2 ALHIALLOSP1 SP2 ALHIASP1 SP2 ALHIALSP1 SP2 ALHIALLSP1 SP2 ALHIALLO

SCFMSSCSCFSCFM

99.99SCFM

9SCFM

99SCFM

99.SCFM

99.9SCFM

99.99

X1K

SP/ALSSPSP/SP/ASP/AL RSTSP/AL RSP/AL RSSP/AL RSTMENUSP/AL RSTMSP/AL RSTMESP/AL RSTMENSP/AL RSTMENU ESP/AL RSTMENU E

MULTIPLIERMMUMULMULTMULTIMULTIPMULTIPLMULTIPLIMULTIPLIEMULTIPLIER DESCRIPTORMULTIPLIER DMULTIPLIER DEMULTIPLIER DESMULTIPLIER DESCMULTIPLIER DESCRMULTIPLIER DESCRIMULTIPLIER DESCRIPMULTIPLIER DESCRIPTMULTIPLIER DESCRIPTOMULTIPLIER DESCRIPTORVISIBLEMULTIPLIER DESCRIPTORVMULTIPLIER DESCRIPTORVIMULTIPLIER DESCRIPTORVISMULTIPLIER DESCRIPTORVISIMULTIPLIER DESCRIPTORVISIBMULTIPLIER DESCRIPTORVISIBLMULTIPLIER DESCRIPTORVISIBLE WITHMULTIPLIER DESCRIPTORVISIBLE WMULTIPLIER DESCRIPTORVISIBLE WIMULTIPLIER DESCRIPTORVISIBLE WITMULTIPLIER DESCRIPTORVISIBLE WITH SOMEMULTIPLIER DESCRIPTORVISIBLE WITH SMULTIPLIER DESCRIPTORVISIBLE WITH SOMULTIPLIER DESCRIPTORVISIBLE WITH SOMMULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYMULTIPLIER DESCRIPTORVISIBLE WITH SOME VMULTIPLIER DESCRIPTORVISIBLE WITH SOME VEMULTIPLIER DESCRIPTORVISIBLE WITH SOME VELMULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOMULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCMULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCIMULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITMULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYA

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAN

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FLOW

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND F

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FL

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FLO

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FLOW RANGES

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FLOW R

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FLOW RA

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FLOW RAN

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FLOW RANG

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FLOW RANGE

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FLOW RANGES FRONT

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FLOW RANGES F

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FLOW RANGES FR

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FLOW RANGES FRO

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FLOW RANGES FRON

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FLOW RANGES FRONT PANEL

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FLOW RANGES FRONT P

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FLOW RANGES FRONT PA

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FLOW RANGES FRONT PAN

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FLOW RANGES FRONT PANE

MULTIPLIER DESCRIPTORVISIBLE WITH SOME VELOCITYAND FLOW RANGES FRONT PANEL

UNITSUUNUNIUNITUNITS

PROCESSPPRPROPROCPROCEPROCESPROCESSVALUEPROCESSVPROCESSVAPROCESSVALPROCESSVALUPROCESSVALUE

HIGHHHIHIGHIGH ALARMHIGH AHIGH ALHIGH ALAHIGH ALARHIGH ALARMDESCRIPTORHIGH ALARMDHIGH ALARMDEHIGH ALARMDESHIGH ALARMDESCHIGH ALARMDESCRHIGH ALARMDESCRIHIGH ALARMDESCRIPHIGH ALARMDESCRIPTHIGH ALARMDESCRIPTOHIGH ALARMDESCRIPTOR

LOW

HIGH ALARMDESCRIPTOR

L


LO


LOW ALARM


LOW A


LOW AL


LOW ALA


LOW ALAR


LOW ALARMDESCRIPTOR


LOW ALARMD


LOW ALARMDE


LOW ALARMDES


LOW ALARMDESC


LOW ALARMDESCR


LOW ALARMDESCRI


LOW ALARMDESCRIP


LOW ALARMDESCRIPT


LOW ALARMDESCRIPTO


LOW ALARMDESCRIPTOR

SP1SSPSP1DESCRIPTORSP1DSP1DESP1DESSP1DESCSP1DESCRSP1DESCRISP1DESCRIPSP1DESCRIPTSP1DESCRIPTOSP1DESCRIPTOR

SP2

SP1DESCRIPTOR

S

SP1DESCRIPTOR

SP

SP1DESCRIPTOR

SP2DESCRIPTOR

SP1DESCRIPTOR

SP2D

SP1DESCRIPTOR

SP2DE

SP1DESCRIPTOR

SP2DES

SP1DESCRIPTOR

SP2DESC

SP1DESCRIPTOR

SP2DESCR

SP1DESCRIPTOR

SP2DESCRI

SP1DESCRIPTOR

SP2DESCRIP

SP1DESCRIPTOR

SP2DESCRIPT

SP1DESCRIPTOR

SP2DESCRIPTO

SP1DESCRIPTOR

SP2DESCRIPTOR

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DOWNARROW

6

SETTING SET POINTS AND ALARMS

The hot key provides direct access to the Set Point and Alarm MENU. The Set Point and AlarmMENUS that are displayed are based upon the Control (CtrL) SUB MENU.

SP/ALSSPSP/SP/ASP/AL SP/ALSSPSP/SP/ASP/AL SP/ALSSPSP/SP/ASP/AL


SP/ALSSPSP/SP/ASP/AL SP/ALSSPSP/SP/ASP/AL


SP/ALSSPSP/SP/ASP/AL SP/ALSSPSP/SP/ASP/AL

Visible whenVViVisVisiVisibVisiblVisibleVisible Visible wVisible whVisible wheVisible when

Visible when

Visible when

V

Visible when

Vi

Visible when

Vis

Visible when

Visi

Visible when

Visib

Visible when

Visibl

Visible when

Visible

Visible when

Visible

Visible when

Visible w

Visible when

Visible wh

Visible when

Visible whe

Visible when

Visible when

Visible when

Visible when

Visible when

V

Visible when

Visible when

Vi

Visible when

Visible when

Vis

Visible when

Visible when

Visi

Visible when

Visible when

Visib

Visible when

Visible when

Visibl

Visible when

Visible when

Visible

Visible when

Visible when

Visible

Visible when

Visible when

Visible w

Visible when

Visible when

Visible wh

Visible when

Visible when

Visible whe

Visible when

Visible when

Visible when

mode =Visible when

Visible when

Visible when

mVisible when

Visible when

Visible when

moVisible when

Visible when

Visible when

modVisible when

Visible when

Visible when

modeVisible when

Visible when

Visible when

mode Visible when

Visible when

Visible when

mode =

mode =

Visible when

Visible when

Visible when

mode =

m

Visible when

Visible when

Visible when

mode =

mo

Visible when

Visible when

Visible when

mode =

mod

Visible when

Visible when

Visible when

mode =

mode

Visible when

Visible when

Visible when

mode =

mode

Visible when

Visible when

Visible when

mode =

mode =

mode =

Visible when

Visible when

Visible when

mode =

mode =

m

Visible when

Visible when

Visible when

mode =

mode =

mo

Visible when

Visible when

Visible when

mode =

mode =

mod

Visible when

Visible when

Visible when

mode =

mode =

mode

Visible when

Visible when

Visible when

mode =

mode =

mode

Visible when

Visible when

Visible when

mode =

mode =

mode =

CONTROL MODECCOCONCONTCONTRCONTROCONTROLCONTROL CONTROL MCONTROL MOCONTROL MODCONTROL MODE CONTROL MODECONTROL MODE CCONTROL MODE COCONTROL MODE CONCONTROL MODE CONTCONTROL MODE CONTRCONTROL MODE CONTROCONTROL MODE CONTROLCONTROL MODE CONTROL CONTROL MODE CONTROL MCONTROL MODE CONTROL MOCONTROL MODE CONTROL MODCONTROL MODE CONTROL MODECONTROL MODE CONTROL MODE CONTROL MODEC CONTROL MODE CONTROL MODECO CONTROL MODE CONTROL MODECON CONTROL MODE CONTROL MODECONT CONTROL MODE CONTROL MODECONTR CONTROL MODE CONTROL MODECONTRO CONTROL MODE CONTROL MODECONTROL CONTROL MODE CONTROL MODECONTROL CONTROL MODE CONTROL MODECONTROL M CONTROL MODE CONTROL MODECONTROL MO CONTROL MODE CONTROL MODECONTROL MOD CONTROL MODE CONTROL MODECONTROL MODE

SET POINT ADJUSTMENT

Adjusting the Digihelic® II Controller Set Points is quick and simple. Instead of setting a set point anddeadband, simply adjust SP 1H or SP2H for the desired relay turn on point, and then adjust SP 1L or SP2Lfor the desired relay turn off point.

PRESSUREPPRPREPRESPRESSPRESSUPRESSURPRESSURE

0

PRESSURE

0

0

PRESSURE

0

0 TIME

PRESSURE

0

0 T

PRESSURE

0

0 TI

PRESSURE

0

0 TIM

PRESSURE

0

0 TIME

0.2

PRESSURE

0

0 TIME

0

PRESSURE

0

0 TIME

0.

PRESSURE

0

0 TIME

0.2

0.4PRESSURE

0

0 TIME

0.2

0PRESSURE

0

0 TIME

0.2

0.PRESSURE

0

0 TIME

0.2

0.4

0.6PRESSURE

0

0 TIME

0.2

0.4

0PRESSURE

0

0 TIME

0.2

0.4

0.PRESSURE

0

0 TIME

0.2

0.4

0.6

0.8

PRESSURE

0

0 TIME

0.2

0.4

0.6

0

PRESSURE

0

0 TIME

0.2

0.4

0.6

0.

PRESSURE

0

0 TIME

0.2

0.4

0.6

0.8

1.0

(in. w.c.)

In the above graph, an instrument with a 1.0˝ range would have the SP1 relay turn on at 0.8˝ and offat 0.4˝. SP 1H sets the relay turn on point, and SP 1L sets the relay turn off point. The relays outputsnormally function in the direct acting mode, which means the relays turn on with an increase inpressure. SP1 may be configured to act as a reverse acting relay (refer to the 1SP SUB MENU setting,page 15). When set for reverse acting, SP 1H sets the relay turn OFF point, and SP 1Lsets the relay turnON point. SP2 is always direct acting.


7

MENU MAPMMEMENMENUMENU MENU MMENU MAMENU MAP

CONTINUEDCCOCONCONTCONTICONTINCONTINUCONTINUECONTINUED

SETTINGSSSESETSETTSETTISETTINSETTINGSETTINGSMAIN MENUS SUB MENUS

MENUSUNAVAILABLE

FOR BI-DIRECTIONAL

RANGES ANDRANGES ABOVE

25 IN. W.C.

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CONTINUEDCCOCONCONTCONTICONTINCONTINUCONTINUECONTINUED

SETTINGSSSESETSETTSETTISETTINSETTINGSETTINGSMAIN MENUS SUB MENUS

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MAIN MENUS SUB MENUS SETTINGS

Menus present onlyin pressure operation

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10

Main Menu Selections (Upper Right Display Reads MENU )

SECr Security - Lock out access to Set Point and Alarm settings, or lock out access to all settings.

OPEr Operation - Selection of Pressure, Velocity or Flow and corresponding engineering units.

OUt Output - Select a Single Set Point, 2 Set Points, or a Set Point and an Alarm mode of operation.

d . S Display - Monitor and adjust display related settings: Peak, Valley, display resolution, % output and dampening.

AdU Advanced functions - Modify advanced function parameters, transmitter output scaling, Modbus® communication settings, Maintenance Set Point settings and calibration.

11

MAIN MENUS and SUB MENUS

SECr (Security) MAIN MENU

SECr is the only SUB MENU in the security MENU. When the security SUB MENU is selected, the present security level is displayed in the upper right hand display. To change the security level, adjust the number displayed to the number shown in the following table for the desired security level.

The password values shown in the table cannot be altered, so retain a copy of these pages for future reference.

OPEr (Operation) MAIN MENU

The OPEr MENU selects the measurement type of the instrument. The SUB MENUS are:

PrES - Pressure KFAC - K Factor XD I M - X DimensionUEL - Velocity ArEA - Area YD I M - Y DimensionFLO - Flow D I A - Diameter

If the instrument is set for Velocity, the OPEr MENU will have an additional KFAC SUB MENU. If theinstrument is set for Flow, the OPEr MENU will have additional KFAC and ArEA SUB MENUS. Thesewill be discussed under Velocity and Flow. When scrolling through the OPEr SUB MENUS, themeasurement type the unit is currently set for will show the units in the upper right display. The othermeasurement types will have a blank upper right display.

Security Level Displayed12

3

4

AccessAll menus accessMenu AccessSP/AL LockedSP/AL AccessMenus LockedAll settings locked

Password Value to Enter1070

90

111

Units visible, so unitis presently set tomeasure pressureiisis is pis pris preis presis preseis presenis presentis presentlis presentlyis presently is presently sis presently seis presently setis presently set is presently set tis presently set tois presently set tomis presently set tomeis presently set tomeais presently set tomeasis presently set tomeasuis presently set tomeasuris presently set tomeasureis presently set tomeasure is presently set tomeasure pis presently set tomeasure pris presently set tomeasure preis presently set tomeasure presis presently set tomeasure pressis presently set tomeasure pressuis presently set tomeasure pressuris presently set tomeasure pressure

Units not visible

is presently set tomeasure pressure

U


Un


Uni


Unit


Units


Units


Units n


Units no


Units not


Units not


Units not v


Units not vi


Units not vis


Units not visi


Units not visib


Units not visibl


Units not visible Units not visible


Units not visible U


Units not visible Un


Units not visible Uni


Units not visible Unit


Units not visible Units


Units not visible Units


Units not visible Units n


Units not visible Units no


Units not visible Units not


Units not visible Units not


Units not visible Units not v


Units not visible Units not vi


Units not visible Units not vis


Units not visible Units not visi


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12

PrES (Pressure) SUB MENU

For pressure measurement, the following units are available:

Table 1 Pressure Range vs. Available UnitsINWC.1000.2500.50001.0002.5005.00010.0025.0050.00100.0

FTWC

.2083

.4167

.83332.0834.1678.333

MMWC2.5406.35012.7025.4063.50127.0254.0635.012702540

CMWC.2540.63501.2702.5406.35012.7025.4063.50127.0254.0

PSI

.1806

.3613

.90321.8063.613

INHG

.1839

.3678

.73561.8393.6787.356

MMHG.1868.4671.93421.8684.6719.34218.6846.7193.42186.8

MBAR.2491.62271.2452.4916.22712.4524.9162.27124.5249.1

PA24.9162.27124.5249.1622.7124524916227

KPA

.1245

.2491

.62271.2452.4916.22712.4524.91

HPA.2491.62271.2452.4916.22712.4524.9162.27124.5249.1

OZIN

.1445

.2890

.57801.4452.8905.78014.4528.9057.80

UEL (Velocity) SUB MENU

For velocity measurement, the following units are available:

SFPM - Standard feet per minute M/S - Meters per second

Table 2 Available Velocity Ranges

Note: Air velocity and flow readings are based upon standard dry air conditions with an ambienttemperature of 70°F and a barometric pressure of 29.92 INHG.

INPUT RANGE INWC0 - 0.10 - 0.250 - 0.50 - 10 - 2.50 - 50 - 100 - 25

SFPM RANGE0 - 12660 - 20020 - 28320 - 40040 - 63320 - 89540 - 12.66 x IK0 - 20.02 x IK

M/S RANGE0 - 6.4310 - 10.170 - 14.390 - 20.350 - 32.170 - 45.480 - 64.330 - 101.7

I N WC - Inches of water columnFTWC - Feet of water columnMMWC - Millimeters of water columnCMWC - Centimeters of water columnPS I - Pounds per square inchI N HG - Inches of mercury

MMHG - Millimeters of mercuryMBAR - MillibarPA - PascalKPA - KilopascalsHPA - HectopascalsOZ I N - Ounce inches

Note: OVFL (over flow) or UnFL(under flow) will appear when the ranges have been exceeded aboveor below full scale by 2%.

13

FLO (Flow) SUB MENUFor flow measurements the following units are available:

SCFM - Standard cubic feet per minuteM^3H - Cubic meters per hour

FLO r (Flow Range) SUB MENULO - 99.99 x 1K flow rangeH I - 999.9 x 1K flow range

Tables 3 -6 show the flow ranges available, and the maximum duct size that can be set for each inputrange.

Table 3 FLOr = LO Maximum Duct Size (English)RANGEIN WC0.10.250.512.551025

SCFMRANGE99.99 x 1K99.99 x 1K99.99 x 1K99.99 x 1K99.99 x 1K99.99 x 1K99.99 x 1K99.99 x 1K

MAX. DUCTSIZE, SQ. FT.78.949.935.324.915.711.17.8 4.9

KFAC SUB MENU

KFAC K Factor - becomes accessible if the instrument is set for Velocity or Flow. When the Digihelic® II Controller is used with a pitot tube, the manufacturer may specific a K Factor.The adjustment range is 0.01 to 2.00. The factory setting is 1.

Table 4 FLOr = H I Maximum Duct Size (English)RANGEIN WC0.10.250.512.551025

SCFMRANGE999.9 x 1K999.9 x 1K999.9 x 1K999.9 x 1K999.9 x 1K999.9 x 1K999.9 x 1K999.9 x 1K

MAX. DUCTSIZE, SQ. FT.789.8499.5353.1249.7157.9111.778.9 49.9

Table 5 FLOr = LO Maximum Duct Size (Metric)RANGEIN WC0.10.250.512.551025

Mˆ3/HrRANGE99.99 x 1K99.99 x 1K99.99 x 1K99.99 x 1K99.99 x 1K99.99 x 1K99.99 x 1K99.99 x 1K

MAX. DUCTSIZE Mˆ24.32 2.731.931.370.860.610.430.27

Table 6 FLOr = H I Maximum Duct Size (Metric)RANGEIN WC0.10.250.512.551025

Mˆ3/HrRange999.9 x 1K999.9 x 1K999.9 x 1K999.9 x 1K999.9 x 1K999.9 x 1K999.9 x 1K999.9 x 1K

MAX. DUCTSIZE, Mˆ243.1927.3119.313.648.636.104.31 2.73

14

ArEA , D I A , XD I M and YD I M SUB MENUS

These SUB MENUS become accessible if the instrument is set for flow. When measuring flow, thearea of the duct must be specified. Tables 3 and 4 show the input range vs maximum flow and ductsize. For a rectangular duct the maximum size is specified in square feet or meters. For a circular ductthe maximum size is specified as the diameter. X, Y and circular dimensions are entered in feet with0.01 foot resolution for FLOr = LO and 0.1 foot resolution for FLOr = H I , or entered in millimeters with1 millimeter resolution.

ArEA - Area, select C I R for a circular duct or RECT for a rectangular duct. If a circular duct is selected, the D I A SUB MENU will be activated. If a rectangular duct is selected, the XD I Mand YD I M SUB MENUS will be activated.

D I A - Diameter, enter the diameter of a ductXD I M - Enter the “X” dimension of a ductYD I M - Enter the “Y” dimension of a duct

OUt (Output) MAIN MENU

The OUt MENU selects the output type of the instrument. The SUB MENUS are:

CtrL - Control type ALrE - Alarm reset, manual or autoI S P - SP1 reverse or direct acting AL . H - Alarm inhibitAL - Alarm type ALDL - Alarm delay

Y

X

15

0

100

Pro

cess

Reverse Acting

Time

SPH

SPL

Relay Inactive

Relay Active

CtrL (Control) SUB MENU

1 SP - Single set point2SP - Two fully independent set pointsSPAL - Single set point and alarm

1 SP (SP1 Reverse or Direct Acting) SUB MENU

D I R - Direct. Relay turns on with increasing pressureREV - Reverse. Relay turns on with decreasing pressure

0

100

Pro

cess

Direct Acting

Time

SPH

SPL

Relay Inactive

Relay Active

16

The following alarm function SUB MENUS are activated when CtrL is set to SPAL :

AL (Alarm Type) SUB MENU

H I - High alarmLO - Low alarmH I LO - For a high/low guardband type alarm

ALARM ADJUSTMENT

Alarm settings are dependent upon the selected alarm mode. The Digihelic® II Controller alarm maybe configured as a High Alarm, Low Alarm, or High/Low Alarm. Alarm settings are all absolute and maybe set to anywhere within the range of the instrument. The dead bands of the alarms are fixed at 1%of full scale.

MIN. PRESSURE MAX. PRESSURE

ALHI

Relay OFF Relay ON

HIGH ALARM FUNCTION


ALLO

Relay ON Relay OFF

LOW ALARM FUNCTION


ALLO

Relay ON Relay OFF Relay ON

HIGH/LOW ALARM FUNCTION

ALHI

17

ALrE (Alarm Reset) SUB MENU

ONOF - Automatic resetHOLD - Manual reset. An alarm is reset by the RESET key on the front panel, or an external

reset switch.

AL . H (Low Alarm Inhibit) SUB MENU

ON - Alarm inhibit is onOFF - Alarm inhibit is off

If AL . H is selected ON, a low alarm condition is suspended upon power up until the process value passes through the alarm set point once.

ALDL (Alarm Delay) SUB MENU

Sets the amount of time an alarm condition must be continuously met before the alarm condition is recognized. The alarm delay is adjustable from 0-3600 seconds.

d . S (Display) MAIN MENU

PEAK - Peak value rESO - ResolutionVALy - Valley value Pd . S - Process displayZERO - Zero DAMP - Dampening level

PEAK (Peak) SUB MENU

The Peak feature stores the highest pressure reading the instrument has measured since the last reset or power up. At power up PEAK is reset to the present pressure reading. To manually reset the PEAK value, press the RESET key while in the PEAK SUB MENU.

VALy (Valley) SUB MENU

The valley feature stores the lowest pressure reading the instrument has measured since the last reset or power up. At power up VALy is reset to the present pressure reading. To manually reset the VALy value, press the RESET key while in the VALy SUB MENU.

18

rESO (Resolution) SUB MENU

The Digihelic® II Controller is capable of displaying four digits of resolution. However, at very low pressures the instability of the pressure may cause fluctuations in the least significant digit causing the least significant digit to be of little value.Three digit resolution (3D I G ) can only be active when there is at least one digit to the right of a decimal.

3D I G - Set display for 3 digit resolution4D I G - Set display for 4 digit resolution

Pd . S (Process Display) SUB MENU

STD - Display reads pressure, velocity, or flow valuesPCT - Display reads % of full scale value

When the display is reading percent, PCT is displayed in the upper right of the display. The percent display is only available in pressure operation.

DAMP (Dampening) SUB MENU

Adjust from 1-16

Dampening stabilizes the display from instabilities due to things such as vibration and excessive pressure fluctuations. The dampening setting adjusts the amount of readings that are averaged for each display update. Adjust the dampening value until the display reads a stable value for the application.

AdU (Advanced) MAIN MENUPOL - Process output low ADDR - Modbus® addressPOH - Process output high WR - Modbus® write enable/disableMSP 1 - Maintenance set point 1 ZERO - Zero calibrationMSP2 - Maintenance set point 2 SPAN - Span calibration

POL and POH (Process Output Low and High) SUB MENUS

This feature is used in pressure operation only.

Process output low and high are used to scale the 4-20 mA output. Set POL to the desired display reading for 4mA output, and set POH to the desired display reading for 20 mA output. POH must be higher than POL . POL may be adjusted 2% BELOW minimum scale up to POH . POH may be adjusted from POL to 2% ABOVE maximum scale.

MSP 1 and MSP2 (Maintenance Set Point 1 & 2) SUB MENUS

Adjust for the desired maintenance set points when the unit is placed in the maintenance mode. The deadband is fixed at 2% of full scale. To enter or leave the maintenance mode, press and hold the for 8 seconds.

ADDR (Modbus® Address ) SUB MENU

Modbus® communication instrument address. Set from 1 to 247. This number must match the address number used by the host computer. To obtain the Digihelic® II Controller Modbus® register list please visit www.dwyer-inst.comSee page 4 for wiring diagram.

WR (Modbus® Write Protect) SUB MENU

d . S - Disables write commands from Modbus®. Modbus® can only read information from the instrument.

En - Enable write commands from Modbus®. Modbus® can read information from and write information to the instrument.

ZERO and SPAN (Calibration of Zero and Span) SUB MENUS

The lower display reads CAL in this mode.

ZERO CalibrationNote: For accurate calibration, DO NOT apply any pressure when performing this function.

With the display reading ZERO , press the ENTER key. The upper display will blink. Press ENTER again to complete the zeroing of the instrument or press the MENU key to cancel.

SPAN CalibrationWith the display set to SPAN , apply full scale pressure to the unit. Press the ENTER key. The upper display will blink. Press ENTER again to complete the calibration or press the MENU key to cancel.


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©Copyright 2017 Dwyer Instruments, Inc. Printed in U.S.A. 6/17 FR# 443434-00 Rev. 4

DWYER INSTRUMENTS, INC. Phone: 219/879-8000 www.dwyer-inst.comP.O. BOX 373 • MICHIGAN CITY, IN 46360, U.S.A. Fax: 219/872-9057 e-mail: [email protected]

series dhii digihelic ii differential pressure controller ...notes: 1. the instrument may be powered...

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