OLCT 80 WirelessWireless Fixed Detector

Wireless field detector and transmitter for detection of oxygen, combustible, toxic and refrigerant gases in remote locations

Now Available in Wireless! The new OLCT 80 model builds on an established design to provide

wireless connectivity in ATEX 1 zones. Providing a range of up to 3km

the OLCT 80 utilises binding technology to ensure that the signal is free

from distortion or interference

Lower Installation Costs Eliminating the need for point-to-point wiring, the operation of the

OLCT80 wireless is as simple as one single field device communicating

with a controller, remote display and alarm station.

Signal Processing you can Rely on The transceivers operate at a universally accepted frequency of 2.4 GHz

and have the capability to transmit signal data from various inputs or

serial MODBUS outputs.

KEYBENEFITS• Suitable design for use in explosive

areas

• On-board display allows

noninvasive one-man calibration

• Reduces installation costs by

eliminating cabling and wiring

• Available with flameproof or

intrinsic-safety sensors

• It can be linked via secure network

to monitor large remote areas

The OLCT 80 Wireless is suited for transmitting signal data in a wide range of industrial applications

“ “

H2S

GASESANALYSED

O2NO CO

Cl2

NO2

SO2

HCl

H2

PH3 O3NH3 CH4

AsH3 SiH4

TECHNICALSPECIFICATION

GENERAL • Low power requirement

• 1-3KM line-of-sight range

• Robust mesh network topology (option)

• Wireless connectivity in ATEX 1 zones

PERFORMANCE • Operating Temp: -20°C to +55°C

• Pre-calibrated sensor

• Detected gases: Explosive or toxic gases, or O2

PHYSICAL• Enclosure material: Epoxy coated aluminium

316 stainless steel sensor

• Weight: 4 kg

POWER• Supply: 16 to 28 V DC optional solar panels available in

ATEX version

• Cable entry: 4 M20 & 2 M25 cable entries

• Analogue input: 2 analog input 4-20 mA (load resistance

120 Ω)

• Loop impedance with OLDHAM controller:

128 Ω (electrochemical), 32 Ω (catalytic), 16 Ω (OLCT 80 XP IR)

POWER CONSUMPTION • With digital link: 9 W (electrochemical) - 10 W (catalytic)

- 12.5 (IR)

• With signal output at 25mA: 9 W (electrochemical) - 10 W

(catalytic) - 13.2 (IR)

• With signal output set at 25 mA and activated relays:

10.4 W (electrochemical) - 11.5 W (catalytic) -14.7(IR)

SPECIFICATIONS ANTENNA• Frequency band 900 MHz or 2400 MHz - to be specified

when ordering

• Impedance : 50 Ω

• Gain 2dBi

• Power 2 watts

OUTPUT SIGNAL • Logic: 3 dry relay contacts (Fault, Al1, Al2)

• Analogue: Standardised 4-20 mA output

• Digital: one serial RS485 output

• Signal faults: 1 < 0.5 mA

• Alarms: 2 programmable thresholds per channel

RELAYS• 3 relays, RCT change over

• Relay rating: 2 A @250 VAC or 30 VDC

• Load resistance: 500 Ω

APPROVALS • EEx d IIB T5 (T 100°C) for OLCT 80 with flameproof sensor

• EEx d [ia] ia IIB T4 (T 135°C) for OLCT 80 with intrinsically

safe sensor

• Certificate INERIS 03ATEX0240X

• Ingress protection: IP 66

11 Ark Royal Way, Lairdside Technology Park, Tranmere, Wirral, CH41 9HTT: +44(0)151 666 8300 F: +44(0)151 666 8329 E: sales@a1-cbiss.com W: www.a1-cbiss.com Buy Online: shop.a1-cbiss.com

Cert No. 996ISO 9001