Product finder

This page is being translated by Google Translate

Product finder

Find your product easily

Use our product finder to get to your gas detection solutions quickly.

WatchGas 102

A fixed dual sensor gas alarm unit that meets the requirements for economic and reliable monitoring of gas levels in a wide range of environments, from commercial premises through to heavy industrial applications that may require hazardous area sensing.

  • Two sensor inputs
    single mV / single 4~20mA
  • Traffic light status display
  • Data logging
  • Front panel access to set up and
    maintenance of parameters

Description

A fixed dual sensor gas alarm unit that meets the requirements for economic and reliable monitoring of gas levels in a wide range of environments, from commercial premises through to heavy industrial applications that may require hazardous area sensing.

 

The WatchGas 102 may be utilised as a standalone unit or as an addressable sensor forming part of the WatchGas Combi CANbus addressable network system and therefore offering the features of our most advanced system. Typical monitor locations are – public buildings, boiler plant rooms, swimming pools, water treatment works, H&V control systems, manufacturing and process plants.

Product information

  • Two sensor inputs
    single mV / single 4~20mA
  • Traffic light status display
  • Data logging
  • Three alarm stages + relays
  • Aspirated sensor option
  • 4~20mA analogue output
  • Weatherproof
  • Internal or remote sensor
    options
  • Front panel access to set up and
    maintenance of parameters
Measuring Range Combustible Gas – LEL, % Vol, ppm Toxic Gas – ppm Oxygen – % vol – Depletion or Enrichment Any 4~20mA source input signal
Indicators Two line alpha numeric display System Normal – Green / Blue display Alarms 1, 2, 3 – Red display Fault – Amber display
Audible Alarm 1, 2, 3 and Fault Alarms – mutable 85dB @ 10cm
Power Consumption 4 watts – full alarm
Outputs 1, 2, 3 and fault alarm relays – SPCO normally de–energised – energised latched or unlatched options Relay 3 selectable:- Duplicate Relay 1, 2, 4 or resettable global alarm relay Relay 4 selectable:- Fault or resettable global alarm relay All contacts rated 3A – 230v AC Selectable inhibit active indicator or resettable sounder output – o/c 100mA – 24v DC (Y -Output) 4~20mA signal output, Sink/Source. CANbus Internal mains power supply 24vDC @1.2A available to user 500mA
Alarm Settings Digital setting (fully adjustable between zero and full scale) Delay to alarms 0~255s Relay off delays 0~255s
Sensor Types Catalytic Electrochemical Infra Red PID Semiconductor E-Stop
Sensor Inputs (CH1) Bridge type direct 3 wire detector mV signal (Catalytic, IR, PID, Semiconductor, E-Stop) (CH2) 4~20mA analogue transmitter signal –source (Catalytic, Electrochemical, IR, PID, Semiconductor, E-Stop)
Sensor Cable 3 core standard, 2 core option for electrochemical transmitters, 1mm2 screened – 500m
Operating Temperature –15 to +50˚C
Storage Temparature –5 to +55˚C
Dimensions (L) 145 mm (H) 145 mm (D) 65 mm 24vDC version (S) (D) 100 mm AC version (D)
Weight 0.8 KG
IP-Rating IP64, IP66 over housing option

WatchGas 102 - Datasheet