WATCHGAS 101
A fixed single point 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.
- Sensor input select 4~20mA/mV BRIDGE;
- Three alarm stages + relays;
- 4~20mA analog output;
- Data logging;
Description
The WatchGas101 may be utilized 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
- Flammable, Oxygen, Toxic, and refrigerant gases;
- Data logging;
- Three alarm stages + relays;
- 4~20mA analog output;
- Sensor input select 4~20mA/mV BRIDGE;
- Backlit alphanumeric full status display;
- 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 back lit display Power - Green LED Alarms 1, 2, 3 - Red LED's Fault - Amber LED Alarms inhibit - Amber LED |
| Audible Alarm | 1, 2, 3 and Fault Alarms - mutable 85dB @ 10cm |
| Power Supply | 24v nominal 15 to 30vDC Option - 230/115v AC 50/60 Hz The two voltages may be utillised simultaneously - standby supply |
| Power Consumption | 4watts - full alarm |
| Outputs | 1, 2, 3 and fault alarm relays - SPCO normally de-energised - energised option, latched or unlatched All contacts rated 3A - 230v AC 4-20mA CANbus Logging - Intervals - Variable time Roll over/stop Storage - 2,880 readings Requires RS232 lead PC or laptop (dedicated) Hyperterminal - download from website |
| Alarm Settings | Digital setting (fully adjustable between zero and full scale) Delay to alarm |
| Sensor Inputs (jumper selectable) | Bridge type 3 wire detector mv (Catalytic) 4-20mA (electrochemical / infrared / catalytic / PID / semiconductor) |
| Sensor Cable | 3 core 1.5mm² screened 1.5km |
| Miscellaneous | Operating temperature -15 to +50°C Storage temperature -5 to 55°C Alarm relay inhibit during ccalibration Sounder inhibit System function test Dimensions L 145mm H 145mm D 65mm 24vDC version (S) Weight 0,8 kg Protection IP64 Field Terminals - screw type 2.5mm Cable entry - top, bottom, sides, rear |
