De WatchGas 404+ is ontworpen met functies die effectief reageren op de detectie van gasgevaren in diverse omgevingen, van commerciële ruimtes tot zware industriële toepassingen waar detectie in risicovolle zones vereist is.
Acoustic: Lo, Hi, OR and Fault, 68dB @ 1m, permanent mute option Visual: Power - Green LED Mains Fail - Power Indicator change Green to Amber - when battery fitted Alarms - Red LED and display channel with alarm text Fault - Amber LED Display - Gas Readout, alarm status, gas type, location System Test - Alarm LED's Flashing/Relay
Common Relays • High Alarm RL2 - D.P.C.O normally energised or de-energised- default set ND • Latched or Unlatched - default set latched • Low Alarm RL1 - D.P.C.O. normally energised or de-energised- default set ND • Latched or Unlatched - default set latched • Fault Alarm RL3 - S.P.C.O. normally energised or de-energised- default set ND • Latched or Unlatched - default set latched • Over-range RL4 - S.P.C.O. normally energised or de-energised- default set ND • Latched or Unlatched - default set latched • Global Alarm Relay RL5 - S.P.C.O. changes on all alarms and is resettable at all times • Inhibit Indicator - RL6 - S.P.C.O. contacts 1A@24v DC Channel Relays • High and Low Alarm relays S.P.C.O. normally energised or de-energised- default set ND • Latched or Unlatched - default set
Power Supply
230/115v AC or 24v DC 12 watts - Full Alarm
Channels
1-4
Sensor Inputs
Bridge type 3 wire mv (Catalytic) 2 or 3 wire 4~20mA (Infrared/Catalytic/PID/Semiconductor)
Channel Outputs
Analogue output 4-20mA into 200 ohms max load
Measurements
Combustible Gas - LEL, %Vol. Toxic Gas - ppm Oxygen - %Vol. - Depletion / Enrichment Refrigerant - ppm Any 4~20mA Transmitter
IP Rating
IP52 *IP65 available with over housing*
EMS
EMC BS EN 50270 / Low Voltage Directive BS EN 61010-1
Miscellaneous
Remote Accept / Reset System Lamp Test Enclosure - 20mm Cable Entry - Base / Rear Optional Battery Backup - 1 hour Delay to Alarm Option 10s, 30s, 10m
Typische locaties voor monitoring zijn openbare gebouwen, ketelruimtes, zwembaden, waterzuiveringsinstallaties, HVAC-regelsystemen, en productie- en procesinstallaties.
