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Crowcon Gasflag Detection Control System

18,360,000

Description

Gasflag is a control system for monitoring any 4-20mA flammable, toxic or oxygen gas detector. Gasflag is ideally suited to light industrial or commercial applications such as LPG monitoring on garage forecourts, chlorine detection in swimming pool dosing rooms, or methane detection in boiler rooms.

Gasflag features a loud sounder, bright LED indicators and relays for switching external devices such as audible visual alarms or valves.

Features Gasflag

  • Loud internal audible alarm
  • Clear system integrity indication
  • Accepts industry standard 4-20mA inputs
  • Multiple units can be daisy-chained
  • Variable alarm configurations
  • Integral alarm outputs
  • Simple installation
  • Minimum maintenance
  • One button operation

Specification

Gasflag Specifications

Size210 h x 145 w x 46 d mm (8.25 x 5.75 x 1.75 inches)
Weight<500 g (1.1 lb)
Enclosure materialABS
Sensor connectionTwo or three wire connection to sensor via screened cable
Operating voltage13-28 V dc
Input type4-20 mA sink or source (selectable)
Panel indicationPower Healthy – Green LED / System fault – Amber LED / Alarm 1 & Alarm 2 – Red LEDs
Fault current<3 mA and >23.5 mA (overrange fault)
Operating temperature-20°C to +70°C (-4°F to +158°F)
Storage-25°C to +65°C (-13°F to +149°F)
Humidity0-99% RH, non-condensing
Trip point hysteresisAlarm hysteresis set at approximately 0.5 mA / Fault hysteresis set at approximately 0.2 mA
Response timeTime to alarm <1 second
ConnectionsTerminals accept cables of cross sectional area 0.5 to 2.5 mm2
Relay outputsSingle pole change-over for use with dc signals / The relay contacts are rated 1A at 30 V dc
StandardsEMC EN50270
Ingress protectionIP20

 

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