Gas detector control unit Gasflag

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: • - 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 Specifications Size - 210 h x 145 w x 46 d mm (8.25 x 5.75 x 1.75 inches) Weight - <500 g (1.1 lb) Enclosure material - ABS Sensor connection - Two or three wire connection to sensor via screened cable Operating voltage - 13-28 V dc Input type - 4-20 mA sink or source (selectable) Panel indication - Power Healthy Green LED System fault Amber LED Alarm 1 & Alarm 2 Red LEDs Fault current - 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) Humidity - 0-99% RH, non-condensing Trip point hysteresis - Alarm hysteresis set at approximately 0.5 mA Fault hysteresis set at approximately 0.2 mA Response time - Time to alarm <1 second Connections - Terminals accept cables of cross sectional area 0.5 to 2.5 mm2 Relay outputs - Single pole change-over for use with dc signals The relay contacts are rated 1A at 30 V dc Standards - EMC EN50270 Ingree protection - IP20