INM MTL 130-0126 Rev 1332.12 Alarm outputs (K1650 only)4 alarms, volt free C/O contacts rated at 30V ac or dc, 1A - normally energisedAlarm 1 – configurable as either concentration of Carbon Dioxide in Air or ‘Fault’Alarm 2 - configurable as either concentration of Hydrogen in Carbon Dioxide or ‘HydrogenPurity Range Selected’Alarm 3 and 4 - concentration of Hydrogen in AirWhen configured as a concentration alarm each is user programmable for:-Mode - HIGH, LOW or OFFLevel - over full display range of instrumentHysteresis - 0% to 10% of set point.2.13 Environmental conditionsAmbient operating temperature rangeK6050 -5°C to 40 °CK1650 instrument -5°C to 40°C, sensor -10°C to 55°C(0 - 80% RH non-condensing)Storage temperature rangeK6050 -20°C to 55°CK1650 instrument -20°C to 50°C, sensor -20°C to 60°C(0 - 80% RH non-condensing)AltitudeUp to 2000mPollution degreePollution degree 22.14 Power supplyK1650110 to 120V or 220 to 240V at 50 to 60 Hz at 12VAK6050Internal rechargeable battery, supplied with an external switch mode supply:Input 110V to 240V at 47 to 63HzOutput 12V at 1.25A max.2.15 Enclosure detailsK6050Material: ABS case with mild steel instrument panel.Protection: With lid closed IP65, with lid in open position IP41Weight: Approximately 5.5kg excluding packaging.Dimensions: 338mm wide x 295mm deep x 152mm high with lid closed - see Figure 1.K1650Material: Instrument assembly - glass fibre reinforced Noryl. Mounting panel - mild steelProtection: When panel mounted (rear of instrument not exposed) IP40, IP30 otherwise.Weight: 2kg approx.