Technical specifications:
| Type | Control unit for location in a non-hazardous area | |||
| Gas and ranges | see transmitter type for gas name, measuring range and units | |||
| Inputs | all configuration via PC or laptop 4 to 20 mA transmitter with 2- or 3-core cable |
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| Outputs | Alarm 1, Alarm 2 and Fault as standard Warning and inhibit relays on optional relay module Single, common or voted alarms on optional relay module Acknowledgeable relays on optional relay module |
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| Display | Dräger REGARD ® 3900 and Dräger REGARD ® 3910 | 4 lines, 40 characters back-lit LCD 4 LEDs per channel (function, fault, Alarm 1 alarm 2) DC and AC power supply LEDs Inhibit-LED |
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| Dräger REGARD ® 3920 | Large graphic display (4 x 62 mm, 64 x 128 pixel)Menu structure and messages in real text 3 push button navigation 4 LEDs per channel (function, fault, Alarm 1 alarm 2) DC and AC power supply LEDs Inhibit-LED |
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| Power supply | External 24 VDC Internal 110 / 240 VAC, 50 / 60 Hz | |||
| Dimensions (W x H x D) | Dräger REGARD ® 3900 and 3920 | ca. 420 x 300 x 190 mm | ||
| Dräger REGARD ® 3910 | ca. 300 x 225 x 20 mm | |||
| Weight | ca. 3 kg, depending upon type and installed power supply | |||
| Ambient conditions | Temperature | 0 to 55 °C | ||
| Pressure | 700 to 1,300 hPa | |||
| Humidity | 0 to 100 % r.F., non-condensating | |||
| Protection class | IP 65 | |||
| Housing material | ABS OV | |||
| Approvals* | ATEX | II (2) G, TRL 06 ATEX 21099X | ||
| SIL | SIL 1 | |||
| CE-Zeichen | Electromagnetic Compability (Directive 89/336/EWG) |
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| DNV/GL | only Dräger REGARD ® 3910 | |||
| MED B+D | only Dräger REGARD ® 3910 | |||
