URx21.P – Gas detectors with 4-20 mA output and 4 relay outputs – IP55 for car parks

Gas detector in IP55 metal enclosure with operating status LED, to warn of gas alarms through 4÷20 mA analogue output or at threshold limit setpoints (pre-alarm, level 1 and 2 alarms, failure) that can be freely selected using 4 relay outputs (with optional card UZR20.4).

Power supply: 10-28 Vdc
Signal outputs: 4-20 mA
Command outputs: 4 SPDT relays (with card UZR20.4)
Protection rating: IP55
Ambient temp.: -20 °C/+50 °C

Sensigas URx21.P documentation

Car parks gas detectors

URB21SP Gasoline
URG21SP Methane (G)
URO21SP Carbon monoxide (O)
URP21SP LPG (P)

* Other gases on request, consult the technical data sheet

UZR20.4

Relay card for URx20xx detectors

4 SPDT relays 50 mA at 24Vac/dc 100 mA at 12Vac/dc

UZS20.x

Module with n. 1 opto-isolated resistive output (two wires)

UZS20.E

  • 22KOhm = normal operation
  • 10Kohm = pre-alarm
  • 2,2KOhm = alarm threshold 1
  • open = failure

UZS20.A

  • 27KOhm = normal operation
  • 10KOhm = alarm threshold 1
  • open = failure

UZS20.S

  • 27KOhm = normal operation
  • 0 Ohm = alarm threshold 1
  • open = failure