URx20xE – Gas detectors with 4÷20 mA output and 4 relay outputs – ATEX Ex d

ATEX Ex d certified gas detector 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, fail) that can be freely selected using 4 relay outputs (with optional card UZR20.4 ).

Power supply: 11÷28 Vdc
Signal outputs: 4÷20 mA
Command outputs: 4 SPDT relays (with card UZR20.4)
Sensor: S (Standard) or P (Professional)
Protection mode: ATEX II 2G Ex d IIC T6 Gb
Ambient temp.: -20 °C/+50 °C

Please contact head office for any gas not included in the list below

Sensigas URx20xE documentation
Sensigas URD20SE CARBON DIOXIDE documentation
Sensigas URS20SE OXYGEN documentation

URx20PE

Professional sensor(P)

URB20PE GASOLINE VAPOUR (B)
URC20PE PROPANE (C)
URE20PE ETHYL ALCOHOL (E)
URG20PE METHANE (G)
URI20PE HYDROGEN (I)
URL20PE ACETYLENE (L)
URM20PE AMMONIA (M)
URO20PE CARBON MONOXIDE (O)
URP20PE LPG (P)
URT20PE OCTANE (T)

URx20SE

Standard sensor(S)

URB20SE GASOLINE VAPOUR (B)
URC20SE PROPANE (C)
URE20SE ETHYL ALCOHOL (E)
URG20SE METHANE (G)
URI20SE HYDROGEN (I)
URL20SE ACETYLENE (L)
URM20SE AMMONIA (M)
URO20SE CARBON MONOXIDE (O)
URP20SE LPG (P)
URT20SE OCTANE (T)

URD20SE & URS20SE

Standard sensor(S)

URD20SE CARBON DIOXIDE (D)
URS20SE OXIGEN (S)

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