URx20xL – Gas detectors with 4÷20 mA output and 4 relay outputs – IP55

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 dip-switch (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 rating: IP55
Ambient temp.: -20 °C/+50 °C

URx20PL

Professional sensor (P)

URB20PL GASOLINE VAPOUR (B)
URC20PL PROPANE (C)
URE20PL ETHYL ALCOHOL (E)
URG20PL METHANE (G)
URI20PL HYDROGEN (I)
URL20PL ACETYLENE (L)
URM20PL AMMONIA (M)
URO20PL CARBON MONOXIDE (O)
URP20PL LPG (P)
URT20PL OCTANE (T)

URx20SL

Standard sensor(S)

URB20SL GASOLINE VAPOUR (B)
URC20SL PROPANE (C)
URE20SL ETHYL ALCOHOL (E)
URG20SL METHANE (G)
URI20SL HYDROGEN (I)
URL20SL ACETYLENE (L)
URM20SL AMMONIA (M)
URO20SL CARBON MONOXIDE (O)
URP20SL LPG (P)
URT20SL OCTANE (T)

URD20SL & URS20SL

Standard sensor(S)

URD20SL CARBON DIOXIDE (D)
URS20SL 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