URx21xI – Gas detectors with 4÷20 mA output and 4 relay outputs – IP65

Gas detector in IP65 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)
Sensor: S (Standard) or P (Professional)
Protection rating: IP65
Ambient temp.: -20 °C/+50 °C
Extended Temp. Range (On request): -40 °C/+70 °C

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

Sensigas URx21xI documentation
Sensigas URD21II CARBON DIOXIDE documentation
Sensigas URS21SI OXYGEN documentation

Professional sensor (P)

URx21PI

URB21PI GASOLINE VAPOUR (B)
URC21PI PROPANE (C)
URE21PI ETHYL ALCOHOL (E)
URG21PI METHANE (G)
URI21PI HYDROGEN (I)
URL21PI ACETYLENE (L)
URM21PI AMMONIA (M)
URO21PI CARBON MONOXIDE (O)
URP21PI LPG (P)
URT21PI OCTANE (T)

Standard sensor (S)

URx21SI

URB21SI GASOLINE VAPOUR (B)
URC21SI PROPANE (C)
URE21SI ETHYL ALCOHOL (E)
URG21SI METHANE (G)
URI21SI HYDROGEN (I)
URL21SI ACETYLENE (L)
URM21SI AMMONIA (M)
URO21SI CARBON MONOXIDE (O)
URP21SI LPG (P)
URT21SI OCTANE (T)
URS21SI OXIGEN (S)
URD21II CARBON DIOXIDE (D)

  • 128x64 dot (32x18mm) backlit graphic display
  • Hall sensors for menu navigation with magnetics actuator UCM (with enclosure closed)

Professional sensor (P)

DN-URx21PI

DN-URB21PI GASOLINE VAPOUR (B)
DN-URC21PI PROPANE (C)
DN-URE21PI ETHYL ALCOHOL (E)
DN-URG21PI METHANE (G)
DN-URI21PI HYDROGEN (I)
DN-URL21PI ACETYLENE (L)
DN-URM21PI AMMONIA (M)
DN-URO21PI CARBON MONOXIDE (O)
DN-URP21PI GPI (P)
DN-URT21PI OCTANE (T)

Standard sensor (S)

DN-URx21SI

DN-URB21SI GASOLINE VAPOUR (B)
DN-URC21SI PROPANE (C)
DN-URE21SI ETHYL ALCOHOL (E)
DN-URG21SI METHANE (G)
DN-URI21SI HYDROGEN (I)
DN-URL21SI ACETYLENE (L)
DN-URM21SI AMMONIA (M)
DN-URO21SI CARBON MONOXIDE (O)
DN-URP21SI LPG (P)
DN-URT21SI OCTANE (T)
DN-URS21SI OXIGEN (S)
DN-URD21II CARBON DIOXIDE (D)

  • 128x64 dot (32x18mm) backlit graphic display
  • Hall sensors for menu navigation with magnetics actuator UCM (with enclosure closed)
  • Control outputs: N. 4 SPDT relays integrated in the display board

Professional sensor (P)

DR-URx21PI

DR-URB21PI GASOLINE VAPOUR (B)
DR-URC21PI PROPANE (C)
DR-URE21PI ETHYL ALCOHOL (E)
DR-URG21PI METHANE (G)
DR-URI21PI HYDROGEN (I)
DR-URL21PI ACETYLENE (L)
DR-URM21PI AMMONIA (M)
DR-URO21PI CARBON MONOXIDE (O)
DR-URP21PI GPI (P)
DR-URT21PI OCTANE (T)

Standard sensor (S)

DR-URx21SI

DR-URB21SI GASOLINE VAPOUR (B)
DR-URC21SI PROPANE (C)
DR-URE21SI ETHYL ALCOHOL (E)
DR-URG21SI METHANE (G)
DR-URI21SI HYDROGEN (I)
DR-URL21SI ACETYLENE (L)
DR-URM21SI AMMONIA (M)
DR-URO21SI CARBON MONOXIDE (O)
DR-URP21SI LPG (P)
DR-URT21SI OCTANE (T)
DR-URS21SI OXIGEN (S)
DR-URD21II CARBON DIOXIDE (D)

UZR20.4

Relay card for URx21xx 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

  • Board with 1 optically isolated resistive output (two wires);
  • 22KOhm = normal operation, 10Kohm = pre-alarm,
  • 2.2KOhm = 1st threshold alarm, open = fault

UZS20.A

  • Board with 1 optically isolated resistive output (two wires)
  • 27KOhm = normal operation
  • 10Kohm = 1st threshold alarm, open = fault

UZS20.S

  • Board with 1 optically isolated resistive output (two wires)
  • 2.2KOhm = normal operation, 0 Ohm = 1st threshold alarm
  • open = fault

UCM

Magnetic actuator

Magnetic actuator to allow calibration of the Detector without the enclosure opening

PAP40

Protection screen

Front protection screen for splashes or excessive air flows