URx21xE – 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: 10÷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
Extended Temp. Range (On request): -40 °C/+70 °C

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

Sensigas URx21xE documentation
Sensigas URD21IE CARBON DIOXIDE documentation
Sensigas URS21.E OXYGEN documentation

Professional sensor (P)

URx21PE

URB21PE GASOLINE VAPOUR (B)
URC21PE PROPANE (C)
URE21PE ETHYL ALCOHOL (E)
URG21PE METHANE (G)
URI21PE HYDROGEN (I)
URL21PE ACETYLENE (L)
URM21PE AMMONIA (M)
URO21PE CARBON MONOXIDE (O)
URP21PE LPG (P)
URT21PE OCTANE (T)

Standard sensor (S)

URx21SE

URB21SE GASOLINE VAPOUR (B)
URC21SE PROPANE (C)
URE21SE ETHYL ALCOHOL (E)
URG21SE METHANE (G)
URI21SE HYDROGEN (I)
URL21SE ACETYLENE (L)
URM21SE AMMONIA (M)
URO21SE CARBON MONOXIDE (O)
URP21SE LPG (P)
URT21SE OCTANE (T)
URS21SE OXIGEN (S)
URD21IE 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-URx21PE

DN-URB21PE GASOLINE VAPOUR (B)
DN-URC21PE PROPANE (C)
DN-URE21PE ETHYL ALCOHOL (E)
DN-URG21PE METHANE (G)
DN-URI21PE HYDROGEN (I)
DN-URL21PE ACETYLENE (L)
DN-URM21PE AMMONIA (M)
DN-URO21PE CARBON MONOXIDE (O)
DN-URP21PE GPI (P)
DN-URT21PE OCTANE (T)

Standard sensor (S)

DN-URx21SE

DN-URB21SE GASOLINE VAPOUR (B)
DN-URC21SE PROPANE (C)
DN-URE21SE ETHYL ALCOHOL (E)
DN-URG21SE METHANE (G)
DN-URI21SE HYDROGEN (I)
DN-URL21SE ACETYLENE (L)
DN-URM21SE AMMONIA (M)
DN-URO21SE CARBON MONOXIDE (O)
DN-URP21SE LPG (P)
DN-URT21SE OCTANE (T)
DN-URS21SE OXIGEN (S)
DN-URD21IE 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-URx21PE

DR-URB21PE GASOLINE VAPOUR (B)
DR-URC21PE PROPANE (C)
DR-URE21PE ETHYL ALCOHOL (E)
DR-URG21PE METHANE (G)
DR-URI21PE HYDROGEN (I)
DR-URL21PE ACETYLENE (L)
DR-URM21PE AMMONIA (M)
DR-URO21PE CARBON MONOXIDE (O)
DR-URP21PE GPI (P)
DR-URT21PE OCTANE (T)

Standard sensor (S)

DR-URx21SE

DR-URB21SE GASOLINE VAPOUR (B)
DR-URC21SE PROPANE (C)
DR-URE21SE ETHYL ALCOHOL (E)
DR-URG21SE METHANE (G)
DR-URI21SE HYDROGEN (I)
DR-URL21SE ACETYLENE (L)
DR-URM21SE AMMONIA (M)
DR-URO21SE CARBON MONOXIDE (O)
DR-URP21SE LPG (P)
DR-URT21SE OCTANE (T)
DR-URS21SE OXIGEN (S)
DR-URD21IE 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