Warning systems

JCI gas warning control unit MPU2C: 2 channels, 230VAC / 24VDC, IP66

Order No.: 476.2269
Manufacturer number: MPU2C
Manufacturer: Johnson Controls

To subsequent product 476.4076

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Description

MPU2C two channel unit

The MPU is a microprocessor-controlled multi-channel gas warning system. Each channel (max. six channels) can be configured individually to monitor different gases with up to three alarm concentrations (each with its own LED status display).

Other features:

  • Adjustable ...

MPU2C two channel unit

The MPU is a microprocessor-controlled multi-channel gas warning system. Each channel (max. six channels) can be configured individually to monitor different gases with up to three alarm concentrations (each with its own LED status display).

Other features:

  • Adjustable alarm time delays.
  • Manual / automatic alarm reset for each channel
  • Built-in maintenance function and self-diagnosis program
  • Four alarm relays with 230 V (nominal voltage) single-pole switches (SPDT)
  • Fail-safe relay operation in the event of a power failure
  • Acoustic alarm
  • Backup battery available as an accessory
  • Low voltage output for additional alarm indication.

OPERATION
After connecting the detector and power supply, the green LED flashes as the warm-up process starts. After about four minutes,
the green LED lights up permanently to indicate that the sensor is ready for operation.

Each channel has one yellow and two red warning LEDs. The yellow LED shows a low gas leak (above alarm limit value C), the two red LEDs show gas concentrations above the limit values B and A.

When detecting gas concentrations that are higher than the respective limit values, the corresponding LEDs flash until the time delay has elapsed, after which the LED lights up permanently and the corresponding relay switches. After the gas concentrations have been eliminated, the LEDs and relays switch back to normal state, unless the "manual reset" function has been selected.

An acoustic alarm is triggered if this has been defined for the respective alarm limit. The alarm cannot be muted. Technicians can suppress the alarm by accessing the “Service program”.

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Accessories / Replacement parts

  • Alarmgeräte
    JCI high base SOCK-H-R-230: 230V, IP65
    Order No.: 476.2281
  • JCI siren red 1992-R-LP: 9-28V DC, IP54
    Order No.: 476.2201
  • JCI signal lamp red BE-R-24V: 9.60V DC, IP54
    Order No.: 476.2206
  • JCI combination signal lamp and siren red FL-RL-R: 18.28V DC
    Order No.: 476.2208
  • Diagnose- und Servicetool
    JCI gas warning - diagnose tool DT300: service device - basic
    Order No.: 476.2207
  • Sensoren
    JCI gas warning sensor f. synthetic refrigerant MP-D-HFC-4000: IP21, MPU/SPU
    Order No.: 476.2253
  • JCI gas warning sensor f. ammonia MP-D-NH3-4000: IP21, MPU/SPU
    Order No.: 476.2258
  • JCI gas warning sensor f. propane MP-D-Propane: IP21, MPU/SPU
    Order No.: 476.2259
  • JCI gas warning sensor f. synthetic refrigerant MP-DS-HFC-4000: IP54, MPU/SPU
    Order No.: 476.2263
  • JCI gas warning sensor f. ammonia MP-DS-NH3-4000: IP54, MPU/SPU
    Order No.: 476.2266
  • JCI gas warning sensor f. propane MP-DS-Propane: IP54, MPU/SPU
    Order No.: 476.2267
  • JCI gas warning sensor f. CO2 MPS-CO2-10000: IP67, MPU/SPU
    Order No.: 476.2268

Technical data

Dimensions
Width
255 mm
Height
60 mm
Length
180 mm
Sensor cable
3 x 0.75 mm²
max. 50 m
 
3 x 1.5 mm²
max. 150 m
 
(shielded)
General information
Alarm output
3 stages/channel
individually set from 0.5 to 4.8 V
Display
joint supply-LED
individual LED-channel display for sensor active and 3 alarm phases
Housing
ABS/PC Kunststoff
Electrical Data
Input
2, 4 or 6 channels
0-5 V DC
Protection class
IP66
Supply voltage
230/1/50 V/Ph/Hz
AC
24 V DC
Humidity
Relative humidity
10 bis 95 %
non-condensing
Temperature data
Operating range
0 bis 50 °C
Technical modifications reserved. Product images may differ from the actual product and are meant for demonstration purposes only. Absolutely no liability can be assumed for possible indication errors and errors in the manufacturers’ information.

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