Air Quality Meter to detect carbon dioxide (CO2) / 2 configurable alarm thresholds / 
4-digit digital display / integrated alarm transmitter / simple wall assembly

The air quality meter WMM 50 is a well-priced device to detect carbon dioxide (CO2). The air quality meter WMM 50 prevents heath issues caused by the colourless and inodorous gas, used in the food industry, metal industry, in chemical processes and in the waste industry. The air quality meter consists of two units: the detector is to be placed within locations with higher risks, while the alarm unit is placed outside that area. The air quality meter features two adjustable alarm thresholds. If the measured value trespasses the pre-set threshold, an alarm is set-off (alarm lights and alarm-buzzer). The air quality meter PCE-WMM 50 featured a 4-digit digital display as well as four LED lights assuring a steady visual monitoring of the gas concentration. Through the accessible, potential-free change-over contacts you can activate further alarm units, switch-on an exhauster or stop a machine. The air quality meter PCE-WMM 50 can be easily mounted to a wall. It consists of a system compartment, a air quality meter, an alarm unit and a cable to connect the air quality meter with a remote controlling unit. Even smaller amounts of carbon dioxide might cause severe effects on the human organism. A concentration above 0.3 % in the air might effect the health. If the concentration arises to 5 %, it causes headaches and dizziness, while a concentration of more than 8 % lead to unconsciousness and even death.

Air Quality Meter WMM 50

  • Gas Detector
    Measured gas carbon dioxide (CO2): 0 ... 50,000 ppm (5%) (vol.) NDIR sensor
    Temperature (gas / environment) 0 ... +45 °C
    Supply of gas samples by diffusion
    Alarm contacts - 1 potential-free change-over contactor to control external devices (NO/NC) by releasing alarm 1
    - Switching power: 30 V DC / 250 V AC, max. 2 A
    Alarm thresholds alarm 1
    0.5 / 1 / 1.5 / 2 %
    alarm 2 
    1.5 / 2 / 2.5 / 3 / 3.5 / 4 %
    Menu items Function test of connection between detection unit and alarm unit, calibration, switch between °C and °F, alarm 1, 2 and factory setting
    Display elements - 4-digit digital display for measured gas concentration within range 0 ... 9999 ppm 
    - 3-digit digital display for measured gas concentration within range 1 ... 5 %
    - additional 3-digit digital display for measurement and temperature in °C and °F
    - LEDs for operation, alarm 1, 2 and monitoring of voltage supply
    Operating elements reset, menu selection, enter
    Safety Continuous self-surveillance of temperature range, sensor life-time, unplausible values, EEPROM system, internal data transfer
    Enclosure synthetic, IP 54, splash-water proof
    Diameters 168 x 125 x 47 mm (without connections)
    Voltage Supply Adapter 100 ... 240 V AC, 50 / 60 Hz
    Measuring unit
    Temperature (gas / environment) 0 ... +45 °C
    Menu items - 4-digit digital display for gas concentration within range 0 ... 9999 ppm 
    - 3-digit digital display for concentration within range 1 ... 5%
    - additional digital display to measure temperature in °C and °F
    - LEDs for operation, alarm 1, 2 and monitoring of voltage supply
    Display elements Function test, reset, menu selection, enter, shifting between °C and °F
    Enclosure aluminum, IP 54, splash water proof 
    Diameters 118 x 85 x 34 mm (without connections)
    Voltage Supply via data cable to gas detector

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