ANNOVEX Temperatur Sensor
ANNOVEX Temperature-Sensor

ANNOVEX Temperatur Monitor
ANNOVEX Temperature-Monitor with AVS 3

ANNOVEX ex
Temperature-Sensor/Transmitter Type GMA 10.10.xxx
Temperature-Monitor Type GMA 10.10.xxx

  • ex I M1 Ex ia I Ma
  • Linearized measured value display from –20.0...+60.0 °C
  • Platinum-resistance element PT 100 for a maximum of stability
  • Special form of the sensor element results in low response times
  • Data processing by microcontroller system
  • Output range of the output signal is variable
  • Illuminated four-digit display
  • Adjustments or status enquiries by means of a press button unit or a magnetic pointer. The housing need not be opened
  • Code lock to prevent unauthorized manipulation (can be switched off)
  • Fault self diagnosis with alpha numeric display
  • Test of the output signal by simulated values
  • Choice between normed analog or digital output signals (optional)
  • Two built-in limit switches with optocouplers or relays in the monitor
  • Audio visual alarm unit optional (Monitor)
  • Sensor can be replaced on site
  • Housing protection rating IP65

The economical, permanently installed temperature-sensor/transmitter and temperaturemonitor are characterised by their stable measurements, simple and secure operation, robustness, low weight and compact construction.

These devices conform to the explosion protection rating of intrinsic safety „i“, catagory I M1 Ex ia I Ma. This means that this device can be used in the zone M1 of underground mines, even when unpermitted high concentrations of the methane gas are prevailing.
This certification conforms to the ATEX directive 94/9/EG for devices and protective systems
permitted for use in areas endangered by explosions.

The temperature-monitor differs from the temperature-sensor/transmitter because of an additional limit value unit which is equipped with optocouplers or relays.

The surroundings temperature is registered in the sensor block according to the change in the
resistance of the platinum-resistor. The special design of the sensor block results in a quick response to the temperature changes

The operation of the device is very simple: The operator places a small magnetic press button unit on the device. The housing need not be opened. As an alternative he can also use a magnetic pointer. A four digit code which can be entered initially, protects against unauthorized changing of the set values. A self monitoring microcontroller system not only processes the measurement values precisely, it also carries out the operator specific instructions such as the entry of the code, signal instructions and messages, analog and digital outputs and test functions etc. A four digit back lit graphic display shows the measured values in 12 mm high digits.

These devices are placed in a fibre reinforced resin housing (impact strength 7 Joule) and are to be connected by means of a plug-in connector. The sensor block with the temperature-sensor is located next to the connector and it can be replaced easily on the underground site.
For the suspension of the device a steel hanger is attached. Holes on the back of the device
permit a rigid mounting. In addition the temperature-monitor can be equipped with an audio visual alarm unit for giving alarms in the monitored area (see opposite illustration).

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