Bacharach MGS-550 User Manual

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Bacharach MGS-550 User Manual Manual pdf 26 page image

MGS-550 Fixed Gas Detector26 P/N: 1100-1000 Version 1# Test Description1 RelayThe relay test changes the state of each relay. Use the [UP] / [DOWN] key totoggle the relay. Tap [ENTER] to test the next relay. Tap [i] to exit the function.Note that changing the state of the relays can trigger alarms in connectedequipment.2 AnalogOutputThe analog output test allows you to set the output for interface test purposes(e.g., to check the programming of a central controller).Tapping [ENTER] will set the analog output to the level equivalent to zero gas.For a 4 to 20 mA configuration this output will be 4 mA; for a 1 to 5 Vconfiguration this output will be 1 V; and so on. Use the [UP] / [DOWN] key tochange the value of the zero output.After tapping [ENTER], the analog output will be set to full scale. Use the [UP] /[DOWN] key to adjust the value of the full-scale output.NOTICEChanging the analog outputs can trigger alarms inconnected equipment.3 Display The display test lights up all segments and LEDs.4.3.5 Parameter Menu (F-05)Use this function to access the parameter menu. See section 4.2.4: Menu Overview on page 23 andsection 4.4: Parameters on page 29 for detailed information.4.3.6 Register Sensor (F-06)Function F-06 is used to register a new sensor without having to cycle power.In general, sensor registration is the association of parameters in the instrument to the set in the sensor.Registration occurs at the factory for the local sensor and is based on the sensor configuration that isordered. If the sensor configuration must be changed (e.g., changing a sensor type or adding a secondsensor), then the new sensor must be registered.CAUTIONBefore unplugging ANY sensor, it must be de-registered using function F-07.Failure to do this will require you to de-register all sensors using F-08 (with the sensorsstill connected to the main electronics), remove the sensors, and then re-install and re-register the sensors one at a time using function F-06.If the sensors are not connected when an F-08 is performed, then their node addresseswill not be reset. Refer to CAUTION on the following page.Generally, a new sensor is discovered and registered automatically when the following occurs:• power is shut off• the new sensor is connected, and• power is then restored.For example, if you wish to add a second sensor to a previously installed single-sensor system, simplyturn off power, add the new sensor to the available (previously unoccupied) sensor connector, and turnon power. Upon power up, the instrument will recognize and register the new sensor that you installed inthe previously unfilled slot.If it is inconvenient or impractical to cycle power to automatically register a new sensor, then the processis performed manually using the Register Sensor function F-06.www. .com information@itm.com1.800.561.8187