Advanced diagnostics, in accordance with NAMUR NE107.

classify alarms and warnings as ‘Maintenance Required’,

‘Check Function’, ‘Failure’ and ‘Out-of-Specification’. Cell

performance is monitored by the transmitter; indicators such as

cell impedance, rate-of-response to test gasses and changes in

calibration offset/factor are recorded and analyzed. The current

cell ‘quality’ is displayed by the transmitter as a visual indication

of the measurement confidence; providing the operator all the

information required to keep the monitor operating at peak

performance.

The IrDA standard infrared communication port can also be

used with the DTM to upload and download device

configurations. In addition, it enables data logged values and

diagnostics to be viewed on a hyperterminal interface or a PC.

The device’s firmware can also be upgraded using this port.