Comet M1200E, Инструкция по эксплуатации

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IE-MLG-M1200E-01
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Selftest error ____________________________________
The selftest is used for monitoring the state of the batteries. If the
Multilogger reports this error, the batteries are empty. You can check
the battery status in the System information menu or in the software
COMET Vision on the Device home page. If the battery voltage drops
under 3.45 V, the Multilogger reports a self-test error. A drop of the
power supply voltage is also indicated by the given symbol
on
the device status line. The batteries have to be recharged or replaced.
Measurement accuracy problems ____________________
In a majority of cases, incorrectly measured temperature values are
caused by an incorrect position of the probes or measuring method.
Some comments related to this topic are shown in the next Chapter,
Operation and maintenance recommendations.
When measuring temperature using thermocouples, you have to make
sure that neither the measuring ends, nor conductors are connected to
any conductive parts that may cause unwanted couplings. This may, in
exceptional cases even cause damage the device.
If the Multilogger reports an error state, you can find more information
in
Appendix 1 - Selected error messages .
Another group of problems are random spikes of the measured values.
Most commonly, they are caused by a source of electromagnetic
interference located in the proximity of the device or cables.
Furthermore, you have to also make sure that the insulation of the
cables is not damaged and that conductors thus do not make any
incidental connections with other metal parts.
PC communication problems _______________________
If the Multilogger communicates via USB interface, do not use cables
longer than 5 meters. Connecting and disconnecting the cable while
the communication is in progress can cause temporary unavailability
of the USB device in the computer. In this case, it may be necessary
to close and re-launch the SW (including the communication service).
If this does not help, restart the computer.