visilab MK30, User Manual

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Appendix 4. Troubleshooting the Meter
In cases where you meet troubles in getting the meter working correctly you may need assistance. The manufac-
turer is able to help you but to alleviate our burden, please check the following points before calling.
A. Symptom: No moisture signal to the PC, no contact with the MK30 program (or AK30Mini, IRMA7Mini
etc.), but the meter is working itself. Bluetooth operation only
1. Are you sure that the COMnn port you are using in the Bluetooth driver program is the same as the one the
PC program is using? This is absolutely the most frequent reason for communication problems with the meter
when using the Bluetooth option. Change the port selection on the program's Configuration page.
2. If done all right thus far and still no connection is established with the meter, press the reset button on the
Bluetooth master module connected to the USB and then go On-line in the program.
C. Symptom: The meter is dead.
1. Is the meter correctly powered? Are you sure? Are the displays showing something? If yes, the meter is
receiving power and/or its batteries are all right but may have a weak charge. If not, check the power cable from
the battery charger unit. It should be connected to a 230VAC or 110VAC wall inlet. Let's suppose the meter
is not in Low Power mode. If not certain, press the Low Power key to force some effect. Do you hear any beep
when a key is pressed? If not, the meter is either off or the batteries are dead. If the batteries are empty, charge
the meter overnight and try again.
2. Is the cable with the connector placed into the socket in the meter's handle? If there is still no power to the
meter, the power source may be faulty (rare). Let a technician check it or contact the manufacturer. A voltage
close to +9 ...+24 Volts should be available in it at the connector pins. All fuses in the system are self-
recovering and need no service.
3. Try to charge the battery for at least 5 hours with the meter turned off. If that does not help, there may be
some internal malfunctioning or damage. In some cases, the internal fuse has overheated and prevents both
battery charging and meter operation due to overload. Turn off the meter and try to charge it for at least 5
hours. If that does not help, the battery is really dead and does not take charge anymore. It must be replaced.
Usually a dead battery does not prevent using the meter but does not keep its charge.
C. Symptom: The moisture signal is incorrect.
1. Are you using the proper calibration table for it?
2. Have you made adjustments to the table used (with Adjust)? Could that explain this? Check the amount of
adjustment in the menu system, Calibration and Adjust.
3. Is the meter's position different from normal assembly? The sample could be seen differently if it is curved or
in a quite different angle or distance compared to the original position. Then, do the Adjust to correct it.
4. Have you accidentally changed the table's state from MULTI to SCALE? This is likely the most frequent
reason for an incorrect reading.
5. Is the head temperature too high? It should normally be below +45C. Has the meter been subjected to very
high ambient temperatures? If the temperature has risen too much, irreversible damage (or at least changes to
some important parameters) have been caused to the meter. In mild cases there is no serious damage but the
meter has gained some extra offset to its moisture signals.
If all attempts show no proper indication of a working meter, contact your dealer. Do not send back the
meter without permission.