KYORITSU 6315 Instruction Manual - Manual (Page 159)

11.1 General troubleshooting KEW6315
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11.
Troubleshooting
11.1 General troubleshooting
When defect or breakdown of the instrument is suspected, check the following points first. If your problem
is not listed in this section, contact your local Kyoritsu distributor.
Symptom Check
Instrument cannot be powered on.
(Nothing is displayed on the LCD.)
When operating with an AC power supply:
● Power cord is connected firmly and properly?
● No break in the Power cord?
● Supply voltage is within the allowable range?
When operating with batteries:
● Batteries are installed with observing correct polarity?
● Size AA Ni-HM batteries are full-charged?
● Size AA Alkaline batteries are not exhausted?
If the problem not solved yet:
● Disconnect the power cord from an AC power source, and
then remove all the batteries from the instrument. Insert the
batteries again, and connect the power cord to an AC power
source. Power on the instrument. If the instrument still does
not turn on, instrument failure may be suspected.
Any key doesn’t work. ● Key lock function is inactivated?
● Check the effective Keys on each Range.
Readings are not stable or
Inaccurate.
● Frequency at voltage ch1 is within the guaranteed accuracy
range? It should be between 40 and 70Hz.
● Voltage test leads and clamp sensors are connected properly?
● Setting of the instrument and the selected wiring configuration
are appropriate?
● Proper sensors are used with proper settings?
● There is no break in the voltage test leads?
● Input signal is not interfered?
● Strong electric magnetic field does not exist in close
proximity?
● Measurement environment meets the specification of this
instrument?
Incapable of saving data to the
internal memory.
● Check the number of files in the memory.
● If an SD card is inserted in the instrument, remove the card.