Shutdown; Resistance Measurement - ADInstruments AD6412 Manual

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After auto-inspection is completed, AD6412 shows "OL
, as shown in Figure 5. Due to that no-load resistance "OL" has exceeded the alarm
critical value of resistance.

2. Shutdown

After the Meter is switched on, press POWER key to shut it down.
In five minutes after the Meter started up, the LCD screen entered flashing state, and
would automatically shut down after the flashing state is sustained for 30 seconds to
reduce battery consumption. Press POWER key in flashing state may delay the shutdown
of the Meter, and keep it working.
In HOLD state, it is required to first press HOLD key to quit from the HOLD state, then
press POWER key to shut it down.
In HOLD state, AD6412 is required to press SET key or POWER key to quit HOLD state;
then press POWER key to shut down.
In a state of alarm setting value, AD6412 needs first to press POWER key or SET key for
3 sec to quit from the state, then press POWER key to shut down.

3. Resistance Measurement

After the booting auto-inspection is completed, it shows "OL " and will be able to proceed with
resistance measurement. At this point, press the trigger and open the jaws, clamp the target loop,
reading to get the resistance value.
If the user thinks it necessary, the test can be done with the ring as shown in the following
figure. Its show value should be consistent with the normal value on the test ring (5.1 ).
The normal value on the test ringis the
value at a temperature of 20 ° C.
It is normal to find the difference of
numerical 1 word between the show
value and the nominal value,
For instance: If the nominal value of
test ring is 5.1 , it would be normal
showing 5.0 or 5.2 .
It shows "OL ", indicating that the measured resistance value exceeded the upper limit of
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Manual de usuario AD6412
AD Instruments
", and also flashes the symbol
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