INSULATION
It has three insulation test Voltages. 250, 500 and 1000V, all of theses are
capable of giving more than 1mA at their nominal voltages.
250V Key to select 250Vdc insulation test voltage.
500V Key to select 500Vdc insulation test voltage.
1000V key to select 1000Vdc insulation test voltage.
250V range can measure from 2 K ohms up to 2G ohms
500V range can measure from 4 K ohms up to 4G ohms
1000V range can measure from 8 K ohms up to 8G ohms
On some models it automatically calculates the PI and DAR and has an
automatic timer.
CONTINUITY
The continuity test has an open circuit voltage of e5Vdc regulated.
The Short Circuit Current of the continuity circuit is about 220mA.
The Continuity test can measure from 10 milli- ohm (0.01) up to 2Kohms.
The accuracy is better than 1% of reading from 1 ohms to 200 ohms, plus
minus one digit.
Below 1 ohms, it's better than 5% of readings plus minus 3digits.
Above 200 ohms, up to 1999 ohms, it's better than 3% of readings plus
minus 3 digits.
The Continuity has an auto-nulling facility which is saved into non volatile
memories, so you only need to null the leads of fuse again if they are
changed.
AUTO-OFF
They have an auto-off feature and the power automatically turn
off after 5 minutes of inactivity.
EnerSave
The battery life can be saved when the user make spot check.
To make a spot check, the user only press the test button for less than 3
seconds, or use the Quick Test key.
If the user press the test key for more than 3 seconds, the tester make a long
test (timer enabled up to 10 minutes for PI test ).
Any test can be stopped at any time.
SAFE VOLTMETER DETECTION
On any of the tests, if the user connect the leads to a voltage, prior to starting
the test, te tester will detect the voltage and automatically turn the Voltmeter
ON as well as an alarm. All other test facilities are disabled when this happen.
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