Beta 1760/OHM Mode D'emploi page 75

4 Before measurement check whether the voltage range of the tested device is applicable to the
requirement of insulation measurement voltage. Please ensure there are no parts that will be
damaged by insulation measurement voltage. Many parts will be damaged over 1000V (and
other ranges). For example, power factor capacitor, low voltage insulation cable, electronic
dimmer and common electronic parts are all subject to damage over 1000V (and other ranges).
Turn to corresponding voltage range after confirming the desired voltage.
5 Connect two measurement leads to tested device; Push down and hold the "TEST" button /
or press the "LOCK" keystroke first and then the "TEST" button. If the tested device is an
electrophorus and its voltage (AC/DC) is over 30V, it will not work and no high-voltage testing
occurs. Simultaneously, ">30V" appears on the LCD display, the symbol " " flashes, and the
buzzer signals steadily. If the tested device is not an electrophorus or its voltage is lower than
30V, it will switch to regular testing process, setting the high voltage. On the primary display,
the insulation resistance in MΩ is indicated in-phase with analogue bar; on the secondary
display, the tested insulation voltage in V (DC) is indicated, the symbol "
buzzer signals steadily. By releasing the "TEST" button or pushing down the "TEST" button
in the "LOCK " state, the user can exit the "LOCK" state and shut off the high-voltage while
the resistance values is indicated on the primary display will be maintained, and the secondary
display will still be in the monitoring mode for the insulation voltage of the tested device.
Measurement is completed. Subsequently, both ends of the wire insulation voltage, measured
made by means of internal electronic switch, release voltage.
6 By turning the function switch you can exit testing mode automatically during the process.
7 absorbance & Polarization measurement mode
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" flashes and the