Hioki DSM-8542, Instruction Manual, Page: 12 / 140

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1.3 Grounding
Be certain to ground the grounding terminal located on the rear of the meter or the
grounding pin of the power cable to prevent an accident such as an electrical shock.
The round pin of the 3P plug attached to the power cable is the grounding pin. Plug the
cable to a plug socket that has a grounding device.
When using the 3P-2P conversion adapter, be certain to ground the grounding lead wire
from the adapter or the grounding terminal located on the rear of the meter.
[Warning]
Be certain to ground the grounding pin of the power cable to prevent an accident.
If the grounding pin of the power cable cannot be grounded, be certain to ground the
grounding terminal located on the rear of the meter.
1.4 Measuring Cable
1) Low-noise cable
This meter measures a current at a high sensitivity and measured values sometimes
are not stable due to noise generated by the measuring cable.
Use low-noise shielded-conductor cable meeting the specification of HIOKI.
2) Limited length of measuring cable
Depending on the length of the measuring cable, adjustment of the meter is
necessary to correct open values in the contact check function.
The meter was adjusted for use of the measuring cable in the length of 1m during
preshipment inspection of the meter by HIOKI. Please contact our distributor or
sales office near your location if other cable length is intended to be used.
1.5 Warming Up Time
Warm up the meter more than 30 minutes before operating the meter to obtain the
specified performance.
1.6 Memory Initializing
• Memory initializing
1) Press the [F3] key.
If the screen is displayed, the key is in the SAVE Function mode. The key can
perform its function even if the key is not displayed.
2) Press the [MAN. T] (-) key.
3) Press the [ENTER] key.
This completes memory initialization.
The memory can be initialized by this method anytime as long as the meter is shut
down. However, memory initialization also automatically clears data saved by the
save function.
Memory initialization will set the values that were set during preshipment inspection
at the HIOKI factory shown in Table 7.9 “Settings by Factory Preshipment Inspection
and Values Initialized by Message.”