Hioki 3155-01, Instruction Manual

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6.5 Low Resistance Measurement Mode (for IEC/TR 60990)
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SOURCE
SENSE
When not in use During measurement
NOTE
Black 9287 CLIP-TYPE LEAD
Equipment to
be measured
Red 9287 CLIP-TYPE LEAD
CAUTION
・ Do not make measurements if the power cord of the equipment to be
measured is plugged into the auxiliary power outlet of the 3155.
・ Do not touch the equipment to be measured until measurement is complete.
As shown in the figure, the 9461 PIN-TYPE
LEAD has a SENSE sheathed by the
SOURCE. When touched to the equipment
to be measured, both the SENSE and the
SOURCE must be in contact with the
equipment to be measured.
(2) When using the 9287 CLIP-TYPE LEADS
The 9287 CLIP-TYPE LEADS are connected as shown in the figure. Connect
to all four terminals.
Do not connect anything to the auxiliary power outlet of the 3155.
Touch the clip-type leads between the protective earth terminal or earth
contact and the part required to be earthed.
Allowable value: 100 m
Ω
(3) When using 3157 AC GROUNDING HiTESTER
When measuring in low resistance measurement mode using optional 3157 AC
GROUNDING HiTESTER, using the RS-232C interface enable the 3155 to
control the 3157. For usage, connection and communication settings for the
3157, see 3157/3157-01 AC GROUNDING HiTESTER Instruction Manual and
9593-02 RS-232C INTERFACE Instruction Manual.
1. Leave power OFF for both 3155 and 3157 while connecting each RS-232C
connector with the RS-232C cable. For connection with the RS-232C
connector, see Section 8.4, "Connecting Method."
2. Turn the power ON for both 3155 and 3157. Connect 3157 with equipment
to be measured. The 3155 allowable value and measuring points apply to
3157.