Hioki 3560 - Voltage Limiter; Zero Clear

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4.3 Advanced Setting
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4
.3.5 Voltage Limiter
Limiter: OFF
Limiter: ON
NOTE
4
.3.6 Zero Clear
The voltage limiter may be set. If set, the voltage applied to the
measured object is limited to a maximum of 20 mVpeak in order to
protect the oxide film on the contact surface of the object.
1. Press the
SHIFT key. "SHIFT" appears
lit on the display.
2. Press the
AUTO (20 mV LIMIT) key.
"LIMIT OFF" appears from the
display, and the limiter is turned off.
3. The above operation toggles the
limiter on or off.
･ The voltage limiter is enabled before shipment. Since measurements may
be unsuccessful if the lead is modified or extended with the voltage
limiter enabled, shorten the measurement lead to reduce resistance or
disable the voltage limiter.
･ For more information on the voltage limiter, see Section 10.6 "IEC 512-2,
JIS C 5402 and JIS C 5441."
･ To shut off the DC current, the SOURCE and SENSE terminals of the
instrument are equipped with capacitors. The voltage limiter will not
work when these capacitors are charged. If you measure an element
having electromotive force, such as a battery, then measure its contact
resistance, you must first short-circuit the measurement lead once to
neutralize the charge in the capacitors.
･ The open-circuit terminal voltage between SENSE
-
Hi and SOURCE
-
Hi
does not guarantee 20 mV. When using 9453 FOUR TERMINAL LEAD,
avoid crossing the red and black leads.
Zero-clear is a function used to return the zero-adjust data to their
default values.
1. Press the
SHIFT key. "SHIFT" appears lit on the display.
2. Press the
0 ADJ (0 CLEAR) key.
3. The zero-adjust data in full resistance and voltage ranges are returned
to their default values. The system returns to measurement mode after
zero-clear is complete.