Hioki BT3554-50, Instruction Manual, Page: 64 / 188

50
Adjusting the Zero Point (Zero Adjustment)
3.4 Adjusting the Zero Point
(Zero Adjustment)
When the zero adjustment function executed, the instrument will
regard the measured values (correction values) as zero to display
subsequent measurement results.
Only if an accessory or optional test lead is used, the instrument
can meet the accuracy specifications even without executing the
zero adjustment.
However, execute the zero adjustment in the following cases:
• When you wish to increase measurement accuracy
For the 3 m
Ω
range, the accuracy specifications differ depending
on whether zero adjustment has been performed.
See “9.3 Accuracy Specifications” (p. 123).
• When using a test lead, including Hioki product, that is not an
accessory or option of the instrument or whose length has been
extended
IMPORTANT
Use only the Hioki-specified test lead. Hioki does not guarantee
the accuracy and proper operation if any test lead not specified by
the company is used.
• Performing zero adjustment adjusts the zero points of all
ranges.
• Even after the instrument has been turned off, the correction
values will be retained and with the zero adjustment function
remaining enabled.
• After replacing the test lead, always perform zero adjustment
prior to measurement.
• Always use the included or optional zero-adjustment board
when performing zero adjustment.
• Keep the test lead short-circuited during zero adjustment.
• Keep the tips of the test lead away from any metal components.
HIOKI BT3554F961-00 HIOKI BT3554F961-00