（Figure１）
（Figure２）
I385K 1810
（Figure３）
① Prepare a Ring Gauge to use as a reference standard
for setting the zero-point. Insert the Measurement Head
into the Ring Gauge.
②In the direction perpendicular to the Ring Gauge axis,
position the Bore Gauge to measure diameter ⓐ shown in
the cross section (Figure 1). This is the maximum
distance, and the Dial Gauge will show the minimum
reading. The Gauge Head will automatically sit in this
position when inserted.
③In the cross section shown in Figure 2, parallel the Ring
Gauge axis though diameter ⓐ, position the Bore Gauge
to minimize the distance ⓑ. In this position the Dial Gauge
will read the maximum value.
This position is determined by manually moving the gauge
and noting the position where the Pointer shows the
maximum value. (Figure 3)
④The reading obtained at step ③ is the zero-point. Rotate
the bezel of the gauge until the Pointer is at the zero point
of the Gauge Face. (Figure 4)
MEASUREMENT
※Before use, please make sure the Measurement Head is
not loose on the Handle. Tighten as necessary.
Insert the Measurement Head of the Bore Gauge into the
object to be measured. As in step ③ of “Setting the 0-
Point” above, pivot the gauge while checking the pointer
to determine the diameter ⓑ where the indicator will
show the maximum value to determine the measurement
reading.
This measurement will be the difference in diameter
between the part, and the reference Ring Gauge.
●Please note, manufacturer is unable to respond to inquires or provide service
directly. Please contact distributor or place of purchase.
■OPERATION
NOTICE
�
ⓑ
（Figure４）
Bezel
Rotate
Set to Zero
SETTING THE 0-POINT
Niigata Seiki Co., Ltd.
TEL: +81256315670 FAX: +81256397730
MAIL: intl.sales@niigataseiki.co.jp
URL http://www.niigataseiki.co.jp
●This is a precision instrument, handle with care.
●Do not disassemble or modify.
●Keep instrument away from water and oil.
●Use only with supplied Probe Tip and Probe Needle.
●Keep instrument away from direct sunlight and high temperatures such as in a car, or
near a stove or heat source.
●After use, remove dust and cutting chips, and apply rust preventative oil to to Probe
Tip and Probe Needle. When not in use store in supplied storage case.
●This product is for measuring inside diameter; use only as directed. Improper use may
cause accident or injury.
■REPAIRS AND SERVICE
●If Gauge does not operate properly, or if you have any questions, please contact
■distributor or place of purchase.
61522, Tsukanome, Sanjo, Niigata, Japan 9550055
