INSTRUCTION MANUALDIAL BORE GAUGE 4-6mm

Model No. : CDI-6

Thank you for purchasing the Dial Bore Gauge.
Please read this manual thoroughly before use for proper operation.

■PART IDENTIFICATION■SPECIFICATIONS ＊：Including supplied Dial Indicator.
Model No.

Bezel

Dial Indicator

Pointer(0.01mm)

CDI-6

Measuring Range

（mm）

4〜6

Graduation

(mm）

0.01

＊ Wide Range Accuracy(µm）

10＊(µm)5(µm)

3Adjacent Error＊ Repeat Accuracy

Indicator Face

Single Probe Measuring Range (mm)0.6(g)

165

WeightRevolution Counter(1mm)

ACCESSORIES●4Probe Tips

for following Range･････4.0 〜 4.6mm
4.5 〜 5.1mm
5.0 〜 5.6mm
5.5 〜 6.1mm

Clamp Screw
CapGrip●Probe Needle････････････1 (Note: At time of purchase

Probe Needle is inserted into
Measurement Head)●Spanner･･･････････････････1

Probe Tip

Measurement Head

Length below grip
- 40mmProbe Needle

Probe Tips×4

Probe Needle

Spanner■ASSEMBLY①Loosen the Clamp Screw and insert the Dial Indicator until
the Pointer rotates 1/10 turn or more. Secure by tightening theClamp Screw.
1/10 rotationor more

②Insert the Probe Needle into the Probe Tip and screw onto
the end of the gauge body. Using Spanner, tighten to secure.
※Change Probe Tip as required to match the required
measurement range.

InsertProbe Needle

InsertSpanner

Probe Tip

Probe Tip

Clamp Screw

Attach■OPERATION※Before use, please make sure the Probe Tip issecurely fastened to the gauge body. Tighten asnecessary.

�ZERO POINT ADJUSTMENT①Prepare a ring gauge to use as a reference standard
for setting the zero-point. Insert the Measurement
Head into the ring gauge.
②In cross section perpendicular to the axis of the ringgauge, position the gauge along diameter �(Figure:1).
This is the maximum distance, and at this point theDial Indicator will read the minimum value. The Gauge
Head will automatically sit in this position wheninserted.

(Figure: 1)③In cross section parallel to the axis of the ring gaugethrough diameter�, position the indicator to minimize
the distance �(Figure:2). In this position the Dial
Indicator will read the maximum value. This position
must be manually achieved by moving the indicatorand noting the point where the Pointer shows themaximum value. (Figure:3)ⓑ④The reading obtained at step③ is the zero-point.
Rotate the bezel of the gauge until the Pointer is at thezero-point of the Indicator Face. (Figure:4)(Figure: 2)(Figure: 3)

MEASUREMENT
Bezel

Insert the Measurement Head of the Dial Bore Gauge
into the object to be measured. As in step③ of“Zero-Point Adjustment” above, pivot the gauge while
checking the pointer to determine the diameter � wherethe indicator will show the maximum value to determine
the measurement reading.
This reading is the difference between the measured
value and the reference ring gauge.

Set to Zero

Rotate(Figure: 4)

NOTICE● This is a precision instrument, use care not to drop or mishandle.
● Please do not disassemble or modify.
● Keep instrument away from water and oil.
● Use only with provided Probe tip and Probe Needle.
● Keep instrument away from direct sunlight or high temperatures such as in a car, or near astove or heat source.
● Remove dust and cutting chips after use and apply rust preventative oil to Probe Tip andProbe Needle. When not in use store in original 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 orplace of purchase.

Niigata seiki Co., Ltd.

● Please note, manufacturer is unable to respond to inquires or provide service directly. Pleasecontact distributor or place of purchase.

MAIL:intl.sales@niigataseiki.co.jp
URL http://www.niigataseiki.co.jp

6-15-22, Tsukanome, Sanjo, Niigata, Japan, 955-0055
Tel. : +81-256-31-5660 Fax. : +81-256-39-7730

I230-K1504