270
280
290
880
890
900
910
870
860
850
840
0
0.5
④
Diameter Vernier
1.0
0.5
1.0
0
Read the manual and follow the directions.
・
Use of product other than as described in this
manual may cause accident.
Use only for measuring.
・
Use for any purpose other than measuring may
damage or wear the instrument. Improper use may
also cause accident.
Make sure power is turned off to equipment before using.
・
There is risk of electrical shock.
Wear gloves to protect hands during use.
・
Tape edges may cause injury to unprotected hands.
Protect eyes from tape tip during use.
・
Tape is spring steel and may whip off surface.
Use care to prevent injury.
Only use within specified measurement range.
・
Use outside of specified range may cause defor-
mation and damage resulting in poor accuracy.
Handle with Care.
・
Do not subject gauge to excessive shock. Do not
place under heavy objects. Improper handling may
cause damage or poor accuracy.
・
Do not scratch instrument surfaces.
Use and store in location meeting the following conditions:
●
Dry and protected from rain, water, and oils.
●
Protected from direct sunlight.
●
Protected from children and unauthorized users.
・
Use in places contrary to the above may cause
damage to the product or result in accident or injury.
Do not disassemble or modify.
・
Disassembly may damage product or cause accident.
Circumference / Diameter
Precision Meas. Instrument
Thank you for purchasing CIRCUMFERENCE MEASURING TAPE (CIRCO METER) KAIDAN. This product is designed for
measuring the circumference and diameter of large cylindrical parts.
For safe and proper use, please read this instruction manual before use and follow the procedures described.
Please keep manual where it is accessible to user for future reference.
Keep this manual with the instrument if transferred or leased to a third party.
For inquiries about this product, please contact the dealer where purchased, or the address listed on the back page.
■
PARTS ID & FUNCTION
CJU-****BKD
Model
No.
INSTRUCTION MANUAL
SAFETY NOTICES
Please Observe
To prevent harm to yourself or others, and to prevent damage to property,
always follow the procedures marked by the following symbols.
WARNING:
Indicates risk of personal injury or property damage if not followed.
Denotes a prohibition –
You MUST NOT do.
Denotes a requirement –
You MUST do.
①
Tape
※
Model
CJU-950BKD
shown.
<
Reader Scales
>
②
Reader
③
Diameter Main
⑤
Circum. Main
⑥
Circum. Vernier
Goes around the object to be measured. Contains diameter and circumference Main
Scales.
Contains diameter and circumference Vernier Scales. For reading instructions,
please refer to section below.
0.5mm Diameter Scale.
0.05mm Diameter Scale.
1mm Circumference Scale.
0.1mm Circumference Scale.
①
Tape
………
……………………
②
Reader
………
…………………
③
Diameter Main Scale
…
………
④
Diameter Vernier Scale
…
……
⑤
Circumference Main Scale
……
⑥
Circumference Vernier Scale
…
●
●
●
CIRC
UMFERENCE MEASURING TAPE
270
280
880
890
870
860
850
840
0.5
1.0
0
①
Place the Tape around the surface to be measured.
②
Pass the end of the Tape through the Reader as shown below.
③
Hold the Reader secure and pull the Tape tight. Make
sure the Tape is not at an angle, and is in full contact
with the workpiece.
Keep Tape straight
④
Read the diameter or circumference measurement.
●
When taking a reading, make sure the Reader is tight against
the Tape, and read from directly in front of the Scale. Reading
at an angle may cause measurement error.
When reading diameter and circumference, for each reading
hold the Tape in place and take a reading. If attempting to read
both simultaneously, the measurement may not match a
calculated value due to how the Tape is held.
READING THE SCALE
NOTE: When using model
CJU-950BKD
HOW TO USE
AFTER USE CARE
・
STORAGE
●
Using a dry cloth, wipe off any dirt or oils.
Store in a safe place, out of harm's way.
If stored under heavy object, or subject to excessive
forces, the tape may be bent and become inaccurate.
Store in a cool, dry, and dark location.
Avoid direct sunlight or high humidity, and access from
unauthorized users.
The measurement is determined by reading the Main Scale,
and then adding the Vernier Scale reading determined by the
position where the Vernier and Main Scale graduations align.
For small diameter workpieces, account for the error
when taking a measurement.
●
φ
20〜60mm ：
~
0.5mm
●
φ
60〜80mm ：
~
0.2mm
●
φ
80〜180mm：
~
0.15mm
Reading oversize amount
【
Circumference Measurements
】
●
60〜188mm ：
~
1.6mm
●
●
188〜251mm：
~
0.6mm
251〜565mm：
~
0.5mm
Reading oversize amount
●
Circumference Measurement Example
①
Circum. Main Scale
＝
853mm
②
Circum. Vernier Scale aligns
＝
0.6mm
③
Measurement
=
853＋0.6
＝
853.6mm
SPECIFICATIONS
Reading The Scale
Please Note
Tape
Tape
Reader
Tape
Reader
Tape
Reader
Workpiece
When measuring workpieces with a diameter of
φ
180mm or less,
there will be gap between the Reader and the Tape, causing the
e actual measurem
reading to be slightly larger than th
ent.
Workpiece diameter
≦ φ180mm
Workpiece
CJU-950BKD
φ
20 〜 300
60 〜 950
± 0.20
50
（mm）
Resolution
（mm）
（mm）
Resolution
（mm）
Diam-
meter
Circum-
ference
CJU-2200BKD
φ
300 〜 700
940 〜 2200
82
CJU-3460BKD
φ
700 〜 1100
2190 〜 3460
114
CJU-4720BKD
φ
1100 〜 1500
3450 〜 4720
± 0.30
150
Measurement = Main Scale r Vernier Scale reading
①
Main Scale
●
Diameter Measurement Example
①
Diam. Main Scale
＝
271.5mm
②
Diam. Vernier Scale aligns
＝
0.35mm
③
Measurement
＝
271.5＋0.35
＝
271.85mm
（0.5mm）
①
②
Main Scale
Vernier Scale
（1mm）
（0.1mm）
Through
2
1
Insert
Pull
Gap
0.05
0.1
± 0.25
Stainless Steel
Accuracy of Length
（mm）
Mass
（g）
Material
Model No.
Niigata seiki Co., Ltd.
5-3-14, Tsukanome, Sanjo, Niigata, Japan, 955-0055
Tel. : +81-256-33-5522 Fax. : +81-256-33-5518
MAIL [email protected]
URL http://www.niigataseiki.co.jp
②
Vernier Scale
（0.05mm）
0
0.5
1.0
Meas. Range
Meas. Range
【
Diameter Measurements
】
●
(CIRCO
METER
)
KAIDAN
●
●
