Niigata seiki CJU BKD Series Instruction Manual

CIRCUMFERENCE MEASURING TAPE
Circumference / Diameter
Precision Meas. Instrument
(CIRCO METER) KAIDAN
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
※ Model CJU-950BKD shown.
① Tape
② Reader
① Tape .................................
Goes around the object to be measured. Contains diameter and circumference Main
Scales.
② Reader ..............................
Contains diameter and circumference Vernier Scales. For reading instructions,
please refer to section below.
③ Diameter Main Scale ............
0.5mm Diameter Scale.
④ Diameter Vernier Scale .........
0.05mm Diameter Scale.
⑤ Circumference Main Scale ......
1mm Circumference Scale.
⑥ Circumference Vernier Scale ...
0.1mm Circumference Scale.
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.
W A RNI NG :
Indicates risk of personal injury or property damage if not followed.
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.
CJU-****BKD
Model
INSTRUCTION MANUAL
No.
<Reader Scales>
③ Diameter Main ④ Diameter Vernier
0 0.5 1.0
270 280 290
840 850 860 870 880 890 900 910
0 0.5 1.0
⑤ Circum. Main ⑥ Circum. Vernier
Denotes a prohibition – Denotes a requirement –
You MUST NOT do. You MUST do.
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.
HOW TO USE
① Place the Tape around the surface to be measured.
② Pass the end of the Tape through the Reader as shown below.
Workpiece
Tape
Tape
Reader
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.
Workpiece
Pull
Keep Tape straight
Reader
Tape
④ Read the diameter or circumference measurement.
Reading The Scale
Please Note
● 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.
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.
SPECIFICATIONS
CJU-950BKD CJU-2200BKD
Model No.
φ20 〜 300 φ300 〜 700
（mm）
Meas. Range
D i a m -
m e t e r
（mm）
Resolution
60 〜 950 940 〜 2200
（mm）
Meas. Range
Circum-
ference
（mm）
Resolution
± 0.20
（mm）
Accuracy of Length
50 82
（g）
Mass
Stainless Steel
Material
READING THE SCALE
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.
Measurement = Main Scale reading + Vernier Scale reading
●Diameter Measurement Example
① Diam. Main Scale ＝271.5mm
② Diam. Vernier Scale aligns ＝0.35mm
271.85mm
③ Measurement ＝271.5＋0.35＝
②
Vernier Scale
0
（0.05mm）
Main Scale
（0.5mm）
270
①
●Circumference Measurement Example
① Circum. Main Scale＝853mm
② Circum. Vernier Scale aligns＝0.6mm
853.6mm
③ Measurement = 853＋0.6＝
①
840 850 860
Vernier Scale
（1mm）
Main Scale
0 0.5
（0.1mm）
②
NOTE: When using model CJU-950BKD
When measuring workpieces with a diameter of φ180mm or less,
there will be gap between the Reader and the Tape, causing the
reading to be slightly larger than th e actual measurem
【Diameter Measurements】
Workpiece diameter
φ20〜60mm ：
●
≦ φ180mm
φ60〜80mm ：
●
Gap φ80〜180mm：
●
Reading oversize amount
【Circumference Measurements】
60〜188mm ：
Tape ●
188〜251mm：
●
251〜565mm：
●
Reader
Reading oversize amount
For small diameter workpieces, account for the error
when taking a measurement.
CJU-3460BKD CJU-4720BKD
φ700 〜 1100 φ1100 〜 1500
0.05
2190 〜 3460 3450 〜 4720
0.1
± 0.25 ± 0.30
Niigata seiki Co., Ltd.
114 150
5-3-14, Tsukanome, Sanjo, Niigata, Japan, 955-0055
Tel. : +81-256-33-5522 Fax. : +81-256-33-5518
MAIL intl.sales@niigataseiki.co.jp
URL http://www.niigataseiki.co.jp
0.5 1.0
280
870 880 890
1.0
ent.
0.5mm
~
0.2mm
~
0.15mm
~
1.6mm
~
0.6mm
~
0.5mm
~