GREAT BRITAIN
For consumer contact, please visit www.clasohlson.co.uk
and click on customer service.
Digital Vernier Caliper
Art.no 40-7541
Please read the entire instruction manual before using the product and save it
for future reference. We reserve the right for any errors in text or images and
any necessary changes made to technical data. If you have any questions
regarding technical problems please contact Customer Services.
Product description
Care
• Wipe the entire measuring scale with a soft cloth.
Do not use solvents to clean the caliper.
• Keep the caliper dry and clean.
• Always turn the device off when it is not in use.
• Never measure surfaces that are conducting electrical current.
• Do not engrave the caliper with an electric engraver.
This may damage the caliper.
• Changing the battery can cause the digits on the display to flicker.
Remove the battery and wait 30 seconds before replacing it.
Changing the battery
When the display becomes weak the battery needs to be changed.
Undo the upper screw on the back of the caliper to open the battery cover.
The positive terminal (+) should face upward.
Troubleshooting
Problem
Possible cause
Solution
Weak display.
Low battery.
Replace the battery.
Reading does not change
when the slider is moved.
Temporary
electrical fault.
Remove the battery and
replace it after 30 seconds.
Accuracy less than
+/- 0.01 mm.
Dirty sensor.
Wipe the entire measuring
scale with a soft cloth.
Nothing on the display.
1. Low battery.
2. Battery inserted
incorrectly.
1. Replace the battery.
2. Turn battery over.
Disposal
Follow local ordinances when disposing of this product. If you are unsure of
how to dispose of this product, please contact your local authority.
Specifications
Measuring range
0-150 mm, 0-6
″
Resolution
0.01 mm, 0.0005
″
Accuracy
± 0.02 mm, 0.001
″
(<100 mm)*
± 0.03 mm, 0.001
″
(100 mm-150 mm)*
Repeatability
0.01 mm, 0.0005
″
Max measuring speed
1.5 m/s, 60
″
/s.
Measuring system
Linear capacitive measuring system
Display
LCD
Power supply
SR44, 1.5 V button cell battery
Operating temperature
5 °C – 40 °C, 41 – 104 °F
*Accuracy is decreased markedly if humidity is above 80 % RH
(relative humidity).
1. Internal measuring jaws
2. Step measuring faces
3. LCD display
4. Locking screw
5. Upper battery cover screw
6. External measuring jaws
7. [MODE] selector for metric reading/
imperial reading in decimal form/
imperial reading in fractions
8. [ON/OFF] on/off switch
9. [ZERO] (reset) switch
10. Thumb wheel
11. Scale for metric reading/
imperial reading
12. Measuring scale
13. Depth/height measuring bar
Use
1 Preparations
• The slider can only be moved once the locking screw (4) has been undone.
• Clean the measuring scale and all measuring surfaces.
• Make sure that the display and all function buttons are in working order.
2 Measuring
1. Loosen the locking screw (4).
2. Turn the caliper by pressing [ON/OFF] (8). (The display comes on automa-
tically when the slider is moved even if you do not press [ON/OFF].)
3. Press [MODE] (7) to select metric or imperial display.
4. Carry out the measurement.
5. To zero the caliper, close the jaws completely and then press [ZERO] (9).
6. Press [ON/OFF] (8) to turn off the device after a completed measurement.
A. External measurement
B. Internal measurement
C. Depth/height measurement
D. Step measurement
E. Differential measurement
12
13
5
3
2
4
10
8
1
6
11
7
9
25.4 mm
25.4 mm
25.4 mm
25.4 mm
