Neilsen CT2378 User manual

6" /150MM ELECTRONIC DIGITAL CALIPER
CT2378
INSTRUCTION MANUAL
IMPORTANT:
These instructions accompanying the product are the original instructions. This
document is part of the product, keep it for the life of the product passing it on to
any subsequent holder of the product. Read all these instructions before
assembling, operating or maintaining this product.
Cannon Tools Limited
Address: 20 Station Road, Rowley Regis, West Midlands, B65 0JU.U.K.

EC DECLARATION OF CONFORMITY
We CANNON TOOLS LTD
20 Station road, Rowley Regis, West Midlands,B65 0JU.U.K.
Declare that the following machine complies with the appropriate basic safety
and health requirements of the EC Directive based on its design and type, as
brought into circulation by us.
In case of alteration of the machine, not agreed upon by us, this declaration will
lose its validity.
Product description: 6"/150MM ELECTRONIC DIGITAL CALIPER
Model: CT2378
Applicable EC Directives:
EC Directive of Electromagnetic Compatibility 2014/30/EU
Harmonized standards
EN 61326-1:2013
20 Station Road, Rowley Regis, West Midlands, B65 0JU.U.K.
Mr. Gurcharan Tony Singh Sanghera
Managing Director
CANNON TOOLS LTD
2020-11-20

1. SPECIFICATION
Resolution : 0.01mm or 0.0005”
Maximum measuring speed: 1.5m/sec or 60”/sec
Measuring system: Linear capacitive measuring system
Display: LCD display
Battery : 1.5V DC LR44 button battery x 2
Operating temperature: 0
o
C ~ 40
o
C
Storage temperature: -20
o
C ~70
o
C
Influence of humidity: not important within 0 to 80% of relative humidity
2. IMPORTANT SAFETY INFORMATION
1.Clean caliper bar with dry cotton fabrics before using in order to avoid mad
display of caliper caused by humidity.
2.Keep the caliper clean and dry (Liquid can damage the slider).
3.Faces should be cleaned gently with cotton fabrics. Never use petrol, acetone
and other organic solutions.
4.In order to save power, turn off the unit when caliper is going to stay idle for
some time.
5.Never apply any electric pressure on any part of the caliper and never use an
electric pen for the fear of damaging its chip.
6.For other notes please refer to the conventional calipers
7.Accidental wrong display may happen while replacing the battery. Just take out
the battery and then put it in again after more than 30 seconds until the display
returns to normal.

3. TECHNICAL DESCRIPTION
1.Internal Measuring Jaws 2.Conversion Switch
3.Slider Clamp Screw 4.LCD Display
5.Step Measuring Jaws 6.External Measuring Jaws
7.ON/OFF Switch 8.Zero Switch
9.Battery Compartment 10.Thumb Roller
11.SEA & Metric 12.Depth Blade
4. UNPACKING AND CHECKING
Carefully remove the product from the packaging and examine it for any sign of
damage that may have happened during shipping. Lay the contents out and check
them against the parts shown below. If any part is damaged or missing; please
contact the seller and do not attempt to use the product .
○
1
错误
错误
○
4
○
12
○
5
○
6
○
7
○
8
○
9
○
10
○
11

5. USING THE TOOL
● PREPARATIONS:
1.Slider can be removed only after the locking screw is loosened.
2.Wipe clean all the measuring faces and caliper bar. No organic solutions are allowed.
3.Check to see if all the buttons,switches,and LCD display respond well.
● BASIC MEASURING METHODS:
1.Loosen the locking screw.
2.Switch the unit on by pressing “ON/OFF” button, or move caliper slider for auto power on, then
select the unit by pressing “mm/inch” button. (Each time the button is pressed, inch and metric
digits will be displayed alternatively).
3.Apply normal measuring pressure on slider to close the external measuring jaws.Then press
“zero” button to reset the display to zero.
4.Press “ON/OFF” button for power on or the power will auto off when not in use for 5 minutes.
● APPLICATIONS:
1.Comparisons between plug and hole 2.Deviation from reference size A
3.Measuring of bottom thickness 4.Measuring of centre distance 5.Measuring where
between two identical holes display faces opposite

BATTERY REPLACEMENT
Flashing of digits shows a flat battery.Take off the battery cover in the direction
shown by the arrow and replace the battery (positive side facing out).
● BATTERY REPLACEMENT
Take off the battery cover in the direction shown by the arrow and replace the battery (positive
side facing out).
6. TROUBLE SHOOTING
Trouble Cause Remedy
The display can’t count. Circuit accident Put out battery and reset it in after
30sec.
Only display 000.00 or
IN 00.00
Both function buttons
and slider’s signal end
short out.
Remove the cover, put button’s spring in
idea condition
Function buttons non
active
Spring out of shape
caused by violent
pressing buttons
Ditto
Reading error for full
length is
≤0.1mm
Dirt get into sensor. Remove the cover and slider assembly,
jet sensor’s face with clean pressure air
(≤51kg/cm²), clear it with few petrol for
dirt preventing
LCD screen no display 1) Battery hasn’t
good contact.
2) Battery voltage is
under 1.1V
1) Remove the cover.keep good
contact for battery
2) Replace battery
7. DISPOSAL
At the end of the machine's working life, or when it can no longer be repaired,
ensure that it is disposed of according to national regulations.
Contact your local authority for details of collection schemes in your area.
In all circumstances:
Do not dispose of this tool with domestic waste.
Do not incinerate.

8. EXPLANATION OF SYMBOLS
In accordance with essential safety standards of applicable
European directives
First read the instruction manual.
CANNON TOOLS LTD
Add: 20 station road, Rowley Regis, west midlands,B65 0JU.U.K.
Made in China