Velleman DCA150 - Manual (Page 2)

DCA150_v2 2 VELLEMAN
DCA150 – DIGITAL CALIPER
1. Introduction
To all residents of the European Union
Important environmental information about this product
This symbol on the device or the package indicates that disposal of the device after its lifecycle could harm the
environment. Do not dispose of the unit (or batteries) as unsorted municipal waste; it should be taken to a specialized
company for recycling. This device should be returned to your distributor or to a local recycling service. Respect the
local environmental rules.
If in doubt, contact your local waste disposal authorities.
Thank you for buying this DCA150! Read this manual carefully before bringing the device into service.
2. Specifications & Functions
Measuring range Resolution & Repeatability Accuracy
0-200mm / 0-8"
0.01mm / 0.0005"
0.03mm / 0.001"
200-300mm / 8-12" 0.04mm / 0.0015"
300-500mm / 12-20" 0.05mm / 0.002"
Maximum measuring speed: 1.5m/sec or 60"/sec
Display: LCD
Battery: one 1.5V silver oxide battery for one year of continuous use.
Low-battery warning by flashing display.
Operating temperature: 0°C ∼ +40°C
Storage temperature: -20°C ∼ +70°C
Operating humidity: 0 to 80%
1. OFF/ON key
2. Zero setting (resets any value to zero for reference)
3. Battery cover
4. METRIC / INCH change over (true conversion)
5. LCD display, features minus sign "-", character in 4.7mm / 0.185"
height for 5 digits, "mm" indication for millimetres and small digit "5"
and "IN" indication for inch measuring unit.
3. Maintenance Instructions
1. Keep the device clean and prevent liquids from entering the electronic part to avoid damaged electronics.
2. Clean the device with petrol, lubricate the body with some clock oil. Acetone and alcohol should not be used.
4. Troubleshooting
Problem Cause Solution
The 5 digits change every second Battery voltage is under 1.45V Replace battery.
Displayed value doesn't change. Circuitry malfunction Remove the battery and put it back after 30 seconds.
LCD shows 000.00mm / 00.000in One of the keys is short circuited Remove the cover & adjust key spring position
Function keys do not work Key spring is bent or deformed Remove the cover & adjust key spring position
Caliper does not measure accurately Sensor is dirty Remove the cover and slider assembly, clean the
sensor with pressure air (
≤51kg/cm²), and clean it
with a little petrol for dirt prevention.
No display on LCD screen 1) No battery contact.
2) Battery voltage is under 1.1V. 1) Restore battery contact.
2) Replace battery
5. Applications (see p. 8)