VONROC LD501DC, Original Instructions Manual, Page: 5 / 24

EN
5
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TECHNICAL SPECIFICATIONS
Model No. LD501DC
Measurement range 0.05m-30m
Measuring Accuracy ± 2mm
Laser type 620 ~ 690 nm
Laser class
II (<mW) acc.
To EN60825-1: 2014;
Single-mode measurement m, ft, in
Continuous-mode measurement m, ft, in
Area measurement
m², ft², in²
(automatic calculation)
Volume measurement
m³, ft³, in³
(automatic calculation)
Laser point Yes
Operating temperature 0~40 °C
Storage temperature -20~65 °C
Laser auto switch off Yes, after 30s
Instrument auto switch off Yes, after 180s
Battery
2x 1.5V type LR03 AAA
(alkaline)
Weight (Without Batteries) 64 g
Dimensions 100 x 40 x 24 mm
* Maximum deviation error or shorter range can occur
when laser exposed to bright sunlight, operated
across very rough or minimal reflective surface, or
used during extreme temperature conditions.
** When measuring within 10 m, measurement
accuracy is ± 2.0 mm; more than 10 m, measurement
accuracy is calculated as follows: ±2.0 mm± 0.05*
(D-10) (D: Measuring Distance, Unit: m).
DESCRIPTION
The numbers in the text refer to the diagrams on
page 2-3.
Fig. A
1. Display
2. Switch on / measure button
3. Function / measurement reference
4. Clear / switch off button
5. Reception lens
6. Laser beam outlet
Fig. B
7. Battery cover
Fig. C
8. Laser on
9. Continuous- / single mode
10. Historical readings
11. Current reading
12. Battery status
13. Hardware error
14. Area / volume
15. Unit
3. ASSEMBLY
Inserting / Replacing the Batteries (Fig. B)
1. Remove the battery compartment cover (7).
2. lnsert batteries with correct polarity according
to battery cover indications.
3. Close the battery compartment cover (7).
4. OPERATION
WARNING! Danger of injury due to defective
components! The product must only be put
into operation if no defects are found.
Ensure that any defective parts are
replaced before the product is used again.
Check the device:
• Make sure all parts are fitted on the machine
firmly.
• Check whether there are any visible defects:
broken parts, cracks, etc.
Operation
• Measurements of metallic or shiny surfaces
provide inaccurate measuring values.
As a repair, such surfaces can be covered with
matt adhesive tape or faint black paint.
• The laser distance meter is not able to take
measurements through transparent surfaces
such as glass.
Switch on and off (Fig. A+C)
Hold down the measure button (2) to switch on the
Equipment. Equipment will always start in the default
reference setting of single measurement mode (9).
Hold down the switch off button (4) to switch off
the equipment.