Cleaning And Maintenance; Technical Specifications - Velleman DVM760 Bedienungsanleitung

7. Cleaning and Maintenance

1. Do not attempt to adjust or repair the meter by removing the rear case while voltage is being applied. Only a
technician who fully understands danger involved should carry out such actions.
2. Before opening the battery cover or case of the meter, always disconnect the test leads from all tested circuits.
3. To avoid wrong reading causing electric shocks, change the battery when the meter displays
4. To ensure fire protection, replace the fuse only with the specified voltage and current ratings: F500mA / 250V.
5. Do not use abrasives or solvents on the meter. Use a damp cloth and mild detergent only.
6. Always set the ON/OFF button to OFF when the meter is not in use.
7. If the meter is to be stored for a long period of time, the batteries should be removed to prevent damage.
BATTERY REPLACEMENT
Disconnect the test leads from the circuit before opening the housing of the meter.
• Change the battery when the meter displays
• Loosen the two screws at the back using an appropriate screwdriver and remove the battery cover.
• Replace the battery with a fresh one and close the battery cover.
FUSE REPLACEMENT
Disconnect the test leads from the circuit before opening the housing of the meter.
• The fuse rarely needs to be replaced.
• Loosen the two screws at the back using an appropriate screwdriver and remove the cover.
• Replace the fuse with a new fuse (F2A/250V). Close the housing.
TEST LEADS REPLACEMENT
Replace the leads with leads of the same specifications (1 000V / 10A). Contact your dealer for more info.

8. Technical Specifications

Accuracy is specified for a period of 1 year after calibration and at 18°C to 28°C (64°F to 82°F) with relative humidity
to 75%. All values measured at an ambient temperature of 23±5°C and with a relative humidity of <75%.
Fuse
Operating Altitude
Display
Max. Display
Polarity Indication
Overrange Indication
Sampling Time
Low Battery Indication
Auto Power Off Time
Power Supply
Operating Temperature
Storage Temperature
Dimensions
Weight
DVM760
WARNING
.
WARNING
WARNING
F2A/250V
2 000m (7 000') max.
44mm LCD
1 999 (3 )
½
"-" indicates negative polarity
"1" displayed
± 0.4s
displayed
± 15 min
9V battery (incl.)
0°C ~ 40°C (32°F ~ 104°F)
-10°C ~ 50°C (10°F ~ 122°F)
195 x 100 x 35mm
± 415g (battery incl.)
8
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VELLEMAN