Cleaning And Maintenance; Technical Specifications - Velleman DVM1100 Bedienungsanleitung

7. Turn off the power of the measured circuit and discharge all the high-voltage capacitors. Remove the test
leads and recover the measured circuit.

5. Cleaning and Maintenance

Do not attempt to repair or service your multimeter unless you are qualified to do so and have the relevant
calibration, performance test and service information.
a. General Maintenance
To avoid electrical shock and/or damage to the instrument, do not get water inside the case.
Remove the test leads and any input signals before opening the case.
Wipe the device regularly with a moist, lint-free cloth. Do not use alcohol or solvents.
Clean the terminals:
• Turn the meter off and remove all test leads.
• Shake out any dirt that may be in the terminals.
• Soak a new cotton bud with a cleaning and oiling agent and clean the terminal.
b. Fuse Replacement
Before fuse replacement, disconnect all test leads and/or ant connectors from any circuit
under test. To avoid damage to the instrument, replace the fuse only with specified ratings.
• Set the rotary switch to the OFF position.
• Disconnect all test leads and/or any connectors from the terminals.
• Open the battery compartment using an appropriate screwdriver.
• Remove the fuse by sliding it out of its bracket.
• Install a replacement fuse (F10A/600V, Ø 6.3 x 32mm and F500mA/250V, Ø 5 x 20mm).
• Close the battery compartment.
c. Battery Replacement
To avoid false readings, which could lead to possible electric shocks or personal injury,
replace the battery as soon as the battery indicator
disconnect all test leads and/or ant connectors from any circuit under test.
• Set the rotary switch to the OFF position.
• Disconnect all test leads and/or any connectors from the terminals.
• Open the battery compartment using an appropriate screwdriver.
• Remove the battery.
• Install a replacement battery (6F22).
• Close the battery compartment.

6. Technical Specifications

Accuracy is specified for one year after calibration at operating temperatures of 18°C ~ 28°C with a relative humidity
at 0% ~ 75%. Accuracy specifications take the form of ± (% of rdg + number of least significant digits).
Environmental Conditions
Pollution Degree
Altitude
Operating Temperature
Storage Temperature
Temperature Coefficient
Max. Voltage between Terminals and Earth 1000VAC RMS or 1000VDC
DVM1100
1000V CAT. II and 600V CAT. III
2
< 2000m
0°C~40°C or 32°F~122°F (< 80% RH, < 10°C)
-10°C~60°C or 14°F~140°F (< 70% RH, battery removed)
0.1x / C° (< 18°C or > 28°C)
- 9 -
appears. Before battery replacement,
VELLEMAN