Maintenance; Specifications - Velleman DVM52IT Handbuch

Earth ground
Low battery

3. Maintenance

• Do not remove the back cover while a voltage is being applied. Only a qualified technician should handle repairs.
• Always disconnect the test leads from all current sources before opening the meter.
• Always place the function and range switches in the OFF position when the device is not in use.
• Remove the batteries to keep them from leaking if the device is to be stored for a prolonged period of time.
• Use a damp cloth and a mild detergent to clean the device. Never apply abrasives or solvents to the meter
4. Description
• This digital insulation tester is equipped with two alarm functions. A humming sound is produced every two
seconds to prevent damage from improper operation when the function or range switch is in the wrong position.
• Press the test button and the alarm system will produce a humming sound every two seconds. The high voltage
output indicator will flash red, warning the operator of the risk of electroshocks because of the high output voltage.
• The device is protected against overload and a low-battery indication is provided.
• The device also has a data-hold function.
• Two rotary switches are used to select the functions and ranges.
• The DVM52IT has a test button that can be locked. Releasing the test button automatically discharges the
capacitance of the device.
1. High voltage output indicator
2. LCD display
3. Front panel
4. Test button
5. Data-hold switch
6. Function switch
7. Range switch
8. HIGH jack
9. LOW jack
10. Battery cover
11. Case

5. Specifications

Max. accuracy is achieved during a one-year period after calibration. Ideal circumstances require a temperature of 18
to 28°C (64 to 82°F) and a max. relative humidity of 75%.
DVM52IT
General
Front & Back Panel
2
AC (alternating current)
DC (direct current)
Continuity buzzer
VELLEMAN