Velleman DVM851 - Manual (Page 4)

DVM851
01.08.2012 4
Avoid cold, heat and large temperature fluctuations. When the unit is moved from a cold t
a warm location, leave it switched off until it has reached room temperature. This to avoid
condensation and measuring errors.
Protect this device from shocks and abuse. Avoid brute force when operating.
Pollution degree 2-device. For indoor use only. Keep this device away from rain, moisture,
splashing and dripping liquids. Not for industrial use. Refer to §8
Keep the device away from children and unauthorised users.
Risk of electric shock during operation. Be very careful when measuring live circuits.
There are no user-serviceable parts inside the device.
Refer to an authorized dealer for service and/or spare parts.
This is an installation category CAT II measuring instrument. Never
equipment in a CAT III or CAT IV environment. Refer to §7 Overvoltage/installation
category.
Read this addendum and the manual thoroughly. Familiarise yourself with the functions of
the device before actually using it.
All modifications of the device are forbidden for safety reasons. Damage caused by user
modifications to the device is not covered by the warranty.
Only use the device for its intended purpose. Using the device in an unauthorized way will
void the warranty. Damage caused by disregard of certain guidelines
covered by the warranty and the dealer will not accept responsibility for any ensuing
defects or problems.
4. Maintenance
There are no user-serviceable parts inside the device.
Refer to an authorized dealer for service and/or spare parts.
•
Before performing any maintenance activities, disconnect the test leads from the jacks
•
For instructions on replacing battery or fuse, refer to §11 battery and fuse replacement
• Do not apply abrasives or solvents to the meter. Use a damp cloth and mild detergent for cleaning
purposes.
5. During use
Risk of electric shock during operation. Be very careful when measuring live circuits.
•
Never exceed the limit value for protection. This limit value is listed separately in the specifications for
each range of measurement.
•
Do not touch unused terminals when the meter is linked to a circuit which is being tested.
•
Never use the meter with category II installations when measuring voltages that might exceed the
safety margin of 600V above earth ground.
•
Set the range selector at its highest position if the intensity of the charge to be measured is unknown
beforehand.
•
Disconnect the test leads from the tested circuit before rotating the range selector in order to change
functions.
•
When carrying out measurements on a TV set or switching power circuits, always remember that the
meter may be damaged by any high amplitude voltage pulses at test points.
•
Always be careful when working with voltages above 60Vdc or 30Vac rms. Keep your fingers behind the
probe barriers at all times during measurement.
•
Never perform resistance, diode or continuity measurements on live circuits. Make sure all capacitors in
the circuit are depleted.
©Velleman nv
Avoid cold, heat and large temperature fluctuations. When the unit is moved from a cold to
a warm location, leave it switched off until it has reached room temperature. This to avoid
. Avoid brute force when operating.
only. Keep this device away from rain, moisture,
§8 Pollution degree.
l when measuring live circuits.
This is an installation category CAT II measuring instrument. Never use this
Overvoltage/installation
Read this addendum and the manual thoroughly. Familiarise yourself with the functions of
ty reasons. Damage caused by user
Only use the device for its intended purpose. Using the device in an unauthorized way will
void the warranty. Damage caused by disregard of certain guidelines in this manual is not
covered by the warranty and the dealer will not accept responsibility for any ensuing
the jacks.
§11 battery and fuse replacement.
mild detergent for cleaning
Be very careful when measuring live circuits.
Never exceed the limit value for protection. This limit value is listed separately in the specifications for
Do not touch unused terminals when the meter is linked to a circuit which is being tested.
Never use the meter with category II installations when measuring voltages that might exceed the
range selector at its highest position if the intensity of the charge to be measured is unknown
Disconnect the test leads from the tested circuit before rotating the range selector in order to change
n a TV set or switching power circuits, always remember that the
Always be careful when working with voltages above 60Vdc or 30Vac rms. Keep your fingers behind the
Make sure all capacitors in