Velleman VTTEST22 Bedienungsanleitung Seite 7

• Unauthorized persons are not to be allowed to disassemble the
tester.
• Keep fingers away from the metal probe tips when taking
measurements.
• Comply with all safety codes. Use approved personal protective
equipment when working near live electrical circuits.
• Use caution on live circuits. Voltages above 30V AC RMS, 42V AC
peak, or 60V DC pose a shock hazard.
• Do not use if the instrument or test leads appear damaged.
• Measure known voltage with the tester to verify that the tester is
working properly. If the tester is working abnormally, stop using
it immediately. A protective device may be damaged. If there is
any doubt, please have the tester inspected by a qualified
technician.
• Do not use the tester in wet or damp environments or during
electrical storms.
• Do not use the tester near explosive vapors, dust or gasses.
• Do not use the tester if it operates incorrectly. Protection may be
compromised.
• Do not apply voltage that exceeds the tester's maximum rated
input limits.
• Never use the meter with CAT III installations when measuring
voltages that might exceed the safety margin of 400 V above
earth ground.
6. General Description
Refer to the illustration on page 2 of this manual:
1. L2- test probe with removable covers
2. L1 + test probe with removable covers
3. LED voltage indication display
4. Protection ring
7. Overvoltage/Installation Category
Voltage testers are categorized depending on the risk and severity of
transient overvoltage that might occur at the point of test. Transients are
short-lived bursts of energy induced in a system, e.g. caused by lightning
strike on a power line.
V. 01 – 09/10/2023
VTTEST22
7 ©Velleman Group nv