Safety Instructions

All instructions must be read and observed. The safeguards integrated into the voltage tester may be compromised if the voltage tester is not used in accordance with these instructions. STORE THESE INSTRUCTIONS IN A SAFE PLACE.

• Do not perform any measurements on electric circuits with voltages exceeding 1000 V. You may use the voltage tester only within the stated nominal voltage range and in electrical installations of up to 1000  V  AC/DC.

• Do not use the voltage tester if it looks damaged or it is not working properly. Test the test tips before using on cracks or breakages.

• Take extra care when working with voltages over 30 V AC or 60 V DC! Even at these voltages, contact with live cables can cause life-threatening electric shocks.

• The voltages marked on the voltage tester are nominal voltages. Use the voltage tester only on installations with the specified nominal voltage.

• Do not use the different signals of the voltage tester (including the ELV limit indication) for measuring purposes.

• Check the state of the batteries before use and replace it if necessary.

• Check the voltage tester shortly before and after use by using the self test. Do not use the voltage tester, if the indication of one or more steps fails, or if no functioning is indicated.

• Determine whether the audio signals of the voltage tester are perceptible, before you use it at locations with a high background noise level.

• Do not use the voltage tester if the battery compartment cover is open.

• Depending on the internal impedance of the voltage tester there will be a different capability of indicating the presence or absence of operating voltage in case of the presence of interference voltage.
  A voltage tester of relatively low internal impedance, compared to the reference value of 100 kΩ, will not indicate all interference voltages having an original voltage value above the ELV level. When in contact with the parts to be tested, the voltage tester may discharge temporarily the interference voltage to a level below the ELV, but it will be back to the original value when the voltage detector is removed.
  When the indication “voltage present” does not appear, it is highly recommended installing earthing equipment before work.
  A voltage tester of relatively high internal impedance, compared to the reference value of 100 kΩ, may not permit to clearly indicate the absence of operating voltage in case of presence of interference voltage.
  When the indication “voltage present” appears on a part that is expected to be disconnected of the installation, it is highly recommended confirming by another means (e.g. use of an adequate voltage tester, visual check of the disconnecting point of the electric circuit, etc.) that there is no operating voltage on the part to be tested and to conclude that the voltage indicated by the voltage tester is an interference voltage.
  A voltage tester declaring two values of internal impedance has passed a performance test of managing interference voltages and is (within technical limits) able to distinguish operating voltage from interference voltage and has a means to directly or indirectly indicate which type of voltage is present.

• The voltage tester must only be used by qualified personnel in accordance with safe working practices.

• Only have the voltage tester repaired by qualified personnel using only original spare parts. This will ensure that the safety of the voltage tester is maintained.

• Non authorised persons must not dismantle the voltage tester.

• Do not use the voltage tester in explosive atmospheres which contain flammable liquids, gases or dust. Sparks may be produced inside the voltage tester, which can ignite dust or fumes.

• The voltage tester cannot detect a voltage in DC circuits or in shielded cables.

• Do not subject the voltage tester to extreme temperatures or variations in temperature. As an example, do not leave it in vehicles for longer periods. In case of large variations in temperature, allow the voltage tester to adjust to the ambient temperature before putting it into operation. The precision of the voltage tester may be compromised if exposed to extreme temperatures or fluctuations in temperature.

• Only use the voltage tester in the specified temperature and humidity ranges.