Safety - Elma Instruments 1000A Bedienungsanleitung

2.0 Safety

Elma 1000A Voltage Testers has been constructed and verified in compliance with the latest safety standards
for voltage testers DIN EN 61243-3, DIN VDE 0682, part 401, EN 61010 and IEC 61010 and have left the
factory in safe and perfect conditions.
The respective accident prevention regulations established by the professional associations for electrical
systems and equipment must be strictly met at all times.
In order to avoid electrical shock, the valid safety and VDE regulations regarding excessive contact
voltages must receive utmost attention, when working with voltages exceeding 120V (60V) DC or 50V
(25V) RMS AC. The values in brackets are valid for limited ranges (as for example medicine and
agriculture).
The instrument may only be used within the operating ranges as specified in the technical data section
and in low voltage systems up to 690V.
Measurements in dangerous proximity of electrical systems are only to be carried out in compliance with
the instructions of a responsible electronics technician, and never alone.
The voltage testers may no longer be used if one or several functions fail or if no functionality is
indicated.
Do not use this instrument under damp conditions
Perfect display is only guaranteed within a temperature range of -15°C up to +55°C at relative humidity
<85%.
Test leads and test probes may only be touched at handle surfaces provided. Absolutely avoid the direct
contact of the test probes.
Prior to usage ensure perfect instrument function (e.g. on known voltage source).
The safety can no longer be insured if the instrument:
- shows obvious damage - does not carry out the desired measurements
- has been stored for too long under unfavorable conditions
- has been subjected to mechanical stress during transport.
Avoid any heating up of the instrument by direct sunlight to ensure perfect functioning and long
instrument life.
The instrument may only be used under those conditions and for those purposes for which it was
conceived. For this reason, in particular the safety references, the technical data including
environmental conditions and the usage in dry environments must be followed. When modifying or
changing the instrument, the operational safety is no longer ensured
Appropriate Usage
The instrument may only be used under those conditions and for those purposes for which it
was conceived. For this reason, in particular the safety references, the technical data including
the environmental conditions and the usage in dry environments must be followed.
The instrument may only be opened by an authorized service technician
Safety advices (according 61243-3:2014)
Depending on the internal impedance of the voltage detector 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 detector 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 detector 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 detector 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 detector, 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 detector is an interference voltage.
A voltage detector 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.
Elma 1000A
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