RS Pro RS-9331 Manual De Instrucciones página 3

Electrical Tester / English
1.3 Warnings
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 forlimited ranges (as for example medicine
and agriculture).
Prior to measurement ensure that the test leads and the test instrument
are in perfect condition.
When using this instrument only the handles of the probes may be touched - do
not touch the probe tips.
This instrument may only be used within the ranges specified and within
low voltage systems up to 1000V.
Prior to usage ensure perfect instrument function (e.g. on known voltage
source).
The voltage detector is not to be used, if the battery box is open.
The voltage detectors have to be kept dry and clean.
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 I sonly guaranteed within a temperature range of -10℃ up
to +55℃, at relative humidity question <85%.
If the operator's safety cannot be guaranteed, the instrument must be
removed from service and protected against use.
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1.4 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.
All relevant statutory regulations must be adhered to when using this instrument
1.5 Safety Advices
• 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.
Electrical Tester / English
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