Self and personnel protection
Electric shock may result in major injuries or
■
death and may endanger the functionality of
objects (e.g. damage to the device).
The proper function of the voltage tester must
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be checked shortly before use.
Ensure that measuring leads and the device are
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in proper working order.
Check the device by connecting it to a known
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power source, e.g. a 230 V socket.
• If the display for one or more functions fails
in the process, the device must no longer
be used and must be checked by qualified
specialist personnel.
Hold the device only at the handles, avoid
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touching the test probes!
Read and comply with the five safety rules
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1. Disconnect mains
2. Prevent reconnection
3. Test absence of voltage by approved means
(establish absence of voltage using two-pole
voltage indicators)
4. Ground and short-circuit
5. Protect adjacent live parts using covers or screw
off
Safety in the workplace
Avoid operating the device in the vicinity of
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electric welding machines, induction heaters
and other electromagnetic fields.
After abrupt changes in temperature, the
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device must be allowed to adapt to the new
ambient temperature for approx. 30 minutes to
stabilise the IR sensor.
Do not expose the device to high temperatures
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for any length of time.
Avoid dusty and humid ambient conditions.
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In commercial facilities the accident prevention
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regulations (in Germany issued by the commer-
cial trade association for the safety of electrical
systems and equipment) must be observed.
Safety Instructions
General safety instructions
Always visually check the device for damage
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before initial use and after transport. Ensure
any damage is repaired by trained service
personnel prior to initial use.
The device must not be operated in damp
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conditions.
Do not use with the battery compartment open!
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The measuring leads must be disconnected
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from the measuring circuit during battery
replacement.
In order to protect the device from damage,
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remove the batteries if the device is not in use
for a prolonged period of time.
Measurement devices and accessories are not
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toys and should always be kept away from
children!
Only use the enclosed safety measuring leads
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or equivalent measuring leads that comply with
the correct measuring category CAT IV 600 V.
To avoid electric shocks, precautionary mea-
■
sures must be observed when working with
voltages greater than 70 V (30 V) C or 33 V
(16 V) eff. AC. According to DIN VDE stan-
dards, these values represent the limit at which
exposed touchable surfaces are still safe.
(Values in brackets typically apply for medical
or agricultural applications.)
The testing device must only be used in the
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specified measuring ranges.
Use only genuine Würth accessories
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and spare parts.
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