WIKA CPH62I0 - Manual (Page 8)

8 WIKA operating instructions, model CPH62I0
11221801.02 02/2011 GB/D/F/E
GB
2. Safety
Only use the original WIKA connecting cable, which is provided
specifically for connecting the CPT62I0 pressure sensor to the
CPH62I0 hand-held pressure indicator. The same applies to the
extension cable, which may be used to a maximum permissible
length of 5 m.
■ Temperature range:
Do not operate below -10 °C. Permissible ambient temperature
range: -10 ... +50 °C
■ Mains operation:
Only use WIKA power supplies! Operation with the external power
supply is not permitted in hazardous areas!
■ Analogue output:
The analogue output must not be used in hazardous areas!
Only use the analogue output with a passive voltmeter.
■ Equipotential bonding:
Do not apply different potentials to the components connected to
the instrument (pressure sensor, power supply, interface) and do
not connect them by means of an equipotential bonding.
Only connect pressure sensors for operation in hazardous areas!
If two pressure sensors are connected, make sure that they are
connected to the same electrical potential or have an equipotential
bonding.
■ Ambient conditions:
Take care that the device is not exposed to environments that
enable the ingress of humidity, water, conducting liquids or dust.
■ Non intrinsically-safe use:
The hand-held pressure indicator can also be used as non intrinsi-
cally-safe device for connection to non intrinsically-safe devices (i.e.
power supply unit, interface converter, etc.).
Likewise, only approved accessories may be used in this operating
mode!
Before the hand-held pressure indicator is once again used as an
intrinsically-safe device, it must be checked for visible damage and
correct functioning before it is returned to its leather case!