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Safety
Safety
Electrical requirements
The PHC10-2 is powered from the a.c. mains supply via an IEC 320 connector. The operating voltages of
the unit are as follows:
100 - 240 V ac +10%, -15% 47 - 66 Hz 30 W maximum
Fuse replacement
There are two 2 Amp (T) HBC slow-blow fuses which are used for all voltages (one is a spare). Fuses are
replaced as follows:
1. Disconnect the mains power.
2. Use a screwdriver to lever out the fuseholder to reveal the fuse.
3. Remove the fuse and replace it with a 2 Amp (T) HBC 250 V 20 mm x 5 mm fuse, rating as IEC 127.
4. Replace the fuseholder.
5. Reconnect the mains power.
WARNING: Make sure that only fuses of the specified type are used for replacement.
This equipment must be connected to a protective earth conductor via a three core mains (line) cable.
The mains plug shall be inserted only into a socket outlet provided with a protective earth contact.
The protective earth contact shall not be negated by the use of an extension cable without protective
conductor.
WARNING: Any interruption of the protective conductor may make the equipment dangerous.
Make sure that the grounding requirements are strictly observed.
Environmental requirements
The following environmental conditions comply with those defined in BS EN61010-1:2001.
Indoor use
IP30 (no protection against water)
Altitude
Up to 2000 m
Operating temperature
PH10
+10 °C to +40 °C
PHC10-2
0 °C to +50 °C
Storage temperature
PH10
-10 °C to +70 °C
PHC10-2
-10 °C to +70 °C
Relative humidity
PH10
80% maximum for temperatures up to +31 °C
Linear decrease to 50% at +40 °C
PHC10-2
80% maximum for temperatures up to +31 °C
Linear decrease to 50% at +50 °C
Transient overvoltages
Installation category II
Pollution degree
2
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