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Safety
6
Safety
Electrical requirements
The SPA1 is powered from the a.c. mains supply via an IEC 320 connector. The operating voltages of the
unit are as follows:
90 – 264 V ac
47 – 63 Hz
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.
An earth stud is provided to allow bonding of the CMM metal parts to the protective earth.
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 (or exceed) BS EN 61010-1:1993
Indoor use
Altitude
Operating temperature
Storage temperature
Relative humidity
Transient overvoltages
Pollution degree
NOTE: If a higher IP rating is required, following a risk assessment by the installer of the equipment, an
additional external enclosure will be required to house the SPA1.
600 W maximum
IP30 (no protection against water)
up to 2000 m
0 °C to +50 °C (local to SPA2)
-10°C to +70°C
80% maximum (non-condensing) for temperatures up to +31 °C.
Linear decrease to 50% at +40 °C
Installation category II
2
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