KROHNE MAC 100 EN - Manual (Page 23)

ELECTRICAL CONNECTIONS
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OPTISENS MAC 100
www.krohne.com 04/2011 - MA OPTISENS MAC 100 R01 en
4.6 Connecting the signal cables
For all information concerning the signal cables of the used sensor(s) and their connection refer
to the relevant sensor handbook(s).
4.7 Connecting the power supply
INFORMATION!
The cable glands installed by the manufacturer are designed for a cable diameter of 8 to 13 mm.
If you are using cables with a larger diameter, you must replace the manufacturer's cable glands
with suitable ones.
DANGER!
The device must be grounded in accordance with regulations in order to protect personnel
against electric shocks.
DANGER!
Never install or operate the device in potentially explosive areas, it might cause an explosion that
can result in fatal injuries!
CAUTION!
When connecting the power supply, always note the safety regulations of the current state of the
art. To avoid fatal injuries, destruction or damage of the device or measuring errors, also note
the following items:
• De-energise the cables of the power supply before you start any installation works!
• Always keep the housing of the device well closed if you do not perform any installation
works. The function of the housing is to protect the electronic equipment from dust and
moisture.
• Assure that there is a fuse protection for the infeed power circuit (I
nom
≤ 16 A) and a
disconnecting device (switch, circuit breaker) to isolate the signal converter.
• Check the nameplate and assure that the power supply meets the voltage and frequency of
the device. You can operate the device in the range of 100...230 VAC and 8 VA with a tolerance
of -15/+10% while 240 VAC +5% is included in the tolerance range (a version with a power
supply of 24 VAC/DC is in preparation). A power supply outside these specifications may
destroy the device!
• Assure that the protective earth conductor (PE) is longer than the L- and N-conductor.
INFORMATION!
The manufacturer has designed all creepage distances and clearances according to VDE 0110
and IEC 664 for pollution degree 2. The power supply circuits fulfil the overvoltage category III
and the output circuits fulfil the overvoltage category II.
.book Page 23 Friday, April 1, 2011 4:59 PM