4
ELECTRICAL CONNECTIONS
18
OPTISENS TUR 2000
www.krohne.com
07/2017 - 4001970202 - MA OPTISENS TUR 2000 R01 en
4.2 Connecting the power supply to the signal converter MAC 100
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. Also note the following items to avoid fatal injuries, destruction or damage of the device or
measuring errors:
•
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.