PR 5610 Installation Manual Safety Hints
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1.3.3.1 Power supply PR 5610/X1
The PR 5610/X1 is designed for operation with 24 V AC with 50 to 60 Hz or 24 V DC supply, use mains screw L
and N of terminal block to connect 24 V AC or 24V DC supply. For earth connection, refer to chapter 1.3.3.
Protective Earth.
1.3.4 Failure and excessive stress
If the instrument is suspected of being unsafe, shut it down and protect it against accidental operation. This is
the case when the unit
• is physically damaged,
• does not function any more,
• is stressed beyond the tolerable limits (e.g. during storage, transport).
1.3.5 For special attention
Make sure that the construction of the instrument is not altered to the detriment of safety. In particular,
leakage paths, air gaps (of live parts) and insulating layers must not be reduced. The conductors of each cable
must be tied together with a cable strap shortly before the terminal block. The manufacturer cannot be held
responsible for personnel injury or damage caused by an instrument repaired incorrectly by user or installer.
1.3.6 Fuse
The load cell supply circuit is protected by a 250 mA slow blowing fuse.
The following fuse is fitted:
Wickmann order no. 19372K, TR 5 Radial, slow blowing IEC 127-3 250 mA T
! WARNING !
Only a qualified person may replace the fuse.
Using repaired fuses and short-circuiting of the fuse holder are not permitted. Note
that only fuses of the specified type and current rating in accordance with IEC 127
may be used for replacement.
The transformer primary winding is protected by means of a thermal fuse. After overheating, the thermal fuse is
molten. The instrument has to be sent to our service for repair.
The secondary winding is protected by a Multifuse 1,85 A. If it switches off (e.g. due to low power voltage)
disconnect the device from power. After a cooling down period of about 3 min. it can be used again, if the
power voltage is O.K.
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