Burkert Type 0293 - Manual (Page 5)

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7.3. electrical installation
Danger!
Risk of injury due to electrical shock!
• Before reaching into the system, switch off the power
supply and secure to prevent reactivation!
• Observe applicable accident prevention and safety
regulations for electrical equipment!
max. 1 Nm
Coil
Device socket
Seal
(make certain the position is
correct!)
Fig. 2: Electrical installation
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Warning!
Danger of electrical shock if the protective conductor
contact between the coil and housing is missing!
• Always connect protective conductor.
• Check electrical continuity between coil and housing.
Risk of short-circuit or escape of media through
leaking screw joints.
• Ensure seals are seated correctly!
• Carefully screw together coil and device socket or valve
and pipelines!
Caution!
Risk of injury due to malfunction of valves with alter-
nating current (AC).
Sticking core causes coil to overheat, resulting in a
malfunction.
• Monitor process to ensure function is in perfect working
order!
Note the voltage and current type as specified on
the rating plate.
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8. mainTenance,
TrOubleshOOTing
8.1. safety instructions
Danger!
Risk of injury from high pressure in the equipment!
• Before loosening the lines and valves, turn off the pres-
sure and vent the lines.
Risk of injury due to electrical shock!
• Before reaching into the system, switch off the power
supply and secure to prevent reactivation!
• Observe applicable accident prevention and safety
regulations for electrical equipment!
Warning!
Risk of injury from improper maintenance!
• Maintenance may be carried out by authorized technicians
only and with the appropriate tools!
Risk of injury from unintentional activation of the
system and an uncontrolled restart!
• Secure system from unintentional activation.
• Following maintenance, ensure a controlled restart.
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8.2. malfunctions
Malfunctions
If malfunctions occur, check whether:
• the device has been installed according to the
instructions,
• the connections are correct,
• the device is not damaged,
• all screws have been tightened,
• the voltage and pressure have been switched on,
• the pipelines are clean.
If the magnet does not pick up, ensure that:
• there is no short-circuit or coil interruption,
• the core / core area is not dirty.
If the valve still does not switch, please contact your
Bürkert Service.
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Type 0293