Installation & Operation Manual Proven Quality since 1892
ECON actuator Fig. 7907, type ELA80
–
3000
Rev.19
–
April 2, 2021
41
7
MAINTENANCE
7.1
Maintenance
WARNING:
Turn off all power before performing maintenance on the actuator.
POTENTIALLY HIGH PRESSURE VESSEL. Before removing or
disassembling your actuator, ensure that the valve or other actuated
device is isolated and not under pressure.
Under normal conditions, maintenance should be carried out at six month intervals. But when the
conditions are more severe, more frequent inspections may be advisable.
•
Ensure that the actuator is properly aligned with the valve (stem) or other actuated device
•
Ensure that all wires are insulated and connected properly
•
Ensure that all screws are present and tightened
•
Ensure that all internal electrical devices are clean (dry and free of dust)
•
Ensure that conduit connections are properly installed and are dry
•
Check the internal devices for any condensation
•
Check the power supply of the internal heater
•
Check the enclosure O-ring seals and verify that the O-rings are not pinched
•
Check the declutch mechanism
•
Visually inspect the open/close cycle
•
For Ex-actuators the cover seal O-ring needs to be inspected and replaced if damaged.
•
Inspect the identification labels for wear and replace it if necessary
•
Damaged or broken parts may only be replaced by genuine parts
WARNING:
Flameproof Enclosure! Before opening, ensure the absence of any
gas and voltage
Treat cover with care. Seals and sealing surfaces may not be damaged
or dirty in any. Do not jam the cover during mounting.
EMI - Do not use walky-talkies and cell phones or other devices which
might cause electromagnetic interference (EMI) with the actuator. Keep
these devices away from the actuator and control unit for at least one
meter. EMI can cause damage to the actuator influence the operation.
7.2
Tools
•
Metric Allen Key (Hex Wrench)
•
Screw Driver
•
Metric Spanner
•
Wrench 200mm
•
Wrench 300mm
•
Wire Stripper Long Nose
•
Digital Multi-meter (AC, DC, Resistance)
•
PCU Board Option: DC Signal Generator (4~20mA DC, 0~10V DC)
•
In case a PCU-A or
–
D board has been mounted: DC signal generator (4-20mA DC)
•
In case a PCU and CPT board has been mounted: mA Meter (0~25mA)
