HAUBER-Elektronik GmbH
16
18
Maintenance and Repairs
Note:
Type 663 and its models are maintenance free!
Error Table
Only authorised experts, who are familiar with the safety instructions for handling electrical
components, are allowed to repair this control. For handling ATEX-certified controls within
potentially explosive atmospheres the expert also has to be familiar with the safety instructions
relevant there.
Disconnect Type 663 from the mains prior to performing repair or cleaning work! Ensure
that disconnected plug connections are always de-energised! Otherwise, there is an
explosion hazard from sparking when operating ATEX-certified Type 663 in potentially
explosive atmospheres!
Immediately replace defective connection cables!
from sparking when operating ATEX-certified Type 663 in potentially explosive
atmospheres!
Otherwise, there is an explosion hazard
If the control is defective, replace it in its entirety!
Error
Cause
Countermeasure
No m easured value (4...20 m A)No power supply
Check power supply and/or connection cable
Connection cable interrupted
Replace connection cable
Defective fuse
Replace fuse
Wrong connection cable polarity
Correct connection cable polarity
Defective control
Replace control
Relay fails to switch
Lim it value incorrectly adjusted
Correctly adjust lim it value
No power supply
Check power supply and/or connection cable
Connection cable interrupted
Replace connection cable
Defective fuse
Replace fuse
Wrong connection cable polarity
Correct connection cable polarity
Defective control
Replace control
Incorrect reading
Control m ounting not friction-locked
Friction-lock control
Control m ounting at wrong position
Mount control at correct position
EMC issues
See Sect. 19, Grounding Concepts
汉矢德传感器（上海）有限公司
T
：
150 210 98804 www.hauber-elektronik.cn
