Troubleshooting; Ec Declaration Of Conformity - Hydropa DS-4 7 Serie Anleitung

8.6 Troubleshooting

Error
No signal from pressure
switch
No signal from pressure
switch, or pending signal
does not drop off
No signal from pressure
switch, or pending signal
does not drop off
No signal from pressure
switch, or pending signal
does not drop off
Switching point
displacement
Pressure switch oily
Pressure switch exhibits
leaks on connection
thread

9 EC Declaration of Conformity

The unit delivered meets legal requirements. Directives, harmonised standards and documents
applied are listed in the EC Declaration of Conformity valid for the product. The operational
reliability and safety of the unit is also confirmed by the CE symbol on the rating plate
BA-KDS/GB/2010-REV1
Possible cause
No power supply
Defective microswitch
Mechanical defect
(e.g. piston)
Adjusting element
unscrewed too far
Material wear (compression
spring)
Internal leakage flows
Mechanical damage
Operating Manual / Piston Pressure Switch
Error detection / Remedy
Check power supply (skilled electrical worker)
Check with the aid of a measuring device whether a
switching cycle occurs during pressure change
between the contacts on the pressure switch (skilled
electrical worker)
Check with the aid of a measuring device whether a
switching cycle occurs during pressure change
between the contacts on the pressure switch (skilled
electrical worker)
Screw in the adjusting element somewhat and
check the switching point
Readjust the switching point (see chapter "7
Commissioning" on page 15)
Remove the pressure switch as described in chapter
"8 Dismantling" and forward it for inspection
Remove the pressure switch as described in chapter
"8 Dismantling" and forward it for inspection
17