EDER MCM Series, Инструкция по эксплуатации, Страница: 18 / 32

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digital input
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not available (default setting)
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warning: contact open
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warning: contact closed
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error: contact open
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error: contact closed
step 9 Enable the device by pressing the key “I” in main display and confirm it by
pressing the key ”F1” (Yes) (green control lamp beside the key „I” must glow!)
step 10 Adjust the pressure maintenance pump(s)
Due to the necessary working pressure the pump(s) must be adjusted on the
output side. This adjustment must be done because the delivery rate of the
pump(s) (acc. to their characteristic curve) rises at low pressures.
A hint for a necessary adjustment could be:
After pump stop the overflow valve doesn‘t close completely before approx.
0,5 bar under the upper working pressure.
The setting (1) of the regulating valve(s) must be notated
at the plant- resp. commissioning record.
1: _________ setting regulating valve pump
2: _________ setting regulating valve pump (1)
INFORMATION!
If device setup was completed successfully (only mandatory inputs necessary) this menu
item is removed permanently. The device setup always is available in ”user level 3"
g
”settings”.
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5. Commissioning
NOTE!
The adjustment of the pressure maintenance pump(s) must be done before the setting of the
working pressure! After this neither the working pressure nor the adjustment must be
changed!
If the adjustment was done subsequently the working pressure must be set new!
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optional inputs
(accessories etc.)