EasyManuals Logo

Grundfos SMART Digital XL DDA 60-10 User Manual

Grundfos SMART Digital XL DDA 60-10
54 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #47 background imageLoading...
Page #47 background image
English (GB)
47
9.1 List of faults
9.1.1 Faults with error message
Display in the
"Alarm" menu
Possible cause Possible remedy
Empty
(Alarm)
Dosing medium tank empty Fill tank.
Check plug connection.
Check contact setting (NO/NC).
Low level
(Warning)
Dosing medium tank almost empty
Overpressure
(Alarm)
Outlet valve blocked Replace valve if necessary. See section
8.4 Perform service.
Isolating valve in outlet line closed Check flow direction of valves (arrow) and
correct if necessary.
Open the isolating valve (on the outlet
side).
Backpressure exceeds max.
operating pressure
Reduce backpressure. Observe section
4.1 Technical data.
Pressure peaks due to high
viscosity
Enlarge diameter of outlet line.
Max. pressure is set too low. See
section 7.9
Pressure monitoring
.
Change pressure setting. See section
7.9
Pressure monitoring
.
Low
backpressure
(Warning/alarm*)
Faulty diaphragm Change the diaphragm. See section
8.4 Perform service.
Broken outlet line Check outlet line and repair if necessary.
Pressure differential between inlet
and outlet side too low
Leakage in the pressure loading
valve at Q < 1 l/h
Install additional spring-loaded valve
(approx. 2 bar) on the outlet side to
increase the pressure differential.
Deaeration valve open Close the deaeration valve.
Air bubble
(Warning)
Broken/leaky inlet line Check inlet line and repair if necessary.
Provide positive inlet pressure (place
dosing medium tank above the pump).
Strongly degassing medium Enable "SlowMode". See section
7.6
SlowMode
.
Tank dosing medium empty Fill tank.
Cavitation
(Warning)
Blocked / constricted / squeezed
inlet line
Blocked/constricted inlet valve
Suction lift too high
Viscosity too high
Enable "SlowMode". See section
7.6
SlowMode
.
Reduce suction lift.
Increase inlet line diameter.
Check inlet line and open isolating valve if
necessary.
Suct. valve leak
(Warning)
Leaky/dirty inlet valve. Dosing
medium flows back from the
dosing head into the inlet line
which reduces the target flow.
Leakage in pressure valve or
pressure loading valve
Check valve and tighten it up.
Flush system.
Replace valve if necessary. See section
8.4 Perform service.
Check O-ring position.
Install strainer in inlet line.
Deaeration valve open Close the deaeration valve.
Flow deviation
(Warning)
Considerable deviation between
target and actual flow
Check installation.
Pump not or incorrectly calibrated Calibrate the pump. See section
6.5 Calibrating the pump.

Table of Contents

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Grundfos SMART Digital XL DDA 60-10 and is the answer not in the manual?

Grundfos SMART Digital XL DDA 60-10 Specifications

General IconGeneral
Max Flow Rate60 l/h
Max Pressure10 bar
Control TypeDigital
Protection ClassIP65
Power Supply50/60 Hz
Turn-down ratio1:3000
ApprovalsCE
Operating Temperature0°C to +45°C

Related product manuals