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Grundfos DMX Series User Manual
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29
V3.0
DMX model 227
7
.
6
Maintenance
!
WARNING
Do
not open electronics or sensor!
Repair only by authorized qualified personnel.
❏
Sensor
•
Clean it in case of malfunction.
•
If it still does not operate correctly:
Replace sensor.
❏
Electronics
-
No maintenance possible by the user.
•
If it does not operate correctly:
Call GRUNDFOS service.
28
30
Table of Contents
Default Chapter
8
Table of Contents
8
Installationdata
10
Installation Diagram
10
1 Of General Interest
11
In General
11
Using this Paper
11
Warranty
11
2 Safety Instructions
12
Application of the Product
12
Obligations of the Operating Authority
12
Averting Dangers
12
3 Technical Data
13
Pump Types
13
Ambient and Operating Conditions
13
Dosing Medium
13
Admissible Temperature of Dosing Liquids
13
Maximum Permissible Viscosity
14
Pump Performance
14
Accuracy
14
Performance
14
Suction Heights
15
Media with a Viscosity Similar to Water
15
Suction Heights for Media with Maximum Permissible Viscosity
15
Dosing Curves
15
Weight
15
Materials
15
Dimensional Drawing
16
4 Installation
17
Installation Information
17
Transport and Storage
19
Mounting
19
Connecting the Suction and Pressure Lines
19
Electrical Connections
20
Connect the Motor
20
5 Commissioning
21
Inspections before Commissioning
21
6 Operation
22
Description of the Device
22
Principle of Function
23
Switching on / off
23
Switching on
23
Switching off
23
Adjustment of Dosing Rate Using Frequency Converter
23
Possible Failures
24
7 Electronics Diaphragm Breakage Sensor
25
Technical Data of the Electronics
25
Dimensional Drawing (Electronics Enclosure)
25
Function
25
Pumps Prepared for a Diaphragm Breakage Indication
25
Using the Contacts
26
Description of the Device
26
Electrical Connections of the Electronics
26
Relay Outputs
27
Screwing the Sensor into the Dosing Head
28
Commissioning
28
Maintenance
29
8 Maintenance
30
Rates for Cleaning and Maintenance
30
Gear Oil Change
30
Cleaning the Suction and Pressure Valves
31
Exchanging the Diaphragm
32
Appendix: Dosing Curves for DMX Model 227
33
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Grundfos DMX Series Specifications
General
Brand
Grundfos
Model
DMX Series
Category
Water Pump
Language
English
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