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DME 940
Grundfos DME 940 User Manual
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96550006
06.2020
ECM: 1283401
www
.grund
fos.com
Trademarks displa
yed in this mat
erial, including b
ut not limite
d to
Grundfos, the Grundfos
logo and “be
think innovate”
are registered tradema
rks owned by The G
rundfos
Group. Al
l rights reserv
ed.
© 2020 Grundfos Holding A/S, all rights reserved.
43
Table of Contents
Default Chapter
2
Table of Contents
2
1 Limited Warranty
3
2 Safety Instructions
3
Symbols Used in this Document
3
Qualification and Training of Personnel
3
Safety Instructions for the Operator/User
4
Safety of the System in the Event of a
4
Failure in the Dosing Pump
4
Dosing Chemicals
4
Diaphragm Breakage
5
Operation with Loose Dosing Head Screws
5
3 General Description
6
Applications
6
Improper Operating Method
6
Identification
7
Type Key
7
Nameplate
8
4 Technical Data
8
Mechanical Data
8
Electrical Data
9
Input/Output Data
9
Approvals
9
Dimensions
9
5 Installation
10
Safety Instructions
10
Installation Environment
10
Installation of Pump
10
Installation Example
11
Electrical Connection
11
Connection Overview
12
6 Functions
14
Control Panel
14
Start/Stop of Pump
15
Priming/Venting of Pump
15
Level Control
15
Diaphragm Leakage Sensor
15
Alarm Output and Indicator Lights
16
Fieldbus Communication
17
Menu
18
Operating Modes
19
Manual
19
Pulse
19
Analog
20
Timer
21
Batch
22
Anti-Cavitation
22
Capacity Limitation
23
Counters
23
Resetting
24
Return
24
Language
24
Input Setup
25
Empty Tank (Alarm)
26
Measuring Units
26
Dosing Monitoring
27
Control Panel Lock
28
7 Start-Up
29
8 Calibration
30
Direct Calibration
31
Check Calibration
32
9 Service
32
Regular Maintenance
32
Cleaning
32
Perform Service
33
Dosing Head Overview
33
Dismantling the Diaphragm and Valves
33
Reassembling the Diaphragm and Valves
34
Diaphragm Breakage
34
Dosing Liquid in the Pump Housing
35
Operation with Loose Dosing Head Screws
35
Repairs
35
10 Fault Finding Chart
36
11 Disposal
36
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Grundfos DME 940 Specifications
General
Brand
Grundfos
Model
DME 940
Category
Water Pump
Language
English
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