General Information; Introduction; Service Documentation; Applications - Grundfos DMH 28X Manual Del Usuario

English (GB) Installation and operating instructions
Original installation and operating instructions
CONTENTS
1. General information
1.1 Introduction
1.2 Service documentation
1.3 Applications
2. Safety
2.1 Identification of safety instructions in this manual
2.2 Qualification and training of personnel
2.3 Risks when safety instructions are not observed
2.4 Safety-conscious working
2.5 Safety instructions for the operator/user
2.6 Safety instructions for maintenance, inspection and
installation work
2.7 Unauthorised modification and manufacture of spare
parts
2.8 Improper operating methods
2.9 Safety of the system in the event of a failure in the
dosing system
3. Technical data
3.1 Identification
3.2 Type key
3.3 Pump types
3.4 Pump performance
3.5 Sound pressure level
3.6 Electrical data
3.7 AR control unit
3.8 Required energy
3.9 Ambient and operating conditions
3.10 Dosing medium
4. Transport and storage
4.1 Delivery
4.2 Unpacking
4.3 Intermediate storage
4.4 Return
5. Product description and accessories
5.1 General description
5.2 Dimensional sketches
5.3 Weight
5.4 Stroke volume
5.5 Materials
5.6 Data of contact pressure gauge for diaphragm leakage
detection (optional)
6. Installation
6.1 General information on installation
6.2 Installation location
6.3 Mounting
6.4 Approximate values when using pulsation dampers
6.5 Optimum installation
6.6 Installation tips
6.7 Pipe lines
6.8 Connecting the suction and discharge lines
7. Electrical connections
7.1 Electric servomotor (optional)
7.2 Electronic preselection counter (optional)
7.3 Electrically heated dosing head (optional)
7.4 Diaphragm controller (optional)
7.5 Connecting the power supply cable
8. Start-up/shutdown
8.1 Initial start-up/subsequent start-up
8.2 Start-up/subsequent start-up of DMH 280
8.3 Start-up/subsequent start-up of DMH 281-288
8.4 Setting the pressure relief valve
8.5 Zero point adjustments (DMH 281-288)
8.6 Operating the pump
8.7 Shutdown
9. Operation
9.1 Switching on/off
9.2 Setting the dosing capacity
4
9.3 Deaeration
9.4 Using the AR control unit (optional)
9.5 Electric servomotor (optional)
9.6 Electronic preselection counter (optional)
Page
9.7 Electrically heated dosing head (optional)
4
10. Maintenance
4
10.1 General notes
4
10.2 Diaphragm leakage control for diaphragm leakage
4
detection
5
10.3 Cleaning and maintenance intervals
5
10.4 Checking the oil level
5
10.5 Cleaning the suction and discharge valves
5
10.6 Replacing the diaphragm and gear oil for dosing head
with single diaphragm (no diaphragm leakage
5
detection)
5
10.7 Replacing the diaphragm for dosing head with double
diaphragm
5
11. Fault finding chart
6
12. Dosing curves
6
13. Disposal
6
These complete installation and operating instructions are also
6 available on www.grundfos.com.
6
Warning
7
Prior to installation, read these installation and
9
operating instructions. Installation and operation
9
must comply with local regulations and accepted
11
codes of good practice.
11
11

1. General information

11
11

1.1 Introduction

12
These installation and operating instructions contain all the
12
information required for starting up and handling the DMH 28X
12
piston diaphragm dosing pump.
12
12
If you require further information or if any problems arise, which
12
are not described in detail in this manual, please contact the
nearest Grundfos company.
13
13

1.2 Service documentation

17
If you have any questions, please contact the nearest Grundfos
19
company or service workshop.
19
19

1.3 Applications

19
The DMH 28X pump is suitable for liquid, non-abrasive and
non-inflammable media strictly in accordance with the
19
instructions in this manual.
19
19
Explosion-proof pumps are identified from the pump
19
and motor nameplates. An EC declaration of
20
conformity is provided in accordance with the EC
21
Note
directive 2014/34/EU, the so-called ATEX directive.
21
This declaration of conformity replaces the
23
declaration of conformity in this manual.
23
24
Warning
24
To operate a pump which has been identified as an
24
explosion-proof pump for the dosing of inflammable
24
media or for operation in potentially explosive
24
operating sites in accordance with the EC directive
24
2014/34/EU, refer to the enclosed manual
"ATEX-approved pumps" in addition to this manual.
25
25
Warning
25
Other applications or the operation of pumps in
27
ambient and operating conditions, which are not
28
approved, are considered improper and are not
28
permitted. Grundfos accepts no liability for any
29
damage resulting from incorrect use.
29
30
30
30
30
30
30
30
30
31
31
31
31
32
32
33
34
37
39
48