Unauthorised Modification And Manufacture Of Spare Parts; Improper Operating Methods; Safety Of The System In The Event Of A Failure In The Dosing System; Technical Data - Grundfos DMH 28X Instrucciones De Instalación Y Operación

2.7 Unauthorised modification and manufacture of
spare parts
Modification or changes to the pump are only permitted following
agreement with the manufacturer. Original spare parts and
accessories authorised by the manufacturer are safe to use.
Using other parts can result in liability for any resulting
consequences.

2.8 Improper operating methods

The operational safety of the supplied pump is only ensured if it is
used in accordance with section
limit values must under no circumstances be exceeded.
Explosion-proof pumps are identified from the pump
and motor nameplates. An EC declaration of
conformity is provided in accordance with the EC
Note
directive 2014/34/EU, the so-called ATEX directive.
This declaration of conformity replaces the
declaration of conformity in this manual.
Warning
To operate a pump which has been identified as an
explosion-proof pump for the dosing of inflammable
media or for operation in potentially explosive
operating sites in accordance with the EC directive
2014/34/EU, refer to the enclosed manual
"ATEX-approved pumps" in addition to this manual.
If the assumption is made that a safe operation is no longer
possible, switch off the pump and protect it against unintentional
operation.
This action should be taken
• if the pump has been damaged.
• if the pump no longer seems to be operational.
• if the pump has been stored for an extended period of time in
poor conditions.
2.9 Safety of the system in the event of a failure in the
dosing system
DMH 28X dosing pumps are designed according to the latest
technologies and are carefully manufactured and tested.
However, a failure may occur in the dosing system. Systems in
which dosing pumps are installed must be designed in such a
way that the safety of the entire system is still ensured following a
failure of the dosing pump. Provide the relevant monitoring and
control functions for this.
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3. Technical data. The specified

3. Technical data

3.1 Identification

3.1.1 Nameplate

1
Grundfos Water Treatment GmbH - Reetzstr. 85 - D - 76327 Pfinztal
XXX XX-XX X-XXX/X/X-X-XXXXXXXXXXX
2
PN: XXXXXXXX SN: XXXXXXXXXX
XXX l/h, XXX bar, 50 Hz
4
XXX l/h, XXX bar, 60 Hz
XXX l/h, XXX bar, 100 Hz
EX II XXXXXXXXXXXXXX
6
Type: XXX P11XXXX
8
Made in Germany
10
Fig. 1 Nameplate
Pos. Description
1 Type designation
2 Product number
3 Serial number
4 Pump performance by frequency
5 Marks of approval
6 ATEX designation
7 Type examination certificate number
8 Pump model
9 Production code, year and week
10 Country of origin
3.1.2 Type key
The type key is used to identify the precise pump and is not used
for configuration purposes.
Type
DMH 55-100D B-SS/V/SS-X-E2A1A1XEMAG
Nominal dosing capacity [l/h]
DMH 55-100D B-SS/V/SS-X-E2A1A1XEMAG
Max. counterpressure [bar]
DMH 55-100D B-SS/V/SS-X-E2A1A1XEMAG
Pumps marked with a "D" after the pressure value
100D
are double-head pumps.
Control variant
DMH 55-100D B-SS/V/SS-X-E2A1A1XEMAG
B Standard (manual control)
S1 Stroke counter NAMUR, NC output
AR* AR control unit, pump mounted
AW* AR control unit, wall mounted
Servomotor, 1AC 115-230 V, 50/60 Hz, 4-20 mA
D3
control (without manual operation)
Servomotor, 24 V DC, 4-20 mA control (without
D4
manual operation)
EX servomotor, 1AC 115-230 V, 50/60 Hz, 4-20 mA
D6
control, type EX II 2G Ex db IIB T4
EX servomotor, 24 V DC, 4-20 mA control, type EX
D7
II 2G Ex db IIB T4
* Only for model 280, 281
3
5
IBEx XXXXXXXXXXX
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