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3.3.5 Maximum suction lift* (continuous operation) for media
with a viscosity similar to water
Pump model
Pump type
Maximum suction
lift
[m WC]
DMH 251
All
1
DMH 252
All
1
DMH 253
DMH 21-10
1
DMH 43-10
1
DMH 67-10
1
DMH 83-10
1
DMH 100-10
Flooded suction
DMH 254
DMH 50-10
1
DMH 97-16
1
DMH 102-10
1
DMH 136-16
1
DMH 143-10
1
DMH 166-16
1
DMH 175-10
1
DMH 202-16
1
DMH 213-10
1
DMH 276-16
Flooded suction
DMH 291-10
Flooded suction
DMH 255
All
Flooded suction
DMH 257
DMH 272-16
1
DMH 340-16
Flooded suction
DMH 440-10
1
DMH 450-16
Flooded suction
DMH 520-16
Flooded suction
DMH 575-10
Flooded suction
DMH 680-16
Flooded suction
DMH 750-4
Flooded suction
DMH 770-10
Flooded suction
DMH 880-10
Flooded suction
DMH 1150-10
Flooded suction
DMH 1500-4
Flooded suction
* Applies to a filled dosing head.
3.3.6 Maximum suction lift (continuous operation) for media
with maximum permissible viscosity
For maximum permissible viscosity see section Dosing medium.
Pump model
Maximum suction lift
[m WC]
All
Flooded suction
Related information
3.4 Sound pressure level
Pump model
dB(A)
DMH 251
55 ± 5
DMH 252
55 ± 5
DMH 253
65 ± 5
DMH 254
65 ± 5
DMH 255
75 ± 5
DMH 257
75 ± 5
1
Testing according to DIN 45635-01-KL3.
3.5 Electrical data
3.5.1 Enclosure class
The enclosure class depends on the motor variant selected, see
motor nameplate.
The specified enclosure class can only be ensured if the power
supply cable is connected with the same degree of protection.
Pumps with electronics: The enclosure class is only met if the
sockets are protected! The data regarding the enclosure class
applies to pumps with correctly inserted plugs or screwed-on caps.
3.5.2 Motor
Version: see motor and pump nameplates.
3.6 AR control unit
Functions of pumps with electronics:
•
"Continuous operation" button for function test and dosing head
deaeration
•
memory function (stores a maximum of 65,000 pulses)
•
two-stage tank-empty signal (e.g. via Grundfos tank empty
sensor)
•
stroke signal/pre-empty signal (adjustable), e.g. as a feedback
to the control room
•
dosing controller function (only with sensor - optional)
•
diaphragm leakage detection (only with sensor - optional)
•
access-code-protected settings
•
remote on/off
•
hall sensor
•
operating hours counter
•
motor monitoring.
Operating modes:
•
manual
Stroke frequency: manually adjustable between zero and
maximum
•
contact signal control
Multiplier (1:n) and divisor (n:1)
•
current signal control 0-20 mA / 4-20 mA
Adjustment of stroke frequency proportional to the current
signal.
Weighting of current input.
11
English (GB)
Summary of Contents for DMH 25X
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