Setting The Product; Further Settings; Start Level; Factory Settings - Grundfos MULTILIFT M Installation And Operating Instructions Manual

7. Setting the product

7.1 Further settings

If you wish to change some settings, see the
installation and operating instructions for the level
controller.
Related information
2.1.3 Level controller

7.3 Factory settings

The level controller is preset from factory. See the table below for the preset values.
MULTILIFT
Sensor type
Functions
Unit
Electrical signal
Dry-running level
Signal detection
time
Stop delay
Stop delay time
Min. value 0.09 m
Max. value 1.11 m
Stop level 0.12 m
Start level P1 *
0.17 m
Start level P2
The high
level must be
High level 0.05 m higher
than the start
level for P1.
* The start levels for P1 must be 0.01 m lower than the centre of the inlet pipe to avoid backflow.
Related information
6. Starting up the product
M MD
3 s 5 s
0.09 m
1.11 m
0.12 m
0.17 m
The start level
for P2 must be
- 0.05 m higher
than the start
level for P1.
The high
level must be
0.05 m higher
than the start
level for P2.

7.2 Start level

It is important to adjust the start level of the level
controller according to the inlet pipe.
Start level for MULTILIFT M, MD, MOG, MDG:
between 0.17 and 0.30 m.
Start level for MULTILIFT MLD: between 0.20 and
0.50 m.
Related information
6. Starting up the product
MLD MOG
Analog input
Level
m
0.5 - 3.5 V
Disabled
1 s
Enabled
7 s 10 s
0.10 m 0.11 m
1.12 m 1.13 m
0.13 m 0.14 m
0.20 m 0.17 m
The start level
for P2 must be
0.05 m higher
than the start
level for P1.
The high The high
level must be level must be
0.05 m higher 0.05 m higher
than the start than the start
level for P2. level for P1.
MDG
10 s
0.11 m
1.13 m
0.14 m
0.17 m
The start level
for P2 must be
- 0.05 m higher
than the start
level for P1.
The high
level must be
0.05 m higher
than the start
level for P2.
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