Ms: Measurement System; Fi: Flow Sensor Setting; Operation Without Flow Sensor; Table 17: Pressure Sensor Settings - DAB PUMPS PWM 203 Instrucciones De Instalación Y Mantenimiento

PR value Type of sensor
0 6.6 Ratiometric (0-5V)
1 6.7 Ratiometric (0-5V)
2 6.8 Ratiometric (0-5V)
3 4-20 mA
4 4-20 mA
5 4-20 mA
The setting of the pressure sensor does not depend on the pressure to be obtained, but on the sensor to be fitted on the
.
system
6.5.8

MS: Measurement system

This sets the measurement unit system; either international or Imperial The values displayed are shown in Table 18.
Value
Restart
Temperature
Flow
6.5.9

FI: Flow sensor setting

This enables setting of operation as described in Table 19.
Value
0 without flow sensor
1 single specific flow sensor (F3.00)
2 multiple specific flow sensor (F3.00)
3 manual setting for a general single pulse flow sensor
4 manual setting for a general multiple pulse flow sensor
In the case of multi inverter operation, use of multiple sensors can be specified.
6.5.9.1

Operation without flow sensor

When the setting without flow sensor is selected, the FK and FD settings are automatically disabled as these parameters are not
necessary. The parameter disabled message is indicated by an icon showing a padlock.
It is possible to choose between 2 different operating modes without flow sensor by means of the parameter FZ (see par. 6.5.12):
Minimum frequency mode: this mode allows you to set the frequency (FZ) below which it is considered that there is zero flow. In this
mode the electropump stops when its rotating frequency falls below FZ for a time of T2 (see par. 6.6.3).
IMPORTANT: An incorrect setting of FZ causes:
1. If FZ is too high, the electropump could cut out even in the presence of flow and then start again as soon as the pressure
falls below the restarting pressure (see 6.5.5). So there could be repeated episodes of switching on and off, even quite
close together.
ENGLISH
Pressure sensor settings
Information
501 R 16 bar
501 R 25 bar
501 R 40 bar
4/20 mA 16 bar
4/20 mA 25 bar
4/20 mA 40 bar

Table 17: Pressure sensor settings

Units of measurement displayed
International unit of measurement
bar
°C
l / min

Table 18: Unit of measurement system

Flow sensor setting
Type of use

Table 19: Flow sensor settings

101
Full scale [bar]
16
25
40
16
25
40
Imperial unit of measurement
°F
gal / min
Notes
default
Full scale [psi]
232
363
580
232
363
580