SFA ZPS 2.3 Manual De Funcionamento página 19

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4.2.7 Using the internal pressure sensor
The menu item "internal converter – adjustment" is for the accurate adjustment of the zero point.
IMPORTANT
To avoid possible air leaks inside the pneumatic level device, the dip tube must be completely removed from the water at the end of the
pumping process. For this purpose, choose an appropriate "Overrun" time.
A compressor (optional) can be used if there is a long distance between the dip tube and the control box. For the connection of the
compressor, see 4.2.8 Connection of the compressor (option).
4.2.8 Connection of the compressor (option)
The compressor blows air continuously into the blue hose, thus preventing the formation of condensation which interferes with the signal.
The use of a compressor is mandatory:
- when the blue hose is 15 m or longer,
- or when the lifting station is installed after a grease separator.
If a compressor is used, it can be connected to the power supply via the control box (see 4.2.1 Locations overview) or directly to the mains
using the plug.
Connect the compressor hose to the blue hose with a T-connector. The T-connector must be placed at least 15 cm below the control box.
Adjustment on the compressor: this is done by turning the regulator dial to allow for sufficient flow without changing the signal sent by
the dip tube. See 5. Commissioning.
NOTE
The Control Box ZPS 2.3 delivered with Sanicubic SC is fitted with a compressor that is already attached and connected to the box.
5. COMMISSIONING
1.
Check that the wires for the pumps, mains supply, level sensor(s), compressor (if fitted) and any signal contacts are correctly
connected.
2. If a compressor is present, check that it is switched off.
3. Switch the control box on to mains power.
4. Set the parameters of the control box (see 6.2.1 Parameter settings). Only qualified personnel may set these parameters.
Setting help: values to be used for the internal level sensor of lifting stations
ON level (N2) : "
Base load ON" menu
OFF level (N1) : "
Base load OFF" menu
ON level 2nd pump (N3) : "
Peak load ON" menu
OFF level 2nd pump (N1) : "
Alarm level (HW) : "
High water" menu
Delayed stop: "
menu
overrun"
5. Press
and
6. Carry out a few pumping cycles (water tests) to check the following: cut-in and cut-out heights, measured pumps intensity.
The internal sensor is a pressure sensor 0 to 10 kPa (0 to 1 mWs, 0 to 100 mbar). The sensor is designed as
a differential pressure converter, so that barometric variations are eliminated.
Connect the blue 6/8 mm hose from the dip tube to the connector located on the underside of the control
box.
To calibrate the 0 point, see 6.2.1 Parameter settings > Parameter "intern. converter".
Peak load OFF" menu
: the system is in Automatic mode.
The pneumatic hose must always have a continuous positive
slope from the dip tube to the control box.
NOTICE
SANICUBIC GR
USING THE INLET AT 250 MM
14 cm
3 cm
16 cm
3 cm
18 cm
5 s
19
Pneumatic hose with downward slope, low
points.
Control line kinked or squeezed.
Control line extended.
Risk of condensation !
Risk of signal disruption !
Ö Maintain a continuous positive slope from the
dip tube to the control box.
SANICUBIC GR
USING THE UPPER INLET
25 cm
3 cm
26 cm
3 cm
29 cm
5 s
EN
SANICUBIC SC
35 cm
3 cm
37 cm
3 cm
40 cm
10 s
loading