Hydraulic Test Run After Installation; Set The Flow Meter Switching Point - ProMinent delta Operating Instructions Manual

4.2

Hydraulic test run after installation

4.2.1

Set the flow meter switching point

The bypass fitting (flow gauge) used depends particularly on the
measured water, in some cases also from the measured variable
or or the combination of the measured variables. The type DGMA
with flow controller is always used for all clear water types and the
type DLG III for contaminated water is also used for upstream flow
controlling.
Hydraulic connection, pipework
With the DGMa, the hydraulic connection of the measured water is
carried out using an 8 x 5 mm hose connection. A shut-off ball
valve is installed before and after the bypass fitting. The optionally
available measuring water filter is installed before the bypass
fitting. Each of the bypass fittings have a mounted sampling cock.
A hydraulic test run of the measuring / control station is necessary
after successful installation.
The sampling cock must be closed! Otherwise measured water
n
will escape
Check all screw connections before the initial commissioning
n
Open the shut-off ball valve on the inlet and outlet ends.
n
The system must now be hydraulically tight. No fluid must leak
n
out.
If fluid should leak out, the reason for this must be determined and
eliminated.
1. For testing, reduce the flow - the
delta Solenoid metering pump must indicate
®
2. Check the screw connection for leaks.
The flow gauge DGMa:
Goal: Reduction in flow should switch -
delta ® solenoid metering pump when the inlet is closed
1. Set the flow using the ball valve.
2. Set value: 40 l/h
3. Test value: 30 to 60 l/h (read-off from the top edge of the
float)
4. Loosen the flow gauge.
5. Push the flow gauge upwards in the rail until the
delta ® Solenoid metering pump switches to
6. Push the flow gauge down far enough until
delta ® solenoid metering pump has just cancelled.
7. Fasten the flow gauge.
8. For testing, reduce the flow
ð - the delta ® Solenoid metering pump must switch to
„Pause" .
Assembly
„Pause"
„Pause" on the
„Pause" .
„Pause" on the
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