Lutz-Jesco MAGDOS LP, Руководство по эксплуатации

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Operation
Commissioning the dosing pump
40
Solenoid-Diaphragm Dosing Pump MAGDOS LP
© Lutz-Jesco GmbH 2014
Operating Instructions
BA-10231-02-V03
Perform the following working steps:
1. Open the shut-off valves on the suction and discharge sides if
present.
2. Plug in the dosing pump's mains plug to the power supply.
3. Vent the dosing pump, (see „Venting the dosing pump“ on page 40).
4. Scale the delivery capacity of the dosing pump, if necessary (see
„Scaling the delivery capacity“ on page 40).
5. Calibrate the dosing pump (see „Calibrating the dosing pump“ on
page 41).
6. Select an operating mode and start the dosing pump in accordance
with the instructions in the chapter entitled „Operating modes“ (see
page 41).

The dosing pump primes. if it does not prime enough, use a
priming aid, (see „Priming aid“ on page 25).

The dosing pump is commissioned.
11.1.1 Venting the dosing pump
Fig. 11-1: Dosing head venting facility with vent screw
Precondition for action:

The dosing head venting facility connected has been connected in
accordance with the chapter entitled „Connecting the dosing head
venting facility“ (see page 19).
Perform the following working steps:
1. Open the vent screw by one complete turn (looking onto the dosing
head, anti-clockwise).
2. Press
Menu
.
3. Use the

or

key to choose the Venting menu item and press
OK
.
4. Press the
Start
key and keep it pressed.

The dosing pump starts delivery at the highest stroke frequency.
5. Release
Start
key as soon as there is a continuous throughflow
from the dosing head venting facility with no air bubbles.

The dosing pump stops delivery.
6. Close the vent screw.

The dosing pump is vented.
11.1.2 Scaling the delivery capacity
You can use the Scaling function to adjust the MAGDOS LP flexibly to
the local conditions during the start-up. Sometimes, a dosing pump
model selected during the planning phase turns out to be too big. To
minimise the risk of overdosing, the delivery capacity can be limited or
scaled.
The reduced delivery capacity applies to all operating modes of the
dosing pump. The setting is retained even after an interruption to the
power supply.
Perform the following working steps:
1. Press
Menu
.
2. Use the

or

key to choose the Scaling menu item and press
OK
.
3. Use the
+
and
-
keys to set the desired delivery capacity in l/h and
press
OK
.

The bar that indicates delivery capacity is now displayed in two
parts.
Fig. 11-2: Display with scaled delivery capacity
The meaning of the bars is as follows:

Delivery capacity scaled.
At initial commissioning, it is advisable to prime the pump
without back pressure. For this purpose, we recommend
installing a relief valve on the discharge side of the dosing
pump.
i
If you are using effervescent media, allow them to flow out
continuously. Open the vent screw such that about one drop
per 1- 3 strokes escapes.
Bar Meaning
top The scaled delivery capacity value (part of the
delivery capacity in the factory setting)
bottom The current delivery capacity expressed as a
percentage of the scaled delivery capacity
To reverse scaling, set the delivery capacity in the Scaling
menu to the value 0 or to the maximum possible value.
i
Manual mode
Menu Stop - +
Liter
day
75.0%
90.0
i