Table of Contents
Advertisement
Neptune stepper motor-driven diaphragm pump NXP-M and NXP-P
Venting the NXP-M
Perform the following working steps:
1. Open the vent screw by one complete turn (looking onto the dosing
head, anti-clockwise).
2. Start the pump. To this end, set the stroke frequency to 100%.
3. Stop the pump as soon as there is a continuous throughflow from the
dosing head venting facility with no air bubbles. Turn the stroke
frequency setting to 0% to stop the pump. The dosing pump stops
delivery.
4. Close the vent screw.
ü
The dosing pump is vented.
Venting the NXP-P
Perform the following working steps:
1. Select the Internal.operating mode.
2. Press Stop.
3. Keep + depressed until 100% delivery capacity is achieved.
4. Open the vent screw by one complete turn (looking onto the dosing
head, anti-clockwise).
5. Press Start.
4
The dosing pump starts delivery at the highest stroke frequency.
6. Press Stop, as soon as there is a continuous throughflow from the
dosing head venting facility with no air bubbles.
4
The dosing pump stops delivery.
7. Close the vent screw.
ü
The dosing pump is vented.
i
If you are using strongly effervescent dosing media, allow
them to flow out continuously. Open the vent screw such that
about one drop per 1 – 3 strokes escapes, then close the
discharge.
11.2 NXP-P: Operating modes
The NXP-P dosing pump has the following operating modes:
Internal
- Manual setting of the delivery capacity,
n
External
- Controlling the stroke frequency and number of strokes in
n
dependence on the number of pulses and the pulse spacing.
Subject to technical changes.
11.2.1 Internal operation
11.2.1.1 Selecting the operating mode
1. Press the Int key to select the operating mode.
4
The dosing pump displays the start screen of Internal operating
mode with the symbol .
0%
Ext
-
+
Start
Fig. 29: Start display internal operation
11.2.1.2 Starting the dosing pump
1. Use the + and - keys to set the desired stroke frequency. Adjustment
range: 0 – 100%.
i
Pressing the + and - keys increases/decreases the stroke
frequency by 1%. If you keep the key depressed, the stroke
frequency increases/decreases increasingly in intervals of 2, 5
and 10.
2. Press Start.
ü
Dosing pump has started.
11.2.1.3 Stopping the dosing pump
è
Press Stop.
4
The system displays the "Stop" signal and Stop changes to Start.
ü
Dosing pump has stopped.
11.2.2 External operation
The stroke frequency and consequently the delivery capacity of the
dosing pump NXP-P in the
External
the quantity and interval of the incoming pulses in connection with the set
transmission factor.
11.2.2.1 Selecting the operating mode
è
Press Ext to start the device.
4
The dosing pump displays the start screen of the
operating mode with the symbol .
100%
Int
-
+
Start
Fig. 30: Start display external operation
Operating instructions
operating mode is determined by
External
Operation
31
Advertisement
Table of Contents
