Etatron DLX-MF/M, Инструкция по эксплуатации и руководство по техническому обслуживанию

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8.0 DESCRIPTION OF OPERATING MODE
MANUAL
In this mode, the pump operates with its flow rate manually controlled the keypad. Stroke rate can be set in three
ways:
• Pulses per minute (this is common for normal metering pump operations).
• Pulses per hour.
• Pulses per day.
Note: if external flow sensor (optional) is not installed "Reference Injections" and "Max. Injection Difference" must
be set to zero.
1 x N
When a contact water meter is connected to the pump, every pulse received from the water meter causes the
pump to pulse N times. With the keypad, the user sets these parameters:
• The value of N, the number of pump pulses for each water meter pulse received.
• Pump stroke rate, how fast the N pulses will occur.
While the pump is still pulsing, further water meter pulses received are ignored.
Example:
• Pump in “1 x n” mode.
• N set to “23”.
• The moment the water meter or other device emits a pulse, the pump starts dispensing 23 injections. If the
contact is closed again during this phase, these are ignored .
• On completion of the 23 injections, the pump waits for the next pulse to restart the dispensing cycle.
1 X N(M)
This is the same as "1 X N" operation (2.2 above), except that while the pump is still pulsing, further water meter
pulses (M) received are registered. Thus, the total number of pump pulses are 1 X N(M). The values of N and M
are set by the user.
Example:
• Pump in “1 x n (M)” mode.
• N set to “23”.
• The moment the water meter emits a pulse, the pump will effect 23 injections. If the contact closes again during
this phase, e.g. 5 times, the microprocessor multiplies the two data and the pump supplies 115 injections (23 x 5).
• On completion of the 115 injections, the pump waits for the next external pulse to restart the dispensing cycle.
1/N
In this mode, N number of water meter pulses received will activate the pump to pulse once. The value of N is
set by the user.
Example:
• Pump in “1 / n” mode.
• N set to “23”.
• The moment the water meter or other device has emitted 23 pulses, the pump gives an injection.
mA
In this mode, the pump accepts an incoming 0-20 mA signal to control its stroke rate. This allows for remote and
proportional control. From the pump control panel, the user sets the following:
1 - "Set 1", the value in mA which the pump should start pumping, eg. 0.0 mA, 4.0 mA, etc.
2 - "Set 2", the value in mA which the pump should stop pumping, eg. 18.0 mA, 20.0 mA, etc.
3 - The pump stroke rate at "Set 1", eg. 4.0 mA = 0 strokes/minute, etc.
4 - The pump stroke rate at "Set 2", eg. 20.0 mA = 120 or 160 strokes/minute, etc.
5 - Whether the pump should continue working or stop if the incoming signal falls below "Set 1".
6 - Whether the pump should continue working or stop if the incoming signal rises above "Set 2".
In this mode, pump stroke rate (and thus stroke rate) is proportional for all mA values between "Set 1" and "Set
2". Since Set 1 and Set 2 can be independently set, reverse signal input operation (e.g. 20-4 mA)is also possible.
For example:
Set 1 = 20 mA at 0% of pump flow rate.
Set 2 = 4 mA at 100% of pump flow rate.
PPM
The PPM (parts per million) mode allows for very accurate chemical dosage. The pump must be connected to a
contact water meter for this function to work. The user uses the pump keypad to program the following:
• Input of contact water meter details in litres per pulse: 0.1, 0.25, 0.5, 1, 2.5, 5, 10, 25, 50, 100, 250, 500 or 1,000
litres per pulse.