Nova-Tech LMI Roytronic Series A Metering Pump User Manual

Page 17

OPERATION

7. External Control Connector (5-Pin): This connector is for the connection of various

options and accessories that can be used to externally control the pump. The pin func-

tions (and the wire color for the standard LMI external control cable) are as follows:

1. Remote On Signal (Brown)

2. Ground/Return Connection (White)

3. External Pulse Signal (Blue) (used only with A3, and A7 Series pumps)

4. 18Volt Supply Voltage (Black)

5. 4-20mA Input Signal (Green/Yellow) (used only with A8 Series pumps).

Some of the accessories available for use with A3, and A7 Series metering pumps are

listed below. Note that an Adapter Cable (48488) is needed when connecting any of the

MICROPACE(TM) units or flowmeters.

A. MICROPACE

™

A/D Converter (MP-100) - for translating a 4-20 milliamp signal

into an analog signal.

B. MICROPACE

™

Divider (MP-400D) - for reducing the frequency of high frequency

pulses.

C. MICROPACE

™

Multiplier (MP-500M) - for increasing the frequency of low

frequency pulses.

D. Pulse Transmitter (48489) - for pulsing in time with another LMI Electronic

Metering Pump.

E. RFP Flowmeter and Programmable Divider - for pacing the stroke frequency off

of the system flow.

F. FC Flowmeter/Contactor - for pacing the stroke frequency off of the system flow.

4.2

Start-up and Adjustment

• The pump is normally self-priming if suction lift is 5 ft (1.5m) or less and the steps below

are followed.

• Pumps are shipped from the factory with water in the pump head to aid in priming.

4.2.1 Start-Up/Priming for FastPrime™ Heads

Read this entire section completely before proceeding.

When all precautionary steps have been taken, the pump is mounted, and the tubing is

securely attached, you may now start priming the pump.

1. Plug in or switch the pump on.
2. While the pump is running, set the Speed Adjustment Knob and the Stroke Adjust-

ment Knob at 100%.

3. Turn The FastPrime

™

knob 1 to 2 turns counter-clockwise Q.

4. The suction tubing should begin to fill with solution from the tank.
5. A small amount of solution will begin to discharge out the return line of the FastPrime

™

valve. Once this happens, turn the knob clockwise P until hand tight and SHUT THE

PUMP OFF.

6. The pump is now primed.
7. Proceed to output adjustment, Section 4.3.

1.0000

DETAIL D

SCALE 5 : 1

DETAIL E

SCALE 5 : 1

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