Quantum Q100T Uživatelský manuál stáhnout pdf (Strana 15)

5.3.1 Construction

This unit comprises a combined rotary pump and air separator known as the model EPZ. Fuel

is drawn into the pump via an inlet strainer, and through a checkvalve prior to entering the

pumping section. The pump is based upon a rotary vane device, and the unit includes a bypass

circuit controlled by a mechanical spring valve. Within the pump discharge circuit, all fuel

passes under pressure through a centripetal air separator, and finally through a non-return valve

to the discharge port.

Separated air is vented to atmosphere via the air vent, and any liquid is returned to the inlet

side of the pump via a float valve within the air separation chamber.

5.3.2 Standard delivery rate (Qmax 40 L/min)

For the standard delivery rate the pumping unit is connected to two meters each feeding one

hose and nozzle at a maximum flow rate of 40 litres per minute. This configuration is suitable

for use with petrol and diesel.

5.3.3 High speed delivery rate (Qmax 80 L/min)

For the high-speed delivery rate the pumping unit is connected to one meter feeding one hose

and nozzle at a maximum flow rate of 80 litres per minute. This configuration is suitable for

use with petrol and diesel.

5.4 Alternative Tokheim Meter MA26 and Pulser MP-T1 (Figure 30)

Having the dispensers as described in the Certificate but having the Tokheim Meter MA26 and

the Pulser MP-T1 combination fitted to the Tokheim PAS V3 or the EPZ or PAS 130 pump

and air separator units

5.4.1 Meter

The meter is the Tokheim model MA26. This is a positive displacement device with four

horizontal pistons. The meter output shaft, which rotates once very 0,7 litres, is directly

connected to the pulser model MP-T1. Calibration is provided by moving a lever on a notched

quadrant at the base of the meter, which adjusts a cam acting on the four pistons. Each step is

approximately 0.1%.

5.4.2 Pulser

The pulser is a Tokheim type MP-T1, which generates 100 pulses per litre. This is bolted to the

meter and directly couples to the meter output shaft. This is similar to the MP1 pulser used

with the SM80 meter described in certificate 2286/13 but the gearing is modified to output 70

pulses per revolution and to account for the MA26 meter rotating in the reverse direction to the

SM80 meter.

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Quantum Q100T Uživatelský manuál Strana 15