Hydrotech C, C PLUS, A PLUS, E, E-DC and E PLUS Series PULSAtron - Manual (Page 12)

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• Turn on the power to the pump. The green LED (not available on all mod-
els) will light up and flash off each time the pump strokes.
• Adjust the stroke rate knob to the 100% setting mark (for more information
see Section 5.3, Capacity Control).
• Adjust the stroke length knob to the 100% setting mark if applicable (for
more information see Section 5.3, Capacity Controls).
• If the discharge line is connected directly to a pressurized system it should
be temporarily bypassed during priming of the pump. A bleed valve will
simplify this operation by allowing easy bypass of the discharge fluid. Air
must be purged from the pumphead before the pump will operate against
pressure. (See Figure 9)
Air Bleed Operation:
•
While pump is running, turn adjustment knob
counterclockwise.
• Run with valve open until a solid stream of fluid
comes out of the bypass tubing with no air
bubbles.
• Close air bleed valve by turning adjustment
screw clockwise.
• Chemical should reach the pump head after a few minutes of operation. If
not, remove the discharge fitting and moisten the discharge valve area (ball
check and valve seats) with a few drops of chemical being fed to the meter-
ing pump. For safety, always use protective clothing and gloves, wear safety
glasses and use a proper container to hold the chemical.
• If the pump continues not to prime, refer to Section 7.0, Troubleshooting, of
these instructions.
• Once the pump has been primed and is pumping the chemical through the
head, turn off the power, reconnect the discharge tubing (if it had been
removed) and immediately clean any spilled chemical that is on the pump
housing or head.
• Turn the power on once more and adjust the pump flow to the desired rate
(see Section 5.3.3, Controlling Procedure).
• Always check the calibration of the pump after start-up. It’s best to calibrate
the pump under your typical use conditions.
FIGURE 9