Pulsafeeder Pulsa GLM DM1-6 User Manual download pdf (Page 9)

3. Equipment Startup

3.1 Fastener Inspection

All pump fasteners should be checked prior to pump operation, and occasionally during use. This would

include reagent head mounting bolts, motor mounting bolts, and the hardware that secures the pump to

its foundation.

The motor and reagent head mounting bolts should be torqued to 4.5 N-M (40 IN-LBF). Bolts should be

tightened in a star pattern across the head to assure uniform clamping of the diaphragm (see

recommended tightening sequence in above diagram).

3.2 Output Adjustment

All PULSA GLM

pumps have a knob for manual stroke length

adjustment. The knob can be adjusted to any value between 0 to 100%.

The stroke length setting is directly proportional the flow rate of the pump.

1. Push the knob in towards the gearbox to release the locking

mechanism.

Note - Making adjustments without releasing the lock may damage

the locking mechanism.

2. Adjust the knob to the desired output.

a) Read the setting directly from the knob marking where it aligns with

the stroke barrel.

b) The knob is labeled in 10% increments with 1% graduation marks.

The knob will lock in 0.5% increments.

Note – Do not adjust the knob beyond the indicated range.

For example, to set the pump to 75% stroke length (starting from the factory default setting of 0%)

push the knob in (to unlock) and turn it approximately ¾ turn clockwise until he 75% indicator is

aligned with the line on the stroke adjustment barrel.

3. Release the knob to re-engage the locking mechanism.

Note – Stroke adjustments should be made while pump is operating.

Figure 5: Reagent Head Bolt tightening

Figure 6: Stroke Adjustment Knob

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Pulsafeeder Pulsa GLM DM1-6 User Manual Page 9