Siemens PolyBlend PB200-2, Manual

DIAPHRAGM PUMP INFORMATION 

WARNING:  

ALWAYS wear protective 

clothing, face shield, safety glasses and gloves 
when working near or performing and 
maintenance or replacement on your pump.  See 
MSDS Sheet from polymer supplier foe 
additional precautions. 
 

OUTPUT ADJUSTMENT CONTROLS 
 

In most external controlled pumps the uppermost 
knob serves as speed control.  Graduations for 
the Speed Knob appear directly on the face of the 
control panel.  The largest knob below is Stroke 
Control. 
 
 

1.  Speed adjustment:  Speed control provides 

adjustment of the percent of maximum strokes 
per minute.  Turning this clockwise increase 
stroke frequency.  

Note AA7 Series Only:  

When operating pump in the external mode, the 
speed control knob should be fully turned counter 
clockwise.  A click indicates pump is in external 
mode.  
 

2.  Stroke Adjustment; Stroke control 

provides adjustment of percent of maximum 
Liquifram (diaphragm) travel.  Turning this knob 
counterclockwise increases percent output per 
stroke.  Only adjust while pump is running. 
 

PRIMING THE PUMP 
 

Hold tip of syringe firmly in fitting with one 
hand while using the other hand to pull back on 
plunger.  Repeat until a small amount of polymer 
is drawn into the syringe.  The pump is now 
primed. 
 

PUMP CALIBRATION 
 

Perform calibration if your system application 
requires it.  Normally calibration is NOT required. 
 
You will need:  

- A watch 
- A calculator 
- Calibrated cylinder (with at least 1000 ml 

capacity. 

- Length of hose or tubing (same I.D. as 
pump ports) 

1.  Maintain all usual connections to the 

PolyBlend unit except disconnect the polymer 
suction line at pump input.  The flow meter and 
pump setting should be those used for normal 
service. 
 
 

2.  Connect hose or tubing to the pump input.  

Place the free end of the tubing in the graduated 
cylinder. 
 
 

3.  Fill the cylinder with polymer to its 

measured capacity (for example, 1000 ml etc.). 
 
 

4.  Turn on the metering pump.  Allow the 

pump to run until all air has been exhausted from 
the tubing and pump and polymer is injected into 
the mixing chamber. 
 
 

5.  Stop the pump. 

6.  Refill the cylinder to the measured 

capacity. 
 
 

7.  Start the pump again, and start timing as 

the pump runs.  For best results, let the pump run 
long enough to pump at least half of the polymer 
out of the graduated cylinder.  (in general, the 
longer the calibration period, the greater the 
accuracy of the measurement). 
 
 

8.  Stop the pump.  Record the time and level 

of the polymer remaining in the cylinder.  Fill in 
the following equation to find the volume of 
polymer pumped per one unit of time (a minute, 
an hour, or a day). 
 
Starting ml - Remaining ml = ml/Time 
        Calibration period 
 
 

9.  Compare the actual volume pumped to the 

desired volume, and adjust pump controls.   
 
 

10.  Check volume again to confirm the new 

settings. 
 

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