SIGMA S2Ba - Manual (Page 53)

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Page 53 Pr o Minent ®
Operating / Troubleshooting
Batch size In “batch” operating mode:
The batch size can by changed from the “batch size/remaining litres” display.
The S3Ca returns to the original continuous display a few seconds after the batch size has
been reset.
Priming The “priming” function is activated by pressing both arrow keys at the same time (in “Stroke
rate” permanent display).
Cancel error Error messages are cancelled by pressing the P key briefly.
Settings
mode
P
P
P
i
STOP
START
Continuous
display
2 s
Stop/start pump
Change directly alterable values
= Security lock (CODE 1)
= Security lock (CODE 2)
Prime
Start batch (in "batch" operating mode only)
Cancel error
Check adjustable values
2
2
1
1
8.2 Remote control
Remote control of the S2Ca is possible via a control cable or PROFIBUS ® (see Section 5.3 and
Chapter 7, ”Supplementary instructions for ProMinent ® gamma/ L and ProMinent ® Sigma
versions with PROFIBUS ® “ as well as your documentation in the annex).
9 Troubleshooting
WARNING
• EX-pump only: metering pumps and their peripheral equipment must be serviced by
specially trained or authorised personnel!
• Always take suitable precautions when using hazardous chemicals!
• Ensure the equipment is de-pressurised before working on the pump!
Pump primes despite completed stroke action and no venting
Cause Crystalline deposits on the ball seat because valves have dried out.
Remedy ̈ Remove the suction sleeve from the chemical supply container and rinse out the liquid end
thoroughly.
̈ If still unsuccessful, dismantle valves and clean.
Fluid is seeping from the top plate
Cause The liquid end is not sealed against the pump diaphragm.
Remedy
̈ Tighten screws in the liquid end.
̈ If unsuccessful, replace the diaphragm (see section 4.3).