User guide
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A Stepdos pump is a microprocessor-controlled membrane dosing pump for liquids. It is used for
the quasi-continuous and consistently neutral or aggressive dosing of liquid (depending on the
pump model).
The pumps have two different operating modes:
o
Run mode Operating function for volume flow rate dosing
o
Dispense mode Operating function for infinitely variable batch dosing
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In run mode
1. Volume flow rate [ml/min]
2. Calibrator input [g]
5. Start / Stop
In dispense mode
3. Dispense volume [ml]
4. Dispense time [s]
5. Start / Stop
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In run mode
1. Volume flow rate [ml/min]
In dispense mode
2. Dispense volume [ml]
Automatic calibration is activated when scales are connected to the calibrator input (2). You can
specify how often calibration should take place per hour in the input fields. During calibration the set
volume flow rate is determined with the actual change in weight on the scales and the pump is
automatically readjusted.
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Please see separate operating instructions for more details of appliance properties.
To ensure correct communication, you must set the transfer parameters in the appliance’s serial
interface to the following values:
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