Thermo Scientific AquaPro Analyzer User Guide
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Each of the PID controller options used to configure and tune the loop is shown below for a sensor type of
contacting or electrode-less conductivity.
PID Function
Edit Range
Default Setting
Set Algorithm
ISA or Velocity
ISA
Set Full-Scale
0 to 5000 µS/cm
2000 µS/cm (Do not change)
Set Zero-Scale
0 to 5000 µS/cm
0 µS/cm (Do not change)
Set Setpoint
0 to 5000 µS/cm
1000 µS/cm
Set Proportional Gain
–99.99 to +99.99
0.00 (+ is direct action, – is reverse action)
Set Integral Gain
0.00 to 50.00 reps/min
0.00 reps/min
Set Derivative Gain
0.00 to 10.00 seconds
0.00 seconds
Set Transit Time
0 to 9999 seconds
0 seconds
Set Manual Reset
0.0% to 100%
0.0%
Manual Mode
Control: 0.0% to 100%
0.0% (Process value is displayed)
When the configuration and tuning settings are made, select PID as the Parameter for current loop 1 or current
loop 2.
Integral gain can be disabled by entering “0.00” to provide only PD controller action.
To quickly get to the PID controller set point for fine tuning, press the ENTER and RIGHT ARROW KEYS at the
same time from a measure screen. This feature is present only when the personality module installed in the
AquaPro is pH, contacting conductivity or toroidal conductivity.