Functional Description - ProMinent DULCOMETER D2C Operating Instructions Manual

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Functional Description

NOTE
Please refer to the description of the operating menu for a detailed description of the
individual characteristics of the DULCOMETER
4.1 Operating Menu
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The DULCOMETER
preset and can be changed in the complete operating menu.
The controller is delivered with a restricted operating menu so that the D2C controller can be used
effectively in many applications from the very onset. If adaptations prove to be necessary, all relevant
parameters can then be accessed by switching over to the complete operating menu.
4.2 Access Code
Access to the setting menu can be prevented by setting up an access code. The D2C controller is supplied
with the access code 5000 which permits free access to the setting menu. The calibration menu remains
freely accessible even when access to the setting menu is blocked by the code.
4.3 Control
The D2C can operate as a proportional controller or as a PID controller - dependent on the device version
(see identity code) and the setting.
The controlled variable is recalculated every second. Control procedures which require rapid correction of
setpoint deviations (less than approx. 30 seconds) cannot be processed with this controller. The solenoid
valve control (pulse on-time) must take account of the cycle times.
The control function (reference variable output) can be switched off through the pause function and the
water control input. The calculation of the regulated variable starts again with the cessation of the "pause"
after expiry of the adjustable delay time "td". No fault treatment is performed with active "pause" function.
4.4 Fault messages
Faults to be acknowledged are shown in the permanent displays 1, 3 and 4 by the symbol " ". The
corresponding fault messages and notes are shown in the permanent display 2. Faults/notes continuing
after acknowledgement are shown alternatively. Faults automatically remedied throught changing operating
conditions are removed from the permanent display without necessitating acknowledgement. Chapter 11
includes an overview of fault messages and causes.
D2C controller permits settings to be made in two different menus. All values are
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D2C controller!
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