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CIT 400
Menu level ALLG - unit parameter
Menu level contains general unit parameters.
Unit parameter - relay exchange
CHAn
With this menu, you can set the exchange of used relays if they reach a
defined value. The background of this function is a pump exchange in
order to achieve a regular pump load (capacity utilisation).
Standard: By changing the relays, both pumps will be activated on
reaching the next turn-on point. This function can be switched on and
off.
Option: The values 2, 3, 4, and OFF can be set. The value gives the
number of used relays for the changing.
Unit parameter - password setting
PAnr
This menu defines the unit password (PIN). Set the number by using the
arrow keys and confirm with Enter. To activate the password, use menu
"PAoF".
The default setting for the password is "5".
Unit parameter - default setting
LoAd
The unit’s factory default settings can be loaded by using this menu. In
order to execute this function, you should know the password (PIN). If
this function is selected, the unit will wait for PIN entry. The function will
not be executed until a correct entry of the password. The default set-
ting for the password is "5".
Please note that also the password is reset to default.
Menu level CAL - calibration
This level is for self-calibration of the analogue input to the lower and upper sensor signal
(4/20 mA). You can choose between single and double point calibration.
Calibration - adjusting signal input of offset
SIof
With this menu, you can adjust the zero point of the transmitter
(4 mA) to the applied sensor signal. To start the calibration, it is neces-
sary to enter the password. For this, the minimum output signal (output
of the min. measurement span of the sensor) must be applied to the
transmitter input.
Calibration - adjusting signal input of span
SISP
With this menu, you can adjust the final value of the measurement span
(20 mA) to the applied sensor signal. To start the calibration, it is nec-
essary to enter the password. For this, the maximum output signal (out-
put of the max. measurement span of the sensor) must be applied to
the transmitter input.
