Pixsys ATR 401, User Manual, Page: 22 / 124

22 ATR401 - User manual
Updating Memory Card
To update the memory card values, follow the procedure described in the
fi rst method, setting display 2 to

so as not to load the parameters on
controller
1
.
Enter confi guration level by password and change at least one parameter
(display will start fl ashing). Exiting confi guration mode, the settings will be
automatically saved on Memory card.
9
LATCH ON Functions (only AI1)
For use with input

(potentiometer 6 KΩ) and

(potentiometer
150 KΩ) and with linear input (0…10 V, 0...40 mV, 0/4…20 mA), it is possible
to associate start value of the scale (parameter 6

) to the minimum
position of the sensor and value of the scale end (parameter 7

) to the
maximum position of the sensor (parameter 8

confi gured as

).
It is also possible to fi x the point in which the controller will display 0 (however
keeping the scale range between

and

) using the “virtual zero”
option by setting

or

in parameter 8

If you set

the virtual zero will reset after each activation of the device;
if you set

the virtual zero remains fi xed once tuned.
To use the LATCH ON function, fi rst choose the selected option on parameter

2
Then refer to the following table for the calibration procedure:
Press Display Do
1
FNC
Exit parameters confi guration.
Display 2 visualizes writing

Place the sensor on minimum
operating value (corresponding
to

2
Store value on minimum.
Display shows

Place sensor on maximum
operating value (corresponding
to

).
3
Store value on max. Display
shows

To exit standard proceeding
press
FNC
.
For “virtual zero” setting, place
the sensor to zero point.
1 If on activation the controller does not display

it means no data have been saved on the
memory card, but it is possible to update values.
2
The tuning procedure starts by exiting the confi guration after changing the parameter.