Funzione Latch On - Pixsys ATR144 User Manual

8.10

Funzione LATCH ON

For use with input pot. and with linear input (0..10 V, 0..40 mV,
0/4..20 mA) t is possible to associate start value of the scale
(par. 4 L.L. i . 1 ) to the minimum position of the sensor and value
of the scale end (par. 5 u.L. i . 1 ) to the maximum position of the
sensor (par. 10 Ltc. 1 configured as stndr).
It is also possible to fix the point in which the controller will
display 0 (however keeping the scale range between L.L. i . 1
and u.L. i . 1) using the "virtual zero" option by selectin u.0.sto.
or u.0.t.on. on par. 10 Ltc. 1 . Selecting u.0.t.on. the virtual zero
must be reset at each restart; selecting u.0.sto. the virtual
zero will remain fixed once calibrated. To use the LATCH ON
function, configure the par. Ltc. 1 .
Then refer to the following table for the calibration procedure:
Press Display
Exit parameters
1 FNC configuration. Display 2
visualizes writing Latc.
Store value on

2 minimum.
Display shows Low.
Store value on max.

3
Display shows HiGh.
Set virtual zero. Display
shows zero.
If "Virtual zero at
FNC
4
start"is selected, point
4 must be repeated at
each starting.
28 - ATR144 - User manual
Do
Place the sensor on
minimum operating
value (corresponding
to L.L. i . 1 )
Place sensor on
maximum operating
value (corresponding to
u.L. i . 1 ).
To exit standard
proceeding press SET.
For "virtual zero" setting,
place the sensor to zero
point.
To exit procedure press
SET.