20 ATR171 - User manual 
Press Display Do
3
Store value on max.
Display shows 
Hi G h
.
To exit standard proceeding press 
FNC. For “virtual zero” setting, 
place the sensor to zero point.
4
SET
Set the virtual zero. Display shows 
ui rt.
 . N.B.: If 
u.0in.
 is selected, 
the procedure must be executed 
at each start
To exit procedure press FNC.
8.10   Timer  function
To enable a timer with time value selectable by the user, confi gurate parameter 60 
tMrf
 as follows:
• 
mm.ss
: Timer with time base in seconds (mm.ss);
• 
HH. m m
: Timer with time base in minutes (hh.mm).
To modify counting  time duration, follow the steps below: 
Press Display Do
1
SET
Press until 
tM r.
 is visualized on 
display 1.
2
Value on display 2 changes
Increase or decrease time value of 
selected Timer.
To start or stop timer press PRGM or act via digital input if parameter 72 
d Gt.i .
 is 
selected as 
t m r.i .
.
During counting led RUN is on and display 2 visualizes decrementing time.
At expiry of Timer led RUN turns off  and display 2 blinks showing  time value until 
a key is pressed.
8.11  Digital input functions (only for ATR171-11/12/14ABC)
Select chosen function on parameter 72 
d Gt.i .
 (par. 70 
op.mo.
, must be set on 
Co n t.
).
• 
st.st.
: Start of Pre-programmed cycle (See par. 8.7);
• 
rn.n.o.
 o 
rn.n.c.
: enables regulation;
• 
L.c.n.o.
 o 
L.c.n.c.
: (Hold Function) allows to lock sensors reading when digital 
input is active. It’s useful when measure oscillates on less signifi cant values. 
During hold phase display 2 blinks showing 
La t c.
.
• 
tune
: enable / desables Tuning by digital input if par. 24 
tune
 is set on 
Man.
.
• 
a.ma.i.
 o 
a.ma.c.
: switch from automatic to manual mode if parameter 71 
Au.Ma. 
is 
set on 
en .  
 or 
en.st.
.