24 - ATR142 - User manual 
9  Timer operation
Timer operation is enabled by parameter 63 
t m r. f .
 To modify 
duration of counting time, follow the steps below: 
Press Effect Do
1 SET
Press until 
ti m .1
 or 
ti m .2
 visualized on 
display 1.
2
“
n
” and “
m
”
Digits on display 2 
changes.
Increase or decrease 
time value for the 
selected timer. 
Below a description of available options for Timer operation.
9.1  Single timer
This option enables one single Timer and the time is 
selectable by the operator. 
To achieve this operation set parameter 63 
t m r. f .
 as follows:
• 
s.tm.s.
 (Single Timer Seconds) time-basis in seconds (mm.ss)
• 
s.tm.m.
 (Single Timer Minutes) time-basis in minutes (hh.mm)
To start/stop the Timer, press FNC for 1s.
During the counting, Led 
R
 is On and display2 shows 
decrementing time. At elapsing of Timer, led 
R
 s w i t c h e s o ff 
and display 2 flashes, visualising the programmed time until 
any key is pressed.
Start/Stop of Timer is possibile also by digital input, selecting 
t.1.s.s.
 on parameter 50 
d Gt.i .
.
9.2  Dual timer
This option enables two Timers and the time is selectable by 
the operator: timers cannot be started at same time.
To achieve this operation set parameter 63   as follows:
• 
d.tm.s.
 (Double Timer Seconds) time-basis in seconds (mm.ss)
• 
d.tm.m.
 (Double Timer Minutes) time-basis in minutes (hh.mm)
Check the table below for the Start procedure: