7
NT539
1MN0143 REV. 0
1)
FAULT (red) LED
11)
Led/Relay test button
2)
FAN (yellow) LED
12)
2)
Display mode selection button
3)
ALARM (red) LED
13)
UP key
4)
TRIP (red) LED
14)
DOWN key
5)
3-digit temperature display
15)
3-digit channel display
6)
Scan mode selection (yellow) LED
16)
TR.3 (red) LED
7)
Auto mode selection (green) LED
17)
Enter/Reset button
8)
Man mode selection (yellow) LED
18)
TR.2 (red) LED
9)
T-max mode selection (red) LED
19)
Programming / Setting button
10) Control unit series
20)
TR.1 (red) LED
FRONT PANEL
19
20
18 17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
