Hach-Lange SI794 P User Manual - Manual (Page 11)

11
Overview of si794 P
1
2
3
E
D
C
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
pH / mV /
temp
input
HOLD
input
Control
input
Output 1
Output 2
Alarm
Clean
Power
Glass
electrode
Reference
electrode
Auxiliary
electrode
RTD
RTD
Shield
ISFET
+3V
ISFET
-3V
HOLD
HOLD/
CONTROL
CONTROL
+ Output 1
– Output 1/2
+ Output 2
Relay 1
Relay 1/2
Relay 2
Alarm
Alarm
Clean / PSet 2
Clean / PSet 2
Power
Power
R1
R2
± 3 V
for ISFET
sensor