M&C TechGroup KS 2.Ex Operator's manual - Manual (Page 12)

12
Gas sampling and conditioning technology 5-5.3 ME
9.5 ADJUSTMENT OF THE SENSOR TYPE KS2.EX
Figure 4 Electronic KFA6-SR2-Ex1.W (left) and terminal box KS2.Ex respectively WE77/Ex1

Turn the potentiometer (figure 4) to the left until the LED is OFF.

Turn the potentiometer slowly to the right. After the LED is ON, turn the potentiometer for another
1,5 rotations to the right.
1
-
2
+
3
KFA6
1 2 3
Sensor KS2.Ex
- +
Switching capacity AC 253V/2A
S1
S2
S3
14
N
15
L
Power supply
230V 50Hz

1W
13
7 8 9
Output
MC NO NC
Figure 5 Wiring diagram KS2.Ex and KFA6-SR2-Ex1.W respectively WE77/Ex1
Bridge
Left
Right
Electronics
WE77/Ex1
Poti
Sensor
1
-
2
+
3 4 5 6
7
MC
8
NC
9
NO
10
PE
11
L
12
N
WE77/Ex1
Power supply
230V 50Hz
3,5VA
Bridge
1 2 3
Sensor KS2/Ex
- +
AC 250V/4A/500VA
DC 229V/0,1A; 60V/ 0,6A; 24V/4A