TROUBLESHOOTING - PIB DC VOLTAGE
ORP
OPEN - AP700
SHORTED - AP1400
M-S
15
Green
Black & White
(+)
(-)
ORP
POS - 2
POS - 1
BUZZER
OFF ----
ON -----
ADDRESS
A B Device
0 0 # 1
1 0 # 2
0 1 # 3
1 1 # 4
A
B
DBI
INTERFACE
Mechanical
Sensor
ENB
DIS
FLOW SENSOR
H - Temp
R - Temp Salinity
1 Amp FUSE
Salinity = 2.8
R Temp = 75
H Temp = 91
TEST POINTS
ORP
OPEN - AP700
SHORTED - AP1400
M-S
15
Green
Black & White
(+)
(-)
ORP
POS – 2
POS - 1
BUZZER
OFF ----
ON -----
ADDRESS
A B Device
0 0 # 1
1 0 # 2
0 1 # 3
1 1 # 4
A
B
DBI
INTERFACE
Mechanical
Sensor
ENB
DIS
FLOW SENSOR
H - Temp
R - Temp Salinity
1 Amp FUSE
Salinity = 2.8
R Temp = 75
H Temp = 91
TEST POINTS
19 VAC
VAC 1
VAC 2
120 mVDC
65 VAC
75 VAC
15 A
m
p F
U
S
E
+24 VDC
+5 VDC
COMMON
GROUN D
HEAT ER
RESTIN G
CELL ON
FLOW
SERVIC E
ORP
LOW SALT
+12 VDC
This test confirms that the Power Inter-
face Board (PIB) is taking the AC Volt-
age from the Transformer and converting
it to DC Voltage.
19 VAC
VAC 1
VAC 2
+24 VDC
+5 VDC
COMMON
+12 VDC
DCV
W
2000K
200K
20K
2K
h
FE
2
20
200
1000
200
750
PNP
NPN
OFF
200m
DCA
20m
200m
10A
200
ACV
200
µ
2000
µ
12
First Test:
Set the meter to 200 DCV or
higher. Put the leads on the
Common & +12 VDC test
points. The voltage should be
between 11.8 to 12.2.
If the voltage is outside the
above range, replace the PIB.
19 VAC
VAC 1
VAC 2
+24 VDC
+5 VDC
COMMON
+12 VDC
DCV
W
2000K
200K
20K
2K
h
FE
2
20
200
1000
200
750
PNP
NPN
OFF
200m
DCA
20m
200m
10A
200
ACV
200
µ
2000
µ
5
Second Test:
Set the meter to 200 DCV or
higher. Put the leads on the
Common & +5 VDC test points.
The voltage should be between
4.8 to 5.2.
If the voltage is outside the
above range, replace the PIB.
19
