PART TWO - INSTALLATION
SECTION 3 - ELECTRICAL CONNECTIONS
Rev. 6-501
Model P53 pH/ORP Analyzer (universal-mount 1/2 DIN)
25
☞
See Figure 2-5 or 2-6 and connect the sensor (or intercon-
nect) cable wires to appropriate terminals on TB1, matching
colors as indicated.
NOTE:
For GLI Differential sensors that have two shield
wires, always connect the outer shield to an earth
ground terminal and the inner shield to the “shield”
terminal.
16 18
14
13
Y
EL
L
O
W
B
LA
C
K
W
H
IT
E
R
ED
G
R
E
EN
SH
IE
L
D
TB1
20 22
A
C
TI
V
E
R
E
F
G
N
D
TEM
P
TEM
P
FIGURE 2-5 Connecting GLI Differential
Technique Sensor to Analyzers with
“B” Prefix Serial Number
FIGURE 2-6 Connecting GLI Differential
Technique Sensor to Analyzers with
“A” or No Letter Prefix Serial Number
3.2 Conventional
Combination Electrode
The electrode must be within 100 ft./30 m of analyzer (985
ft./300 m for electrode with preamp). See Figures 2-7 or 2-8
and directly connect electrode’s coaxial cable to analyzer.
1.
Connect the electrode’s reference signal -- braided
shield wire of coaxial cable (black insulated wire for GLI
electrode) -- to Terminal 20 (REF) on TB1.
2.
Connect the electrode’s active signal -- center wire of
coaxial cable (clear insulated wire for GLI electrode) --
to Terminal 22 (ACTIVE) on TB1.
16 18
14
13
Y
ELLO
W
BL
A
C
K
WH
IT
E
RE
D
G
R
EEN
S
H
IELD
TB1
20 22
AC
T
IVE
RE
F
GN
D
TEM
P
TEM
P
FIGURE 2-7 Connecting Conventional
Combination Electrode to Analyzers with
“B” Prefix Serial Number
FIGURE 2-8 Connecting Conventional
Combination Electrode to Analyzers with
“A” or No Letter Prefix Serial Number
