Myron L 729II - Manual (Page 37)

6. OEM INSTALLATION
b. Dual Display Models SPECIAL ORDER
These models allow simultaneous display of both Cond/TDS, RES
or pH/ORP and Temperature. They require two display harnesses.
The Cond/TDS, RES or pH/ORP display harness is part number
DH2DD without control feature, or part number DHDD with control
feature. The Temperature display harness is part number TPMH.
The DH2DD or DHDD is a “Y” harness that is connected from the
main CB to the Cond/TDS, RES or pH/ORP display while the other
end is connected to the Temperature Module as shown in figure
III.C.15.
The Temperature Module display harness TPMH connects to a
separate Temperature display, the same as in figure III.C.15.
33
MYRON L
COMPANY
TP/TPO - TEMPERATURE MODULE
7 pH/ZERO mV
PUSH TO TEST
SET POINT
#1 CONTROL
SET POINT #1
HYSTERESIS
RIGHT INC
LEFT DEC
SPAN (GAIN)
PUSH TO TEST
PANEL MOUNTED DISPLAY
REAR VIEW
Figure III.C.15
CHS GND
UP
}
FUSE*
115/
230
PWR C GD NC NO CM
BK WT RD GN NU R- R+
3S
PA
RA
DEC
SPC
Main CB Assembly
0-10VDC
OUTPUT
TRANSFORMER
FS ZERO DIS SP2 HYS2
DISPLAY CONNECTION
DISPLAY
SELECT
INC
INC
DEC DEC
TEMP
CONTROL
HARNESS
CONNECT
MAIN
CIRCUIT
BOARD
DISPLAY
HARNESS
HERE
JUMPER
CONNECT
FRONT
PANEL
DISPLAY
HARNESS
(TPMH)
HERE
TEMP
SENSOR
(-)
(+)
BRN
BLU
BR BL OR
-
+ +
0-5VDC
-
OR
COND/TDS , RES or pH/ORP
DISPLAY
DISPLAY CONNECTION
TEMPERATURE
DISPLAY
REMOVE T
O INST
ALL
SECOND RELA
Y
SPC
pH
CONFIGURATION
MODULE
721 726
722 727
723 728
724 729
DO NOT
ADJUST
HYS1 SP1
SP
AN
ZERO
ORP ZERO
DIS
INC
ZERO SPAN
DISPLAY CONNECTION