Myron L 729II - Manual (Page 37)

33
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.
MYRON L
COMPANY
TP/TPO - TEMPERATURE MODULE
PANEL MOUNTED DISPLAY
REAR VIEW
Figure III.C.15
CHS GND
-121
2000µS
UP
}
HYS1 SP1 FS SW
FUSE*
115/
230
PWR
C GD NC NO CM
DIS
CAL
BK WT RD GN NU R- R+
3S
PA
RA
INC
DEC
SPC
Main CB Assembly
0-10VDC
OUTPUT
RANGE
MODULE
751 756
752 757
753 758
754 759
TRANSFORMER
FULL SCALE
PUSH TO TEST
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
DISPLAY CONNECTION
REMOVE T
O INST
ALL
SECOND RELA
Y
SPC
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.