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Page 36
OCF 6.1 Open Channel Flow Monitor
APPENDIX A - OPTIONS
EXTRA SENSOR CABLE - OPTION XC
Each Greyline level instrument includes 25 ft. (7.6 m) RG62AU coaxial cable. Additional RG62AU
coaxial cable and Cable Junction Box (Option JB2X) may be installed to extend cable up to 500 ft
(152m) as required during installation. No adjustment is required when the sensor cable is extended or
shortened. Use only RG62AU (or RG62U) coaxial cable which is available from Greyline Instruments
or your local distributor. Nominal impedance of RG62AU cable is 93 ohms.
Extended sensor cable maybe installed in metal or plastic conduit. Recommended installation with a
junction box is illustrated below:
JUNCTION BOX - OPTION JB2X
NEMA4X (IP66) polycarbonate Junction Box with terminal strips is available from Greyline
Instruments. Includes compression fittings for watertight c oaxial cable entries.
CORE
SHIELD
CORE
SHIELD
EXTENDED SENSOR CABLE TO
ELECTRONICS ENCLOSURE
-
.
MAX TOTAL CABLE LENGTH
500 ft (152m)
62
coaxial
RG AU
- CONDUIT RECOMMENDED FOR
MECHANICAL PROTECTION
TO SENSOR
62
RG AU COAXIAL
9
0
m
m
/
3
.5
4
"
6
0
m
m
/
2
.3
6
"
57 mm / 2.24"
90 mm / 3.54"
3.9 mm
0.15"
MOUNTING
(X4)
HOLES
JB2X
DIMENSIONS
END VIEW
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