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MODEL 54eA SECTION 3.0
WIRING
FIGURE 3-9. Free chlorine sensor with optimum EMI/RFI cable or
Variopol cable and 399-14 pH sensor having internal preamplifier.
FIGURE 3-8. Free chlorine sensor with optimum EMI/RFI cable or Variopol cable
and 399VP-09 pH sensor without internal preamplifier.
13
Although the blue wire is connect-
ed to a terminal labeled solution
ground, the blue wire does not
connect to a solution ground in the
sensor. The 399-14 sensor has no
solution ground. The blue wire,
instead, ties the preamplifier in the
sensor to instrument common.
DWG. NO. REV.
4054eA02 B
DWG. NO. REV.
4054eA06 A