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MODEL 54eA SECTION 3.0
WIRING
FIGURE 3-6. 499ACL-01 sensor with standard cable and 399-14 pH sensor having internal preamplifier.
FIGURE 3-7. 499ACL-01 sensor with standard cable and 399-09-62 pH without internal preamplifier.
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.
4054eA05 A
DWG. NO. REV.
4054eA03 A