Metex 2200R ORP Analyzer/Controller - Manual (Page 9)

Model 2200R Page 7
3.6 Sensor Connections; Combination Probe (P500 Series) Without Temperature Compensation
3.6.1 a) Both J42 jumpers located on the swing-out board must be in the down position
leaving the pin nearest to the top exposed. (Refer to Fig. 4)
c) Connect the active electrode (ring terminal) to the terminal post on the swing-
out board and connect the shield to the SH terminal of the terminal strip TB2.
d) Connect a 300 ohm resistor to the YL and BL terminals on TB2.
3.7 Combination Probe with Preamplifier
3.5.1 If the analyzer is mounted in such a position that the 10 ft. cable on the
combinational probe cannot be directly connected to the 2200R. An AquaMetrix 101
Series preamplifier is required. The pre-amplifier converts the signal so that it can
be transmitted up to 3000 feet, the same as the differential (R60) probe. When the
pre-amplifier is used the controller must be configured, as if you were using a
differential (R60) probe. (Refer to FIG. 5)