CTI 062-00108, Installation And Operation Manual

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C T I 2552 Installation and O peration G uide
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each input 1-8 select either Temperature or Millivolt by turning each switch on or off. The "ON"
position on switch 2 corresponds to Temperature.
2.4.2 Selecting 3 Wire or 4 Wire Operation
Locate the 8 "3 wire/4 wire" jumpers corresponding to input channels 1 through 8. These jumpers are
located adjacent to the input terminal strip (see Figures 7 and 8). For each input channel, select 3 wire
mode by placing the jumper in the "3 wire" position or 4 wire mode by placing the jumper in the "4
wire" position. If 2 wire operation is desired, use the "4 wire" position.
2.4.3 Selecting 100 Ohm or 120 Ohm RTD Inputs
Locate DIP switch 1 (RTD Type Switches in Figure 8) on the 2552 circuit card and select either 100
or 120 type RTD for each of the eight inputs by turning each switch on or off. The "ON" position
corresponds to 100 Ohm platinum RTD input.