Watlow CAS - Manual (Page 35)

Installation
CAS User’s Guide 25
The next table shows the location of RC and RD on the analog input
board. (The analog input board is the upper board of the two-board set.)
A wire trace on the printed circuit board jumpers the RC position. When
you place a resistor in the RC position, cut the wire trace that connects
the two resistor terminals.
Scaling and Calibration
The CAS provides offset calibration for thermocouples and other fixed
ranges, and offset and span (gain) calibration for linear and pulse inputs.
(Offset and span calibration convert linear analog inputs into
engineering units using the Mx+B function.)
In order to scale linear input signals, you must:
1. Install appropriate scaling resistors.
2. Select the display format. The smallest possible range is
-.9999 to +3.0000; the largest possible range is -9999 to 30000.
3. Enter the appropriate scaling values for your process.
For more information about input scaling and input offset, see Setup
Channel Inputs in Chapter 4: Setup.
Channel # RC RD
1 R58 R42
2 R56 R40
3 R54 R38
4 R52 R36
5 R50 R34
6 R48 R32
7 R46 R30
8 R44 R28
9 R57 R41
10 R55 R39
11 R53 R37
12 R51 R35
13 R49 R33
14 R47 R31
15 R45 R29
16 R43 R27