Watlow CAS200 - Manual (Page 95)

CAS200 User’s Guide Chapter 5: Troubleshooting and Reconfiguring
Watlow Anafaze 83
Figure 5.6 shows the schematic for one single-ended sensor
input to the CAS200. See CAS200 Current Inputs on page
83 and CAS200 Voltage Inputs on page 84 for specific
instructions and resistor values for voltage and current
inputs.
Figure 5.6 CAS200 Input Circuit
CAS200 Current Inputs
For each current input on a CAS200 scanner, you must
install one resistor. The value of the resistor must be
correct for the expected input range. Install the resistor in
the listed resistor location.
Table 5.3 Resistor Values for CAS200
Current Inputs
Resistor tolerance: ± 0.1%
Input Range Resistor Value RD
0 - 10mA 6.0 Ω
0 - 20mA 3.0 Ω
IN +
RD
Analog
Input
Terminals
RC
Com
To CAS200
Circuitry
(Voltage only)
(Voltage and Current)
Measurement