Table of Contents
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Installation of Electrical Components
• Electrical Installation
• Wiring Verification
• 4-20 mA Output Wiring
• RS-232 and RS-485 Cable Connections
• Alarm Contact Connections
• 0-5 Volt Output Wiring
• Pinout Reference
• Status LEDs and Alarms
• Connecting to the Power Line
Electrical Installation
1.
connect the 4-to-20 mA analog output and alarm contacts from the ana-
lyzer to your recording equipment. Refer to Figure 3-9.
or, connect the 0-5 volt analog output and alarm.
0-5 Volt Output Wiring
VouT+
VouT-
2.
connect the Rs-232 or Rs-485 serial communication from the analyzer to
the Pc being used for your parameter setup. see Figures 3-10a and b.
3.
insert the Rs-485 termination plug into the Rs-485 ouT connection if
communicating with one analyzer or into the last in a chain.
4.
connect the 24 VDc power to the analyzer.
Wiring Verification
1. Total RS-485 cable length should not exceed 4000 feet (1219 meters). Cable
should be low capacitance type for use in RS-485 applications (nominal
impedance of 120 ohms, shielded twisted pairs). A good example is
Belden 9841 in 2-wire applications and Belden 9842 in 4-wire applica-
tions.
2. Install the terminator plug (80544SE) in the RS-485 OUT position of the
last controller in networks with both single and multiple CG1100s.
3. Cable shields should be tied to the chassis at each CG1100. If this is not
possible (e.g., ground loop), tie the shield at the PC or DCS to the chassis
and all other shields to earth through a 0.1uF @ 500 V capacitor.
Pin 1
Pin 2
Installation | 3-11
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Troubleshooting
