PN 9000-280-VE, Rev B
About the Analyzer Electronics
Component
Function
General
• Connections to the analyzer are made through the
Wiring
board. The
Wiring
board is located on the right side in a sepa-
rate section of the analyzer.
• Analyzer wiring and customer wiring (power, I/O) are directly
connected to the main electronics.
• All connections can be plugged and headers are laser-printed
for easy matching.
• The configuration monitoring interface is RS-485 MODBUS
RTU.
I/O
All required I/O comes with the analyzer:
• Three (3) configurable 4–20 mA outputs
• Two (2) system alarm relays (Service and Data Valid)
• Three (3) configurable process alarm relays
• One (1) RS-485, 2-wire, MODBUS RTU interface (57.6K baud)
Current Outputs
There are three (3) current outputs on the WDG-V UOP Analyzer.
Refer to “Current Output Connections” in Chapter 2 for details.
Optional Remote Calibra-
tion Unit (RCU)
The RCU provides maximum confidence in the accuracy and
stability of all WDG combustion analyzers, by simplifying the cali-
bration/verification process. Unattended automatic or manual
gas sequence calibration is provided with hard-piped bottle-to-
analyzer connections to minimize time and labor costs.
Refer to “Remote Calibration Unit (RCU) Connections” in
Chapter 2 for details on these connection options.
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WDG-V UOP ATEX-IECEx Analyzer
