873RS-AIPFGZ FOXBORO

Description

873RS-AIPFGZ FOXBORO Resistivity Analyzer Sensor

Product Dimensions：

Sensor Calibration
871CC “resistivity” sensors are manufactured to be ±2% accurate of their nominal 0.1 cm-1 cell
value. These sensors are also tested and labeled with their individual cell factors (CF) as well as the
true temperature at which a thermistor is exactly 100 kΩ or RTD is 100 Ω. The overall system
accuracy may be improved by entering the individual sensor parameters into the analyzer.
“Entering a tCF Value” on page 71 and “Entering a CF Value” on page 73 are the pertinent
procedures to follow to calibrate the 873RS analyzer for the individual sensor being used.
Looking for More Information?
For more detailed information, refer to the following sections of this manual:
For installation information, refer to “Installation” on page 19. For dimensional information,
refer to DP 611-163.
For detailed explanation of the controls and indicators, refer to “Operation” on page 27.
For detailed configuration instructions, refer to “Configuration” on page 31.
For detailed calibration instructions, refer to “Calibration” on page 63.
If you need additional help, please call the Electrochemical Service Center at 1-508-549-4730 in
the U.S.A. or call your local Invensys representative
General Description
The 873RS Resistivity Analyzer interprets the resistivity of aqueous solutions. Its measurement
display may be read in either megohm-cm (MΩ•cm), or percent (%). Solution temperature is also
measured by the 873RS for automatic temperature compensation and may be displayed whenever
the user wants.
It provides an isolated output signal proportional to the measurement for transmission to an
external receiver. The general purpose panel-mounted analyzer transmits one output signal; the
field-mounted (NEMA 4X enclosure) analyzers transmits two output signals.
Instrument Features
Described below are some of the features of the 873RS Electrochemical Analyzer:
♦ Plastic or Metal Enclosure
♦ Dual Sensor Input
♦ Dual Alarms
♦ Dual Analog Outputs on Metal Enclosure
♦ EEPROM Memory
♦ Instrument Security Code
♦ Hazardous Area Classification, Metal Enclosure only
♦ Front Panel Display
♦ Front Panel Keypad

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