Det-Tronics R8471NH34001,2,3 Single Channel Gas Controller, NH3 - Manual (Page 3)

Section I
General Information
DESCRIPTION
The R8471D, R8471F and R8471G Gas Controllers
are designed for use with Det-Tronics Electrochemical
Sensors for the detection of specific toxic gases in
the atmosphere. Sensor/controller combinations are
available for the detection of Chlorine, Sulfur Dioxide,
and Nitrogen Dioxide. Refer to Table 1 for details.
The single channel, rack mounted controller
provides a continuous reading of the sensor input.
Controller response includes actuation of solid state
or optional relay outputs for direct control of field
response devices, a full array of faceplate indicators,
as well as an optional 4 to 20 milliampere output for
transmitting system information to other equipment.
Three independent alarm outputs with field selectable
setpoints are provided.
FEATURES
• Digital display, bar graph display, and high intensity
LEDs indicate important system status information.
• Three independent alarm outputs with field
selectable setpoints.
• Base model is furnished with solid state alarm and
fault outputs.
• Premium model is furnished with relay outputs and a
4 to 20 ma output.
• Current output is selectable for isolated/non-isolated
operation.
• Microprocessor based controller is easily field
programmable.
• Rack compatible with Det-Tronics R7400 Series
flame controllers and other R8471 Series gas
controllers.
INSTRUCTIONS
Toxic Gas Controllers
R8471D Chlorine
R8471F Sulfur Dioxide
R8471G Nitrogen Dioxide
1.1 © Detector Electronics Corporation 2007 8/07 95-8529
Gas Detected Range Controller Sensor
Chlorine 0 - 10 R8471D C7067E
Sulfur Dioxide 0 - 100 R8471F C7068E
Nitrogen Dioxide 0 - 20 R8471G C7069E
Table 1—Controllers and Sensors for Detection of Toxic Gases