Status/Temp Board - Teledyne 6400A Instruction Manual

Sulfur dioxide analyzer
Table of Contents

Advertisement

TAI Model 6400A SO
Analyzer Operator Manual, 02164, Rev. G
2

9.3.4 Status/Temp Board

The Status/Temp Board is a multifunction board that:
1. Converts the resistance readings of the thermistors to voltages
2. Provides status output circuitry
3. Provides circuitry for contact closure inputs
4. Provides circuitry for display brown-out/reset at low line voltage
5. Provides sockets for voltage-to-current modules
9.3.4.1 Temperature Amplifier Section
The Status/Temp board (01086) is a multifunction board consisting of 4 thermistor amplifiers
that monitor:
1. IZS temperature
2. Reaction Cell temperature
3. Box temperature
4. Spare
The voltages of the thermistor and thermocouple amplifier outputs are brought out to test points
on the edge of the board. Refer to the schematic 01086 for details. The voltages can also be read
using the DIAGNOSTIC - SIGNAL I/O feature (see Table 9-4 for details).
Thermistor Temperature Amplifier Adjustments
The Status/Temp board has 3 thermistor temperature amplifiers:
1. Reaction Cell Temperature
2. IZS permeation tube heater
3. Box temperature readout
9-42

Advertisement

Table of Contents
loading

Table of Contents