Teledyne 6200T - Sulfides Analyzer - Manual (Page 263)

6200T Total Sulfur Analyzer Troubleshooting
Teledyen Analytical Instruments 263
12.7.2.1. Removing and Reinstalling the Sensor Module
Several of the procedures in this section either require the sensor module to be removed
from the instrument or are easier to perform if it has been removed.
To remove the Sensor Module:
1. Turn off the instrument power.
2. Open the top cover of the instrument:
 Remove the set screw located in the top, center of the rear panel.
 Remove the screws fastening the top cover to the unit (four per side).
 Lift the cover straight up.
3. Disconnect the sensor module pneumatic lines (refer to Figure 12-6
 Gas inlet line: 1/8” black Teflon line with stainless steel fitting.
 Gas outlet line: 1/4” black Teflon

line with brass fitting.
4. Disconnect all electrical wiring to the Sensor Module:
 UV lamp power supply wiring
 Shutter cabling
 Reaction cell thermistor wiring (yellow)
 Reaction cell heater wiring (red)
 UV detector wiring
 TEC power cable
 PMT wiring (connectors J5 & J6 on the PMT preamplifier PCA)
5. Remove the three sensor module mounting screws.
Sample
Chamber
PMT
Housing
Mounting
Screw
Mounting
Screw
Mounting
Screw
Figure 12-7: Sensor Module Mounting Screws
Follow the above steps in reverse order to reinstall the sensor module.