Teledyne 102E Electronic Operation, Sensor Module, SAMPLE CHAMBERUV Lamp, Pmt Housing, Rev A1

M102E/M501 TRS THEORY OF OPERATION

(Addendum to M101E Manual - P/N 04740 Rev A)

9.4. Electronic Operation

9.4.1. Sensor Module

This Section replaces Section 10.4.2 of the M101E Manual - P/N 04740 Rev A.

Electronically, the M102E sensor module is a group of components that: create the UV light that initiates the fluorescence reaction between SO2 and O3; sense the intensity of that fluorescence and generate various electronic signals needed by the analyzer to determine the SO2 concentration of the sample gas (see Section 9.1) and sense and control key environmental conditions such as the temperature of the sample gas and the PMT.

SAMPLE CHAMBERUV Lamp

Reaction Cell	Lamp Shutter Housing
	PMT Preamp PCA

Sample Gas Outlet

Sample Gas Inlet

Reference Detector

PMT Cooling System

PMT HOUSING

Figure 9-2: M102E Sensor Module

These components are divided into two significant subassemblies. The sample chamber and the PMT assembly.

•Figure 9-3 shows an exploded view of the sample chamber assembly

•Figure 9-5 shows an exploded view of the PMT Assembly

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