User Guide

Teledyne API M100E Analyzer Operation Manual Theory Of Operation
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Figure 11-13: M100E Sample Chamber
11.4.2.2. SAMPLE CHAMBER HEATING CIRCUIT
In order to reduce temperature effects, the sample chamber is maintained at a constant 50°C, just above the
high end of the instrument’s operation temperature range. Two AC heaters, one embedded into the top of the
sample chamber, the other embedded directly below the reference detector’s light trap, provide the heat source.
These heaters operate off of the instrument’s main AC power and are controlled by the CPU through a power
relay on the relay board. A thermistor, also embedded in the bottom of the sample chamber, reports the cell’s
temperature to the CPU through the thermistor interface circuitry of the motherboard.
04515F DCN6048