Agilent Technologies G1330B - ALS Thermostat Control and Electronics

14
Theory of Operation
ALS Thermostat Control and Electronics
ALS Thermostat Control and Electronics
The ASM board of the autosampler module provides all control signals for
the ALS thermostat (e.g., temperature setting) and receives the sensor signals
from the temperature and fan sensors.
The TCA board controls the internal assemblies in the ALS thermostat. This
chapter describes the electronics of the TCA board.
Figure 3
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TCA Board
ASM Board
Peltier
Assembly A
Peltier
Assembly B
Peltier
Assemblies
C + D
Temperatur Sensor
Fan 1
1
2
2
3
4
5
3
4
Primary Board
Bridge Rectifier
+ 36 V
Line Voltage