Philips M3015A - Block Diagram of the Mainstream CO 2 Measurement

Mainstream CO
2
Measurement
Introduction to the Instrument
59
Block Diagram of the Mainstream CO
2
measurement
COUNTERS
MICRO
-
PROCESSOR
OPTO-
COUPLER
EEPROM
DUAL
SL0PE
A/D
AZ PULSE
MONOFLOP
MOTOR
PHASE
COMPARATOR
POSITION
PULSE
AMPLIFIER
A/D
HEATER
CONTROL
AMPLIFIER
MOTOR
DRIVE
BIAS
REGULATION
CO INPUT
AMPLIFIER
2
IR SOURCE
IR
DETECTOR
DRIVE
COIL
SENSE
COIL
Temp
SENSOR
HEATER
GAS
CO MODULE
2
TRANSDUCER M1460A