Table of Contents
Advertisement
Theory of Operation
width modulated (PWM) signal that is proportional to the gas
concentration on that specific range.
The PWM signal is passed through a low pass filter and is used to
drive the display and the 0-1 VDC output signal (0.8 – 1VDC for the
H
/Air range).
2
The calibration switch is a rotary switch and allows either the
percent of range signal or the output from the zero offset gain amplifiers
to be sent to the display.
Teledyne Analytical Instruments
Model 2750
18
Advertisement
Table of Contents
