Page 7 of 16
AT400 User Manual
Rev 2.0
Jan. 05
-201
7
INTRODUCTION
The AT400 and TAT420 air velocity transmitters supply
accurate air velocity and (TAT420) temperature data from a
building or process airflow on a continuous basis to a computer,
chart recorder, printer, and meter or control circuit.
Every instrument has terminals for both DC and AC power, and
0-1V, 0-5V and 4-20mA outputs. The outputs are concurrent and
can accept multiple wires (depending on the gauge used).
The heavy, all metal (except for the electronics pod) air probes
can be used for airstreams that have a wide range of humidity,
temperature and contaminants without compromising accuracy.
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