Page 8 of 16
AT400 User Manual
Rev 2.0
Jan. 05
-201
7
SPECIFICATIONS
Sensors:
Air Velocity sensor:
Metal rotating vane 1” or 2 ¾”
Temperature (TAT420):
PT100 RTD
Range:
Air Velocity: 1” Probe:
300-6890 FPM (1.5-35 MPS)
2 ¾” Probe:
50-7800 FPM (0.2-40 MPS)
Temperature (TAT420):
-4
˚
to 176
˚
F (-20
˚
to 80
˚
C)
Accuracy:
Air Velocity Probes:
2 ¾” Probe: ±1%+1 digit
1” Probe: ±0.5% full scale +0.75% r 1 digit
Temperature Probe:
±1.0
˚
C (TAT420)
Transmitter Air Velocity:
± 0.02 mA
Transmitter Temperature:
± 0.10 mA (TAT420)
Response Time:
Air Velocity:
2 second average and update
Temperature (TAT420):
Approximately 60 seconds
Analog Outputs (separate and concurrent):
Air Velocity:
0-1V, 0-5V and 4-20mA represent 0-6800FPM (0-35MPS) for
the 1” probe and 0-7800FPM (0-40MPS) for the 2 ¾”
probe
Temperature (TAT420):
0-1V, 0-5V and 4-20mA represent -4 to 176
˚
F (-20
˚
to 80
˚
C)
Operating Range:
-4
˚
to 176
˚
F (transmitter)
-
22
˚
to 212
˚
F (probe heads)
Power Supplies:
120 or 220VAC, 50-60Hz, also
10-30VDC
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.com
1.800.561.8187
