1450 First Ave.
Page 3 of 12
Chippewa Falls, WI 54729
(800) 283-1141 or (715) 723-1141
Fax: (715) 723-7890
DTA4000 User Manual
Pacer Instruments, Inc
Rev 1.0
www.pacer-instruments.com
11-Aug-2007
Phone: 1-800-283-1141
INTRODUCTION
Pacer’s model DTA4000 digital thermometer-anemometer is a versatile instrument for measuring and logging
air velocity and temperature of airflow from HVAC ducts or process air flow. Included are an RS232C output
port with 9-pin serial cable and an analog output with cable.
The heavy, all metal air velocity probe can be used for airstreams which have a wide range of humidity,
temperature and contaminants without compromising accuracy. The temperature sensor is a platinum resistance
element (RTD).
Features of the air velocity probe include choice of diameters, custom cable lengths, tolerance of temperatures
up to 210ºF (98.9ºC), and durability. Optional special-purpose temperature-only probes may be purchased from
factory.
SECTION 1 - SPECIFICATIONS
Range:
APT275 probe:
40 – 7800 FPM (0.2 - 40.0 MPS)
APT100 probe:
60 – 6800 FPM (0.3 – 35.0 MPS
Temperature:
-22º to 212ºF (-30º to 100ºC)
Temperature-only probes (optional):
-100º to 575
˚
F (-100º to 300ºC)
Accuracy:
Air Velocity:
±1.0% of reading ±1 digit
Temperature:
±0.2% of Reading ±1 digit
Resolution:
Air Velocity:
1 FPM or 0.01 MPS
Temperature:
0.2
º
F or 0.1
º
C
Response time:
Temperature:
Approximately 60 seconds
Operating temperature:
Instrument:
32º to 125ºF (0º to 50
º
C)
Air velocity probe:
-4
º
to 210ºF (-20
º
to 98.9
º
C)
Power supply:
9V alkaline battery (optional 9V
NiMH battery with charger)
Battery life:
Approximately 30 hours
Battery check:
Automatic low battery display
Data acquisition:
Storage capacity up to 999 double measurements of temperature and air velocity
with manual “SAVE”.
Data link:
Standard RS-232C at 1200 baud, including handshake signals CTS and RTS.
Display:
0.5” LCD, 4 digits
Weight:
21.9 ounces with probe
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