Specifications
23
Time Constant (all models):
Intervals:
1 sec, 2 sec, 5 sec, 10 sec, 15 sec, 20 sec
Response Time (all models):
Velocity:
200 msec
Temperature:
2 minutes (to 66% of final value)
Pressure:
0.1 msec
Humidity:
< 1 minute (to 66% of final value)
External Meter Dimensions (all models):
4.2 in.
×
7.2 in.
×
1.5 in. (10.7 cm
×
18.3 cm
×
3.8 cm)
Meter Probe Dimensions (all models):
Probe Length:
40 inches (101.6 cm)
Probe Diameter of Tip:
0.276 inches (7.01 mm)
Probe Diameter of Base: 0.395 inches (10.03 mm)
Articulating Probe Dimensions (Models 8384A/8385A/8386A):
Articulating Section Length:
6.4 inches (16.26 cm)
Diameter of Articulating Knuckle: 0.372 inches (9.44 mm)
Meter Weight (all models):
Weight With Batteries:
1.2 lbs (0.54 kg)
Meter Display Dimensions (all models):
Primary Display:
4-digit LCD, 0.6 inches (15 mm) digit height
Secondary Display: 3.5-digit LCD, 0.3 inches (8 mm) digit height
Power Requirements (all models):
Four AA-size batteries (included) or AC adapter (optional) 7.2 VDC,
300 mA, 4-18 watts (input voltage and frequency vary depending on which
adapter is used)
1
Temperature compensated over an air temperature range of 40 to 150°F (5 to 65°C).
2
The accuracy statement of ±3.0% of reading or ±3 ft/min (±0.015 m/s), whichever is greater,
begins at 30 ft/min through 9999 ft/min (0.15 m/s through 50 m/s).
3
Pressure velocity measurements are not recommended below 1000 ft/min (5 m/s) and are
best suited to velocities over 2000 ft/min. Range can vary depending on barometric
pressure.
4
Accuracy is a function of converting pressure to velocity. Conversion accuracy improves
when actual pressure values increase.
5
Accuracy with instrument case at 77°F (25°C), add uncertainty of 0.05°F/°F (0.03°C/°C) for
change in instrument temperature.
6
Accuracy with probe at 77°F (25°C). Add uncertainty of 0.1% RH/°F (0.2% RH/°C) for
change in probe temperature. Includes 1% hysteresis.
7
Overpressure range = 7 psi (190 in. H
2
O, 360 mmHg, 48 kPa).
