HT instruments HT4000 - Manual (Page 13)

HT4000
EN - 12
6. TECHNICAL SPECIFICATIONS
6.1. CHARACTERISTICS
Accuracy is indicated as [%rdg + values] at 23°C ± 5°C <80%RH
Air speed measurement with external probe
Meas. units Range Resolution Accuracy
m/s 0.4
÷ 25
0.1
±(2%rdg+ 0.2)
Km/hr (kph) 1.5
÷ 90 ±(2%rdg+ 0.8)
mph 0.9
÷ 55
±(2%rdg+ 0.4)
Knots (kts) 0.8
÷ 48
ft/min (fpm) 79
÷ 4921
1
±(2%rdg+ 40)
Beaufort 1
÷ 10
- -
Airflow measurement with external probe
Meas. units Range Resolution Accuracy
CMM
0
÷ 9999
1
- -
CFM - -
Air humidity measurement with internal sensor
Meas. units Range Resolution Accuracy
%RH
20
÷ 80
0.1
±3.5%RH
<20, > 80
±5%RH
Air temperature measurement with internal sensor
Meas. units Range Resolution Accuracy
°C -20
÷ 60
0.1
±1°C
°F -4
÷ 140 ±1.8°F
Atmospheric pressure measurement with internal sensor
Meas. units Range Resolution Accuracy
hPa 350
÷ 1100
0.1
±2hPa
mmHg 263
÷ 825 ±1.5mmHg
inHg 10.3
÷ 32 ±0.1inHg