HTA105
EN - 13
7. TECHNICAL SPECIFICATIONS
7.1. TECHNICAL CHARACTERISTICS
Accuracy is calculated as ±[%r value] at 25°C, <80%RH
Measurement of air speed through hot-wire sensor
Measuring unit
Range
Resolution Accuracy
m/s
0.10
20.00
0.01m/s
(5%rdg+ 0.03)
km/h
0.4
72.0
0.1km/h
ft/min
20
3937
1ft/min
MPH
0.3
44.7
0.1MPH
knots
0.2
39.0
0.1knots
m/s
= meters/second ;
km/h
= kilometers/hour ;
ft/min
= feet/minute ;
MPH
= miles/hour ;
knots
= nautical miles/hour
Measurement of air volumetric flow rate
Measuring unit
Range
Resolution Description
CMM
0
99999
0.001 ÷ 100
CMM = m
3
/min
CFM
CMM = ft
3
/min
CMM = air speed (m/s) * Area (m
2
) * 60 ; CFM = air speed (ft/min) * Area (ft
2
)
Measurement of air temperature
Measuring unit
Range
Resolution Accuracy
°C
0.0°C
50.0°C
0.1°C
1°C
°F
32.0°F
122.0°F
0.1°F
1.8°F
Measurement of air relative humidity
Range Resolution Accuracy
0%RH
100%RH
0.1%RH
5%RH
7.1.1. General characteristics
Mechanical characteristics
Size (L x W x H):
190 x 65 x 45mm (7 x 3 x 2in)
Length of telescopic probe:
from 13cm to 1m (from 5in to 3ft)
Length of telescopic probe cable:
170cm (6ft)
Diameter of telescopic probe:
12mm (0.4in)
Weight (battery included):
240g (8ounces)
Weight of telescopic probe:
165g (6ouces)
Air speed sensor:
hot-wire
Air temperature sensor:
digital sensor
Mechanical protection:
IP40
Power supply
Battery type:
1x9V alkaline battery type NEDA 1604 IEC 6FL22
Low battery indication:
symbol
“
”
on the display
Battery life:
approx. 15hours (backlight ON), approx. 20 hours
(backlight OFF)
Out-of-range indication:
“
OL.
”
symbol on the display
Auto Power OFF:
after 20 minutes' idling
Display
Main display:
4 LCD plus decimal point, sign, backlit
Secondary display:
4 LCD plus decimal point, sign, backlit
Updating speed:
approx. 0.8s
