Amprobe THWD-3 manual
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Amprobe THWD-3 is a dual display, relative humidity, and temperature meter that provides accurate and reliable measurements for various applications. Its extended measurement range from 0% to 100% RH and -4 °F to 140 °F makes it suitable for HVAC, indoor air quality, and environmental monitoring. Features like data hold, min/max, dew point, and wet bulb calculations enhance its versatility. The long shaft with a sensor and protective cover allows easy probing into hard-to-reach areas like air ducts.
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Data Sheet
THWD-3
Relative Humidity
Temperature Meter
■
Dual display
■
Extended probe stem to easily access air ducts
■
Dew Point
■
Wet Bulb
■
Min/Max readings
■
Data Hold
■
Capacitive sensor with protective cover
■
Auto Power off
■
Carrying Case
■
One year warranty
The THWD-3 uses a precision capacitance sensor to deliver accurate performance with long term stability. This high accuracy instrument measures the full range of relative humidity from 0% to 100% and features an exceptionally wide ambient temperature measurement range from
-20 °C (-4 °F) to 60 °C (140 °F). The sensor is mounted on a long shaft extending from the top surface of the unit, making probing into ductwork and hard to reach areas more easy. The large LCD displays two measurements simultaneously with a full range of display options including Hold, Min, Max, Dew Point (DP) and Wet Bulb
(WB). The THWD-3 comes with soft carrying case, sensor cover, battery and manual.
Included Accessories
Carrying case, sensor cover, battery (installed), users manual
Amprobe® Test Tools www.Amprobe.com
THWD-3 Relative Humidity Temperature Meter
General Specifications
Display
Operating Conditions:
Storage Conditions:
Altitude
Sample rate
Battery
Battery life
Dimension
Weight
Dual display
0 °C to 40 °C; <80 % RH
-10 °C to 60 °C; <70 % RH
Up to 2000 meters
2.5 times per second
9 V Battery, NEDA 1604 or JIS 006P or IEC6F22
85-hours continuous (with alkaline battery)
240 x 54 x 34 mm (9.5 x 2.1 x 1.3 in.)
Approximately 180 g (6.4 oz.)
Technical Specifications
Function
Measurement Ranges
Humidity
Temperature Coefficient:
Resolution
Temperature (Dry Bulb)
Dew Point (DP)
Web Bulb (WB)
Resolution
Response time (in slowly moving air)
Humidity
Temperature
Range
0 % RH to 100 % RH
10 % RH to 90 % RH
<10 % RH, >90 % RH
0.1 %RH
-20 °C to 60 °C
-4 °F to -140 °F
0 °C to 55 °C
32 °F to 131 °F
0 °C to 55 °C
32 °F to 131 °F
0.1 °C/0.1 °F
180 sec
10 sec
Data Sheet
Accuracy
±3 % RH @ 23 °C
±5 % RH @ 23 °C
0.1 x specified accuracy/ °C <23 °C, >23 °C
±0.8 °C
±1.6 °F
±0.8 °C
±1.6 °F
±0.8 °C
±1.6 °F
Amprobe® Test Tools website: www.Amprobe.com email: [email protected]
Everett, WA 98203
Tel: 877-AMPROBE
Amprobe® Test Tools
Amprobe® Test Tools Europe
In den Engematten 14
79286 Glottertal, Germany
Tel.: +49 (0) 7684 8009 - 0
©2015 Amprobe Test Tools. All rights reserved.
3/2015 3052169 EN-NP Rev B www.Amprobe.com
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