www.Amprobe.com
Amprobe® Test Tools
Data Sheet
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THWD-5
Relative Humidity,
Temperature Meter with
Dew Point, Wet Bulb and
Flexible Probe
The THWD-5 psychrometer is a microprocessor-based tester
designed for HVAC and Plant Maintenance engineers and
technicians. Easy and quick access to Wet bulb and Dew point
values as well as Relative Humidity and Temperature. The
THWD-5 is equipped with an extended probe for easy target
access, a large dual LCD display, and is tripod mountable.
Four measurements in one meter ■
Relative Humidity, Temperature, Dew Point and Wet Bulb ■
Extended probe for easy target access ■
Large digital dual display with backlight ■
Measure both relative humidity and temperature together ■
Temperature in °C or °F, front panel selectable ■
0.1 degree resolution for temperature ■
Minimum and Maximum measurements stored ■
Data Hold to freeze last measurement reading ■
Tripod mountable ■
Includes deluxe hard carrying case, batteries and users ■
manual
www.Amprobe.com
Amprobe® Test Tools
Data Sheet
©2008 Amprobe Test Tools. All rights reserved.
7/2008 3358058 Rev A
THWD-5 RH, Temperature, DP, WB with Flex Probe
Specifications
Range RH: 0 to 100%
Temperature: -10 to 60°C (14 to 140°F)
DP: -73.4 to 59.9°C (-100 to 139.8°F)
WB: -13.4 to 59.9°C (7.88 to 139.8°F)
Accuracy RH: ±3% from 10 to 90% at 25°C and ±5% for others
Temperature: ±0.6°C (±1°F)
Response Time 60 seconds
Resolution 0.1°C / 0.1°F
General Specifications
Battery Life 100 hours w/o backlight; 50 hours with backlight
Power Supply 4 X 1.5V AAA Size (NEDA 24G or IEC R03) battery
Low Battery Indication The “” is displayed when the battery voltage drops below the operating level
Dimension 175 x 69.85 x 33 mm (6.89 x 2.75 x 1.30 in.)
Weight 0.869 Kg (1.92 Lb)
Environmental
Operating Humidity 100% RH
Operating Temperature 0 to 50°C / 32 to122°F
Storage Temperature -20 to 60°C / -4 to140°F
Altitude 2000m, indoor operation
Agency Approvals & Certifications
- EMC EN61326-1 This product complies with requirements of the following European Community Directives:
89/336/EEC (Electromagnetic Compatibility) and 73/23/EEC (Low Voltage) as amended by 93/68/EEC
(CE Marking). However, electrical noise or intense electromagnetic fields in the vicinity of the equip-
ment may disturb the measurement circuit. Measuring instruments will also respond to unwanted sig-
nals that may be present within the measurement circuit. Users should exercise care and take appropri-
ate precautions to avoid misleading results when making measurements in the presence of electronic
interference.
INCLUDED & REPLACEMENT PARTS
Carrying Case
Instruction Manual
Amprobe® Test Tools Europe
Amprobe Test Tools Europe
Beha-Amprobe GmbH
In den Engematten 14
79286 Glottertal, Germany
Tel.: +49 (0) 7684 8009 - 0
Amprobe® Test Tools
website: www.Amprobe.com
email: info@amprobe.com
Everett, WA 98203
Tel: 877-AMPROBE
