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Amprobe THWD-3 User Manual

Amprobe THWD-3
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User Manual
THWD-3 and TH-3
Relative Humidity and
Temperature Meters
For detailed specifications and ordering info go to www.TestEquipmentDepot.com
For detailed specifications and ordering info go to www.TestEquipmentDepot.com
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Amprobe THWD-3 Specifications

General IconGeneral
TypeThermo-Hygrometer
Humidity Range0 to 100 %RH
Humidity Accuracy±3 %RH
DisplayLCD
Power Supply9V battery
Dew PointYes
Wet BulbYes
Data HoldYes
Min/MaxYes
Resolution0.1°F/°C, 0.1% RH
Temperature Accuracy±1.8 °F (±1 °C)
Dew Point Temperature Range-4°F to 140°F (-20°C to 60°C)
Response TimeApprox. 60 seconds

Summary

Safety Information

Standards Compliance

Meter designed and tested according to EN50081-2 and EN50082-2 standards.

Operating Instructions

Power-Up

Instructions for turning the Humidity/Temperature meter ON or OFF.

Selecting Temperature Units

How to change temperature scale between Celsius (°C) and Fahrenheit (°F).

Data-Hold Operation

Freezing the current measurement reading on the display.

Relative Operation (TH-3 only)

Memorizing a present reading and displaying the difference with new readings.

MIN/MAX Operation

Tracking and displaying the minimum and maximum measured values.

Dew Point and Wet Bulb Temperature Operation (THWD-3 only)

Displaying Temperature Modes

How to switch between ambient, dew point, and wet bulb temperature displays.

Auto Power Off

Low Battery Condition

Wet Bulb Temperature Readings (TH-3)

Warranty and Repair

Limited Warranty

Covers material and workmanship defects for 1 year; excludes fuses, batteries, and misuse.

Repair Process

Details required information and payment methods for warranty and non-warranty repairs.

Specifications

General Specifications

Details operating conditions, dimensions, weight, battery life, and accessories.

Humidity Measurement

Specifies range, accuracy, temperature coefficient, hysteresis, and resolution for humidity.

Temperature Measurement

Specifies range and accuracy for temperature measurements.

Wet Bulb and Dew Point Specifications

Details range, accuracy, and response time for wet bulb and dew point measurements.

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