Universal Enterprise DTH30 Installation Manual

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DTH30

INSTRUCTION MANUAL

Introduction

The DT H 30 Digital Psychrometer/Hygrometer allows you to ca r ry a
pocket-sized psychrometer everywhere. You can set cooling systems
at a specific superheat or subcooling temperatures, using actual wet
and dry bulb measurements and factory charts. This replaces the sling
psychrometer with an accurate and easy to use digital instrument.

Features include

• Measures ambient temperature in ˚F or ˚C

• Measures relative humidity 0 to 99.9% RH

• Calculates dew point and wet bulb temperatures

• MAX capture allows you to record and display maximum and
minimum values

• Auto power-off saves batteries

• Data hold and MIN/MAX allows you to review all measured values

Safety Notes

Before using this instrument, read all safety information carefully. In
this manual the word "WARNING" is used to indicate conditions
or actions that may pose physical hazards to the user. The word
"CAUTION" is used to indicate conditions or actions that may
damage this instrument.

International Symbols

C o n t rols and Indicators

1. ON/OFF - Power Switch: Turns the DT H 30 on and off.

2. HOLD - Data Hold: Freezes data input.

• “HLD” appears in upper right corner of display.

• View frozen data for any of these functions: C/F,
T d / W B T, MIN / M A X .

• Cancel hold by pressing (RS T ) .

3. (C/F) - Centigrade/Fahrenheit button: Toggles between these
two standard sca l e s .

4. RST - Reset:

• When data hold is on, pressing this button cancels data hold
(resumes opera t i o n ) .

• In normal operation, pressing this button clears high and low
t e m p e ratures from memory.

5. td/WBT - Temperature at Dew Point, and Wet Bulb
Temperature: Toggle between real-time readings, dew point
measurement and wet bulb tempera t u r e .

6. MIN/MAX - Minimum/Maximum: Toggle between real-time
readings, minimum stored value and maximum stored value.

M a i n t e n a n c e

Cleaning

Periodically clean your instruments case using a damp cloth. DO NOT
use abrasive, flammable liquids, cleaning solvents, or strong detergents
as they may damage the finish, impair safety, or affect the reliability of
the structural components.

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