Extech Instruments WTH600 User Manual

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6
Strong breeze
39–49 km/h
Large branches in motion. Whistling heard in
overhead wires. Umbrella use becomes difficult.
Empty plastic bins tip over.
25–30 mph
22–27 knots
10.8–13.8 m/s
7
High wind
50–61 km/h
Whole trees in motion. Effort needed to walk against
the wind.
31–38 mph
28–33 knots
13.9–17.1 m/s
8
Gale
62–74 km/h
Some twigs broken from trees. Cars veer on road.
Progress on foot is seriously impeded.
39–46 mph
34–40 knots
17.2–20.7 m/s
9
Strong gale
75–88 km/h
Some branches break off trees, and some small trees
blow over. Construction/temporary signs and
barricades blow over.
47–54 mph
41–47 knots
20.8–24.4 m/s
10
Storm
89–102 km/h
Trees are split or uprooted, structural damage likely.
55–63 mph
48–55 knots
24.5–28.4 m/s
11
Violent storm
103–117 km/h
Widespread vegetation and structural damage likely.
64–73 mph
56–63 knots
28.5–32.6 m/s
12
Hurricane force
≥ 118 km/h
Severe widespread damage to vegetation and
structures. Debris and unsecured objects become
airborne.
≥ 74 mph
≥ 64 knots
≥ 32.7m/s
11. WIND CHILL / HEAT INDEX / DEW POINT
View the Wind Chill
Press the [INDEX] button repeatedly until the WINDCHILL appears.
Note: The wind chill factor is based on the combined effects of temperature and wind speed. The
wind chill displayed is calculated solely from temperature and humidity measured by the wireless
sensor.
View the Heat Index
Press the [INDEX] button repeatedly until the HEAT INDEX appears.
Note: Heat index is only calculated when temperature is 80°F/27°C or above, and based solely from
the temperature and humidity measured by the wireless sensor.
Heat Index Range
Warning
Explanation
80°F to 90°F (27°C to 32°C)
Caution
Possibility of heat exhaustion
91°F to 105°F (33°C to 40°C)
Extreme Caution
Possibility of heat dehydration
106°F to 129°F (41°C to 54°C)
Danger
Heat exhaustion likely
≥130°F (≥55°C)
Extreme Danger
Strong risk of dehydration / sun stroke

Extech Instruments WTH600 Specifications

General

Brand	Extech Instruments
Model	WTH600
Category	Weather Station
Language	English

Summary

Introduction to the WTH600

Physical Descriptions

Main Unit Components

Overview of the main unit components and their functions.

Wireless Sensor Components

Overview of the wireless sensor components and their functions.

Display Descriptions

Main Display Elements

Explanation of the main display elements and indicators.

Indoor Display

Details of the indoor temperature and humidity display.

Outdoor Display

Explanation of the outdoor temperature and humidity display.

Forecast Display

Details of the 12+ hour weather forecast display.

Barometer Display

Explanation of the barometer display and its readings.

Rainfall Display

Details of the rainfall display and its measurement units.

Sensor Installation & Operation

Wireless Sensor Installation

Guidance on installing and setting up the wireless sensor.

Battery Installation

Instructions for installing batteries in the main unit and sensor.

Mounting Guidelines

Recommended practices for mounting the wireless sensor for accuracy.

Main Unit Operation

Initial Setup & Pairing

Steps for initial setup, battery installation, and sensor pairing.

Time Signal & Settings

Information about RC time signal and manual clock setting.

Clock & Alarm Settings

Procedures for setting the clock, time zone, and alarm.

Signal Reception Control

How to disable or enable radio-controlled time signal reception.

Weather Forecast

Barometric Pressure

Display Modes

How to choose between absolute and relative atmospheric pressure.

Setting Relative Pressure

Procedure for setting the relative atmospheric pressure value.

Barometer Units

How to select units for barometer readings (inHg, mmHg, hPa).

Rainfall

Rainfall Display Modes

Options for viewing rainfall data (Rate, Daily, Weekly, Monthly).

Rainfall Units

How to set rainfall units to mm or inches.

Wind Speed & Direction

Wind Display Modes

How to choose between average and gust wind speed display.

Wind Speed Units

How to set wind speed units (mph, m/s, km/h, knots).

Beaufort Scale

Wind Chill, Heat Index, Dew Point

Wind Chill & Heat Index

How to display and interpret wind chill and heat index calculations.

Dew Point (Indoor)

How to display and interpret indoor dew point.

Historical Data

Maximum / Minimum Memory

HI / LO Weather Alert

Setting HI / LO Alerts

Procedure for setting high and low weather alerts.

Alarm Enable/Disable

How to activate or deactivate the HI/LO alarm alerts.

Wireless Signal Reception

Comfort Levels

Comfort Indication

Explanation of the comfort level indicators based on temp/humidity.

Clearing Stray Readings

Pointing Sensor

Moon Phases

Cleaning

Cleaning Rain Collector

Instructions for cleaning the rain collector component.

Cleaning Thermo-Hygro Sensor

Instructions for cleaning the temperature and humidity sensor.

Troubleshooting

Precautions

FCC Statement

Specifications

Warranty