technoLine WS 9422 Hygrometer Instruction Manual

WS 9422
Instructions manual

Front view

(1) Mold alert
(2) 12h graphical history of relative air humidity
(3) MAX icon
(4) Relative air humidity
(5) Low battery icon
(6) Alert icon
(7) / MAX/MIN touch button
(8) / °C/°F touch button| (9) Alert LED light
(10) Alert ON/OFF touch button
(11) Alert SET point touch button
(12) MIN icon
(13) Temperature
(14) Dew point icon
(15) Comfort level icon
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Features

• Extra large LCD display
• Indoor Temperature
• Dew Point Temperature
• Indoor Relative Air Humidity
• Degree C/F Temperature
• Mold alert by LED and Mold Alert icon (at 60% , 65% , 70%, 75%)
• Max-Min record of temperature and relative air humidity
• 12-hour graphical history of relative air humidity
• Programmable upper/lower relative air humidity with LED alarm
• Easy-to-read colored comfort index
• Touch-key operation

Special instructions

This digital comfort index thermo-hygrometer is an ideal measurement device for checking your room ambient conditions.
How does air humidity affect your health and your home
Excess humidity promotes the growth of undesirable organisms in your indoor environment. Maintaining an inside humidity range of 30 to 50% indoors helps prevent growth of molds, mildew, and dust mites. Spending time in a moldy indoor environment can wear down a person’s immune system and resistance to respiratory allergies and related infections. Indoor air that is free from mold and mildew also smells fresh and inviting.
Excessively dry indoor air can dry out skin and irritate your throat and sinuses, making those areas more likely to become infected. In arid climates or in the winter when the combustion inside the furnace dries out indoor air, using a humidifier device increases relative humidity–like the can did–but much more precisely.
Indoor air that is too dry can cause wood to contract and crack, especially thinner wood such as that used to build guitars and violins. Over longer periods of time, excessively dry air can even crack solid wood beams or logs plus some types of plaster.
Active heating or ventilation can help achieve a comfortable and healthy living environment.

About dew point temperature

Dew point is a measure of how much water vapor is actually in the air.
The dew point is associated with relative humidity. A high relative humidity indicates that the dew point temperature is closer to the current air temperature.
For most people, the air feels humid when the dew point is above 15.5℃(60°F)and uncomfortably hot and sticky when it goes above 21℃(70°F)degrees.

Dew point °C| Dew point °F| Human perception| Relative humidity at 32°C (90°F)
---|---|---|---

Higher than 26°C| > Higher than80°F| Severely high.| 65% and higher
24 – 26°C| 75 – 80°F| Extremely uncomfortable, fairly oppressive| 62%
21 – 24°C| 70 – 74°F| Very humid, quite uncomfortable| 52 – 60%
18 – 21°C| 65 – 69°F| Somewhat uncomfortable for most people at upper edge| 44 – 52%
16 – 18°C| 60 – 64°F| OK for most, but all perceive the humidity
at upper edge| 37 – 46%
13 – 16°C| 55 – 59°F| Comfortable| 38 – 41%
10 – 12°C| 50 – 54°F| Very comfortable| 31 – 37%
< 10°C| < 49°F| A bit dry for some| 30%

Remark: Dew point temperature range is 0℃ to + 50℃.
When dew point temperature over 50℃ will display “HH.H”, below 0℃ display “LL.L”.

Battery installation

1. Open the battery cover at the back of your mold alert thermohydrometer.
2. lnsert 2×AAA batteries (alkaline batteries preferred)into the battery compartment by observing the correct +/- polarity signs inside the battery compartment.
3. Replace the battery cover. The unit is now ready to use.

12h graphical history of relative air humidity
You could easily view the comfort level of your room conditions in accordance with the last 12-hour relative humidity records.

To use the humidity alarm

1. To set the humidity alarm, press and hold SET for 5 seconds, both and appears at lower LCD. the humidity digits flash. Press ▲ or ▼ to set the upper humidity limit in every 5% increment.
2. Press SET once, both and appears at lower LCD, the humidity digits flash. Press ▲ or ▼ to set the lower humidity limit in every 5% increment.
3. Press SET once or wait for around 10 seconds to return to normal display condition.
4. TO turn on the humidity alarm, press ON.OFF once. appears on the LCD.
5. When air humidity exceeds the set limit, the or will flash with with flashing LED.
6. Press any key to stop the alarm and flashing LED. or remains flashing on the LCD.
7. To turn off the humidity alarm, press ON.OFF once. and the or disappears on the LCD.

Remark: Alarm and flashing LED duration 1 minute
Mold alert

1. To select the mold alert humidity, press and hold the ▼ /℃/°F. appears on the upper LCD and humidity digits flash, press ▲ or ▼ to select mold alert humidity value at 60%,65%,70% ，75%.
2. Press and hold ▼ /℃/°F or wait for around 10 seconds to return to normal display condition.
3. If air humidity exceeds the mold alert humidity value, there is a risk of mould formation. The will appear on the LCD, the red LED will flash every 5 seconds.
4. Press any key to stop the LED from flashing, remains on the LCD until the measured air humidity is lower than the preset mold alert value.

Default mold alert humidity: 65%
To read degree °C/°F temperature readout
Simply press ℃/°F to select degree C or F readout.
To read the maximum-minimum temperature and humidity records
Press MAX.MIN to view the maximum or the minimum temperature and relative humidity since the last reset.
When the maximum temperature and humidity are displayed with MAX , press and hold the MAX.MIN to clear the maximum and minimum data the unit will start to record and display fresh data again.
When the minimum temperature and humidity are displayed with  MAX , press and hold the MAX.MIN will clear the maximum and minimum data the unit will start to record and display fresh data again.

Specifications

Out of range display

Precautions

• This main unit is intended to be used only indoors.
• Do not subject the unit to excessive force or shock.
• Do not expose the unit to extreme temperatures, direct sunlight, dust or humidity.
• Do not immerse in water.
• Avoid contact with any corrosive materials.
• Do not dispose this unit in a fire as it may explode.
• Do not open the inner back case or tamper with any components of this unit.

Batteries safety warnings

• Use only button cell batteries, not rechargeable batteries.
• Install batteries correctly by matching the polarities (+/-).
• Always replace a complete set of batteries.
• Never mix used and new batteries.
• Remove exhausted batteries immediately.
• Remove batteries when not in use.
• Do not recharge and do not dispose of batteries in fire as the batteries may explode.
• Ensure batteries are stored away from metal objects as contact may cause a short circuit.
• Avoid exposing batteries to extreme temperature or humidity or direct sunlight.
• Keep all batteries out of reach from children. They are a choking hazard.

Use the product only for its intended purpose!
Consideration of duty according to the battery law
** Old batteries do not belong to domestic waste because they could cause damages of health and environment. You can return used batteries free of charge to your dealer and collection points. As enduser you are committed by law to bring back needed batteries to distributors and other collecting points!
Consideration of duty according to the law of electrical devices**
This symbol means that you must dispose of electrical devices separated from the General household waste when it reaches the end of its useful life. Take your unit to your local waste collection point or recycling centre. This applies to all countries of the European Union, and to other
European countries with a separate waste collection system.

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