Gain Express HTM-238

Gain Express HTM-238 Handheld Digital Humidity & Temperature Meter

Model: HTM-238

1. Introducció

The Gain Express HTM-238 is a compact, handheld digital meter designed for accurate measurement of both humidity and temperature. It features a dual LCD display with backlight for clear readings in various environments. This device is suitable for a wide range of applications including agriculture, meteorology, household use, laboratories, warehouses, and air conditioning systems.

The meter is equipped with a high-precision sensor for quick response and stable performance, offering MAX/MIN measurements and data hold functions. Its portable design allows for easy carrying and use anywhere.

Gain Express HTM-238 meter used in various settings like office, schools, home, and storage.

The HTM-238 meter is versatile for use in offices, schools, homes, and storage facilities.

2. Producte acabatview

2.1 Components

Diagram showing the parts of the Gain Express HTM-238 meter, including sensor, MAX button, Power ON/OFF button, LCD Display, Mount, and Battery Compartment.

Davant i darrere view of the HTM-238 meter, highlighting its key components: the sensor, MAX button, Power ON/OFF button, LCD display, mounting point, and battery compartment.

  • Sensor: Located at the top, responsible for detecting humidity and temperature.
  • Botó d'encesa / apagat: S'utilitza per encendre o apagar el dispositiu.
  • Botó MAX: Toggles between MAX/MIN readings and data hold.
  • Pantalla LCD: Shows current humidity and temperature readings.
  • Compartiment de la bateria: Situat a la part posterior per a la instal·lació de la bateria.

2.2 Característiques clau

  • Dual display for simultaneous temperature and humidity readings.
  • Disseny compacte i lleuger per a la portabilitat.
  • 3.7cm LCD screen with backlight for clear visibility.
  • Simple two-button operation.
  • High precision sensor for quick and accurate measurements.
  • MAX/MIN measurement and data hold functions.
  • Indicació de bateria baixa.
  • Automatic shutdown when not in use.
Gain Express HTM-238 Handheld Digital Humidity & Temperature Meter with icons illustrating its features: dual display, MAX/MIN, data hold, small size, C/F units, low battery indicator, simple operation, high precision, backlight, and wide measuring range.

Un acabatview of the HTM-238's features, including its dual display, MAX/MIN readings, portability, temperature units, low battery indication, simple operation, high precision, backlight, and wide measuring range.

3. Configuració

3.1 Unboxing

En obrir el paquet, assegureu-vos que hi hagi tots els components:

  • 1 x Gain Express HTM-238 Humidity & Temperature Meter
  • 1 x manual d'instruccions
  • 1 x bateria de 9V
Contents of the Gain Express HTM-238 package: the meter, an instruction manual, and a 9V battery.

The complete set includes the HTM-238 meter, its instruction manual, and a 9V battery.

3.2 Instal·lació de la bateria

  1. Localitzeu el compartiment de la bateria a la part posterior del mesurador.
  2. Feu lliscar la tapa del compartiment de la bateria cap avall per obrir-lo.
  3. Connect the provided 9V battery to the battery connector, observing polarity.
  4. Col·loqueu la bateria al compartiment.
  5. Feu lliscar la tapa del compartiment de la bateria fins que faci clic de manera segura.
Image showing the battery compartment of the Gain Express HTM-238 meter with a 9V battery being installed, and another image showing the compact size of the meter fitting into a pocket.

The HTM-238 is powered by a 9V battery, easily accessible via the rear compartment. Its compact design allows it to fit conveniently into a pocket.

4. Instruccions de funcionament

4.1 Encès/Apagat

Premeu el botó Encès/apagat button (⏻) to turn the meter on. Press and hold the same button for approximately 2 seconds to turn the meter off. The device will automatically shut down after a period of inactivity to conserve battery life.

4.2 Prendre mesures

Once powered on, the meter will immediately begin displaying current humidity (%RH) and temperature (°C/°F) readings on the LCD. Ensure the sensor at the top of the device is exposed to the environment you wish to measure.

Close-up of the HTM-238's LCD display showing both humidity and temperature readings simultaneously.

The meter features a dual display, showing humidity (top) and temperature (bottom) readings concurrently.

4.3 Canvi d'unitats de temperatura (°C/°F)

With the meter powered on, briefly press the Encès/apagat button (⏻) to toggle between Celsius (°C) and Fahrenheit (°F) temperature units.

4.4 MAX/MIN and Data Hold Function

Premeu el botó MAX button to cycle through different display modes:

  1. Lectura actual: Visualització per defecte.
  2. MÀXIM: Displays the maximum temperature and humidity recorded since the meter was turned on or reset.
  3. MIN: Displays the minimum temperature and humidity recorded since the meter was turned on or reset.
  4. MANTENIR: Freezes the current readings on the display. Press MAX again to exit HOLD mode and return to current readings.

To reset MAX/MIN values, press and hold the MAX button for approximately 2 seconds while in MAX or MIN display mode.

Images showing the HTM-238 display in MAX, MIN, and HOLD modes, indicating the highest, lowest, and frozen readings respectively.

The display can show the maximum recorded values, minimum recorded values, or hold the current readings.

4.5 Llum de fons

The LCD display features a backlight for improved visibility in low-light conditions. The backlight activates automatically when the meter is turned on and will turn off automatically after a short period of inactivity to save power.

Close-up of the HTM-238's clear LCD display with backlight, showing humidity and temperature readings.

The clear LCD display with backlight ensures readings are easily visible.

5. Especificacions

ParàmetreValor
Interval de temperatura-30 °C a 70 °C (-22 °F a 158 °F)
Precisió de la temperatura±1°C (-30-0°C), ±0.5°C (0-70°C)
Resolució de temperatura0.1 °C / 0.2 °F
Gamma d’humitat0% a 100% HR
Precisió de la humitat±4.5% (0-20% RH), ±3% (20-80% RH), ±4.5% (80-100% RH)
Resolució d’humitat0.1% HR
SampTarifa ling2.5 vegades / segon
Font d'alimentacióBateria de 9 V
LCD Diameter3.7 cm
Dimensions de l'article (W x H)5.98"W x 2.17"H (approx. 15.2 x 5.5 cm)
Pes de l'article0.18 kg
Detailed specifications table for the HTM-238 meter, listing temperature and humidity ranges, accuracies, resolutions, sampling rate, power supply, and LCD size.

A visual representation of the HTM-238's technical specifications.

6. Manteniment

  • Neteja: Wipe the meter with a soft, dry cloth. Do not use abrasive cleaners or solvents.
  • Emmagatzematge: When not in use for extended periods, remove the battery to prevent leakage. Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
  • Cura del sensor: Avoid touching the sensor directly or exposing it to harsh chemicals, as this can affect accuracy.
  • Substitució de la bateria: Substituïu la pila de 9 V quan aparegui l'indicador de pila baixa a la pantalla.

7. Solució De Problemes

ProblemaCausa possibleSolució
El comptador no s'encénBateria morta o instal·lada incorrectamentComproveu la polaritat de la pila o substituïu-la per una pila nova de 9 V.
Lectures inexactesSensor obstruction or damage; extreme environmental conditions; meter not stabilizedEnsure sensor is clean and unobstructed. Allow meter to stabilize in the environment for a few minutes. Avoid using in conditions outside specified ranges.
La pantalla és tènue o en blancBateria baixaSubstituïu la bateria de 9V.
Els botons no responenError temporal de programariTraieu i torneu a inserir la bateria per dur a terme un restabliment complet.

8. Vídeo oficial del producte

Official product video demonstrating the features and applications of the Gain Express Handheld Digital Humidity & Temperature Meter.

9. Garantia i Suport

Gain Express products are designed for reliability and performance. For specific warranty information, please refer to the documentation included with your purchase or contact Gain Express customer support directly. Keep your purchase receipt as proof of purchase for any warranty claims.

For technical assistance or inquiries, please visit the official Gain Express weblloc o poseu-vos en contacte amb el seu departament d'atenció al client.

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