Ìwé Ìtọ́sọ́nà Olùlò Olùṣàyẹ̀wò Ìwọ̀n Òtútù àti Ọriniinitutu Extech RHT20

1. Ifihan

The Extech RHT20 is a humidity and temperature datalogger designed for monitoring environmental conditions. This device records up to 16,000 humidity and 16,000 temperature readings, providing comprehensive data for various applications. It features a user-programmable sample rate, USB interface for data transfer, and an LCD display for real-time readings and alarm status. This manual provides essential information for the proper setup, operation, and maintenance of your RHT20 datalogger.

• Accurate Humidity & Temperature Monitoring: Measures relative humidity from 0-100% and temperature from -40 to 158 °F (-40 to 70 °C).
• Large 16,000-Point Memory Capacity: Stores 8,000 humidity and 8,000 temperature readings with time and date stamp.
• USB Data Transfer to PC: Connects to a computer for data download, analysis, and reporting using included software.
• Calculates Dew Point Automatically: Provides precise dew point values.
• Iwapọ & Apẹrẹ Agbekale: Lightweight and battery-powered for various monitoring locations.

2. Alaye Aabo

Please read and understand all safety instructions before operating the device. Failure to comply with these instructions may result in damage to the device or personal injury.

• Do not expose the device to extreme temperatures, direct sunlight, or high humidity for extended periods.
• Yago fun sisọ silẹ tabi tẹriba ẹrọ si ipa nla.
• Má ṣe gbìyànjú láti ṣí tàbí ṣe àtúnṣe sí ẹ̀rọ náà. Tọ́ka gbogbo iṣẹ́ ìtọ́jú náà sí àwọn òṣìṣẹ́ tó mọ̀ nípa rẹ̀.
• Sọ awọn batiri sọnu ni ibamu si awọn ilana agbegbe.
• Jeki ẹrọ naa kuro ni awọn aaye itanna to lagbara.

3. Package Awọn akoonu

Jẹrisi pe gbogbo awọn nkan wa ati ni ipo ti o dara nigbati ṣiṣi silẹ:

• Extech RHT20 Humidity and Temperature Datalogger
• Lithium Metal Battery (installed)
• Oke Atẹgun
• Okun USB
• CD sọfitiwia
• Afowoyi Olumulo (iwe-ipamọ yii)

4. Ọja Ipariview

The Extech RHT20 datalogger features a compact design with an integrated LCD display and control buttons.

Nọmba 4.1: Iwaju view of the Extech RHT20 Humidity and Temperature Datalogger, showing the LCD display, 'TEMP/%RH' button, and 'MAX/MIN' button.

Awọn eroja pataki pẹlu:

• Ifihan LCD: Shows current temperature, humidity, time, date, and alarm status.
• TEMP/%RH Button: Toggles between temperature and relative humidity display.
• Bọtini Max/MIN: Displays maximum and minimum recorded values.
• Ibudo USB: Located at the bottom, used for connecting to a PC for data transfer and configuration.
• Sensọ: Integrated sensor for humidity and temperature measurements.

5. Eto

5.1 Fifi sori batiri

The RHT20 comes with a pre-installed Lithium Metal battery. If replacement is necessary:

1. Unscrew the two small screws on the battery compartment cover located on the back of the device.
2. Remove the cover and the old battery.
3. Insert a new 3.6V Lithium Metal battery (e.g., 1/2 AA size) ensuring correct polarity.
4. Rọpo ideri batiri naa ki o si fi awọn skru so o mọ.

5.2 Software fifi sori

The RHT20 requires proprietary software for full configuration and data analysis. The software is provided on a mini-CD. It is recommended to check the Extech website for the latest version and drivers.

1. Insert the software CD into your computer's CD/DVD drive. If your computer does not have a CD drive, download the software from the official Extech support webojula.
2. Follow the on-screen instructions to install the software and USB drivers.
3. Ensure the installation completes successfully before proceeding.

5.3 Connecting to PC and Initial Configuration

Connect the datalogger to your PC using the supplied USB cable to set up logging parameters and synchronize time.

Nọmba 5.1: The Extech RHT20 Datalogger connected to a computer via its USB port for data transfer and configuration.

1. Connect the mini-USB end of the cable to the datalogger and the standard USB end to an available port on your PC.
2. Launch the Extech Datalogger software.
3. Within the software, select the "Connect" option. The software should detect the device.
4. Navigate to the "Logger Set" or "Parameter Settings" section. Here you can configure:
   • SampOṣuwọn ling: Choose from 2s, 5s, 10s, 30s, 1m, 5m, 10m, 30m, 1hr, 2hr, 3hr, 6hr, 12hr, or 24hr.
   • Awọn ifilelẹ Itaniji: Set high and low limits for both humidity and temperature.
   • Ipo wíwọlé: Options typically include stopping when memory is full or overwriting the oldest data.
   • Ẹka Iwọn: Select Celsius or Fahrenheit for temperature.
   • Ọjọ ati Aago: Synchronize the datalogger's clock with your PC.
5. Apply the settings to the datalogger. The device is now ready for data logging.

6. Operating the Datalogger

6.1 Starting Data Logging

Once configured via the software, disconnect the datalogger from the PC. Press and hold the "TEMP/%RH" button for approximately 3 seconds until the "REC" indicator appears on the LCD, signifying that logging has started. Place the datalogger in the desired monitoring location.

Nọmba 6.1: The Extech RHT20 Datalogger mounted on a shelf, actively monitoring environmental conditions in a storage facility.

6.2 Viewing Current Readings

While logging, the LCD will continuously display the current temperature and humidity. Press the "TEMP/%RH" button to toggle between displaying temperature and relative humidity.

6.3 ViewÀwọn Ìkà MAX/MIN

Press the "MAX/MIN" button to cycle through the maximum and minimum recorded temperature and humidity values since logging began. Pressing it again will return to current readings.

6.4 Stopping Data Logging

To stop logging, press and hold the "TEMP/%RH" button for approximately 3 seconds until the "REC" indicator disappears from the LCD.

6.5 Data Download and Analysis

After logging is complete, connect the datalogger to your PC via USB. Open the Extech Datalogger software and select the "Download Data" option. The software will retrieve the recorded data, which can then be viewed in graphical or tabular format, exported to a spreadsheet (e.g., .xls or .txt), or saved in a proprietary format for later analysis.

7. Itọju

7.1 Ninu

Nu ẹrọ naa pẹlu asọ, damp cloth. Do not use abrasive cleaners or solvents. Ensure the device is dry before use or storage.

7.2 Batiri Rirọpo

Refer to Section 5.1 for instructions on replacing the Lithium Metal battery. Replace the battery when the low battery indicator appears on the LCD.

7.3 Ibi ipamọ

When not in use for extended periods, store the datalogger in a cool, dry place, away from direct sunlight and extreme temperatures. It is advisable to remove the battery if storing for several months to prevent leakage.

8. Laasigbotitusita

• Ẹrọ ti ko tan: Ṣàyẹ̀wò bí batiri ṣe ń ṣiṣẹ́ kí o sì rí i dájú pé batiri náà ní agbára tó. Rọ́pò rẹ̀ tí ó bá pọndandan.
• "REC" indicator not appearing: Ensure the "TEMP/%RH" button is pressed and held for the required duration (approx. 3 seconds). Verify that the device is not connected to a PC, as logging typically starts after disconnection.
• Software not detecting device:
  • Ensure the USB cable is securely connected to both the datalogger and the PC.
  • Verify that the USB drivers for the RHT20 are correctly installed. Reinstall if necessary.
  • Gbiyanju ibudo USB miiran lori PC rẹ.
  • Tun software naa bẹrẹ ati/tabi kọmputa rẹ.
  • Check for any firewall or antivirus software blocking the datalogger software.
• Awọn kika ti ko pe: Ensure the sensor is clean and unobstructed. Allow the device to acclimate to the environment for a few minutes before taking critical measurements.
• Data logging stops unexpectedly: Check the battery level. If the logging mode was set to stop when memory is full, download data and clear the logger to resume.

9. Awọn pato

10. Atilẹyin ọja ati Support

10.1 atilẹyin ọja Alaye

Extech instruments are warranted against defects in parts and workmanship for a specified period from the date of shipment (typically one year). For detailed warranty terms and conditions, please refer to the warranty card included with your product or visit the official Extech website. This warranty does not cover defects resulting from user modification, misuse, improper handling, battery leakage, or unauthorized repair.

10.2 Imọ Support

For technical assistance, troubleshooting, or service inquiries, please contact Extech customer support. You can find contact information and additional resources on the official Extech webojula: www.extech.com/support. Please have your product model number (RHT20) and serial number ready when contacting support.