Portable High Precision Anemometer User Manual

1. Product Overview

The CERTEON TA640A/641A/642A series of portable digital anemometers are designed for high-precision measurement of wind speed, wind temperature, and in some models, humidity and air volume. These devices are suitable for a wide range of applications including HVAC system inspection, ventilation testing, and environmental monitoring. The series includes integrated and split-type models, offering versatility for various measurement needs.

Model Variations:

• Integrated Models: TA640A, TA641A, TA641B, TA642A, TA642B
• Split Model: TA642C (features a retractable handle design with a 1m telescopic rod and 1m cable, total length 2m)

Key Features:

• Multiple selectable measurement units for wind speed.
• 4-digit wind speed display, up to 9999.
• Sampling rate: 2 times per second.
• Auto power-off after 10 or 15 minutes of inactivity (can be manually disabled).
• High-sensitivity 8-blade fan for accurate and responsive measurements.
• Data Hold, Maximum, Minimum, and Average value functions.
• Upper/Lower limit exceeding alerts with visual and audible indicators (model dependent).
• USB PC Communication and data logging for TA642B/C models.

2. Setup

2.1 Power Supply

The anemometer series supports different power options:

• TA640A: Requires 2 × 1.5V AAA batteries.
• TA641A / TA641B: Requires 3 × 1.5V AAA batteries.
• TA642A / TA642B / TA642C: Requires 3 × 1.5V AA batteries or can be powered via a 5V USB Micro interface.

Battery Installation:

1. Locate the battery compartment cover on the back of the device.
2. Slide or unclip the cover to open.
3. Insert the specified number and type of batteries, ensuring correct polarity (+/-).
4. Replace the battery compartment cover securely.

USB Power (TA642A/B/C):

For models TA642A, TA642B, and TA642C, the device can also be powered by connecting a 5V USB Micro cable to the designated port. This is also used for PC communication on TA642B/C models.

2.2 Probe Assembly (TA642C Split-Type)

The TA642C model features a split design with a detachable probe for flexible measurements. To assemble:

1. Connect the probe cable to the main unit using the 5-pin aviation connector. Ensure it is securely fastened.
2. The probe includes a telescopic rod that can extend up to 1 meter for reaching elevated or confined spaces.

3. Operating Instructions

3.1 Power On/Off

Press the Power button (usually marked with a circle and a vertical line) to turn the device on or off.

3.2 Measurement Units

To switch between different wind speed units (m/s, km/h, ft/min, mile/h, knots), press the "UNIT" button. The current unit will be displayed on the screen.

3.3 Data Hold and Value Tracking

During measurement, you can use the following functions:

• Press "HOLD" to freeze the current reading on the display. Press again to release.
• Press "MAX/MIN" to cycle through maximum, minimum, and average recorded values.

3.4 Upper/Lower Limit Alarms (Model Dependent)

For models with alarm functions (e.g., TA641A, TA641B, TA642A/B/C), you can set upper and lower wind speed thresholds. If the measured value exceeds or falls below these thresholds, the device will trigger a visual alert (flashing screen) and an audible buzzer.

3.5 Data Logging and PC Communication (TA642B/C)

Models TA642B and TA642C support data logging and real-time PC communication:

• The device can store up to 1000 sets of measurement data internally.
• Connect the anemometer to a computer using a USB Micro cable.
• Install the provided PC software (compatible with Windows 7, 8, and 10).
• The software allows for real-time data monitoring, displaying data tables, and generating live curve charts for analysis. You can also export data in .xlsx format.

4. Maintenance

4.1 Battery Replacement

Refer to Section 2.1 for instructions on how to open the battery compartment and replace batteries. Always use the specified battery type and ensure correct polarity. Remove batteries if the device will not be used for an extended period.

4.2 Cleaning

Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents. Ensure the fan blades are free from dust and debris for accurate readings.

4.3 Storage

Store the anemometer in a cool, dry place, away from direct sunlight and extreme temperatures. If storing for a long period, remove the batteries to prevent leakage.

5. Troubleshooting

5.1 Device Not Powering On

• Check if the batteries are correctly installed and have sufficient charge. Replace if necessary.
• For USB-powered models, ensure the USB cable is securely connected and the power source is active.

5.2 Inaccurate Readings

• Ensure the sensor (fan) is clean and free from obstructions.
• Verify that the device is held correctly and the airflow is directed towards the sensor.
• Check for stable environmental conditions within the operating range specified in the specifications.

5.3 PC Communication Issues (TA642B/C)

• Ensure the USB cable is properly connected to both the device and the computer.
• Verify that the PC software is correctly installed and compatible with your operating system (Windows 7/8/10).
• Restart both the anemometer and the computer, then try connecting again.

6. Specifications

Detailed technical parameters for each model are provided below:

For specific model details, refer to the individual tables:

7. User Tips

• Easily switch between wind speed units (m/s, km/h, ft/min, mile/h, knots) using the 'UNIT' button for versatile measurements.
• Utilize the MAX/MIN button to track peak, lowest, and average readings during your measurements, providing a comprehensive view of data variations.
• For TA642B/C models, leverage the USB connection to export data as spreadsheets and visualize trends with real-time graphs on your PC, compatible with Windows 7, 8, and 10.

8. Warranty and Support

For any technical assistance, warranty claims, or inquiries regarding your CERTEON anemometer, please contact the manufacturer or your point of purchase. Keep your purchase receipt as proof of purchase.