UNI-T A56 BT Temperature Humidity Datalogger User Manual

1. Introduction

The UNI-T A56 BT and A57 BT are advanced temperature and humidity dataloggers designed for precise environmental monitoring. These devices feature a large data storage capacity of 64,000 sets, Bluetooth connectivity for seamless communication with PC and mobile applications, and robust IP54 protection. They are ideal for various applications requiring accurate and reliable temperature and humidity data logging, such as food processing, cold-chain transportation, and warehouse monitoring.

2. Key Features

• High Accuracy: Measures temperature with an accuracy of ±0.3°C and humidity with ±2.5%RH.
• Large Data Storage: Capable of storing up to 64,000 sets of temperature and humidity data.
• Bluetooth Connectivity: Enables wireless data transfer and configuration via Bluetooth to a mobile application (TempLink) or PC analysis software.
• Audible and Visible Alarm: Provides alerts for out-of-limit temperature and humidity conditions.
• IP54 Protection: Offers protection against dust and splashing water, suitable for various environments.
• Magnetic Wall-Mounted Design: Allows for flexible and secure placement.
• Adjustable Record Interval: Logging intervals can be set from 10 seconds to 24 hours.
• Multi-language Support: User interface available in English, French, German, Italian, Spanish, Swedish, Polish, and Czech.
• Long Battery Life: Powered by a single-use Li-ion battery (3.6V 2700mAh ER14505) with up to 2 years of life (room temperature, 15min record interval).

Figure 2.1: Overview of UNI-T A56 BT Datalogger key features including Bluetooth APP, 64000 Data Storage, High Accuracy, PC Analysis Software, Audible and Visible Alarm, and Waterproof Dustproof (IP54).

Figure 2.2: Detailed features including simultaneous large-screen display, wide measurement range (-40°C to 85°C), adjustable record interval, over-limit alarm, and magnetic wall-mounted design.

3. Setup

3.1. Initial Inspection

Upon unpacking, verify that all components are present and undamaged. The package typically includes the A56 BT datalogger, a gift box, a quick start guide, a safety instruction, download operation guide, battery, wall-mounted screws*2, expandable rubber plug*2, and a USB cable.

3.2. Battery Installation

The datalogger uses a single-use Li-ion battery (3.6V 2700mAh ER14505). Refer to the quick start guide for specific instructions on how to open the battery compartment and correctly insert the battery. Ensure proper polarity.

3.3. Software Installation

Download the UNI-T TempLink mobile application from your device's app store or the PC analysis software from the official UNI-T website. Follow the on-screen instructions for installation.

3.4. Mounting the Datalogger

The A56 BT features a magnetic wall-mounted design. Choose a suitable location for monitoring, ensuring it is within Bluetooth range of your control device if wireless operation is desired. Use the provided screws and plugs for secure wall mounting if needed.

Figure 3.1: Front view of the A56 BT Datalogger, displaying current temperature and humidity readings.

4. Operating Instructions

4.1. Connecting via Bluetooth

1. Ensure Bluetooth is enabled on your smartphone or PC.
2. Open the TempLink app or PC software. The software will automatically search for nearby A56 BT/A57 BT dataloggers.
3. Select your datalogger from the list of discovered devices to establish a connection.

4.2. Configuring Logging Parameters

Using the TempLink app or PC software, you can configure various logging parameters:

• Logging Interval: Set how frequently data is recorded (e.g., 10s, 1min, 1h).
• Alarm Thresholds: Define upper and lower limits for temperature and humidity to trigger audible and visual alarms.
• Start/Stop Logging: Initiate or terminate data recording.
• Unit Selection: Choose between °C and °F for temperature display.

4.3. Starting and Stopping Data Logging

Once configured, you can start logging directly from the app/software. The datalogger will begin recording data at the specified interval. To stop logging, use the corresponding function in the application.

4.4. Data Retrieval and Analysis

After logging, connect the datalogger to the TempLink app or PC software. You can then download the recorded data. The software allows for graphical analysis of the data and export into various formats such as XLSX (Excel), CSV, or TXT for further processing.

Figure 4.1: Illustration of the datalogger's capabilities, including 64000 data storage, Bluetooth APP and PC software support, and automatic generation of multiple report forms (PDF, CSV).

5. Maintenance

5.1. Battery Replacement

When the battery indicator on the display shows low power, replace the battery promptly to ensure continuous operation and data integrity. Use only the specified battery type (3.6V 2700mAh ER14505 Li-ion battery).

5.2. Cleaning

Wipe the datalogger with a soft, dry cloth. Do not use abrasive cleaners or solvents. While the device has IP54 protection, avoid submerging it in water or exposing it to excessive moisture.

5.3. Storage

Store the datalogger in a cool, dry place away from direct sunlight and extreme temperatures when not in use for extended periods. Remove the battery if storing for several months to prevent leakage.

6. Troubleshooting

• Device not connecting via Bluetooth: Ensure the datalogger is powered on and within range (up to 100 feet). Check that Bluetooth is enabled on your smartphone or PC. Restart both the datalogger and the application.
• Inaccurate readings: Verify that the datalogger is placed in an environment free from direct heat sources, strong air currents, or excessive moisture that could affect sensor performance. Ensure the sensor opening is not obstructed.
• Data logging not starting: Confirm that logging parameters have been correctly configured and the 'Start' command has been issued through the application. Check battery level.
• Display not working: Check the battery level and replace if necessary. If the issue persists, contact customer support.

7. Specifications

Figure 7.1: Detailed table of functions, ranges, accuracy, and other characteristics of the A56 BT Datalogger.

8. Warranty and Support

Warranty information for the UNI-T A56 BT/A57 BT Temperature Humidity Datalogger is typically provided with the product packaging or available on the official UNI-T website. Please refer to these resources for detailed warranty terms and conditions.

For technical support, product inquiries, or service, please visit the official UNI-T website or contact their customer service department through the contact information provided in your product documentation.