The manual for Models 750, 751, and 752 dataloggers covers setup, operation, and troubleshooting, including instructions for installing the AK-75X software, connecting the IR interface, setting up the datalogger, and reading and processing data. It also provides guidelines for battery replacement, ensuring proper voltage and temperature ranges, and maintaining the device's waterproof seal for Model 750.
Manual Overview
The Bk MANUAL for Models 750, 751, and 752 dataloggers provides detailed instructions on setup, operation, and troubleshooting. The dataloggers can be programmed and read via an IR link, with data processed using AK-75X software. For troubleshooting, ensure the IR window is clean and avoid exceeding specified voltage and temperature limits. Calibration involves setting up the PC with AK-75X software, connecting the IR interface, and configuring the datalogger through the software’s setup menu. Error diagnostics include monitoring LED indicators: a flashing red LED signals an alarm, while a green LED indicates active measurements. Battery status can be checked via the software, with replacement recommended every two years. For board-level guidance, ensure connections do not exceed 25V and maintain common ground connections. The manual emphasizes the importance of using the correct battery type and maintaining the waterproof seal for Model 750. Data can be exported to text or Excel files for further analysis.
Quick Issues Covered
- Diagnose IR communication issues with AK-75X software.
- Resolve power-up failures by checking battery polarity and voltage.
- Use schematics for tracing alarm output circuit issues.
Overview
The datalogger family 75X consists of models 750, 751, and 752, which integrate several data recorders programmable and readable via an IR link. The recorded data can be managed using external PC software (AK-75X), which allows data export into text or Excel files. The manual covers special care instructions, operating procedures, setup, data processing, external connections, battery replacement, and specifications for each model.
Specifications
- Range: -40° ~ 85°C (-40°~ 185°F)
- Internal Temperature
- External Temperature: -40° – 150°C (-40°-302°F)
- Voltage: 0-2.5, 0-10, 0-25 VDC
- Resolution: 12 bit
- Internal Temperature: ±0.1°C (±0.2°F)
- External Temperature: ±0.1°C (±0.2°F)
- Voltage: 0.01V
- Accuracy:
- Internal Temperature: ±1°C (±2°F)
- External Temperature: ±1°C (±2°F)
- Voltage: 1/1000
- Sampling Rate: 0.5s to 1 hour
- Memory: 21,333 Measurements
- Operating Temp. & Humidity: -40°~85°C (-40°~185°F) & 10-90% RH
- Storage Temp & Humidity: -40°~85°C (-40°~185°F) & 10-90% RH
- Battery: 2 AA Lithium 3.6 V Battery
- Battery Life: Approx. 3 years (recommend replacement every 2 years)
- IP Rating: IP68
- Case Material: Polycarbonate Thermoplastic
- Dimensions: 45 mm x 57 mm x 25 mm (LxWxH) (1.77 x 2.24 x 0.98”)
- Mounting: Screw, magnetic or velcro-strip on back
Controls & Indicators
Refer to the PDF for details.
Installation / Setup
The setup for the Models 750, 751, and 752 dataloggers involves installing the AK-75X software on a PC and connecting the IR interface to the computer’s serial port. The serial port number and speed should be verified through the software’s options menu. The datalogger is scanned by positioning its IR interface facing the connected IR interface on the PC. The time and date are set by transferring them from the PC to the datalogger. The setup includes naming the datalogger, selecting measurements to store, setting the sampling rate, and defining the start and end of measurements. Alarm thresholds can be set, and the setup is sent to the datalogger. Measurements are started and stopped using the software, and data can be read and processed on the PC. External connections include an alarm output with a 560 ohms serial resistor, and thermocouple connections require specific wiring. The maximum input voltage should not exceed 25 volts.
Operation
To operate the datalogger for the first time, install the AK-75X software on your PC and connect the IR interface to the computer’s serial port. Start the software and verify the serial port settings. Use the [Scan] function to search for the datalogger, ensuring the IR interfaces are aligned. Set the time and date by transferring them from the PC to the datalogger. In the setup menu, name the datalogger, select measurements, sampling rate, and start and end conditions for measurements. Validate alarms if needed. Send the setup to the datalogger and start measurements by clicking the [Start] icon. To stop, click the [Stop] icon. Read stored measurements by clicking the [read] icon to transfer data to the computer for processing and exporting.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
Do not exceed 30V for input voltage. The alarm output should not exceed 20V. Do not exceed the operating temperature range of -40°F to 185°F (-40°C to +85°C). The IR link operating range is 32°F to 185°F (0°C to 85°C). Ensure the IR window is clean. Using the AK-75X software in Instantaneous Measurement Mode will significantly reduce battery life. Do not scan two dataloggers programmed at the same address simultaneously. The alarm output has a 560 ohms serial resistor, and inputs have common ground connections. The maximum voltage for voltage input must not exceed 25 volts. When replacing the battery in Model 750, replace the seal to maintain IP68 protection.
Download MANUAL Manual (PDF – 218.3 KB)
Bk-precision-752-instruction manual: assists technicians in troubleshooting and calibrating the Bk-precision-752 model. File size: 218.3 KB.
- Brand: Bk-precision-752-instruction
- Model: MANUAL
- Type: Manual
- File size: 218.3 KB
Overview
Brief overview of the product.
Specifications
- Key spec 1
- Key spec 2
Controls & Indicators
Control panel/button layout.
Installation / Setup
- Step 1…
- Step 2…
Operation
Basic usage, modes, cycles.
Troubleshooting & Error Codes
| Issue / Code | Fix |
|---|---|
| Example | How to fix… |
Safety & Warnings
- Important warning…
Downloads
Bk-precision-752-instruction Overview
The Bk-precision-752 is a versatile and reliable piece of test equipment designed for precise electrical measurements and diagnostics. Ideal for technicians, engineers, and hobbyists, this device offers accurate readings for voltage, current, resistance, and other electrical parameters, making it essential for troubleshooting and maintaining electronic circuits and systems.
Main Features and Specifications
- Measurement Types: AC/DC Voltage, AC/DC Current, Resistance, Continuity, and Diode Testing
- Display: Large, clear digital LCD with backlight for easy reading in low light
- Range: Auto and manual ranging options for flexibility and precision
- Input Protection: Overload protection to safeguard the device and user
- Power Supply: Battery operated with low battery indicator
- Compact and lightweight design for portability
- Data Hold function to freeze readings for convenience
Basic Usage and Operation Tips
Before using the Bk-precision-752, ensure the device is powered on and the battery level is sufficient. Select the appropriate measurement mode using the rotary switch. Connect the test leads to the correct input terminals and the circuit under test. For voltage measurements, connect the leads in parallel with the circuit component. For current measurements, connect the leads in series. Always start with the highest range if unsure of the expected value to prevent damage. Use the Data Hold function to freeze readings when needed for easier recording.
Troubleshooting and Maintenance
If the device displays erratic readings or fails to power on, check the battery and replace it if necessary. Inspect the test leads for any damage or wear and replace them if faulty. Clean the device regularly with a dry cloth and avoid exposure to moisture or extreme temperatures. If the display shows “OL” or overload, reduce the measurement range or disconnect the leads immediately to prevent damage. For persistent issues, consult the full manual or contact customer support.
Safety Reminder
Always observe proper safety precautions when using the Bk-precision-752. Avoid measuring voltages or currents beyond the device’s specified limits. Never touch exposed metal parts during measurement to prevent electric shock. Use insulated test leads and wear appropriate personal protective equipment when working with high voltages. Disconnect power from circuits before changing measurement modes or test lead connections to ensure safe operation.