The manual for the Bk Precision Data Logger Sound Level Meter provides detailed instructions on setup, operation, and troubleshooting, including how to use the RS232 interface for communication with a PC and how to perform calibration procedures. It also covers safety information, specifications, and features such as data logging, clock setup, and recording interval settings.
Manual Overview
The Bk Precision manual provides detailed guidance for technicians on operating and maintaining the Data Logger Sound Level Meter. The manual emphasizes the importance of following safety protocols and using the meter as specified to avoid impairing its protection features. It includes a comprehensive troubleshooting flow, focusing on error codes and diagnostics, such as “OVER” and “UNDER” for range limits. Calibration procedures are outlined, with specific instructions for using the CAL potentiometer for adjustments. Board-level guidance is provided through the RS-232 interface, which supports bi-directional communication with a PC for data logging and analysis. The manual details the setup for recording intervals and clock settings, essential for accurate data logging. It also covers the use of the MAX/MIN hold function for capturing peak values, and the selection of frequency and time weighting for precise measurements. The manual stresses the importance of using specified replacement parts during servicing to maintain the device’s accuracy and reliability.
Quick Issues Covered
- Calibration adjustments using CAL potentiometer.
- RS-232 interface for diagnostics and data transfer.
- Power-up issues with external DC 9V supply terminal.
Overview
Refer to the PDF for details.
Specifications
- Standard applied: IEC651 Type2, ANSI S1.4 Type2.
- Frequency range: 31.5Hz ~ 8KHz
- Measuring level range: 30 ~ 130dB
- Frequency weighting: A/C
- Microphone: 1/2 inch electret condenser microphone
- Display: LCD
- Digital display: 4 digits
- Resolution: 0.1dB
- Display Update: 0.5 sec.
- Analog display: 50 segment bargraph
- Resolution: 1dB
- Display Update: 50 mS
- Time weighting: FAST (125mS), SLOW (1 sec.)
- Level ranges: Lo: 30 — 80 dB
- Med: 50 — 100 dB
- Hi: 80-~130 dB
- Auto: 30 — 130 dB
- Accuracy: +1.5dB (under reference conditions @ 94dB, 1KHz)
- Dynamic range: 100 dB (50 dB model 732A)
- Alarm function: “OVER” is when input is more than the upper limit of range.
- “UNDER” is when input is less than the lower limit of range.
- MAX/MIN hold: Holds readings the Maximum and Minimum Value.
- AC output: 1 Vrms at FS (full scale).
- Output impedance: Approx. 1000
- FS: means the upper limit of each level range.
- DC output: 10mV / dB, output impedance approx. 1KO
- Power supply: One 9V battery, OO6P or IEC 6F22 or NEDA 1604.
- Power life: About 50hrs (alkaline battery)
- AC adapter: Voltage 9 VDC, center pin negative, (8-15VDC Max)
- Supply current: > 30mMADC Socket: pin ? Ground
- Casing ? Positive External Diameter ? 3.5mm
- Internal Diameter 2? 1.35mm
- Electromagnetic Compatibility:
- RF field = 3V/m
- Total accuracy = specified accuracy + 0.5dB
- Operation temperature: 0 to 40°C (32° to 104°F)
- Operation humidity: 10° to 90%RH
- Storage temperature: -10° to 60°C (14° to 140°F)
- Storage humidity: 10 to 75%RH
- Dimensions (L x Wx H): 10.8 x 2.5 x 1.2inch (275 x 64 x 30mm)
- Weight: 285g (including battery)
- Accessories: 9V_ battery, carrying case, Screwdriver, Instruction manual. Windscreen, 3.5? plug, software & RS-232 cable (optional model 732A).
Controls & Indicators
Refer to the PDF for details.
Installation / Setup
Refer to the PDF for details.
Operation
Refer to the PDF for details.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
Read the following safety information carefully before attempting to operate or service the meter. Use the meter only as specified in this manual; otherwise, the protection provided by the meter may be impaired.
Environment conditions:
– Altitude up to 2000 meters
– Relative humidity 90% max.
– Operation Ambient 0° ~ 40°C
Maintenance & Clearing:
– Repairs or servicing not covered in this manual should only be performed by qualified personnel.
– Periodically wipe the case with a dry cloth. Do not use abrasives or solvents on this instrument.
Safety symbols:
– CE comply with EMC
– When servicing, use only specified replacement parts.
Download MANUAL Manual (PDF – 339.9 KB)
Bk-precision-735-instruction MANUAL: Guide for technicians to troubleshoot and calibrate the Bk-precision 735 model. File size: 339.9 KB.
- Brand: Bk-precision-735-instruction
- Model: MANUAL
- Type: Manual
- File size: 339.9 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-735-instruction MANUAL Overview
The Bk-precision-735 is a versatile digital multimeter designed for accurate electrical measurements in various applications, including electronics testing, troubleshooting, and maintenance. This device provides reliable readings of voltage, current, resistance, and continuity, making it an essential tool for professionals and hobbyists alike.
Main Features and Specifications
- Measurement Functions: AC/DC Voltage, AC/DC Current, Resistance, Continuity, Diode Test
- Display: Large backlit LCD for clear readings in low-light conditions
- Range: Auto and manual ranging options for flexible measurement
- Accuracy: High precision measurement with up to 0.5% accuracy
- Data Hold Function: Freeze readings for easy documentation
- Overload Protection: Safeguards the device and user during incorrect input
- Battery Operated: Portable and convenient for field use
Basic Usage and Operation Tips
Before use, ensure the multimeter is powered on and the test leads are properly connected. Select the appropriate measurement mode using the rotary dial. For voltage measurements, connect the probes in parallel with the circuit; for current, connect in series. Always start with the highest range if unsure of the expected value to prevent damage. Use the data hold feature to capture readings when needed.
Troubleshooting and Maintenance
If the device displays erratic readings or fails to power on, check the battery level and replace if necessary. Inspect test leads for damage or wear and replace if faulty. Clean the exterior with a dry cloth and avoid exposure to moisture or extreme temperatures. Regularly calibrate the multimeter according to the manufacturer’s recommendations to maintain accuracy.
Safety Reminder
Always observe proper safety precautions when using the Bk-precision-735. Avoid measuring voltages beyond the specified limits and never touch live circuits with bare hands. Use insulated test leads and wear protective equipment when necessary. Disconnect power sources before changing measurement modes or test leads to prevent electric shock or damage to the device.