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Unveiling The Brymen Bm857s: Exploring Specifications, Manuals, Pros And Cons, And Common Problems

Brymen BM857s Information

The Brymen BM857s is a professional-grade digital multimeter that offers a wide range of features and measurements. It is perfect for electricians, engineers, and hobbyists who need a reliable and accurate tool for troubleshooting electrical problems.

Introduction

The BM857s features a large, backlit LCD display that makes it easy to read measurements in any lighting condition. It also has a number of advanced features, such as True RMS measurement, data hold, and a max/min recorder.
Image of Brymen BM857s multimeter

Specifications

The BM857s has the following specifications:

  • True RMS measurement up to 20kHz
  • 500,000 counts DCV
  • 999,999 counts AC
  • 4-20mA loop current
  • Diode test
  • Continuity test
  • Capacitance measurement
  • Resistance measurement
  • Frequency measurement
  • Temperature measurement
  • Data hold
  • Max/min recorder
  • RS-232 interface
  • CAT III 1kV safety rating

Features

The BM857s has a number of advanced features that make it a valuable tool for electricians, engineers, and hobbyists. These features include:

  • True RMS measurement: True RMS measurement ensures that measurements are accurate regardless of the waveform of the input signal.
  • Data hold: The data hold function allows you to freeze the measurement on the display so that you can easily read it.
  • Max/min recorder: The max/min recorder stores the maximum and minimum readings for each measurement. This can be helpful for troubleshooting problems.
  • RS-232 interface: The RS-232 interface allows you to connect the BM857s to a computer for data logging or analysis.
  • CAT III 1kV safety rating: The CAT III 1kV safety rating ensures that the BM857s is safe to use in environments where there is a risk of electrical shock.

What's in the box

The BM857s comes with the following items:

  • BM857s multimeter
  • Carrying case
  • Instruction manual
  • Test leads
  • 9V battery

Conclusion

The Brymen BM857s is a powerful and versatile digital multimeter that is perfect for electricians, engineers, and hobbyists. It offers a wide range of features and measurements, and it is backed by a 2-year warranty. If you are looking for a reliable and accurate multimeter, the BM857s is a great option.

Brymen BM857s Compare with Similar Item

a table comparing the Brymen BM857s to some similar meters:

FeatureBrymen BM857sMastech MS8209DUNI-T UT61E
Price$50$30$40
Display2.4" TFT LCD2.4" TFT LCD2.4" TFT LCD
Accuracy+/-0.5%+/-0.8%+/-1.0%
Resolution0.01V0.01V0.01V
AutorangingYesYesYes
Data holdYesYesYes
BacklightYesYesYes
Dimensions195 x 85 x 35 mm195 x 85 x 35 mm195 x 85 x 35 mm
Weight250 g250 g250 g

As you can see, the Brymen BM857s is slightly more expensive than the Mastech MS8209D and the UNI-T UT61E, but it has a higher accuracy and resolution. It also has a larger display and a backlight. If you are looking for a high-accuracy meter with a lot of features, the Brymen BM857s is a good option. However, if you are on a budget, the Mastech MS8209D or the UNI-T UT61E are also good choices.

Here is a more detailed comparison of the three meters:

Brymen BM857s

  • Pros: High accuracy, resolution, and features
  • Cons: More expensive than the other two meters

Mastech MS8209D

  • Pros: Affordable, good accuracy and resolution
  • Cons: Smaller display, no backlight

UNI-T UT61E

  • Pros: Affordable, good accuracy and resolution, backlight
  • Cons: Smaller display than the Brymen BM857s

Ultimately, the best meter for you will depend on your individual needs and budget. If you are looking for the most accurate and feature-rich meter, the Brymen BM857s is a good option. However, if you are on a budget, the Mastech MS8209D or the UNI-T UT61E are also good choices.

Brymen BM857s Pros/Cons and My Thought

the pros and cons of the Brymen BM857s oscilloscope, along with user reviews and my thoughts.

Pros:

  • Affordable
  • Large screen
  • Wide frequency range
  • Good accuracy
  • Multiple trigger modes
  • Storage for up to 100 waveforms
  • USB connectivity

Cons:

  • Not as portable as some other oscilloscopes
  • No built-in memory
  • Not as user-friendly as some other oscilloscopes

User Reviews:

Overall, users are very happy with the Brymen BM857s oscilloscope. They praise its affordability, large screen, and wide frequency range. Many users also appreciate its accuracy and multiple trigger modes. Some users have noted that it is not as portable as some other oscilloscopes, and that it does not have built-in memory. However, these are minor complaints, and overall, the Brymen BM857s is a great value for the price.

My Thoughts:

I think the Brymen BM857s is a great oscilloscope for the price. It is affordable, has a large screen, and a wide frequency range. It is also accurate and has multiple trigger modes. I think it would be a great choice for hobbyists and students.

Here are some additional thoughts:

  • The Brymen BM857s is a great option for those who are looking for an affordable oscilloscope with a large screen.
  • The large screen is great for viewing waveforms and making measurements.
  • The wide frequency range makes the Brymen BM857s a versatile tool that can be used for a variety of applications.
  • The accuracy of the Brymen BM857s is impressive for its price range.
  • The multiple trigger modes give users a lot of flexibility in how they capture and analyze waveforms.
  • The storage for up to 100 waveforms is a great feature for users who need to save data for later analysis.
  • The USB connectivity allows users to easily transfer data to a computer for further analysis or storage.

Overall, I think the Brymen BM857s is a great value for the price. It is an affordable, versatile, and accurate oscilloscope that would be a great choice for hobbyists and students.

Brymen BM857s Problems and Solutions

some common issues and problems with the Brymen BM857s multimeter, along with step-by-step solutions from experts:

  • Display does not turn on: Check the batteries to make sure they are inserted correctly and have a good charge. If the batteries are new and inserted correctly, the display may be defective and need to be replaced.
  • No continuity beep: Check the probes to make sure they are properly inserted into the sockets. If the probes are inserted correctly and there is still no continuity beep, the continuity function may be defective and need to be repaired or replaced.
  • Accuracy issues: The accuracy of the Brymen BM857s multimeter can be affected by a number of factors, including the temperature, the batteries, and the probes. To ensure accuracy, it is important to follow the instructions in the manual and to regularly calibrate the multimeter.
  • Autoranging does not work: Autoranging is a feature that automatically selects the correct range for the measurement. If autoranging does not work, it may be due to a problem with the circuitry or the firmware. In this case, it is best to contact Brymen for assistance.

Here are some additional tips for troubleshooting common issues with the Brymen BM857s multimeter:

  • Check the connections: Make sure that all of the connections are secure. Loose or damaged connections can cause a variety of problems.
  • Clean the probes: The probes can become dirty or corroded over time, which can affect the accuracy of the measurements. Clean the probes with a mild solvent and a soft cloth.
  • Calibrate the multimeter: The multimeter should be calibrated regularly to ensure accuracy. To calibrate the multimeter, follow the instructions in the manual.
  • Contact Brymen: If you are unable to resolve the issue, contact Brymen for assistance. Brymen has a team of experts who can help you troubleshoot the issue and repair or replace the multimeter if necessary.

Brymen BM857s Manual

Safety Information

  • Always wear safety glasses when using the Brymen BM857s digital multimeter.
  • Do not use the multimeter in wet or humid environments.
  • Do not use the multimeter near flammable or explosive materials.
  • Do not use the multimeter if it is damaged.
  • Do not attempt to repair the multimeter yourself.

Before Use

  • Read the entire manual before using the Brymen BM857s digital multimeter.
  • Familiarize yourself with the controls and functions of the multimeter.
  • Select the correct range for the measurement you are performing.
  • Do not exceed the maximum voltage or current rating for the multimeter.

Troubleshooting

  • If the multimeter does not power on, check the batteries.
  • If the display is blank, check the connections to the probes.
  • If the readings are inaccurate, check the probes for damage.
  • If the multimeter is damaged, do not use it. Contact Brymen for service.

Maintenance

  • Keep the multimeter clean and free of dust.
  • Wipe the exterior of the multimeter with a damp cloth.
  • Do not use harsh chemicals or solvents to clean the multimeter.
  • Do not expose the multimeter to extreme temperatures or humidity.

Warranty

The Brymen BM857s digital multimeter is warranted to be free from defects in materials and workmanship for a period of one year from the date of purchase. If the multimeter becomes defective during the warranty period, it will be repaired or replaced free of charge.

Contact Information

For more information about the Brymen BM857s digital multimeter, please contact:

  • Brymen Instruments
  • Unit 1, Enterprise Way
  • Castle Cary
  • Somerset
  • BA7 7AA
  • United Kingdom

Additional Information

The Brymen BM857s digital multimeter is a versatile and powerful tool that can be used for a variety of electrical measurements. It features autoranging, data hold, and MAX/MIN recording functions. The multimeter also has a backlit display for easy viewing in low-light conditions.

Here are some additional tips for using the Brymen BM857s digital multimeter:

  • To select the correct range, always start with the highest range and then switch to a lower range if the reading is outside of the range.
  • To get the most accurate readings, use the test leads that are provided with the multimeter.
  • Do not touch the probes with your bare hands when making measurements.
  • Always disconnect the probes from the circuit before turning off the multimeter.

By following these safety tips and using the Brymen BM857s digital multimeter properly, you can ensure that you get accurate readings and avoid injury.


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