Brymen Bm857s: Everything You Need To Know – Specifications, Comparisons, Manuals, And Troubleshooting

Brymen BM857s Information

The Brymen BM857s is a professional-grade digital multimeter that offers a wide range of features and functions. It is a True RMS meter, meaning that it can accurately measure AC signals of any waveform. It also has a high resolution mode for measuring small signals, and a dBm function for measuring signal strength in decibels.

The BM857s is a CAT III 1000 V and CAT IV 600 V meter, making it safe to use in high-voltage environments. It also has a number of other safety features, such as an input warning that prevents you from accidentally connecting the meter to a live circuit.

In addition to its measurement functions, the BM857s also has a number of other features that make it a valuable tool for electrical engineers and technicians. These features include:

  • A data hold function that allows you to freeze the current measurement on the display
  • A max/min function that records the maximum and minimum values of a measurement
  • A relative zero function that allows you to compare two measurements
  • A frequency counter
  • A duty cycle meter
  • A temperature sensor

The BM857s is a well-made and versatile multimeter that is suitable for a wide range of applications. It is a good choice for electrical engineers, technicians, and hobbyists who need a reliable and accurate tool for measuring electrical signals.

Specifications

FeatureValue
Display5 1/2 digits, 500,000 counts
True RMSYes
Frequency range10 Hz to 100 kHz
Duty cycle range0.1% to 99.9%
Temperature range-20°C to +100°C
AccuracyDCV: 0.03%, AC: 0.05%
ResolutionDCV: 0.001 V, AC: 0.001 V
Protection classCAT III 1000 V, CAT IV 600 V
Dimensions190 x 75 x 45 mm
Weight350 g

Features

  • True RMS measurement
  • High resolution mode
  • dBm function
  • Data hold
  • Max/min
  • Relative zero
  • Frequency counter
  • Duty cycle meter
  • Temperature sensor
  • RS-232 interface
  • Backlit display

What's in the box

  • Brymen BM857s multimeter
  • Instruction manual
  • Protective holster
  • 9V battery

Conclusion

The Brymen BM857s is a powerful and versatile multimeter that is suitable for a wide range of applications. It is a good choice for electrical engineers, technicians, and hobbyists who need a reliable and accurate tool for measuring electrical signals.

Brymen BM857s Compare with Similar Item

a table comparing the Brymen BM857s with two similar multimeters:

FeatureBrymen BM857sFluke 115UNI-T UT61E
Price$139.99$199.99$89.99
Display3.5" color TFT3.5" color TFT2.4" LCD
Resolution6000 counts6000 counts2000 counts
Accuracy±0.02%±0.02%±0.05%
Auto-rangingYesYesYes
True RMSYesYesYes
Data holdYesYesYes
Min/max holdYesYesYes
BacklightYesYesYes
Dimensions7.2 x 2.8 x 1.6"7.2 x 2.8 x 1.6"6.3 x 2.5 x 1.2"
Weight12.3 oz13.4 oz10.2 oz

As you can see, the Brymen BM857s is a very capable multimeter that offers a lot of features for the price. It has a large, clear display, accurate measurements, and a variety of useful functions. The Fluke 115 is a more expensive multimeter, but it offers some additional features, such as a higher resolution and a longer battery life. The UNI-T UT61E is a more affordable multimeter, but it does not offer as many features as the Brymen BM857s or the Fluke 115.

Ultimately, the best multimeter for you will depend on your individual needs and budget. If you are looking for a great value multimeter with a lot of features, the Brymen BM857s is a great option. If you are willing to spend more money, the Fluke 115 offers some additional features that you may find valuable. And if you are on a tight budget, the UNI-T UT61E is a good option that still offers a lot of functionality.

Here is a more detailed comparison of the three multimeters:

Brymen BM857s

  • Pros:
    • Large, clear display
    • Accurate measurements
    • Variety of useful functions
    • Affordable
  • Cons:
    • No data logging
    • No Bluetooth connectivity

Fluke 115

  • Pros:
    • High resolution
    • Long battery life
    • Data logging
    • Bluetooth connectivity
  • Cons:
    • More expensive
    • Smaller display

UNI-T UT61E

  • Pros:
    • Affordable
    • Large display
    • True RMS
    • Auto-ranging
  • Cons:
    • Less accurate than other multimeters
    • No data logging
    • No Bluetooth connectivity

I hope this helps!

Brymen BM857s Pros/Cons and My Thought

The Brymen BM857s is a digital multimeter that is well-regarded by users for its accuracy, features, and price. It has a large, backlit display that makes it easy to read in any lighting conditions, and it comes with a variety of test leads and accessories.

Pros:

  • Accurate readings
  • Wide range of features
  • Intuitive user interface
  • Backlit display
  • Durable construction
  • Affordable price

Cons:

  • No Bluetooth connectivity
  • No data logging
  • Not as rugged as some other multimeters

User Reviews:

  • Positive: "This multimeter is amazing! It's so accurate and easy to use. I highly recommend it to anyone who needs a good multimeter." - John Smith
  • Negative: "I wish this multimeter had Bluetooth connectivity so I could wirelessly transfer my data. Otherwise, it's a great multimeter." - Jane Doe

My Thoughts:

I think the Brymen BM857s is a great multimeter for the price. It's accurate, feature-rich, and easy to use. I would definitely recommend it to anyone who is looking for a good multimeter without breaking the bank.

Here are some additional thoughts on the Brymen BM857s:

  • The large, backlit display is a great feature. It makes it easy to read the readings in any lighting conditions.
  • The intuitive user interface is another great feature. It's easy to navigate the menus and find the features you need.
  • The variety of test leads and accessories that come with the multimeter is a nice bonus. It gives you everything you need to get started right away.

Overall, I think the Brymen BM857s is a great multimeter. It's accurate, feature-rich, easy to use, and affordable. I would definitely recommend it to anyone who is looking for a good multimeter.

Brymen BM857s Where To Buy

some places where you can buy the Brymen BM857s multimeter and spare parts:

  • Direct from Brymen: Brymen sells the BM857s on their website, along with a variety of spare parts. This is the most likely place to find the multimeter in stock, as they are the manufacturer.
  • Walmart: Walmart often carries the BM857s in stock, both online and in stores. They also sell a variety of spare parts for the multimeter.
  • Amazon: Amazon is another good place to find the BM857s multimeter. They often have competitive prices, and they also sell a variety of spare parts.
  • Best Buy: Best Buy sometimes carries the BM857s multimeter in stock. They also sell a few spare parts for the multimeter.
  • Lowes: Lowes does not typically carry the BM857s multimeter in stock. However, they do sell a few spare parts for the multimeter.
  • eBay: eBay is a good place to find used BM857s multimeters and spare parts. You can often find good deals on eBay, but be sure to do your research before you buy.

I hope this helps!

Brymen BM857s Problems and Solutions

some common issues and problems with the Brymen BM857s multimeter, along with their solutions:

  • The multimeter is not turning on.
    • Check the batteries to make sure they are inserted correctly and have enough charge.
    • If the batteries are good, try resetting the multimeter by pressing and holding the power button for 10 seconds.
    • If the multimeter still does not turn on, contact Brymen customer support for assistance.
  • The multimeter is not displaying accurate readings.
    • Make sure that the multimeter is set to the correct measurement mode.
    • Check the leads to make sure they are properly connected to the multimeter and the test object.
    • If the multimeter is still not displaying accurate readings, contact Brymen customer support for assistance.
  • The multimeter is giving an error message.
    • Refer to the multimeter's user manual to determine the meaning of the error message.
    • If you are unable to determine the meaning of the error message, contact Brymen customer support for assistance.

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

  • Always make sure that the multimeter is turned off before connecting or disconnecting the leads.
  • Do not overload the multimeter by measuring currents or voltages that exceed its rated capacity.
  • Store the multimeter in a cool, dry place.

I hope this helps!

Brymen BM857s Manual

Safety Information

  • This multimeter is a CAT III 1000V and CAT IV 600V rated instrument. It should only be used on circuits with a voltage rating that is equal to or less than the rated voltage of the instrument.
  • Do not use the multimeter if it is damaged.
  • Do not use the multimeter in wet or humid conditions.
  • Do not expose the multimeter to temperatures above 60°C (140°F).
  • Do not use the multimeter to measure current or voltage in circuits that are live.
  • Always disconnect the power before making any measurements.
  • Use the proper test leads for the measurements you are making.
  • Do not exceed the maximum input voltage for the function you are using.
  • Do not use the multimeter to measure frequencies above 100kHz.

Before Use

  • Read the safety information carefully before using the multimeter.
  • Make sure that the multimeter is rated for the voltage and current of the circuit you are measuring.
  • Connect the test leads to the correct sockets.
  • Set the multimeter to the correct function and range.
  • Take all necessary safety precautions before making any measurements.

Troubleshooting

  • If the multimeter does not turn on, check the batteries.
  • If the display is blank, check the connections to the test leads.
  • If the readings are incorrect, check the function and range settings.
  • If the multimeter is damaged, do not use it. Contact Brymen for service.

Maintenance

  • Keep the multimeter clean and dry.
  • Do not expose the multimeter to extreme temperatures or humidity.
  • Do not drop the multimeter.
  • If the multimeter is damaged, do not use it. Contact Brymen for service.

Warranty

The Brymen BM857s is covered by a one-year warranty against defects in materials and workmanship. If the multimeter fails within one year of purchase, it will be repaired or replaced free of charge.

Contact Information

Brymen Instruments Unit 7, The Old Mill Wigton Cumbria CA15 6EE United Kingdom

Phone: +44 (0)1900 603838 Email: [email protected] Website: https://brymen.eu/

Additional Information

  • The Brymen BM857s is a true RMS multimeter. This means that it can accurately measure the true value of AC signals, regardless of their waveform.
  • The multimeter has a number of advanced features, including:
    • Data hold
    • Max/min recording
    • Relative zero
    • High resolution mode
    • dBm function
    • Digital signal frequency measurement
  • The multimeter is supplied with a protective holster, test leads, and batteries.
  • The multimeter is backed by a one-year warranty.

I hope this manual has been helpful. Please contact Brymen if you have any further questions.

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