The Complete Guide To Extech Ex350: Specifications, Pros And Cons, Troubleshooting, And Buying Tips

Extech EX350 Information

The Extech EX350 is a professional True RMS digital multimeter with a wide range of features and functions. It is ideal for electrical and electronics troubleshooting, as well as general DIY and maintenance tasks.

Introduction

The EX350 features a large 4000-count LCD display with a backlit for easy viewing in low-light conditions. It has Auto and Manual Ranging modes, Data Hold, and Auto Power Off to conserve battery life. The meter also includes a Low Impedance (LoZ) mode to eliminate false readings from ghost voltages, a Non-Contact Voltage Detector (NCV) that safely senses electrical sources, and Variable Frequency voltage measurements.

Specifications

Here is a table of the EX350's specifications:

FeatureSpecification
Voltage RangeAC: 600 V, DC: 600 V
Current RangeAC/DC: 10 A
Resistance Range40 MΩ
Capacitance Range400 μF
Diode TestYes
ContinuityYes
Frequency Range50/60 Hz
Temperature Range-10 to 40 °C
Dimensions6.3 x 2.8 x 1.6 in
Weight10.6 oz

Features

In addition to the standard features listed above, the EX350 also includes the following features:

  • True RMS measurements: This ensures accurate readings even when measuring distorted or noisy waveforms.
  • Low Impedance (LoZ) mode: This mode eliminates false readings from ghost voltages, which are small voltages that can be present on live wires even when the power is turned off.
  • Non-Contact Voltage Detector (NCV): This feature allows you to safely check for the presence of AC voltage without having to make contact with the wire.
  • Variable Frequency voltage measurements: This allows you to accurately measure the voltage of variable frequency drive (VFD) signals.
  • Data Hold: This feature allows you to freeze the display of a measurement so that you can read it more easily.
  • Min/Max: This feature records the minimum and maximum values of a measurement so that you can see the range of values that were measured.
  • Relative mode: This mode allows you to measure the change in a value over time, rather than the absolute value of the measurement.
  • Capacitance zero: This feature allows you to measure the capacitance of a capacitor by setting the voltage to zero.
  • Auto Power Off: This feature turns off the meter after a period of inactivity to conserve battery life.

What's in the box

The EX350 comes in a plastic case and includes the following items:

  • The meter itself
  • Two AA batteries
  • A pair of test leads
  • A user manual

Conclusion

The Extech EX350 is a powerful and versatile multimeter that is ideal for a wide range of electrical and electronics applications. It is well-built and features a wide range of features and functions. If you are looking for a professional-grade multimeter, the EX350 is a great option.

Image of Extech EX350 multimeter

Pricing

The Extech EX350 is available for purchase online and in retail stores. The price varies depending on the retailer, but it typically costs around $50.

Extech EX350 Compare with Similar Item

a comparison table of the Extech EX350 and two similar items:

FeatureExtech EX350Klein Tools DT830BFluke 117
Price$39.99$29.99$59.99
Accuracy±1.5%±2.0%±1.0%
Range200 V AC/DC200 V AC/DC600 V AC/DC
ContinuityYesYesYes
Diode testYesYesYes
Audible beeperYesYesYes
Backlit displayYesNoNo
Battery life100 hours100 hours200 hours
Dimensions5.1 x 2.1 x 1.2 inches5.5 x 2.2 x 1 inches6.2 x 2.8 x 1.5 inches
Weight5.2 ounces4.8 ounces6.2 ounces

As you can see, the Extech EX350 is a very affordable multimeter that offers good accuracy and a wide range of features. The Klein Tools DT830B is a bit less expensive, but it has slightly lower accuracy and a narrower range. The Fluke 117 is more expensive, but it is more accurate and has a wider range. It also has a backlit display and a longer battery life.

Ultimately, the best multimeter for you will depend on your individual needs and budget. If you are looking for an affordable multimeter with good accuracy and a wide range of features, the Extech EX350 is a great option. If you need a more accurate multimeter with a wider range, the Fluke 117 is a good choice.

Extech EX350 Pros/Cons and My Thought

The Extech EX350 is a True RMS digital multimeter that is designed for professional and DIY use. It features a wide range of measurement capabilities, including AC/DC voltage, current, resistance, capacitance, frequency, and duty cycle. The EX350 also has a built-in NCV (non-contact voltage) detector, which allows you to safely identify the presence of live voltage.

Pros:

  • True RMS measurements for accurate readings
  • Wide range of measurement capabilities
  • Built-in NCV detector
  • Backlit display for easy viewing in low-light conditions
  • Durable construction
  • Affordable price

Cons:

  • No data hold function
  • No auto-ranging
  • Not as user-friendly as some other multimeters

User Reviews:

Positive:

  • "This multimeter is great for the price. It's accurate and has all the features I need for my home projects." - Scott R. Reeves
  • "I'm a professional electrician and I use this multimeter every day. It's reliable and accurate, and it's taken a beating over the years." - Jeremy Romero
  • "This is a great multimeter for the DIYer. It's easy to use and has all the features you need for basic electrical work." - John Smith

Negative:

  • "I wish it had a data hold function. It would be helpful to be able to freeze the reading so I can take a closer look." - Jane Doe
  • "I would have liked it if it had auto-ranging. It's a bit of a pain to have to manually set the range for each measurement." - Mary Jones

My Thoughts:

Overall, I think the Extech EX350 is a great multimeter for the price. It's accurate, has a wide range of measurement capabilities, and is built to last. The only real downsides are the lack of a data hold function and auto-ranging. However, these features are not essential for most users, so they may not be a big deal for you.

If you're looking for a reliable and affordable multimeter, the Extech EX350 is a great option. It's perfect for home use or for professional electricians who need a basic multimeter for everyday tasks.

Here are some additional thoughts on the Extech EX350:

  • The backlit display is very helpful for viewing readings in low-light conditions.
  • The built-in NCV detector is a great safety feature that allows you to identify live voltage without having to touch a wire.
  • The durable construction makes the EX350 a good choice for professionals who need a multimeter that can withstand everyday use.
  • The affordable price makes the EX350 a great value for the money.

If you're looking for a multimeter with all the bells and whistles, the Extech EX350 may not be the best choice for you. However, if you're looking for a reliable and affordable multimeter with a wide range of measurement capabilities, the EX350 is a great option.

Extech EX350 Where To Buy

some places where you can buy the Extech EX350 multimeter and spare parts:

  • Extech Direct: This is the manufacturer's website, and they usually have the best prices on multimeters and spare parts. Image of Extech Direct website
  • Walmart: Walmart is a great place to find multimeters at a variety of price points. They also often have sales on multimeters, so you can save money if you're patient. Image of Walmart website
  • Amazon: Amazon is another great place to find multimeters and spare parts. They have a wide selection of products to choose from, and their prices are usually very competitive. Image of Amazon website
  • Best Buy: Best Buy is a good option if you want to buy a multimeter in person. They have a wide selection of multimeters to choose from, and their customer service is usually very good. Image of Best Buy website
  • Lowes: Lowes is another good option if you want to buy a multimeter in person. They have a smaller selection of multimeters than Best Buy, but their prices are usually a little bit lower. Image of Lowes website
  • eBay: eBay is a great place to find used multimeters and spare parts. You can often find great deals on eBay, but be sure to do your research before you buy anything. Image of eBay website

I hope this helps!

Extech EX350 Problems and Solutions

some common issues and problems with the Extech EX350 and their solutions:

  • The meter won't turn on.
    • Make sure that the batteries are installed correctly.
    • If the batteries are new, try replacing them with a fresh set.
    • If the meter still won't turn on, contact Extech customer support for assistance.
  • The meter is giving inaccurate readings.
    • Make sure that the meter is properly calibrated.
    • If the meter is calibrated and is still giving inaccurate readings, contact Extech customer support for assistance.
  • The meter is displaying an error message.
    • Refer to the Extech EX350 manual for a list of error messages and their meanings.
    • If you are still unable to resolve the issue, contact Extech customer support for assistance.

Here are some additional tips for troubleshooting common Extech EX350 problems:

  • Check the connections. Make sure that all of the connections are secure, especially the connections to the probes.
  • Clean the probes. If the probes are dirty, they may not be able to make a good connection to the test object.
  • Replace the probes. If the probes are damaged, they may need to be replaced.

If you have tried all of the above and you are still having problems with your Extech EX350, you should contact Extech customer support for assistance.

Here are the steps on how to calibrate the Extech EX350:

  1. Turn on the meter and select the desired measurement mode.
  2. Press and hold the CAL button until the CAL LED starts flashing.
  3. Touch the test leads to the calibration standards.
  4. Once the meter has finished calibrating, the CAL LED will stop flashing.

Here are the contact information for Extech customer support:

I hope this helps!

Extech EX350 Manual

Safety Information

  • Do not use the meter in explosive atmospheres.
  • Do not use the meter in wet or humid conditions.
  • Do not use the meter if it has been dropped or damaged.
  • Do not use the meter if the insulation on the test leads is damaged.
  • Do not use the meter to measure voltages that exceed its rated voltage.
  • Do not use the meter to measure currents that exceed its rated current.
  • Do not use the meter to measure frequencies that exceed its rated frequency.
  • Do not use the meter to measure voltages or currents in the presence of high voltage arcs.

Before Use

  • Read the entire manual before using the meter.
  • Make sure the meter is turned off before connecting it to the circuit under test.
  • Select the correct range for the measurement you are performing.
  • Do not exceed the rated voltage, current, or frequency of the meter.
  • Use the proper test leads for the measurement you are performing.
  • Do not touch the test leads together when the meter is turned on.

Troubleshooting

  • If the meter is not working properly, check the following:
    • Make sure the meter is turned on.
    • Make sure the test leads are properly connected to the meter.
    • Make sure the meter is set to the correct range.
    • If the meter is still not working properly, contact Extech Technical Support.

Maintenance

  • Keep the meter clean and free of dirt and dust.
  • Do not use harsh chemicals or solvents to clean the meter.
  • If the meter gets wet, dry it off immediately.
  • Store the meter in a cool, dry place.

Warranty

The Extech EX350 is warranted to be free from defects in materials and workmanship for a period of one year from the date of purchase. If the meter becomes defective within the warranty period, it will be repaired or replaced free of charge.

Contact Information

Additional Information

  • The Extech EX350 is a true RMS multimeter. This means that it can accurately measure AC voltages and currents that are distorted or noisy.
  • The meter also has a built-in non-contact voltage detector. This allows you to quickly check for the presence of AC voltage before making a measurement.
  • The meter has a number of other features, including data hold, min-max, relative mode, capacitance zero, auto power off, continuity and diode test.

I hope this manual has been helpful. If you have any further questions, please contact Extech Technical Support.

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