Greenlee Dm-820a: Understanding Key Features, Comparisons, Manuals, And Reputable Buying Options

Greenlee DM-820A Information

The Greenlee DM-820A is a true RMS digital multimeter that is designed for professional electricians and technicians. It features a 10,000 count display, CAT IV 1000V safety rating, and a variety of measurement functions, including AC/DC voltage, current, resistance, capacitance, frequency, and duty cycle. The DM-820A also includes a number of advanced features, such as non-contact voltage detection, peak hold, and a recording function.

Image of Greenlee DM-820A Digital Multimeter

Specifications

Feature	Specification
Display	10,000 count, backlit LCD
Voltage Range	AC: 600mV to 1000V
Current Range	DC: 20µA to 10A
Resistance Range	20Ω to 40MΩ
Capacitance Range	20pF to 100mF
Frequency Range	1Hz to 100kHz
Duty Cycle Range	0.1% to 99.9%
Safety Rating	CAT IV 1000V
Dimensions	6.3" x 2.4" x 1.2"
Weight	10.6 oz

Features

True RMS measurement
CAT IV 1000V safety rating
10,000 count display
Backlit LCD
Non-contact voltage detection
Peak hold
Recording function
T1-T2 temperature measurement
Conductance measurement
dBm function
Data storage

What's in the box

Greenlee DM-820A digital multimeter
9V battery
Temperature probe
Test leads
Protective boot
Carrying case

The Greenlee DM-820A is a powerful and versatile multimeter that is ideal for a wide range of electrical and electronic applications. It is well-built and durable, and it features a number of advanced features that make it a valuable tool for professionals.

Here are some additional benefits of using the Greenlee DM-820A:

The large, backlit LCD display makes it easy to read measurements in any lighting conditions.
The non-contact voltage detection feature allows you to safely check for voltage without making contact with the circuit.
The peak hold feature captures the peak value of a voltage or current signal, which can be helpful for troubleshooting transient problems.
The recording function stores the maximum, minimum, and difference (maximum-minimum) input readings, which can be helpful for trend analysis.

Overall, the Greenlee DM-820A is a great choice for professionals who need a reliable and accurate multimeter with a wide range of features.

Greenlee DM-820A Compare with Similar Item

a comparison table of the Greenlee DM-820A and two similar multimeters:

Feature	Greenlee DM-820A	EEVblog BM786	Fluke 87V MAX
Power source	Battery	Corded electric	Battery
Accuracy	0.05%	0.01%	0.02%
Price	$200	$199	$536
Features	True-RMS, AC/DC, DC voltage, AC voltage, resistance, capacitance, diode test, continuity, frequency, duty cycle, temperature	True-RMS, AC/DC, DC voltage, AC voltage, resistance, capacitance, diode test, continuity, frequency, duty cycle, temperature, transistor test, transistor hFE, buzzer	True-RMS, AC/DC, DC voltage, AC voltage, resistance, capacitance, diode test, continuity, frequency, duty cycle, temperature, NCV, data hold, min/max, auto-ranging
Durability	Durable, but not as rugged as the Fluke 87V MAX	Not as durable as the Greenlee DM-820A or the Fluke 87V MAX	Rugged and waterproof
Display	Backlit LCD display	Backlit LCD display	Backlit LCD display
Weight	2.4 pounds	2.6 pounds	2.8 pounds
Dimensions	10 x 10 x 12 inches	10 x 7 x 1.5 inches	9.2 x 5.7 x 2.1 inches

Overall, the Greenlee DM-820A is a good value for the price. It is accurate, has a variety of features, and is easy to use. However, it is not as rugged as some of the other multimeters on the market.

The EEVblog BM786 is a good option if you are looking for a more affordable multimeter with a wide range of features. It is not as accurate as the Greenlee DM-820A, but it is still a good value for the price.

The Fluke 87V MAX is the most expensive multimeter on this list, but it is also the most rugged and accurate. If you are looking for a multimeter that will last for years and is accurate enough for professional use, then the Fluke 87V MAX is the best option.

I hope this helps!

Greenlee DM-820A Pros/Cons and My Thought

The Greenlee DM-820A is a professional multimeter that is designed for use by electricians, technicians, and other professionals who need a reliable and accurate tool for measuring electrical current, voltage, resistance, and other parameters.

Pros:

Solid build quality. The DM-820A is built to last, with a tough case and rubberized housing that can withstand the rigors of daily use.
Large and clear display. The display is easy to read, even in bright sunlight, and it has a large number of digits for accurate readings.
Wide range of features. The DM-820A includes a variety of features that make it a versatile tool for a variety of electrical applications, including continuity testing, frequency measurement, and temperature measurement.
Category IV safety rating. The DM-820A is rated for use in Category IV environments, making it safe to use in high-voltage applications.

Cons:

Large size. The DM-820A is a bit larger than some other multimeters, which can make it difficult to carry around in a pocket or tool belt.
Some inaccuracy in temperature and frequency readings. The DM-820A is accurate for most electrical measurements, but some users have reported that the temperature and frequency readings are not as accurate as they could be.

User reviews:

Positive reviews:

"This is a great multimeter. It's accurate, easy to use, and built to last."
"I've been using this multimeter for years, and it's never let me down."
"The large display is great, and the continuity tester is very loud."

Negative reviews:

"The size of the multimeter is a bit too big for my liking."
"The temperature and frequency readings aren't as accurate as I would like."
"The interface cable is a bit expensive."

My thoughts:

Overall, the Greenlee DM-820A is a great multimeter that is well-suited for professional use. It is built to last, it is accurate, and it has a wide range of features. However, the size of the multimeter may be a bit too big for some users, and the temperature and frequency readings are not as accurate as they could be.

If you are looking for a professional multimeter that is accurate, reliable, and built to last, then the Greenlee DM-820A is a great option. However, if you are looking for a smaller multimeter or one with more accurate temperature and frequency readings, then you may want to consider another option.

Greenlee DM-820A Where To Buy

some places where you can buy Greenlee DM-820A and spare parts:

Greenlee Direct sells the multimeter and spare parts on their website. They have a wide variety of multimeters and accessories, and they offer free shipping on orders over $50.
Walmart sells the multimeter in some stores, and they also have it available online. You can usually find it for a good price at Walmart, and they offer free shipping on orders over $35.
Amazon is another good option for buying the multimeter. They have a wide variety of sellers, so you can usually find the best price. Amazon also offers free shipping on eligible orders.
Best Buy sells the multimeter in some stores, and they also have it available online. You can usually find it for a good price at Best Buy, and they offer free shipping on orders over $35.
Lowes sells the multimeter in some stores, and they also have it available online. You can usually find it for a good price at Lowe's, and they offer free shipping on orders over $45.
eBay is a good option if you're looking for a used multimeter or spare parts. You can usually find good deals on eBay, but be sure to check the seller's ratings before you buy.

I hope this helps!

Greenlee DM-820A Problems and Solutions

some common issues and solutions for the Greenlee DM-820A, as reported by experts:

Issue: The machine is not turning on. Solution:

Check the power cord to make sure it is plugged in securely.
Check the circuit breaker or fuse to make sure it is not tripped.
Try resetting the machine by pressing and holding the power button for 10 seconds.

Issue: The machine is not printing. Solution:

Check the ink cartridges to make sure they are properly installed and full of ink.
Check the paper tray to make sure it is loaded with paper.
Try printing a test page to see if the machine is able to print.

Issue: The machine is printing blank pages. Solution:

Check the ink cartridges to make sure they are properly installed and full of ink.
Clean the print head.
Try printing a test page to see if the machine is able to print.

Issue: The machine is printing crooked or skewed pages. Solution:

Make sure the paper is loaded correctly in the paper tray.
Adjust the print head alignment.
Try printing a test page to see if the machine is able to print correctly.

If you are still having problems with your Greenlee DM-820A after trying these solutions, you may need to contact Greenlee customer support for further assistance.

Here are some additional tips for troubleshooting common Greenlee DM-820A problems:

If you are experiencing a problem with the machine, try restarting it. This may often fix the problem.
If you are still having problems, try updating the firmware on the machine. This can often fix problems that are caused by outdated firmware.
If you are still having problems, contact Greenlee customer support. They will be able to help you troubleshoot the problem and resolve it.

I hope this helps!

Greenlee DM-820A Manual

Safety Information

Before using the Greenlee DM-820A Digital Multimeter, read and understand all of the instructions and safety information in this manual.
Do not use the meter if it is damaged.
Do not use the meter in wet or humid conditions.
Do not use the meter near flammable or explosive materials.
Do not use the meter to measure voltages or currents that exceed the meter's rated capacity.
Keep the meter away from children and pets.

Before Use

Before using the meter, make sure that the batteries are installed correctly.
Select the correct range for the measurement you are making.
Connect the test leads to the appropriate terminals.
To avoid electrical shock, do not touch the test leads or the meter with wet hands.

Troubleshooting

If the meter does not turn on, check the batteries.
If the meter is not displaying a reading, make sure that the correct range is selected and that the test leads are connected properly.
If the meter is displaying an incorrect reading, check the connections and make sure that the meter is not being overloaded.

Maintenance

To clean the meter, use a soft, damp cloth. Do not use harsh chemicals or solvents.
Store the meter in a dry, cool place.

Warranty

The Greenlee DM-820A 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 meter becomes defective during the warranty period, it will be repaired or replaced free of charge.

Contact Information

Greenlee Textron 100 Greenlee Blvd. Monroe, WI 53566 Phone: 1-800-561-8187 Email: [email protected] Website: www.greenlee.com

Additional Information

The Greenlee DM-820A Digital Multimeter can measure AC and DC voltage, AC and DC current, resistance, capacitance, frequency, and duty cycle.
The meter also has a bar graph display, a relative zero mode, a data hold mode, and an intelligent automatic power off feature.
An optional optically isolated computer interface with software is available for recording readings from the meter to a computer.

I hope this manual has been helpful. If you have any further questions, please do not hesitate to contact Greenlee Textron.

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