For your industrial testing requirements, are you seeking for a trustworthy and precise multimeter? Do you wish to easily and precisely measure different electrical parameters like voltage, current, resistance, capacitance, frequency, and temperature? Do you wish to evaluate the various features and capabilities of various models to get the ideal one for your unique circumstance?
This page is for you if you replied “yes” to any of these inquiries. The EXTECH EX623 400A Dual Input ACDC Clamp Meter NCV IR Thermometer, the EXTECH EX840 1000A AC DC True RMS Clamp DMM IR Thermometer, and the FLIR DM93 True RMS Industrial Multimeter will all be compared in this article. To assist you in making a wise choice, we will examine their essential characteristics, advantages and disadvantages, and costs.
But first, let’s discuss what a multimeter is and why you might need one before moving on to the comparison.
Why do you need a multimeter and what does it do?
The electrical parameters voltage, current, resistance, capacitance, frequency, and temperature can all be measured using a multimeter. It can also carry out other tasks like continuity and diode testing. Both digital and analog multimeters are available, although digital multimeters are more popular and preferred today because to their increased accuracy, readability, and feature set.
Anyone who works with electricity or electronics needs to have a multimeter. It can aid in problem-solving, component testing, connection verification, performance monitoring, and safety assurance. A multimeter can assist you with your projects and activities whether you are an electrician, mechanic, engineer, or hobbyist.
But not every multimeter is made equal. Multimeters come in a variety of designs with a range of features and capabilities to meet a variety of purposes and applications.
While some multimeters are intended for general usage, others are tailored for use in certain fields or settings. While some multimeters only have basic capabilities, others can monitor complicated signals and even interface wirelessly with other equipment.
Therefore, it’s crucial to pick the multimeter that best suits your requirements and tastes. Considerations should be made for things like accuracy, resolution, range, speed, safety, durability, display quality, usability, and cost. To choose which model and brand is best for you, you must also compare several options.
In response, we are here. We did the investigation and comparison for you. From the site:mme-ae.com, we have chosen three well-known multimeters that are appropriate for testing industrial processes. To assist you in making a wise choice, we have contrasted their essential attributes, benefits, and costs.
Let’s get going.
Dual Input ACDC Clamp Meter NCV IR Thermometer EXTECH EX623
The versatile EXTECH EX623 is capable of measuring True RMS AC voltage and current, dual type K thermocouple input with differential temperature function, non-contact IR temperature with laser pointer, non-contact voltage detector with LED alert, DC A for flame rod tests, capacitance, frequency, resistance, continuity, and diode test. It includes a 4000 count backlit display and a 40mm jaw size. It includes a carrying case, two type K bead wire probes, test leads, and a 9V battery.
If you need to measure twin type K thermocouples or flame rod currents, the EXTECH EX623 is the best choice. The differential temperature function enables you to concurrently measure the temperatures of two sites and compare them. This is made possible by dual type K thermocouple input.
Applications like inspecting heat exchangers, HVAC systems, and refrigeration systems can all benefit from this. The flame sensors in heating systems can be tested with flame rod current measurement to make sure they are functioning properly.
Additionally, the EXTECH EX623 offers functions for non-contact voltage detection and non-contact IR temperature monitoring, which are useful for hard-to-reach or hot surfaces or live wires.
With the laser pointer, you can test an object’s surface temperature without touching it and find voltage without coming into contact with it. You can save time and effort and prevent burns or electric shocks by doing this.
You can use the EXTECH EX623 for testing and troubleshooting because it also offers other multimeter features including capacitance, frequency, resistance, continuity, and diode test.
It has a 4000 count backlit display that can show two readings simultaneously and a 40mm jaw size that can clamp around conductors up to 30mm in diameter. It is portable and simple to use because it comes with test leads, a 9V battery, two type K bead wire probes, and a carrying case.
Pros:
Temperature readings at two sites are possible simultaneously using a dual type K thermocouple input.
For heated or difficult-to-reach surfaces, non-contact infrared temperature measuring is practical and secure.
Untouchable live wire detection is made possible using a non-contact voltage detector.
For testing flame sensors in heating systems, the DC A function is helpful.
In motors and HVAC systems, start and run capacitors can be measured using the capacitance function.
Cons:
For some applications, the jaw size might not be sufficient.
There is no peak hold function for capturing transients or inrush currents.
No VFD mode for studying noisy signals or variable frequency drivers
not having Bluetooth or data logging capabilities
Thermometer EXTECH EX840 1000A AC DC True RMS Clamp
The EXTECH EX840 is a potent instrument that can test diodes and measure True RMS AC/DC voltage and current, peak hold for inrush currents and transients, non-contact IR temperature, frequency, resistance, continuity, and more.
It has a 4000 count backlit display and a 43mm jaw opening for conductors up to 750MCM or two 500MCM. Standard test leads, a 9V battery, a multipurpose type K probe, a belt holster, and expert CAT III-1000V test leads are included.
If you need to monitor large current surges or spikes, thick conductors, or several conductors, the EXTECH EX840 is the perfect choice for you. Peak hold function can record and display strong current surges or spikes in electrical systems like motors or transformers.
This can aid in problem diagnosis or performance verification. In industrial applications like power distribution or welding, thick or numerous conductors are frequently used, and a large jaw opening can accommodate them. You can measure current using this without disrupting the circuit.
Additionally, the EXTECH EX840 offers a non-contact IR temperature monitoring feature that is practical and secure for hot or difficult-to-reach surfaces. Using a laser pointer, you can gauge an object’s surface temperature without ever touching it. You can save time and effort and prevent burns or electric shocks by doing this.
You can use the EXTECH EX840 for testing and troubleshooting purposes as well as other multimeter features including capacitance, frequency, resistance, continuity, and diode test. It has a lighted, 4000 count display that can simultaneously show two readings.
It includes professional CAT III-1000V test leads that are rated for higher voltage and safety in addition to standard test leads, a 9V battery, a general-purpose type K probe, a belt holster, and all of the above.
Pros:
Electrical systems’ peak hold function can record significant current surges or spikes.
Thick or many conductors can fit in the large jaw aperture.
No matter the distortion or waveform shape, true RMS measurement provides reliable measurements of AC voltage and current.
Professional test leads have greater voltage ratings and are safer.
Cons:
No feature for a non-contact voltage detector
No VFD mode for studying noisy signals or variable frequency drivers
not having Bluetooth or data logging capabilities
True RMS Industrial Multimeter FLIR DM93
The FLIR DM93 is a high-quality instrument that measures True RMS AC/DC voltage and current as well as capacitance, frequency, resistance, continuity, and diode testing. It also has a VFD mode for non-sinusoidal waveforms and noisy signals in variable frequency drives as well as a LoZ mode for removing ghost voltage readings.
It boasts brilliant twin LED worklights and inbuilt memory for 99 records. For remote viewing and data transfer, it also supports METERLiNK and Bluetooth connectivity. It carries a guaranteed lifetime warranty with ratings of CAT IV 600V and CAT III 1000V.
If you need to measure ghost voltages, variable frequency drives, or remotely interface with other devices, the FLIR DM93 is the best option for you. Variable frequency drives, such as fans, pumps, compressors, conveyors, and elevators, are frequently employed in industrial applications.
VFD mode can properly detect voltage and frequency of these drives. By altering the motor speed to match the load requirement, variable frequency drives can reduce energy consumption and boost system efficiency. They can, however, also generate noisy signals and non-sinusoidal waveforms that can obstruct precise observations.
These distortions can be filtered out using VFD mode, which produces accurate readings. LoZ mode can stop misleading readings brought on by stray voltages that might exist in capacitive circuits or long cable lines.
Static electricity and electromagnetic induction can produce stray voltages, which can cause the multimeter to show a voltage when there is none. The multimeter’s input impedance can be lowered by using LoZ mode, which also gets rid of the ghost voltages.
The FLIR DM93 also supports METERLiNK and Bluetooth connectivity, enabling wireless data analysis and reporting with compatible devices like smartphones, tablets, or thermal cameras.
The FLIR Tools app allows you to examine real-time readings, collect data, generate reports, and distribute them to co-workers or clients.
Additionally, you may incorporate electrical measurements into the thermal images captured by FLIR infrared cameras using the METERLiNK function. You can use this to find problem areas, solve puzzles, and record outcomes.
Other multimeter features on the FLIR DM93, like capacitance, frequency, resistance, continuity, and diode testing, can support your testing and troubleshooting requirements. It boasts brilliant twin LED worklights that can light up dimly lit situations and an inbuilt memory for 99 tracks. It is safe and durable in challenging circumstances thanks to its CAT IV 600V and CAT III 1000V ratings. Additionally, it comes with a limited lifetime warranty that gives customers confidence in the product’s quality and peace of mind.
Pros:
The voltage and frequency of variable frequency drives, which are frequently used in industrial applications, can be precisely measured in VFD mode.
Ghost voltage readings that may interfere with precise measurements can be eliminated via LoZ mode.
Wireless communication with compatible devices is made possible through METERLiNK and Bluetooth connectivity for data reporting and analysis.
A limited lifetime warranty gives customers confidence in the product’s quality and peace of mind.
Cons:
no differential temperature function or input for a second type K thermocouple
No feature for a non-contact voltage detector
There is no peak hold function for capturing transients or inrush currents.
For some applications, the jaw size might not be sufficient.
Conclusion:
As you can see, based on your requirements and tastes, each of these multimeters has distinct advantages and disadvantages. To sum up, the following crucial factors should be taken into account when deciding between them:
The EXTECH EX623 is the best choice if you need to measure twin type K thermocouples or flame rod currents.
The EXTECH EX840 is the best choice if you need to measure large current surges or spikes, thick conductors, or many conductors.
The FLIR DM93 is the best choice if you need to detect variable frequency drives, ghost voltages, or remotely connect to other devices.
We hope that this comparison article from the website mme-ae.com has you in your understanding of the differences and similarities among these three multimeters. On our website, you may learn more about these items as well as additional Flir and Extech products. Please don’t hesitate to get in touch with us if you have any queries or comments. We’d be thrilled to hear from you. I appreciate you reading.
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