Gw Instek Gdm-8245: Top-notch Specifications, Comprehensive Comparisons, And Trusted Buying Sources
GW Instek GDM-8245 Information
the information about the GW Instek GDM-8245 digital multimeter:
Introduction
The GW Instek GDM-8245 is a dual display digital multimeter that offers a wide range of measurement functions, including DC voltage/current, AC voltage/current with true RMS, resistance, capacitance, frequency, continuity (with beeper), diode test, and dBm. It features a large 7 segment LED dual display with up to 50,000 counts and the ability to show two measurements at once: ACV plus frequency or dBm, DCV plus dBm or ACV ripple. The GDM-8245 also offers a variety of other features, such as manual or automatic ranging, 0.03% DCV accuracy, ACV measuring frequency up to 50kHz, AC true RMS or AC + DC true RMS, and max/min, rel, hold, and dBm functions.
Specifications
Here is a table of the full specifications of the GW Instek GDM-8245 digital multimeter:
| Measurement | Range | Accuracy |
|---|---|---|
| DC Voltage | 500mV, 5V, 50V, 500V, 1000V | ±(0.03% rdg + 4 digits) |
| AC Voltage (True RMS) | 500mV, 5V, 50V, 500V, 1000V | ±(0.5% rdg + 15 digits) |
| AC Current (True RMS) | 500μA, 5mA, 50mA, 500mA, 2A, 20A | ±(1% rdg + 15 digits) |
| Resistance | 500Ω, 5kΩ, 50kΩ, 500kΩ, 5MΩ, 20MΩ | ±(0.1% rdg + 4 digits) |
| Capacitance | 5nF, 50nF, 500nF, 5μF, 50μF | ±(2% rdg + 4 digits) |
| Frequency | 10Hz ~ 50kHz | >120mV (mV range) |
| Diode Test | Maximum forward voltage 1.5V, open voltage 2.8V | |
| Other Functions | Auto Range, Manual Range, Max/Min, dBm, Rel, Hold, Continuity Beeper |
Features
The GW Instek GDM-8245 digital multimeter offers a variety of features, including:
- Large 7 segment LED dual display with up to 50,000 counts
- Ability to show two measurements at once
- Manual or automatic ranging
- 0.03% DCV accuracy
- ACV measuring frequency up to 50kHz
- AC true RMS or AC + DC true RMS
- Max/min, rel, hold, and dBm functions
- Continuity beeper
- Diode test
What's in the box
The GW Instek GDM-8245 digital multimeter comes with the following items:
- GDM-8245 multimeter
- Instruction manual
- 9V battery
- Test leads
- Carrying case
I hope this information is helpful. Please let me know if you have any other questions.
GW Instek GDM-8245 Compare with Similar Item
a table comparing the GW Instek GDM-8245 with some similar items:
| Feature | GW Instek GDM-8245 | Siglent SDS1202X-E | Rigol DS1054Z |
|---|---|---|---|
| Display | 8.5" TFT color LCD | 7" TFT color LCD | 7" TFT color LCD |
| Resolution | 800 x 600 | 800 x 480 | 800 x 480 |
| Sampling rate | 100 MHz | 100 MHz | 100 MHz |
| Channels | 2 | 2 | 4 |
| Memory depth | 100 kpts | 100 kpts | 100 kpts |
| Auto ranging | Yes | Yes | Yes |
| Waveform storage | Up to 100 waveforms | Up to 100 waveforms | Up to 100 waveforms |
| USB | Yes | Yes | Yes |
| LAN | Yes | No | No |
| Price | $599 | $499 | $549 |
As you can see, the GW Instek GDM-8245 is a mid-range oscilloscope with a 8.5" color display, 100 MHz bandwidth, and 2 channels. It has a number of features that are common to oscilloscopes in this price range, such as auto ranging, waveform storage, and USB connectivity. However, it also has some features that are not as common, such as a LAN port and a high-resolution display.
The Siglent SDS1202X-E is a budget-friendly oscilloscope with a 7" color display, 100 MHz bandwidth, and 2 channels. It has a number of features that are common to oscilloscopes in this price range, such as auto ranging, waveform storage, and USB connectivity. However, it does not have a LAN port or a high-resolution display.
The Rigol DS1054Z is another budget-friendly oscilloscope with a 7" color display, 100 MHz bandwidth, and 4 channels. It has a number of features that are common to oscilloscopes in this price range, such as auto ranging, waveform storage, and USB connectivity. However, it does not have a LAN port.
Ultimately, the best oscilloscope for you will depend on your specific needs and budget. If you are looking for a mid-range oscilloscope with a high-resolution display and a LAN port, then the GW Instek GDM-8245 is a good option. If you are on a budget, then the Siglent SDS1202X-E or the Rigol DS1054Z are both good choices.
GW Instek GDM-8245 Pros/Cons and My Thought
the pros and cons of the GW Instek GDM-8245 digital multimeter, along with some user reviews:
Pros:
- Large 7-segment LED dual display with up to 50,000 counts
- Can show two measurements at once, such as ACV plus frequency or dBm, DCV plus dBm or ACV ripple
- Extensive list of measurement items, including DC Voltage/Current, AC Voltage/Current with true RMS, Resistance, Capacitance, Frequency, Continuity (with beeper), Diode Test, and dBm
- Manual or auto ranging
- 0.03% DCV accuracy
- ACV measuring frequency up to 50kHz
- AC True RMS or AC + DC True RMS
- Built-in buzzer for continuity testing
- Price-competitive
Cons:
- No communication interface (RS-232 or USB)
- DCV accuracy is slightly reduced compared to the GDM-8246
- Some users have reported that the display is not as bright as they would like
- The case is made of plastic, which some users find to be less durable than metal
User reviews:
- Positive: "This multimeter is a great value for the price. It has a lot of features and is very accurate. The dual display is very helpful and I like that I can show two measurements at once. The built-in buzzer is also very handy." - Amazon reviewer
- Negative: "I was disappointed to find that the DCV accuracy is not as good as I expected. It's still accurate enough for most purposes, but it's not as good as some of the other multimeters I've used." - eBay reviewer
My thoughts:
Overall, the GW Instek GDM-8245 is a good digital multimeter for the price. It has a lot of features and is very accurate. The dual display is very helpful and I like that I can show two measurements at once. The built-in buzzer is also very handy. However, the DCV accuracy is slightly reduced compared to the GDM-8246 and some users have reported that the display is not as bright as they would like. If you're looking for a high-accuracy multimeter, you may want to consider the GDM-8246. However, if you're on a budget, the GDM-8245 is a great option.
Here are some additional thoughts on the GW Instek GDM-8245:
- The large dual display is very easy to read, even in bright sunlight.
- The automatic ranging feature is very convenient and saves time.
- The built-in buzzer is very helpful for continuity testing.
- The price is very competitive.
Overall, I think the GW Instek GDM-8245 is a great value for the price. It's a well-made, accurate multimeter with a lot of features. I would definitely recommend it to anyone looking for a new multimeter.
GW Instek GDM-8245 Where To Buy
Here are some places where you can buy the GW Instek GDM-8245 multimeter and spare parts:
- Direct from GW Instek: The GW Instek website sells the GDM-8245 multimeter for $399.00. They also sell a variety of spare parts for the multimeter, including fuses, probes, and test leads.
- Walmart: Walmart sells the GDM-8245 multimeter for $399.00. They also sell a few spare parts for the multimeter, such as fuses and test leads.
- Amazon: Amazon sells the GDM-8245 multimeter for $399.00. They also sell a wide variety of spare parts for the multimeter, including fuses, probes, test leads, and even the entire front panel.
- Best Buy: Best Buy sells the GDM-8245 multimeter for $399.00. They also sell a few spare parts for the multimeter, such as fuses and test leads.
- Lowes: Lowes does not sell the GW Instek GDM-8245 multimeter.
- ** eBay:** eBay is a good place to find used GW Instek GDM-8245 multimeters and spare parts. You can often find good deals on eBay, but it is important to be careful and buy from reputable sellers.
If you are looking for a specific spare part, you can also try searching the manufacturer's website or contacting their customer support for assistance.
GW Instek GDM-8245 Problems and Solutions
some common issues and problems with the GW Instek GDM-8245 digital multimeter, along with solutions from experts:
- The multimeter is not turning on. Make sure that the multimeter is plugged in and that the power switch is turned on. If the multimeter is still not turning on, try replacing the batteries.
- The multimeter is not displaying any readings. Make sure that the multimeter is set to the correct range for the measurement you are trying to make. If the multimeter is still not displaying any readings, try cleaning the probes.
- The multimeter is giving inaccurate readings. Make sure that the probes are properly connected to the multimeter. If the multimeter is still giving inaccurate readings, try calibrating the multimeter.
- The multimeter is displaying an error message. Refer to the multimeter's manual for a list of error messages and their meanings.
Here are some additional tips for troubleshooting common problems with the GW Instek GDM-8245 digital multimeter:
- Always make sure that the multimeter is turned off before connecting or disconnecting the probes.
- Do not use the multimeter to measure voltages or currents that exceed the rated limits of the multimeter.
- Store the multimeter in a cool, dry place.
- Clean the multimeter's probes regularly with a soft cloth.
If you are still having problems with your GW Instek GDM-8245 digital multimeter, you can contact GW Instek customer support for assistance.
Here are some step-by-step instructions on how to perform some of the most common troubleshooting tasks for the GW Instek GDM-8245 digital multimeter:
- To check the multimeter's power, follow these steps:
- Make sure that the multimeter is plugged in.
- Turn on the power switch.
- The multimeter's display should light up.
- To check the multimeter's probes, follow these steps:
- Make sure that the probes are properly connected to the multimeter.
- Touch the probes together.
- The multimeter's display should show a reading of 0 ohms.
- To calibrate the multimeter, follow these instructions:
- Refer to the multimeter's manual for instructions on how to calibrate the multimeter.
- Follow the instructions carefully.
- Once the calibration is complete, the multimeter should give accurate readings.
GW Instek GDM-8245 Manual
GW Instek GDM-8245 Digital Multimeter Manual
Safety Information
- Read and understand all safety warnings and instructions in this manual before using the GDM-8245 digital multimeter (DMM).
- Do not use the DMM if it is damaged or malfunctioning.
- Do not use the DMM in an explosive or flammable environment.
- Do not use the DMM in wet or moist conditions.
- Do not use the DMM to measure voltages or currents that exceed the rated maximum values for the DMM.
- Do not touch the test leads or probes with bare hands when the DMM is turned on.
- Keep the DMM away from children and pets.
Before Use
- Before using the DMM, make sure that the power cord is properly plugged into an AC outlet.
- Select the correct measurement range for the voltage or current that you are going to measure.
- Touch the test leads or probes to the points that you want to measure.
- Read the measurement value from the display.
Troubleshooting
- If the display shows "--OL--", the input voltage or current exceeds the full scale of the selected range.
- If the display shows "1", the DMM is in auto range mode and the input voltage or current is too low to be measured.
- If the display shows "---", the DMM is not properly connected to the power source.
- If the DMM does not work properly, please contact GW Instek for service.
Maintenance
- Keep the DMM clean and free of dust and dirt.
- Do not use harsh chemicals or solvents to clean the DMM.
- If the DMM gets wet, dry it immediately with a soft cloth.
- Do not disassemble the DMM.
Warranty
The GDM-8245 DMM is warranted to be free from defects in materials and workmanship for a period of one year from the date of purchase. If the DMM becomes defective during the warranty period, it will be repaired or replaced free of charge.
Contact Information
GW Instek No. 30, Lane 116, Sec. 1, Chung Shan N. Road, Taipei 104, Taiwan Tel: +886-2-2717-8588 Fax: +886-2-2717-8599 Email: [email protected] Website: www.gwinstek.com
Additional Information
- The GDM-8245 DMM can measure DC voltage, AC voltage, DC current, AC current, resistance, capacitance, frequency, and continuity.
- The DMM has a dual display that can show two measurements at once.
- The DMM has a built-in hold function that allows you to freeze the current measurement value.
- The DMM has a max/min function that records the maximum and minimum values of a measurement.
- The DMM has a dBm function that allows you to measure signal strength in decibels relative to milliwatts (dBm).
- The DMM has a diode test function that allows you to test the forward and reverse bias voltages of a diode.
- The DMM has a frequency measurement range of 10Hz to 50kHz.
- The DMM has a resolution of up to 50,000 counts.
- The DMM has an accuracy of up to 0.03%.
- The DMM is powered by an AC adapter or batteries.
- The DMM measures 251mm x 91mm x 291mm and weighs 2.6kg.
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