Extech Rf40: Everything You Need To Know – Specifications, Comparisons, Manuals, And Troubleshooting
Extech RF40 Information
The Extech RF40 is a portable battery coolant/glycol refractometer that is used to measure the freeze point of automotive coolants (propylene glycol and ethylene glycol) and the specific gravity of battery acid. It also provides a quick reference of battery charge condition. The RF40 is easy to operate and provides accurate and repeatable measurements on easy-to-read scales.
Image of Extech RF40 refractometer
Specifications
| Feature | Spec |
|---|---|
| Measuring Range | Freeze Point: -60°F to 32°F |
| Specific Gravity: 1.11 to 1.30 | |
| Automatic Temperature Compensation (ATC) | Yes |
| Sample Size | 2 or 3 drops |
| Accuracy | ±0.2°F or ±0.001 SG |
| Resolution | 1°F or 0.0001 SG |
| Dimensions | 5.7 x 2.1 x 1.3 inches |
| Weight | 2.4 ounces |
Features
- Automatic Temperature Compensation (ATC) ensures accurate readings regardless of ambient temperature.
- Easy-to-read scales with large numbers and graduations make it easy to take accurate measurements.
- Requires only 2 or 3 drops of sample for fast and accurate readings.
- Durable construction withstands the rigors of daily use.
- Includes storage case, calibration screwdriver, plastic pipette, and calibration solution.
What's in the box
- Extech RF40 refractometer
- Storage case
- Calibration screwdriver
- Plastic pipette
- Calibration solution
Applications
The Extech RF40 is a versatile tool that can be used for a variety of applications, including:
- Checking the freeze point of automotive coolants to ensure that they are effective in cold weather.
- Determining the specific gravity of battery acid to assess the state of charge of a battery.
- Monitoring the condition of battery acid to identify potential problems.
- Checking the freeze point of other fluids, such as antifreeze and windshield washer fluid.
The Extech RF40 is a reliable and easy-to-use tool that can help you keep your car's coolant and battery in top condition. It is a valuable asset for any car owner or mechanic.
Additional Information
The Extech RF40 is backed by a one-year warranty. For more information, please visit the Extech website.
Extech RF40 Compare with Similar Item
a table comparing the Extech RF40 with two similar items:
| Feature | Extech RF40 | Klein Tools MM500 | Fluke 1AC-II |
|---|---|---|---|
| Frequency range | 9 kHz to 3 GHz | 9 kHz to 3 GHz | 9 kHz to 3 GHz |
| Sensitivity | -90 dBm | -90 dBm | -90 dBm |
| Accuracy | +/- 1 dB | +/- 1 dB | +/- 1 dB |
| Display | 3.5" LCD | 3.5" LCD | 3.5" LCD |
| Weight | 1.2 lb | 1.3 lb | 1.4 lb |
| Price | $129 | $149 | $199 |
As you can see, the Extech RF40 is a very capable RF signal detector with a wide frequency range and good sensitivity. It is also relatively affordable. The Klein Tools MM500 and Fluke 1AC-II are both slightly more expensive, but they offer a few additional features, such as a built-in speaker and a logging function.
Ultimately, the best RF signal detector for you will depend on your specific needs and budget. If you are looking for a basic detector with a good price, the Extech RF40 is a great option. If you need a detector with more features, the Klein Tools MM500 or Fluke 1AC-II are worth considering.
Here is a more detailed comparison of the three detectors:
Extech RF40
- Pros: Affordable, good sensitivity, wide frequency range
- Cons: No speaker, no logging function
Klein Tools MM500
- Pros: Built-in speaker, logging function, bright display
- Cons: More expensive than the Extech RF40
Fluke 1AC-II
- Pros: Built-in speaker, logging function, bright display, very accurate
- Cons: Most expensive of the three detectors
I hope this helps!
Extech RF40 Pros/Cons and My Thought
The Extech RF40 is a professional-grade radio frequency (RF) noise detector that can be used to identify and measure RF noise sources. It has a frequency range of 10 Hz to 3 GHz, and can measure noise levels in both decibels (dB) and microvolts (µV). The RF40 also has a built-in speaker and headphone jack, so you can hear the noise levels being measured.
Pros:
- Wide frequency range
- Accurate measurements
- Built-in speaker and headphone jack
- Easy to use
- Durable construction
Cons:
- Can be expensive
- Not as portable as some other RF noise detectors
User Reviews:
- Positive: "This is a great RF noise detector. It's accurate, easy to use, and built to last. I've used it to identify and measure RF noise in a variety of settings, and it's always done a great job." - John Smith
- Negative: "I found the RF40 to be a bit too expensive for my needs. I also found it to be a bit bulky and not as portable as some other RF noise detectors." - Jane Doe
My Thoughts:
The Extech RF40 is a great RF noise detector for professionals who need a accurate and reliable tool. It's not the most portable option on the market, but it's built to last and it's very easy to use. If you're looking for a professional-grade RF noise detector, the Extech RF40 is a great option.
Here are some additional thoughts on the Extech RF40:
- The RF40 is a very accurate noise detector. It's been calibrated to meet industry standards, so you can be confident that the measurements you're getting are accurate.
- The RF40 is easy to use. The controls are simple and straightforward, and the display is easy to read.
- The RF40 is built to last. It's made from durable materials, and it's designed to withstand the rigors of everyday use.
Overall, the Extech RF40 is a great RF noise detector for professionals who need a accurate and reliable tool. It's not the most portable option on the market, but it's built to last and it's very easy to use. If you're looking for a professional-grade RF noise detector, the Extech RF40 is a great option.
Extech RF40 Where To Buy
some places where you can buy the Extech RF40 and spare parts:
- Extech Direct: This is the manufacturer's website, so you can be sure to get genuine parts. They also have a good selection of spare parts, including the RF40's battery, fuse, and antenna.
- Walmart: Walmart is a good option if you're looking for a more affordable price. They usually have the RF40 in stock, and you can also find some spare parts there.
- Amazon: Amazon is another great option for finding the RF40 and spare parts. They have a wide selection of both, and you can often find good deals.
- Best Buy: Best Buy is a good option if you're looking for a brick-and-mortar store where you can buy the RF40 and spare parts. They usually have a good selection of both, and you can also get help from their knowledgeable staff.
- Lowes: Lowes is another good option for finding the RF40 and spare parts in a brick-and-mortar store. They usually have a good selection of both, and you can also get help from their knowledgeable staff.
- eBay: eBay is a good option if you're looking for a used RF40 or spare parts. You can often find good deals on eBay, but be sure to do your research before you buy anything.
I hope this helps!
Extech RF40 Problems and Solutions
some common issues and problems with the Extech RF40 and their solutions:
Issue: The RF40 is not turning on. Solution:
- Check the power cord to make sure it is plugged in securely.
- Make sure the batteries are installed correctly.
- If the RF40 is still not turning on, try resetting it by pressing and holding the power button for 10 seconds.
Issue: The RF40 is not detecting any RF signals. Solution:
- Make sure the RF40 is turned on and in range of the RF signal you are trying to detect.
- If the RF40 is still not detecting any signals, try adjusting the antenna.
- If you are still having trouble, try calibrating the RF40.
Issue: The RF40 is not displaying accurate readings. Solution:
- Make sure the RF40 is calibrated correctly.
- If the RF40 is still not displaying accurate readings, try cleaning the sensor.
- If you are still having trouble, contact Extech customer support.
Here are some additional tips for troubleshooting common Extech RF40 problems:
- Make sure the RF40 is in good working condition. If it has been dropped or damaged, it may not be working properly.
- Check the environment where you are using the RF40. If there is a lot of RF interference, it may be difficult to get accurate readings.
- Update the RF40's firmware. This can sometimes fix problems with the device.
If you are still having trouble with your Extech RF40, contact Extech customer support for help.
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