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Fluke Corporation has identified a safety issue affecting certain Amprobe brand AM-500 and AM-510 Digital Multimeters, when used in CAT III electrical installations above 400 volts. (MEASUREMENT CATEGORY (CAT) III is applicable to test and measuring circuits suitable for connection to the distribution part of a building’s low-voltage mains installation.) As a precautionary measure, Fluke has decided to recall all the affected products by providing a customer replaceable fuse.
We are sorry for any inconvenience this might cause you and hope you will understand that customer safety is our utmost priority.
All product returns and exchanges will be handled by Fluke.
The following ‘Affected Products’ are being recalled:
| Item Number | UPC Number | Model Name | Affected Serial Numbers | Affected Mfg. Dates |
| 4018624 | 0 95969 60036 1 | AM-500, DIY-PRO DIGITAL MULTIMETER | Within the serial number range of: 535900001 – 587799999 And: Any other serial number that starts with any number other than a 5. | September 21st, 2011 – August 1st, 2022 |
| 4018636 | 0 95969 60037 8 | AM-510, RESIDENTIAL DIGITAL MULTIMETER | Within the serial number range of: 535900001 – 587799999 And: Any other serial number that starts with any number other than a 5. | September 21st, 2011 – August 1st, 2022 |
| 4597997 | 0 95969 78100 8 | AM-510/WWG,RESIDENTIAL DIGITAL MULTIMETER #12U582 | Within the serial number range of: 535900001 – 587799999 And: Any other serial number that starts with any number other than a 5. | September 21st, 2011 – August 1st, 2022 |
All AM-500 and AM-510 shipped from Fluke after 1 August 2022 and with serial numbers not matching those specified above are NOT impacted by this recall. Missing or illegible Serial Numbers should be considered to be affected products.
Where to find your product serial number
For Item Number 4018624 AM-500, DIY-PRO DIGITAL MULTIMETER , the serial number can be found in the back cover of the equipment, as showed on right section of the image below.
For Item Number 4018636 AM-510, RESIDENTIAL DIGITAL MULTIMETER and Item Number 4597997 AM-510/WWG,RESIDENTIAL DIGITAL MULTIMETER, the serial number can be found in the back cover of the equipment, as showed on right section of the image below.
If you cannot locate the serial number on your multimeter, or if the serial number is illegible, please contact https://www.amprobe.com/contact-us/ along with proof of purchase with clear purchase date.
Units within the affected serial number range which have had the fuse replaced can be identified by a separate label on the back of the unit indicating “W2239844”. No further action is required for units with this recall correction label.
Description of safety issue
It was discovered that an improperly rated fuse for CAT III 600V applications was installed in the Recalled AM-500/510. The breaking capacity of the installed fuse is insufficient for the prospective fault current under foreseeable misuse conditions (abnormal application of electrical installation voltage above 400 volts between A and COM terminals) and may lead to venting or rupture of the fuse and the subsequent possibility of arc explosion. An arc explosion within the product enclosure may readily escape and result in severe bodily harm or even death. It should be noted that at this time Fluke is not aware of any reported incidents related to this identified product deficiency.
What you need to do now
Please IMMEDIATELY STOP using your Recalled AM-500/510 in CAT III electrical installations above 400 volts. Please register via the link below to receive a correct replacement fuse at no charge.
Complete the form linked below, where you will be provided with further detailed instructions. Please include your complete contact information, including email address and shipping address. Fluke Corporation will send you a fuse replacement kit to correct your Affected Product.