Support
Welcome to Joulescope Support! Whether you're exploring Joulescope for the first time or are a seasoned expert, we're here to help. Look below for answers, resources, and guidance to get the most out of your Joulescope.
Sales
Do you have distributors?
Yes! See our distributors page.
Do you offer demo units or loaner units?
No, but we do have a very generous 45-day return policy! Buy a Joulescope today. If you are not happy, we will take it back.
How quickly do you ship?
We typically ship the same business day for all orders placed by 3 pm US ET, which is UTC-5 in winter and UTC-4 in summer.
How do I apply a discount code?
If you have a discount code, you apply it during checkout. Enter it into the Discount code box and click the Apply button. Your cart does not show the discounted price.
How do I get a quote?
Send an email to sales@joulescope.com.
How do I place a purchase order?
Purchasing by credit card is the fastest and easiest way to buy Joulescopes. Even if you need to follow your company's PO process, check if accounting can place the order using a credit card.
We do offer purchasing using the quote / purchase order / invoice process with NET30 terms to qualified customers. Contact sales@joulescope.com.
Becoming an approved vendor to larger companies takes time. If we are not already an approved vendor and you need a Joulescope quickly, consider using a credit card or purchasing from a distributor that is already approved.
Do I need ISO 17025 calibration?
ISO 17025 calibration is often required for safety-critical work, including medical and automotive. If you don't know that you need it, you probably do not. All Joulescopes are factory calibrated and guaranteed to meet specifications.
Technical
Where can I find documentation?
If you are just getting started with your Joulescope, the best resource is the Joulescope User’s Guide for the JS110 or JS220. It contains information on getting started, describes how to use your Joulescope, and has detailed information on Joulescope specifications.
Also, see the Joulescope UI User's Guide.
Can I use Joulescopes with higher voltages?
Yes! You do need to add a few external components.
See the Joulescope JS220 User's Guide for details. Jump to Section 9.6 Measure Higher Voltages.
How can I make a multi-channel measurement?
You can use multiple Joulescopes at the same time with the same host computer! The Joulescope UI will display up to four channels in the Waveform widget.
Joulescopes produce a lot of data. A single USB root hub supports up to 3 Joulescopes. Your host computer needs additional root hubs (such as a PCIe to USB expansion card) to support more Joulescope at full rate. With the JS220, you can use on-instrument sinc1 downsampling, which reduces USB bandwidth. At 10 kHz, a single USB root hub can support many Joulescopes.
What is the difference between factory calibration and ISO 17025 calibration?
All Joulescopes are calibrated in the factory and meet the specifications given in the Joulescope JS220 User's Guide (Section 7 Specifications). While factory testing follows industry best practices, it does not conform to any standard.
The ISO 17025:2017 calibrated units undergo additional testing at our accredited lab partner, Tra‑Cal. They validate that the instrument meets its specifications and issue a paper certificate, which is included with the instrument. ISO 17025 calibration is often required for safety-critical work, including medical and automotive.
How do I recalibrate my Joulescope to ISO 17025?
Our accredited lab partner, Tra-Cal, offers recalibration service in the USA. You can request a quote. You do not need to have originally purchased an ISO 17025 unit to get ISO 17025 recalibration.
The recalibration process does not adjust the instrument's behavior. It simply verifies that the instrument is operating within specifications.
If you have a preferred lab or internal metrology lab, they can follow the instrument Verification Procedure described in the User's Guide.
Ensure that the lab has sufficient equipment in scope to guarantee a good test uncertainty ratio (TUR). The most demanding measurements are typically 18 µA and 3 A.
For the JS220, see Section 17.1 Verification Procedure in the Joulescope JS220 User's Guide.
For the JS110, see Section 16.1 Verification Procedure in the Joulescope JS110 User's Guide.
Where can I get the open-source software?
The Joulescope host software is open source, which you can find on GitHub:
Where can I get the open-source front panel designs?
The Joulescope front panels are open-source hardware designs. The repos even include a KiCAD template project to help you get started quickly.
Where can I ask technical questions?
The Joulescope Forum is an interactive website where you can see posts from other Joulescope Users and post your own topics. We are very active and responsive on the forum, and the forum is the best place to publically discuss your Joulescope issues, challenges, and ideas.
You can send private, technical questions to support@joulescope.com.
Still have questions? Visit the forum or contact us.
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