As an inspector in the oil gas industry that has had the 266 model dumped on me with no explanation of the instrument or holiday testing in general, this video is extremely valuable. If you ever made an in-depth tutorial on this tool, you’d certainly get a view from me.
Hello, quick question: why does operators states that ground cable is not neccessary? I have met several operators in different countries that state that ground cable is for protect them from electricity discharge rather than for closing the circuit in order to find indications/deffects. Actually, one engineer of a contractor said that because they are using dielectric shoes, they don't even need to have the ground cable. Do I am incorrect in my interpretation?
Thank you for your question. In order for a Continuous DC Holiday Detector to detect any flaws in the coating, it has to be connected to the substrate being tested via a grounding cable. If you do not have a grounding cable with a Continuous DC Holiday Detector, it will not detect any flaws. The grounding cable is not intended as a way to protect operators from electricity discharge, it is purely designed to complete the circuit. If you have any further questions, please contact techsales@elcometer.com or visit www.elcometer.com/contact-us to find your local Elcometer distributor.
Hello I use a 266 and would like to know with the standard brush attachment how can I test an area with a 3mm radius between faces is there a smaller brush attachment you can buy
If the specs call for 15Kv with full sensitivity before my probe touch the surface already trigger the alarm so should I consider a perfect coating area without damage as my guild base reference. I will adjust decrease the sensitivity from alarming to no sound. Taking that as my baseline acceptance. To simplify my word here is select perfect painted surface adjust the sensitivity until no alarm. Take it as my sensitivity requirement and test for the rest of the area. Or instead I would consider taking bare metal to adjust my sensitivity setting until I hear an alarm and proceed with my inspection on the coated area?
Thank you for your comment. If there is a Standard you work to, you would follow the Standard to set the voltage. To correctly set the sensitivity, place your probe on a known pinhole and adjust the sensitivity accordingly so that it alarms on the pinhole and not on the coating. We would not advise adjusting the sensitivity on bare metal as this will not take the coating thickness into account. If you have any further questions, please contact techsales@elcometer.com or visit www.elcometer.com/contact-us to find your local Elcometer distributor.
Hello. I have a question regarding the current sensitivity adjustment. In which circumstances can the AUTO mode be used. Can this option only be used for conductive coatings or can I use this also for non conductive coatings? At my recent testing I used the AUTO mode, because I could not determine where flawless spots are located on the object being tested, so I did not manualy adjust the sensitiviti. The test results very concerning because there were a lot of detected flaws, but yet again the DFT was also below the the NDFT. Could the AUTO function caused the large number of flaws? Best regards
Thank you for your comment. If the coating is thinner than expected, and your holiday detector's voltage is set to the specification, and as a result your holiday detector is alarming, this suggests the coating is not thick enough to meet specifications. With regards to the sensitivity mode, we only advise using Auto with partially conductive coatings as stated in the video. To test on more conductive coatings, we advise the Elcometer 280. It is worth mentioning that a fully conductive coating, can not be holiday tested with this method. You can use Auto sensitivity on non-conductive coatings, but where possible we advise you to set it manually. For further guidance on setting the sensitivity manually or with Auto mode, please contact techsales@elcometer.com or visit www.elcometer.com/contact-us to find your local Elcometer distributor.
@@ElcometerOfficialChannel Many thanks for your reply. At my next inspection I shall manually adjust the sensitivity just to be on the safe side. I forgot to mention that I was testing non-conductive coatings so basically using the AUTO function was not an error from my side if I understand correctly. The coated surface had a numerous ammount of DFTs that were bellow the specified NDFT so with the holiday test I additionaly confirmed this. Best regards.
Thank you for your comment. Yes, you are able to use Auto Sensitivity on non-conductive coatings. Where possible we simply advise you to set it manually. If you have any further questions, please contact techsales@elcometer.com or visit www.elcometer.com/contact-us to find your local Elcometer distributor.
Thank you for your comment. It is important to always take extreme care when using high voltage equipment. We recommend turning off the handle so no voltage goes to the probe, and then move the probe away from the area. Then mark the area where the flaw is. If you have any further questions, please contact techsales@elcometer.com or visit www.elcometer.com/contact-us to find your local Elcometer distributor.
Thank you for your comment. For a full list of standards that the Elcometer 236 can be used in accordance with, visit www.elcometer.com/en/coating-inspection/pinhole-porosity/high-voltage-dc/elcometer-236-dc-holiday-detector.html and click on the "Technical Specification" tab at the top of the page. For a full list of standards that the Elcometer 266 can be used in accordance with, visit www.elcometer.com/en/coating-inspection/pinhole-porosity/high-voltage-dc/elcometer-266-dc-holiday-detector.html and click on the "Technical Specification" tab at the top of the page. The standards for both testers are also listed in the video description. If you have any further questions, please contact techsales@elcometer.com or visit www.elcometer.com/contact-us to find your local Elcometer distributor.
Thank you for your comment. If you visit www.elcometer.com/en/contact-us.html you can find your local Elcometer distributor, and contact them via the form on our website, or via their external website where applicable.
As an inspector in the oil gas industry that has had the 266 model dumped on me with no explanation of the instrument or holiday testing in general, this video is extremely valuable. If you ever made an in-depth tutorial on this tool, you’d certainly get a view from me.
Hi,
We are glad you like the video!
We will most certainly consider delving deeper into the 266 Holiday Detector.
Thank you. Very useful and practical video.
Hello, quick question: why does operators states that ground cable is not neccessary? I have met several operators in different countries that state that ground cable is for protect them from electricity discharge rather than for closing the circuit in order to find indications/deffects.
Actually, one engineer of a contractor said that because they are using dielectric shoes, they don't even need to have the ground cable.
Do I am incorrect in my interpretation?
Thank you for your question.
In order for a Continuous DC Holiday Detector to detect any flaws in the coating, it has to be connected to the substrate being tested via a grounding cable. If you do not have a grounding cable with a Continuous DC Holiday Detector, it will not detect any flaws. The grounding cable is not intended as a way to protect operators from electricity discharge, it is purely designed to complete the circuit.
If you have any further questions, please contact techsales@elcometer.com or visit www.elcometer.com/contact-us to find your local Elcometer distributor.
Hello I use a 266 and would like to know with the standard brush attachment how can I test an area with a 3mm radius between faces is there a smaller brush attachment you can buy
Hi,
Please get in touch with us at support@elcometer.com and we will help you with your question.
If the specs call for 15Kv with full sensitivity before my probe touch the surface already trigger the alarm so should I consider a perfect coating area without damage as my guild base reference. I will adjust decrease the sensitivity from alarming to no sound. Taking that as my baseline acceptance. To simplify my word here is select perfect painted surface adjust the sensitivity until no alarm. Take it as my sensitivity requirement and test for the rest of the area. Or instead I would consider taking bare metal to adjust my sensitivity setting until I hear an alarm and proceed with my inspection on the coated area?
Thank you for your comment.
If there is a Standard you work to, you would follow the Standard to set the voltage.
To correctly set the sensitivity, place your probe on a known pinhole and adjust the sensitivity accordingly so that it alarms on the pinhole and not on the coating. We would not advise adjusting the sensitivity on bare metal as this will not take the coating thickness into account.
If you have any further questions, please contact techsales@elcometer.com or visit www.elcometer.com/contact-us to find your local Elcometer distributor.
Hello. I have a question regarding the current sensitivity adjustment. In which circumstances can the AUTO mode be used. Can this option only be used for conductive coatings or can I use this also for non conductive coatings? At my recent testing I used the AUTO mode, because I could not determine where flawless spots are located on the object being tested, so I did not manualy adjust the sensitiviti. The test results very concerning because there were a lot of detected flaws, but yet again the DFT was also below the the NDFT. Could the AUTO function caused the large number of flaws?
Best regards
Thank you for your comment.
If the coating is thinner than expected, and your holiday detector's voltage is set to the specification, and as a result your holiday detector is alarming, this suggests the coating is not thick enough to meet specifications.
With regards to the sensitivity mode, we only advise using Auto with partially conductive coatings as stated in the video. To test on more conductive coatings, we advise the Elcometer 280. It is worth mentioning that a fully conductive coating, can not be holiday tested with this method.
You can use Auto sensitivity on non-conductive coatings, but where possible we advise you to set it manually.
For further guidance on setting the sensitivity manually or with Auto mode, please contact techsales@elcometer.com or visit www.elcometer.com/contact-us to find your local Elcometer distributor.
@@ElcometerOfficialChannel Many thanks for your reply. At my next inspection I shall manually adjust the sensitivity just to be on the safe side. I forgot to mention that I was testing non-conductive coatings so basically using the AUTO function was not an error from my side if I understand correctly. The coated surface had a numerous ammount of DFTs that were bellow the specified NDFT so with the holiday test I additionaly confirmed this.
Best regards.
Thank you for your comment.
Yes, you are able to use Auto Sensitivity on non-conductive coatings. Where possible we simply advise you to set it manually.
If you have any further questions, please contact techsales@elcometer.com or visit www.elcometer.com/contact-us to find your local Elcometer distributor.
when a coating defect found out, do we need to switch off the detector and then mark the area or just move the probe away and mark the area?
Thank you for your comment.
It is important to always take extreme care when using high voltage equipment.
We recommend turning off the handle so no voltage goes to the probe, and then move the probe away from the area. Then mark the area where the flaw is.
If you have any further questions, please contact techsales@elcometer.com or visit www.elcometer.com/contact-us to find your local Elcometer distributor.
What rule governs this essay?
Thank you for your comment.
For a full list of standards that the Elcometer 236 can be used in accordance with, visit www.elcometer.com/en/coating-inspection/pinhole-porosity/high-voltage-dc/elcometer-236-dc-holiday-detector.html and click on the "Technical Specification" tab at the top of the page.
For a full list of standards that the Elcometer 266 can be used in accordance with, visit www.elcometer.com/en/coating-inspection/pinhole-porosity/high-voltage-dc/elcometer-266-dc-holiday-detector.html and click on the "Technical Specification" tab at the top of the page.
The standards for both testers are also listed in the video description.
If you have any further questions, please contact techsales@elcometer.com or visit www.elcometer.com/contact-us to find your local Elcometer distributor.
🎉 good
I need quotation urgently
Thank you for your comment.
If you visit www.elcometer.com/en/contact-us.html you can find your local Elcometer distributor, and contact them via the form on our website, or via their external website where applicable.