Calibration of ESD Wrist Strap Tester

L

LesPiles

#1
I have this equipment in our facilities (see photo).

? Is this type of device requires calibration?
? If not, what is the justification (for my auditors)?

Thanks to all in advance !

LesPiles
 

Attachments

Elsmar Forum Sponsor
#2
I have this equipment in our facilities (see photo).

? Is this type of device requires calibration?
? If not, what is the justification (for my auditors)?

Thanks to all in advance !

LesPiles
What's being checked? Is it a specific value (ohms) where being a small % off makes a difference? If so calibrate it. If you are simply looking for continuity then just verify continuity. End of story.
 
J

john ambrose

#3
We calibrate our wrist strap tester in house. The wrist strap can't have too low of an ohm reading or part damage or operator shock could occur.

The calibration procedure is simple and requires a few large value resistors. I verify the resistors using my calibrated DVM meter and then use them to verify the "GOOD" "NO GOOD" lights on my strap tester. Never had to adjust it, even after years of use.
 
L

LesPiles

#4
Hello

Thanks AndyN and John Ambrose :)

John : Do you think it would be possible to share your doc (intenal calibration procedure) ? It would help me vey much. :rolleyes:

Thanks again to both of you for your answers.:tg:

LesPiles
 
J

Janselm

#5
We validate/calibrate ours every month. We have two that are both from Desco. We bought a device from Desco. I apparantly can't put in a link because I don't have 10 posts yet but if you Google Desco 07010 you will find it.

You might be able to check if the manufacturer of yours makes something like this. If not, you can make an easy verification device as John said. Either way you decide to go, you should definitely at least be validating it every so often.
 
#7
We calibrate our wrist strap tester in house. The wrist strap can't have too low of an ohm reading or part damage or operator shock could occur.

The calibration procedure is simple and requires a few large value resistors. I verify the resistors using my calibrated DVM meter and then use them to verify the "GOOD" "NO GOOD" lights on my strap tester. Never had to adjust it, even after years of use.
This may seem "nit-picky", but this isn't "calibration" by the generally accepted terminology. It's "verification"...:agree1:
 

normzone

Trusted Information Resource
#8
Well, the source of this definition is only Dictionary.com, so take it for what it's worth.

"to determine, check, or rectify the graduation of any instrument giving quantitative measurements"

I get the impression that most people assume calibration involves adjustment, but a calibration certificate references a standard appropriate for that tool, traceability to that standard and the the tool was found to be working properly.

Am I missing something?
 
B

bkelchner1957

#9
An auditor might ask for verification of proper operation of the device. Doing a periodic calibration check to design specification limits and logging measurements using a device traceable to NIST would provide such objective evidence.

-I calibrate some of the tooling we use - Custom Go-nogo gages and other.
Hope this helps.
-BK
 
W

Wilderness Woody

#10
You should check with the company that made the device. According to current products, they may not need calibration (see page #14) as they claim "Requires no calibration" ...

http://www.bystat.com/pdf/BystatCatalogue2004.pdf

While calibration may not be required, they should be able to provide a simple verification procedure to confirm the equipment does function within normal ranges. It may even be a self-test mode.
 
Thread starter Similar threads Forum Replies Date
F ESD workbench "calibration" Manufacturing and Related Processes 2
Tagin Recommendations for calibration labels for ESD floor mats General Measurement Device and Calibration Topics 9
V ESD testers and providing calibration service - 7.6.3.2 External Laboratory IATF 16949 - Automotive Quality Systems Standard 3
lanley liao Question regarding the calibration of monitoring and measure equipment. Oil and Gas Industry Standards and Regulations 0
N IATF Calibration Lean in Manufacturing and Service Industries 3
Q Do these certificates of calibration meet ISO 9001 requirements for traceability to NIST? ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 10
T Plug Gage Calibration Calibration and Metrology Software and Hardware 1
M Load Cell Calibration using a totalizer on a flow meter General Measurement Device and Calibration Topics 0
E Calibration Records needed ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 1
D Limited Range Calibration - 5000 lb Industrial floor scale General Measurement Device and Calibration Topics 3
D Calibration of Small Scales General Measurement Device and Calibration Topics 26
C How to Establish the Calibration & Measurement Capability (CMC)? ISO 17025 related Discussions 1
I IQOQ or just initial calibration required? General Measurement Device and Calibration Topics 3
B Calibration in real life ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 3
J Calibration cycle for monitoring & measuring tools used in medical device manufacturing General Measurement Device and Calibration Topics 5
A Is calibration of test weight required General Measurement Device and Calibration Topics 4
S Calibration Frequency for Slip Gauge Kit used for CMM Calibration? General Measurement Device and Calibration Topics 0
S Calibration/Verification of customer fixtures IATF 16949 - Automotive Quality Systems Standard 6
Ron Rompen Calibration by manufacturer ISO 17025 related Discussions 4
Q Calibration verification records 7.1.5.2.1 IATF 16949 - Automotive Quality Systems Standard 2
B AS9100D 7.1.5.2 Calibration or Verification Method using outside cal lab AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 1
W Next Calibration Due Date Calibration Frequency (Interval) 5
S Where do l get calibration standards to run a calibration lab? Other ISO and International Standards and European Regulations 2
A OEM On-Site Calibration issues during Covid19 ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 12
D Calibration tolerance question using Pipettes Medical Device and FDA Regulations and Standards News 1
M Calibration Certificate Result issued by an accredited external laboratory General Measurement Device and Calibration Topics 9
G Calibration of "Master Parts" Used as Gauges Calibration Frequency (Interval) 5
R Calibration lab environmental monitoring General Measurement Device and Calibration Topics 4
G Calibration of Rotronic probe but not digital readout? General Measurement Device and Calibration Topics 3
F Standard Calibration Procedures: Recommended Practice ISO 17025 related Discussions 0
T Temperature Requirements For In House Calibration - AS9100 AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 16
B Gage calibration frequency, ISO and IATF - What are the requirements Calibration Frequency (Interval) 3
Crimpshrine13 Laboratory Scope - Calibration vs. Test Methods - IATF 16949 IATF 16949 - Automotive Quality Systems Standard 3
Crimpshrine13 Calibration of pH Meter Probe Calibration and Metrology Software and Hardware 3
C Correct Calibration Method for Dial Depth Gage General Measurement Device and Calibration Topics 6
F Nist traceable calibration certificates General Measurement Device and Calibration Topics 1
G Tool tracebility and First calibration requirements for aerospace (AS9100) organisation AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 5
D Calibration of Digital thermometer with surface probe General Measurement Device and Calibration Topics 1
T Calibration or Verification -> Cm and Cmk, etc. Definitions, Acronyms, Abbreviations and Interpretations Listed Alphabetically 3
G Is repeatability required for equipment calibration? General Measurement Device and Calibration Topics 10
was named killer AS 9100D - Calibration Instructions - Controlled documents? AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 6
B Photovoltaic Tester Calibration General Measurement Device and Calibration Topics 0
B Temperature loop: partial calibration General Measurement Device and Calibration Topics 10
G Glass scale calibration at 74 degrees F? General Measurement Device and Calibration Topics 4
A Digital Timer Calibration Requirements General Measurement Device and Calibration Topics 3
Ron Rompen Barcode Verifier Calibration and Use Calibration and Metrology Software and Hardware 5
S Is Optical Parallel Set required calibration? ISO 17025 related Discussions 1
A Calibration of Power Supplies AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 2
D Calibration Process Flow Map Example Wanted General Measurement Device and Calibration Topics 3
M Calibration or Verification? What terminology to use ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 1

Similar threads

Top Bottom