Periodic Verification
Wrist Strap & Footwear Tester Periodic Verification / Cal' Check
The cost of sending a Wrist Strap & Footwear Tester , e.g. PGT, WST, etc., to a calibration house can be significant compared to the price of a new tester.
Sometimes you have no option, your Quality Control Procedure needs to have an 'official' calibration house report / certificate ... but not always ...
There are many instances when all that your Quality Control Procedure requires is a test report, based on equipment being checked to a traceable standard.
We now offer a simple Periodic Verification / Cal' Check that checks:
- Low Fail
- Low Pass
- High Pass
- High Fail
PV-750: WST1 style test-meter only with a test range of between 750kOhm to 35MOhm, used for Wrist & Footwear Testers.
PV-900: WST1 style test-meter only with a test range of between 900kOhm to 35MOhm, used for Wrist & Footwear Testers.
PV-PGT: PGT120 style wrist & footwear test combination tester with a range of between 750kOhm to 35MOhm / 100MOhm
There many makes / models and various ranges of Wrist Strap / Footwear Tester that we can accomodate:
- 750kOhm < 35MOhm
- 750kOhm < 100MOhm
- 100kOhm < 100MOhm
- 900kOhm < 35MOhm
Referenced ranges include:
- ANSI/ESD S20.20
- IEC61340-5
The 750kOhm low limit superceded the 900kOhm some years ago.
The Periodic Verification Checkers that we use are themselves checked in-house with Test Equipment that has a traceable Calibration Report / Certificate from a reputable NATA Registered Calibration House.
The most important consideration is that the Low Fail is checking to see if there is at least a 1MOhm resistor inline, at the snap, of the Coil Cord / Wrist Strap as worn. This is primarily a safety issue, as the 1MOhm resistor is there to protect against an accidental single-phase electric shock. It is not recommended that personnel are grounded when working on 'live' equipment.
