I'm attempting to calibrated a Fluke 1587 Insulation Multimeter. The Fluke manual calls for a Fluke 9100 calibrator but the 9100 is no longer available.
I need to find a 4:1 work around for this instrument. A 5522A is available for use, at my current location. Any suggestions.
You answered you're own question. Use the 5522A, it's 4:1. Make sure you use resistors for the insulation test and don't source voltage into the calibrator.
You might want to check the TAR for capacitance, the K procedure states some under 4:1.
They were written using the 5520A. The 5522A has better capacitance specifications.
Unfortunately I don't have access to GIDEP or T.O.'s. I'm forced to use the manufacturer's service manual. Convincing the powers to be that a work around will meet 4:1 can be trying. I looking for a documented alternate procedure.
Im merely speculating when I propose this:
The 1587 is a insulation meter, not a capacitance bridge/meter. Hence the lack of concern about a 4:1 tur on capacitance when the OEM wrote the procedure.
Im not certain if a 5522A has TUR issues with this model or not, although if Jon says it's good then Im sure its good.
I point this fact out often to engineers, if you want an xyz meter buy an xyz meter....however if you need a great x meter buy an x meter.....buying an xyz meter and expecting it to perform a great x measurement is like expecting to win Le Mans with a Prius...
I just looked at the GIDEP (17-20AQ-479) and they use a Quadtech 1413 which they state has uncertainty of 0.35%.