Welcome, Guest. Please login or register.
07-05-2020 -- 22:40:27

Login with username, password and session length

Top 10 Posters

flew-da-coup (1303)
Hawaii596 (1015)
griff61 (580)
Hoopty (548)
docbyers (544)
MIRCS (535)
CalLabSolutions (519)
Thraxas (498)
  • Total Posts: 19224
  • Total Topics: 3635
  • Online Today: 41
  • Online Ever: 242
  • (04-19-2014 -- 19:20:34)
Users Online
Users: 0
Guests: 26
Total: 26

Author Topic: fluke 8845A versus Agilent 34401A which one is better?  (Read 13803 times)

Offline Hawaii596

  • 9-level
  • *****
  • Posts: 1015
  • Action Taken: +16/-3
Re: fluke 8845A versus Agilent 34401A which one is better?
« Reply #15 on: 10-17-2009 -- 14:34:49 »
I've calibrated more 34401A's than I care to remember.  I am guessing any of us who work in at least moderate volume general type labs rarely have a week on the incoming shelves that doesn't include at least one. 

I like the very intuitive software cal routine on the 34401A, and the main OOT (Out-Of-Tolerance) I see on them is users who constantly use DC mA, and the shunts age.  So I think they're still good solid meters. 

We've got a couple of 8845A's that I haven't used much yet.  As the lead metrologist, I don't do many of the every day cals any more.  So I actually haven't spent much time using the 8845A yet.  Don't they have a higher current range?

Regarding the 34420A, that is a great little meter.  I believe some of the low resistance readings, it is spec'd better than a 3458A.  And the same is true of low DCV (as it has that sweet 1 mV range).  The main problem I've seen on them is a little flakiness in four wire resistances.  Where I used to work our customer had some 34420A's with modified Burns B12001 probes (with the 34420A connectors).  I used to do comparison cals on them against our Hart super probe (5699 I think), and enter the coefficients.  I used to post cal correlations and got typically to within +/-0.002 or so correlation.  Very good solid, stable meters.

I haven't tried out a 34410A.  Although a little off topic, I love my 8508A's with rear input option.
"I often say that when you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind."
Lord Kelvin (1824-1907)
from lecture to the Institute of Civil Engineers, 3 May 1883


DISCLAIMER:  This site is not an official US Air Force site, it is intended for private use only.  It is not endorsed, in any way, by the US Air Force, the DoD, or any other governmental agency.  Additionally, all information found within this site is just that, it is NOT meant to be used in place of authorized publications.

All logos and trademarks in this site are property of their respective owner.

All forum content is the property of the respective poster, all the rest 2004-2017 by PMEL Forum.