Author Topic: Newbie Fluke 89IV question  (Read 1210 times)

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Offline EleclouTopic starter

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Newbie Fluke 89IV question
« on: March 03, 2016, 04:38:17 pm »
Hi

Just got a Fluke 89iv from ebay. It is in very good condition but I am wondering if it IS 100% OK. I understand I should not get a reading when I short the cables  but I am getting these readings

AC V 0-1000= 0.0027 .           Wires not touching  0.0140
AC V 0mV- 1500mv= 00.17     Wires not touching  does not fully settle wanders around 5.900
DV V 0-1000 V    =   0.0000       Wires not touching  0.0000
DC 0mV-3000mV   =   0.16        Wires not touching  does not fully settle wanders around 0.049
Resistance  0- 3000 OHM  =  0.13
Is this normal and acceptable. Are there any other test I can do.
Apologies if this is very silly question.
Thanks for your help.
Lou
« Last Edit: March 03, 2016, 05:01:56 pm by Eleclou »
 

Offline retiredcaps

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Re: Newbie Fluke 89IV question
« Reply #1 on: March 03, 2016, 06:51:49 pm »
Hi

Just got a Fluke 89iv from ebay. It is in very good condition but I am wondering if it IS 100% OK. I understand I should not get a reading when I short the cables  but I am getting these readings

AC V 0-1000= 0.0027 .           Wires not touching  0.0140
AC V 0mV- 1500mv= 00.17     Wires not touching  does not fully settle wanders around 5.900
DV V 0-1000 V    =   0.0000       Wires not touching  0.0000
DC 0mV-3000mV   =   0.16        Wires not touching  does not fully settle wanders around 0.049
Yes, it is normal.  We usually get this question about once every two weeks. There have been many threads about this, but the latest similar one is here below

https://www.eevblog.com/forum/testgear/fluke-289-mv(~)-erratic-open-circuit-behavior/

Quote
Resistance  0- 3000 OHM  =  0.13
Is this normal and acceptable.
Yes.

Quote
Are there any other test I can do.
Check to make sure both fuses are good.

With the Fluke 89IV, there are two other things to check.

1)  supercap

https://www.eevblog.com/forum/testgear/fluke-189-with-leaking-surface-mount-coin-cell/

2) slow settling

https://www.eevblog.com/forum/testgear/fluke-89-iv-slow-settle-in-5v-range/
 


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