EEVblog Electronics Community Forum
A Free & Open Forum For Electronics Enthusiasts & Professionals
Welcome,
Guest
. Please
login
or
register
.
Did you miss your
activation email
?
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
This topic
This board
Entire forum
Google
Bing
Home
Help
Search
About us
Links
Login
Register
EEVblog Electronics Community Forum
»
Products
»
Test Equipment
»
Keithley 2400 Error 601 and couple of questions
« previous
next »
Print
Search
Pages: [
1
]
Go Down
Author
Topic: Keithley 2400 Error 601 and couple of questions (Read 2129 times)
0 Members and 1 Guest are viewing this topic.
analogRF
Frequent Contributor
Posts: 982
Country:
Keithley 2400 Error 601 and couple of questions
«
on:
April 23, 2021, 01:10:14 pm »
We have a Keithley 2400 here in our university lab that briefly shows Error 601 at startup
The lithium battery is dead (0.2V) and it is soldered to the board but I will replace it. However I have two questions:
1-are the calibration constants lost and the unit definitely needs calibration now?
I am confused by the service manial because somewhere on page 4-8 it says:"...The RAM is battery backed-up, providing
continued storage of data buffer information during power-down cycles. All calibration
constants and system setups are stored in a separate serial EEPROM."
but then on page 4-12 it says:"...Calibration constants and user-defined parameters will be lost when the battery is
replaced. The Model 2400 must be re-calibrated..."
so which one is it? Are they in EEPROM or NVRAM?
2-The best DMM I have available is a new DMM6500. Can I do the calibration using this DMM or I definitely need a 3458A?
thanks for your help
Logged
The following users thanked this post:
msimunic
msimunic
Contributor
Posts: 26
Country:
Re: Keithley 2400 Error 601 and couple of questions
«
Reply #1 on:
January 11, 2023, 09:58:28 am »
I have same question.
Logged
TheSteve
Supporter
Posts: 3769
Country:
Living the Dream
Re: Keithley 2400 Error 601 and couple of questions
«
Reply #2 on:
January 11, 2023, 04:10:48 pm »
If the battery is already dead there is really no need to worry, if anything is going to be lost, it is already lost. In the case of the 2400 the cal data should be an eeprom anyway. It is just clock and user config/data and held in ram.
Logged
VE7FM
Print
Search
Pages: [
1
]
Go Up
« previous
next »
Share me
Smf
EEVblog Electronics Community Forum
»
Products
»
Test Equipment
»
Keithley 2400 Error 601 and couple of questions
There was an error while thanking
Thanking...
EEVblog Main Site
EEVblog on Youtube
EEVblog on Twitter
EEVblog on Facebook
EEVblog on Odysee