Tektronix Technical Forums are maintained by community involvement. Feel free to post questions or respond to questions by other members. Should you require a time-sensitive answer, please contact your local Tektronix support center here.

DMM7510 Power consumption

DMM7510 7½-Digit Graphical Sampling Multimeter
Forum rules
<t></t>
Post Reply
3706user
Posts: 14
Joined: December 16th, 2011, 7:27 am
Country: Germany

DMM7510 Power consumption

Post by 3706user » May 3rd, 2017, 7:48 am

Hi,
In Spec sheet Power consumtion for the 7510 is given with 60VA.
In the past we had a lot of 3706 in use, these instruments are specified with 28W (without any additional cards) only. This is nearly half of 7510.

Now I plan massive parallel testing with up to 24 Multimeter of type 7510 Instruments in one rack. If they really consumes that lot of power I have to consider temperature / cooling.
So the question is: what is the right power consumption number of 7510 doing all day remote voltage measurements only?
To save power I would also set display.lightstate = display.STATE_BLACKOUT

Untill now I haven't bought an instrument to check this by myselfe.

Thanks for info
3706user

Joseph V
Keithley Applications
Keithley Applications
Posts: 107
Joined: July 1st, 2014, 10:31 am
Country: United States

Re: DMM7510 Power consumption

Post by Joseph V » May 5th, 2017, 11:16 am

Hello,

I just did some quick testing of the 7510's power draw using a PA1000.
With the 7510 in factory conditions it was drawing roughly 39VA. Changing the measurement speed did not have any significant effect on the power draw.
By setting the instrument's display to turn off using display.lightstate = display.STATE_LCD_OFF the power draw was 38VA.
When setting the instrument to display.lightstate = display.STATE_BLACKOUT the power draw was 36VA.

The 60VA comes from an extreme case based on the following

1) Streaming digitizer readings to USB / intensive processor activity – adds power draw
2) Analog power (past magflipper) is very inefficient and has a worst case operating budget.
3) User is operating digital I/O – more max power there
4) The total inefficiencies of the power system under worst case line conditions

3706user
Posts: 14
Joined: December 16th, 2011, 7:27 am
Country: Germany

Re: DMM7510 Power consumption

Post by 3706user » May 8th, 2017, 1:15 am

Hi Joseph,

thank you so much for this detailed answer! I appreciate it.
So I can calculate with 2/3 power of specsheet.

regards,
3706user

Post Reply

Return to “DMM7510 Graphical Sampling DMM”

Who is online

Users browsing this forum: No registered users and 1 guest