DL1 wont read bridge amp

DMKMM
Posts: 103
Joined: Thu Apr 17, 2008 12:12 pm
Location: Lincoln, NE

DL1 wont read bridge amp

Postby DMKMM » Tue May 21, 2013 7:18 pm

trying to set up a brake pedal load sensor PCB# 1203-01A, with the PCB# 8162 bridge amp.

The load cell works fine on the bench with a 12vdc supply, and reading the output with a mulitmeter.
ie squeeze the load cell, the volts goes up on the multimeter... easy.

I plug it into an analoge CH of a DL1, and i get nothing.

Thoughts?

Bridge amp info:

12-28vdc powered
deliever +/-5vdc OR +/-10vdc
and 4mA to 20mA output
bridge excitation set to 5vdc for 120ohm bridge

http://www.pcb.com/contentstore/docs/PC ... 2-011A.pdf

Like I said it works fine on the bench. Not with a DL1
Last edited by DMKMM on Wed May 22, 2013 4:51 pm, edited 1 time in total.

Support

Postby Support » Wed May 22, 2013 9:26 am

Are you getting 0v on the DL1 or are you seeing nothing at all? Make sure that the unit is configured to be logging the data and/or transmitting it on the serial port if you are monitoring it on a PC.

Martin

DMKMM
Posts: 103
Joined: Thu Apr 17, 2008 12:12 pm
Location: Lincoln, NE

Postby DMKMM » Wed May 22, 2013 4:23 pm

the range of the load cell is 500lbs @ +/-10vdc.

when i stand on the load cell mulit meter it is saying 4.985vdc.. (im around 250lbs, stands to reason)

i connect DL1 in parallel to meter, meter reads same, log data, load into analysis, analaysis shows 0 to .05mV, assume it should show same as meter ie roughly 5v.

disconnect meter, log again, same 0 to .05mV

im guessing that .05mV is more likely just noise... so i guess it is probably reading 0v

DMKMM
Posts: 103
Joined: Thu Apr 17, 2008 12:12 pm
Location: Lincoln, NE

Postby DMKMM » Wed May 22, 2013 4:52 pm

Support wrote:Are you getting 0v on the DL1 or are you seeing nothing at all? Make sure that the unit is configured to be logging the data and/or transmitting it on the serial port if you are monitoring it on a PC.

Martin


currently trying to just log onto card, and check in analysis, i checked that serial is on, shows nothing on light monitor also

Support

Postby Support » Fri May 24, 2013 10:03 am

Can you please email a log file through to me, mhill at race-technology.com

Martin

jlucas
Posts: 302
Joined: Tue Nov 29, 2005 12:45 am
Location: East Liberty, OH
Contact:

Postby jlucas » Mon May 27, 2013 10:50 pm

Are you sure your config on the DL1 is correct?
Jeremy Lucas
Fast Tech Limited - a Race Technology Dealer

DMKMM
Posts: 103
Joined: Thu Apr 17, 2008 12:12 pm
Location: Lincoln, NE

Postby DMKMM » Wed May 29, 2013 12:19 pm

problem has been sloved...

ground loop


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