05-09-2017 06:45 AM
Hello,
I've got B&K Deltatron 4396 and 4519 Accelerometers. They have pre-installed charge converter 2646. Data sheet says that they must have 2...20 mA constant current supply. If I use NI 9234, I'll have IEPE excitation current 2,0...2,1 mA. Is it the currrent that I need for correct work of the sensor? If I understood correctly, I could work with 9234 direct, right?
Thanks for help,
Best regards
Solved! Go to Solution.
05-15-2017 07:24 AM - edited 05-15-2017 07:26 AM
Hi Suglob_Artur,
I did have a look at the followng documents:
Product Data: Piezoelectric Accelerometer Miniature DeltaTron® Accelerometers - Types 4519, 4519-001, 4519-002 and 4519-003 (bp2071)
https://www.bksv.com/media/doc/Bp2071.pdf
Product Data Sheet: Piezoelectric DeltaShear® Accelerometers, Uni-Gain® , DeltaTron® and Special Types
http://www.discom.de/documentation/English/Sensoric/BuKSensor.pdf
and both Sensors seem to have a Constant Current Supply of +2 to +20mA.
The 9234 can provide the 2mA.
Have a look at the general description of IEPE:
IEPE Standard
http://www.mmf.de/iepe_standard.htm
and try out the example I took from the DAQmx Examples. I tested it with 9234, and it should work.
Cheers, Niko