Go to previous topic
Go to next topic
Last Post 08/26/2013 9:20 AM by  Tony Hodges
 1 Replies
Author Messages
Robert Batta
New Member
New Member

08/25/2013 1:29 PM

    I have a CR5210-50 that I am using to measure DC load on a 12v distribution panel. I've wired the CT as drawn in the instruction, supplied 24vdc power, but the readings I am getting do not match the measured load:

    The amp readings below were taken is a separate amp meter and compared it to the voltage output on the CT:

    2.86A - 2.35volts
    9.9A - 2.08volts
    11.4A - 201volts
    12.9A - 1.96volts
    13.8A - 1.03volts

    I feel like I'm missing something obvious.

    Tony Hodges
    CRM Staff
    Basic Member
    Basic Member

    08/26/2013 9:20 AM
    Dear Sir,

    It is best to check our products at minimum scale and maximum scale for proper operation. If no current through the hole produces 0 VDC +/- 50 mV output, and 50 amps of current through the hole produce 5 VDC +/- 50 mV output, then the unit is calibrated properly. Your data shows a decreasing voltage output for higher current, which would be obviously incorrect. I will pass this along to our customer service department for a return material authorization or feel free to call or write us directly if you are short of time. Thank you.