Opto 22

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KB48507
Volt-Amp and power readings from SNAP-AIPM modules are partial scale
Revision:  2.0
Published:  4/24/2006
Applies To
SNAP-AIPM
Versions

SYMPTOMS

The values reported for Watts (point 3 on the module) and Volt-Amps (point 4 on the module) from SNAP-AIPM modules are only 90.9% of the actual value. The voltage reading on point 1 multiplied by the current reading on point 2, should equal the VA reading from point 4.

Versions

The following instructions explain the manufacture date code. Modules with a date code prior to JEXXXXXXCG have not been updated, and require a return RMA. Modules with a special marking of ¢106 have been updated.

  1. The first two characters in the Build Code is the year of manufacture. The last two characters in the build Code is the week of manufacture.

  2. The year and week is decoded by the following chart:

  3. 1 = A3 = C5 = E7 = G9 = I
    2 = B4 = D6 = F8 = H0 = J

The example below was manufactured in the year JD (04, which is 2004) and in week EB (52, which is in December).

RESOLUTION

Opto 22 has corrected this issue. If you are experiencing the above symptoms, contact Opto 22 Product Support to discuss your problem’s circumstances and to request a return RMA to correct your module.

Relevant Downloads
No relevant downloads have been specified.
Questions? Contact Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com

DISCLAIMER

This Opto 22 Knowledge Base ('OptoKB') article is intended to provide general technical information on a particular subject or subjects and is not an exhaustive treatment of such subjects. Accordingly, the information in this OptoKB article is not intended to constitute application, design, software, or other professional engineering advice or services. Opto 22 may modify the OptoKB articles at any time. Before making any decision or taking any action which might affect your equipment, you should consult a qualified professional.

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