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The CM3, CM4, and PM8 evaluate the following
electrical characteristics in accordance with EN50160:
Magnitude of the supply voltage
Supply voltage variations
Rapid voltage changes voltage magnitude (All) and flicker (CM4000T only)
Supply voltage dips
Short interruptions of the supply voltage
Long interruptions of the supply voltage
Temporary power frequency over voltages
Transient over voltages (CM4000T only)
Supply voltage unbalance
By default after enabling EN50160, the PASS/FAIL tests are disabled. Details about each test and how to enable them are stated in the meter's reference manuals. This article is designed as a quick setup guide for enabling PASS/FAIL testing.
Note: EN50160 must first be enabled in SMS, PMCU, or from the front display before setting pass/fail limits.
These test values must be configured using the command interface:
Write value 9020 to 8000
Write a non-negative value to each register above(if applicable).
Write value 1 to 8001
Write value 9021 to 8000
These registers must be written to because they are -32,768 by default (a.k.a. disabled).
Example of an EN50160 table for a PM870:
If the number of allowable events is greater than the register set limit, the test will show a fail:
Note: ION Enterprise has similar tables to read the EN50160 information from these meters.