User's Manual
24 Meter Operation
Error or Caution
Item
Display
Code
Description Self-Test
Schedule
MEP Alarm 00000200 A MEP alarm has occurred. Upon
occurrence
Reserved 00000400 N/A N/A
Phase Rotation
Changed
00000800 Wiring positions for a 3-phase meter have changed, or any
of the phases are inactive or missing.
Once per
second
Display Code Digit Position 5
Prepay Credit
Exhausted
00001000 Prepay credit has gone to 0 (zero). Upon
occurrence
Prepay Warning
Acknowledged
00002000 User has pushed the button on the front of the meter to
turn off the audible prepay low credit alarm.
Upon
occurrence
Event Log Overflow 00004000 The event log is within 10% of using its total capacity. Upon
occurrence
Mfg Log Entry
Available
00008000 A meter One-time-read or M-Bus One-time-read has
occurred.
Upon
occurrence
Display Code Digit Position 4
Log Dimension
Changed
00010000 The size of one or more logs has changed, possibly
impacting how the data is read. For internal use only.
Upon
occurrence.
Not used 00020000
Access Lockout
Override
00040000 The access lockout has been deactivated. The access
lockout settings were not, or are not, in effect.
Upon
occurrence
Power Quality
Event Detected
00080000 A power quality event (sag/surge/over-current) has been
detected on one or more phases.
When any new
event is
detected on
any phase, or
when any
event is
removed from
any phase.
Display Code Digit Position 3
Event Log Unread
Entries
00100000 One or more unread entries exist in the event log. This
alarm is cleared automatically when there are 0 unread
entries.
Upon
occurrence
THD Event
Detected
00200000 A THD (total harmonic distortion) event has occurred. Upon
occurrence
Unread Entries
Exist in Load Profile
00400000 Unread entries exist in the load profile log. Upon
occurrence
Reading Diagnostic Code Combinations
The diagnostic codes are assigned a display digit position, with up to 4 items
assigned to each position. When more than one diagnostic event is being reported for
the same digit position, the displayed value is the sum of all event codes. When the










