Honeywell 3400 Installation Instructions Manual page 22

E-mon series, advanced kwh/demand meter with communications
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E-MON CLASS 3400 METER
6.6.2 Current Sensor Diagnostics
The load current must be at least 1% of the meter's rated load in order to use the
diagnostic function. Current sensor diagnostics can detect:
1. Reversed current sensors
2. Incorrect phase correspondence
3. Unusually low power factor (0.642 or lower)
CT Error: (ABC) is used to detect the swapping of current sensor phases. This
message could (in some rare cases) indicate a low (<65%) power factor condition.
This message may appear intermittently due to changes in line conditions. It
should not be on continuously. (See Section 6.4.1.)
NOTE: If you have connected the current sensor to all three terminals and the
error message is still appearing, reverse the black and white wires and
repeat the previous steps until the correct connection is found.
If the CT Error: message disappears, you have found the correct sensor
connection; however, the current sensor was not installed properly around the
conductor, or the sensor wires were extended and not spliced together correctly.
Correct the sensor installation, reconnect the black wire to the black terminal and
the white wire to the white terminal on the plug and reinstall the plug into the
correct phase terminal for that current sensor. The error message should
disappear and the current sensor is now installed properly.
If the CT Error: message does not disappear at any time while trying all 3 inputs
both ways, check the AC voltage input from the current sensor between the black
and white wires using an AC voltmeter. It will read approximately zero volts
indicating that the load current is very small (or zero) or the current sensors are
not secured properly (tight connection between core halves or lead splices not
secure.)
Once the first current sensor is connected properly and the error message
disappears, repeat the previous procedure for the remaining two current sensors.
When all error messages have disappeared and all sensors are installed correctly,
the meter is operational.
62-0398—02
22

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