Leviton MDNCT-2SC Manual Del Usuario E Instalación página 21

6 TROUBLESHOOTING/FAQ
Problem
The meter reports a Reverse
Energy or Bad Power Factor
installation error
The meter reports a Low
Voltage or Over Voltage
installation error
The meter reports an Over
Current installation error
Meter indicates Low Current
warning condition (only on
models with display)
The meter reports a Service
Required failure condition
The meter reports no errors but
registered consumption seems
too low
The meter reports no errors but
the Load LED is not blinking
The meter's display is on,
but doesn't cycle through the
screens
What to Do
• Verify the CT orientation and wiring
(see Section 3.8.3).
• Check to make sure each CT is installed on
the correct phase. Refer to the CT wiring
diagram (Figure 6).
• Check to make sure all voltage connections
are wired as described in Section 3.8.2.
• Test the voltage being supplied to the meter
using an AC voltmeter.
• With power off, replace any line fuses
with known good fuses and test with an
ohmmeter.
If you have installed the meter on a panel, make sure
that the current rating for the panel does not exceed the
current rating shown on the meter's label (100A or 200A).
• Make sure that current and voltage
connections are in phase (see Figure 6).
• Use an amp clamp to verify current flow.
• Try increasing the load above 1 Amp to see
if the error condition is cleared.
Contact Leviton technical assistance.
• Make sure that current and voltage
connections are in phase (see Figure 6) and
connected to the intended load.
• Verify the CT orientation and wiring
(see Section 3.8.3).
• Using an amp clamp, make sure there is
sufficient current (at least 1Amp). With a light
load, it may take 5 to 10 minutes for the LED
to blink on and off.
• Try increasing the load to at least 10 Amps
to blink the LED faster than once a minute.
Cycle power to the meter. If the problem persists, contact
Leviton technical assistance.
Table 8 - Troubleshooting Guide
18
- The CT connected to the CT1 X1/X2
terminals needs to monitor the same
phase as the voltage connected to the
meter on L1.
- The CT connected to the CT2 X1/X2
terminals needs to monitor the same
phase as the voltage connected to the
meter on L2.