onset
®
POWER MONITORING
INSTALLATION GUIDE
14724-D
PAGE 15
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PULSE RESOLUTION
If the configuration exceeds the maximum pulse output of 50 Hz, then the device may not recognize all pulses. The following tables list the
minimum usable Pulse Scale Setting for Wh, VARh, and Ah output. Locate the table and cell that matches your configuration based on the System
Type being monitored and the ranges of Voltage and Current being measured. The color of the cell indicates (based on the Key) the lowest pulse
resolution setting that can be used without the possibility of exceeding the 50 Hz pulse output rate limit.
Minimum Usable Pulse Scale Setting for Wh & VARh
Key:
1 Wh per pulse (default)
10 Wh per pulse
100 Wh per pulse
1,000 Wh per pulse
10,000 Wh per pulse
3-Phase Systems
2-Phase Systems
Single-Phase Systems
Minimum Usable Pulse Scale Setting for Ah
Key:
0.001 Ah per pulse
0.01 Ah per pulse (default)
0.1 Ah per pulse
1 Ah per pulse
10 Ah per pulse
TROUBLESHOOTING
Problem
Cause
Solution
The display is blank after applying control
power to the meter.
The meter is not receiving adequate power.
Verify that the meter control power is
receiving the required voltage.
Verify that the heart icon is blinking.
Check the fuse.
The data displayed is inaccurate.
Incorrect setup values
Verify the values entered for power meter
setup parameters (CT and PT ratings, system
type, etc.). See the Setup section.
Incorrect voltage inputs
Check power meter voltage input terminals
to verify adequate voltage.
Power meter is wired improperly.
Check all CTs and PTs to verify correct
connection to the same service, PT polarity,
and adequate powering. See the Wiring
Diagrams section for more information.
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