Installation guide, Troubleshooting – Veris Industries H8026 Install User Manual

Page 9

H8025/8026

Z201640-0H

PAGE 9

11101

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INSTALLATION GUIDE

TROUBLESHOOTING

Problem

Solution

Status LED does not blink

Check fuses and voltage connections. Status LED should

blink regardless of CTs, N2 BUS connections, and DIP

switch setting.

Power meter interferes with

another device on the N2 BUS

Set DIP switches to a different N2 address not in use.

Readings seem highly inaccurate. • Check that each CT is installed on the conductor with

the corresponding color voltage input lead attached. In

most cases, incorrect wiring will cause the STATUS LED

to blink RED (slowly). However, a power factor lower

than 0.5 could cause the LED to blink this way, even if

the unit is installed properly.

• It does not matter which side of the CT faces towards

the load.

• If current is below 7% of full scale maximum for the

CT, use a smaller CT or wrap each wire through the CT

multiple times

•Check current with an amp-clamp.
Expected power:
kW = Volts x Amps x 1.732 x PF / 1000
kW = Horsepower x 0.746
PF is usually 0.7 to 0.95, depending on the load.

Meter goes offline when load is

switched off.

Voltage leads must be connected on the Line side of the

conductor. The power meter cannot communicate on

the N2 BUS without voltage.

Status LED blinks red.

• If the LED blinks quickly (i.e., about 5 blinks in two

seconds), then the CT rating is too low.

• If the LED blinks slowly (i.e., about 1 blink in two

seconds) the CTs are not installed on the correct

conductors, or the power factor is less than 0.5. The

meter can accurately measure these low PFs, but few

loads operate normally at such a low power factor.