Schneider Electric HRB1684301-01 Manual De Usuario

PowerLogic™ PM5500 series user manual 

Chapter 15—Verifying accuracy

HRB1684301-01

129

The following are guidelines for testing the meter; your meter shop may have specific 
testing methods.

1. Turn off power to all test equipment. Use a properly rated voltage sensing device to 

confirm power is off.

2. Connect the test voltage and current source to the reference device or energy 

standard. Ensure all voltage inputs to the meter under test are connected in parallel 
and all currents inputs are connected in series.

3. Connect the control equipment used for counting the standard output pulses using 

one of these methods:

NOTE: When selecting which method to use, be aware that the Alarm / energy LED 
and digital outputs have different pulse rate limits. See “Energy pulsing 
considerations” on page 131 for details.

4. Before performing the verification test, let the test equipment power up the meter 

and apply voltage for at least 30 seconds. This helps stabilize the internal circuitry of 
the meter.

5. Set the meter’s power system to 3PH4W Wye Gnd (3-phase, 4 wire Wye with 

ground).

• Apply appropriate personal protective equipment (PPE) and follow safe electrical 

work practices. See NFPA 70E in the USA or applicable local standards.

• Turn off all power supplying this device before working on it.
• Always use a properly rated voltage sensing device to confirm that all power is off.
• Do not exceed the device’s ratings for maximum limits.
• Verify the device’s power source meets the specifications for your device’s power 

supply.

Alarm / energy LED

Align the red light sensor on the standard test bench armature over the front 
panel alarm / energy LED.

Digital output

Connect the meter’s digital output to the standard test bench pulse counting 
connections.

V1 V2 V3 VN

I1

I2

I3

+

-

+

-

+

-

V1 V2 V3 VN

I1

I2

I3

+

-

+

-

+

-

V1 V2 V3 VN

I1

I2

I3

+

-

+

-

+

-