Schneider Electric HRB1684301-01 Manual De Usuario

Descargar
Página de 148
128
HRB1684301-01
Chapter 15—Verifying accuracy
PowerLogic™ PM5500 series user manual
A warm-up time of 30 minutes is recommended before beginning energy accuracy 
verification testing. At the factory, the meters are warmed up to their typical operating 
temperature before calibration to help ensure that the meters will reach their optimal 
accuracy at operating temperature.
Most high precision electronic equipment requires a warm up time before it reaches its 
specified performance levels. Energy meter standards allow the manufacturers to 
specify meter accuracy derating due to ambient temperature changes and self-heating.
Your meter complies with and meets the requirements of these energy metering 
standards.
For a list of accuracy standards that your meter complies to, contact your local 
Schneider Electric representative or download the meter brochure from 
www.schneider-electric.com.
Reference device or energy standard
To help ensure the accuracy of the test, it is recommended that you use a reference 
device or reference energy standard with a specified accuracy that is 6 to 10 times 
more accurate than the meter under test. Before you start testing, the reference device 
or energy standard should be warmed up as recommended by its manufacturer.
NOTE: Verify the accuracy and precision of all measurement equipment used in 
accuracy testing (for example, voltmeters, ammeters, power factor meters).
Energy pulsing
You can configure the meter’s alarm /energy LED or one of the digital outputs for 
energy pulsing.
The meter is equipped with an alarm / energy pulsing LED. When configured for 
energy pulsing, the LED emits pulses that are then used to determine the accuracy 
of the meter’s energy measurements.
NOTE: The alarm / energy pulsing LED on the PM5561 is permanently set for 
energy pulsing and cannot be disabled or used for alarms.
The meter is equipped with digital outputs. When you configure a digital output for 
energy pulsing, the meter sends voltage pulses to the digital output port, which are 
then used to determine the accuracy of the meter’s energy measurements.
Related topics
Location of energy pulsing LED 
PM5560 / PM5561
PM5563
A
Alarm / energy pulsing LED