CENTRON Meter Technical Reference Guide 8-1
Chapter 8 Testing, Troubleshooting, and Maintenance
This section provides information and instructions to help you test and maintain
the CENTRON meter. Topics covered include:
• Testing support features
•Energy testing
• Recommended testing procedures
• TOU schedule testing
• Field testing
• Troubleshooting (Fatal and non-fatal errors)
• Maintenance
Testing Support Features
Infrared Test LED
The CENTRON meter is equipped with an Infrared Test Light Emitting Diode
(LED) where each pulse represents a fixed value of watthour measurement. The
LED is located on the top of the meter as the meter is viewed from a typical
installation (see Figure 8.1). The pulse weight represented by the LED pulses is 1.0
watthour per pulse (Kh=1.0).
Figure 8.1 LED Location
Pulse Detector
An optional pulse detector is available for the CENTRON meter. The pulse detector
has an infrared pickup with two visible LEDs. When positioned over the
CENTRON light pipe, it will produce a visible flash when an infrared pulse is
received from the metrology. The right LED will flash once for each infrared Wh
Test Led
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