RM-111 Operations Manual
14.0 Testing a Solid State Meter Using Calibration LED
Output or Induction Meter Using an Edge Test
Equipment Needed:
• RM-111 Automated Comparator
• RM or RD Portable Watthour Standard
• Solid state meter programmed with a known number of infrared
calibration pulses per Kh, or induction meter
• RM-DS or RR-DS Disk Sensor or the RM-1H or RR-1H Optical Pickup
• Universal test jack
Test Steps:
1. Make the appropriate connections so that the meter(s) under test (DUT’s) and the RM or RD
Primary Reference Standard(s) are powered from the same voltage and current source.
2. Apply test voltage, current, and auxiliary power.
• Connect all standard pulse outputs to the RM-111.
• The RM or RD Primary Reference Watthour Standard will output pulses continuously once
auxiliary power, voltage and current have been applied.
• To implement a demand and/or creep test to any meter test,set the desired time duration
(minutes) in the Test Setup screen. Setting these parameters to zero will omit the test from the
sequence.
• The formula that the RM-111 uses to calculate percent registration is as follows:
Application 8
Application 8
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