RM-111 Operations Manual
9.0 Testing a Radian Standard (Display Gating)
Equipment Needed:
• RM-111 Automated Comparator
• One, two or three Radian RM or RD Primary Reference Watthour
Standards
• One, two or three radian standards to be tested (Device Under Test, DUT)
Test Steps:
1. Make the appropriate connections so that the standard(s) under test (D.U.T.’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. At this point, the RM or RD reference
standard(s) should be counting. Reset the standard(s) under test’s display. If correctly reset, there
should be zeros across the entire display.
• Connect all standard pulse outputs to the RM-111.
• The RM or RD Primary Reference Watthour Standard(s) will output pulses continuously once
auxiliary power, voltage, and current have been applied.
3. Turn on the RM-111 and select the TEST SETUPS menu option. From the TEST SETUPS
menu, select STANDARD TEST. To create a new test setup, select Create. To edit an existing test
setup, select Edit. To delete a test, select Delete. The Test Setup screen contains all the necessary
parameters to run a standards test. The arrow keys are used to move the cursor throughout this
screen. Enter the appropriate value for each parameter:
Name - Enter a test setup name on the fi rst line by typing over the current text (16 characters
maximum).
PriKh – Enter the primary reference standard(s) Kh value.
Kh – Enter the DUT Kh value.
#Pulse – Enter the number of pulses for the reference standard(s) to output before stopping the
test.
Application 3
Application 3
35
