Radian RM-111 Operation Manual page 53

Mode – If more than one reference standard is used, the user must choose between single-phase or
polyphase modes of operation.
Ref Type – This defi nes the reference standard output pull-up value. Select Radian (150 ohm).
Other is 1000 ohm.
Input A** – Select either DUT or REF
SER#1 – Enter a serial number for standard 1, if applicable.
SER#2 – Enter a serial number for standard 2, if applicable.
SER#3 – Enter a serial number for standard 2, if applicable.
* The "Test By:" parameter input allows the user to select the type of test – TIME, PULSE,
MANUAL, or ENERGY. If ENERGY is selected, the " Time:" parameter input dynamically
changed to "Energy:". This allows a test to be stopped after a pre-set amount of energy has been
accumulated by the DUT
**When testing a standard by counting output pulses, the RM-111 will count the output pulses of both
the reference standard (REF) and the standard under test (DUT), until the selected number of pulses
are achieved. The "Input A:" parameter input allows the user to select either "REF" or "DUT". If
"REF" is selected, the test will stop after the RM-111 counts the specifi ed number of pulses from
the reference standard. If "DUT" is selected, the test will stop after the RM-111 counts the specifi ed
number of pulses from the standard under test. To reduce errors associated with testing standards
with different pulse output constants, the "Input A:" parameter should be set to "DUT" whenever
the DUT has a lower pulse resolution than the reference standard. If "DUT" is selected, the DUT
must be connected to PORT A. Follow the prompts on the RM-111 for connection details.
4. Press ENTER to exit the Test Setup screen.
5. From the Main Menu select RUN TESTS.
6. Select Test Standard.
7. Select the previously confi gured test setup.
8. If not already completed, follow the prompts on the RM-111 to make the appropriate
connections. See Figure 10.0 "Testing an Electronic Standard (Electronic Gating)" for the
applicable wiring diagram. The number of reference standards defi ned in the test setup determine
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Application 6 Application 6
RM-111 Operations Manual