3.8.5.7
Equipment Setup
Connect the transducer pulse output to the Model 931A Timer A input
terminals with suitable cables. The Custom Pulse function works only with
Timer Input A. Connect the transducer and the Model 931A to a source
providing the required output levels for testing the transducer. Refer to
Figure 3.18 for an illustration of using a power transducer.
Note:
Check the Model 931A maximum ratings prior to applying power,
to avoid damaging the equipment.
Always consult the manufacturers original documentation for the power
source and the transducer for proper test setup. This may be a manual,
or simply be the nameplate on the transducer.
3.8.6
Performing a Test
3.8.6.1
For Contact Closures
<
1/second
Use Time A For X Counts. After setting up the test and configuring
the Model 931A, apply the input power source to the transducer and
Model 931A. Refer to Figure 3.18. Press the TRANSDUCER key to view
the standard measurement screen. Initially, the Model 931A display will
appear similar to the screen below.
1. Allow a few seconds for the Transducer Input value to stabilize.
2. Press the ARM/RESET key twice to reset and arm the timer
function. For X = 1, the first pulse starts the timer and the next
pulse concludes the timing interval. If using multiple counts per
measurement (X
>
1), the timer will begin counting on the first
pulse and stop with the last pulse.
3. During the custom pulse test the OUTPUT value will change to
dashes, as shown below and the date (in the lower right) will be
replaced with a timer value, incrementing in seconds.
80
Summary of Contents for 931A
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