Vanguard EZCT-S2A - Manual (Page 84)

EZCT S2A USER’S MANUAL REV 1
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5.2 Verifying the EZCT S2A’s V
x
Sense Circuit Using an External Meter
The excitation voltage (V
x
) sensed by the EZCT S2A can be verified using an external RMS volt
meter. Follow the steps below to verify the EZCT S2A’s V
x
sense circuit:
a. Connect the X cables to an RMS volt meter as shown in Figure 15.
b. Select the EZCT S2A’s Diagnostics mode (see section 5.1).
c. Press the
[PAPER ∧ Contrast]
key to raise the V
x
voltage.
d. Verify the V
x
voltage displayed on the EZCT S2A LCD screen against the value displayed
on the external volt meter.
e. Press the [STOP] key to end the test.
Figure 15. EZCT S2A V
x
Verification Test Connections