beautypg.com

Vanguard EZCT-2000B User Manual

Page 103

background image

REV 1 EZCT-2000B USER’S MANUAL

99

5.2

Verifying the EZCT-2000B’s V

x

Sense Circuit Using an External Meter

The excitation voltage (V

x

) sensed by the EZCT-2000B can be verified using an external RMS volt

meter. Follow the steps below to verify the EZCT-2000B’s V

x

sense circuit:

a. Connect the X cables to an RMS volt meter as shown in Figure 21.

b. Select the EZCT-2000B’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-2000B LCD screen against the value

displayed on the external volt meter.

e. Press the

[STOP]

key to end the test.

Figure 21. EZCT-2000B V

x

Verification Test Connections