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Turn-On Checkout - 3
33
Figure 3-1.Verification Connections
Procedure Display Explanation
1. Turn the unit on. Meter mode
Meter mode is active and the Dis annunciator
should be on.
2.
Press the Voltage key.
VOLT 0.00 Display indicates the default settings.
3.
Press 1, 2, 0, Enter
VOLT 120 Programs the output voltage to 120 Vrms. After
the value is entered, the display returns to Meter
mode, which indicates that no voltage is applied to
the output.
4.
Press Output On/Off
120 V 60 Hz Turns the output on and applies 120 volts to the
light bulb. The Dis annunciator should be off and
CV should be on.
5.
Press Protect
PROT:CLEAR Display accesses the protection menu list.
6. Press or ô and
scroll to the
VOLT:PROT item
VOLT:PROT 500 Display shows the overvoltage protection trip
voltage for your unit. The overvoltage protection
voltage is programmed in peak, not rms volts.
7.
Press 1, 6, 0, Enter
VOLT:PROT 160 Programs the OVP to 160 Vpeak, the rms value of
which is less than the previously set rms voltage.
0 V 60 Hz Because the peak OVP voltage entered was less
than the rms output voltage, the OVP circuit
tripped. The output dropped to zero, CV turned
off, and Prot turned on.
8.
Press Protect, scroll
to the VOLT:PROT
item, and press 3, 2, 0,
Enter
VOLT:PROT 320 Programs the OVP to a peak value that is greater
than the rms output voltage value.
Note: You cannot clear an OVP trip until you
have first removed the cause of the condition.
9.
Press Protect, and
Enter
120 V 60 Hz Executes the PROT:CLEAR command, restoring
the output. Prot turns off and CV turns on.
01
01
COM COM
SENSE
!
100 W