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Functional Overview
2-18 GB1400 User Manual
Controls and Indicators
All of the controls, indicators, inputs, and outputs found on the Generator or
Analyzer front or rear panels are discussed in the following section.
Power Switches
The ON/OFF power switch is located on the left side of the test instrument below
the LCD screen. The power switch switches the 120/240 VAC to the system
power supply. When off, a Battery backup circuit powers the non-volatile RAM.
Unit Mounting
The GB1400 is designed to be placed: (1) flat on a level surface, capable of
supporting its weight, or (2) angled from the surface with the rotating carrying
handle. To change the handle's orientation, press both handle-locking buttons
(located at the hubs of the handle), rotate the handle to the desired angle, and
release the buttons. The handle will click into a locked position. Assure that the
handle is locked before placing the unit on a work surface. A Rack mounting
option is available for installation of the unit into a 19" rackmount. The rack
height for the GB1400 is 7 inches (four RMU).
Unit Cooling
The rear panel fan openings must be kept clear for proper cooling of the unit.
Allow a minimum of two (2) inches of rear panel clearance, and one (1) inch of
top clearance, while operating the unit.
View Angle and Panel Lock Keys
The PANEL LOCK and VIEW ANGLE keys are located near the top, left side of
the front panel.
• VIEW ANGLE: Use this key to select the optimum LCD viewing angle.
• PANEL LOCK: Use this key to "lock" and "unlock" the front panel. While
the front panel is locked, all keys that can cause setup changes are disabled.
This feature can help prevent accidental loss of data when performing long-
term or critical tests.
RESET to Factory Default
To return the Generator or Analyzer to factory default settings, turn the
instrument OFF and then re-power it while pressing and holding the VIEW
ANGLE, MSB 1, and (PATTERN) CLEAR keys at the same time. Release these
keys after the message Default Setup appears in the display.