Valhalla 2300, Operation Manual

Page: 21 / 115

SECTION IV FRONT PANEL CONTROLS
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4-1. General
This section outlines the use of each of the
front panel controls and connectors. The user
is advised to read Section 6 to obtain full
descriptions of the methods of operation of the
2300.
The paragraph numbers used in this section
correspond to the reference numbers of Figure
4-1.
4-1-1. "DISPLAY SELECTION" Section
This bank of push-buttons selects which
phase's data is displayed in the volts, amps,
and watts display windows. These buttons are
used to switch between the V-A-W data for
each individual phase. The total power in a
three-phase load can be displayed by pressing
the 3
φ
3-wire or 3
φ
4-wire push-buttons.
These push-buttons are not installed in the
2301/2301L single-phase instruments.
4-1-2.
"WATTS - TRUE POWER" Window
The true power is displayed in this window as
selected by the display selection push-
buttons. The units of measure are either watts
or kilowatts as indicated by the two LED
indicators.
4-1-3. "OVERLOAD" Display Window
A peak overload on any of the three voltage or
three current channels is indicated by the
LED's in this window. If an overload is
indicated, the next highest voltage or current
range should be selected. These indicators
may also alert the user to the presence of large
spikes on the input signal if the RMS value is
not out of range, but an LED is still
illuminated.
4-1-4."AMPS-TRUE RMS"
Window
The true RMS current is displayed in this
window as selected by the current range push-
buttons.
4-1-5. "IEEE-488" Window
When option TL-4 is fitted and remote
operation is selected the "REMOTE" LED in
this window will be illuminated.
4-1-6."VOLTS - TRUE RMS" Window
The true RMS voltage is displayed in this
window as selected by the voltage range push-
buttons.
4-1-7. "VOLTAGE RANGE" Section
This bank of push-buttons selects the voltage
range of the 2300. Voltage inputs greater than
the selected range may yield invalid readings.
The voltage ranges of the Model 2300L are 5,
15, 30, and 60 volts, respectively.
4-1-8. "POWER" Switch
This switch controls the power to the 2300.
When the "ON" position (depressed with the
yellow dot showing) is selected and AC
power supplied, the 2300 will be operational.
When in the "OFF" (not depressed) position
the 2300 will be unpowered.
4-1-9. "CURRENT RANGE" Section
This bank of push-buttons selects the current
range of the 2300. Current inputs higher than
the selected range limit may yield invalid
readings.