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Front-Panel Operation
Navigating the Front-Panel Menu 3
3-7
Adjusting the Meter’s Range
The range keys, (URV), switch the Meter between auto and manual ranging. The
presence or absence of MAN in the display indicates the Meter’s range mode. All
functions utilize these keys to control the Meter’s range except continuity, diode test,
temperature (8846A only), frequency and period, which only have a single range.
Note
The secondary display’s range is always the same as that of the primary
display when the functions are the same.
Pressing R causes the Meter to toggle between auto and manual ranging mode. The
range, autorange selected when you enter the manual range mode, becomes the selected
range. The Meter will extinguish MAN when autorange is selected.
Pressing U or V causes the Meter to switch from auto to manual ranging and moves
the range up or down respectively from the range autorange had selected. MAN will also
appear in the display. If the input signal is greater than the selected range can measure,
the Meter displays overload and sends 9.9000 E+37 over the remote interface.
In autorange mode, the Meter automatically selects the next highest range when the
measured value exceeds full scale of the present range. If no higher range is available,
overload is displayed on the primary or secondary display. The Meter automatically
selects the next lower range if the measured value drops below (11%) of full scale.
Navigating the Front-Panel Menu
The Meter uses a multilevel menu system for the selection of function parameters,
configuration, and features. Menu selection and navigation is accomplished with the front
panel’s five function keys (12345) and B key. Labeling of the
five function keys is presented across the bottom row of the display and is dependent on
which function is selected.
The following sections, “Configuring the Meter for a Measurement” and Chapter four’s
instructions on “Making Measurements”, cover the use of the Meter’s menu system.
Configuring the Meter for a Measurement
The Meter’s display resolution, reading rate, trigger, continuity threshold, diode test
current level, default temperature scale, and Resistive Temperature Detector (RTD) type
are adjustable through the Measurement Setup function.
Setting the Display Resolution
The steps for setting the Meter’s displayed resolution, varies depending on the selected
function. The dc volts, dc current and ohms functions set the resolution based on input
power line cycle (PLC). AC volts, ac current, frequency, period, capacitance and
temperature set resolution using a low, medium and high setting.
To set the Meter’s display resolution dc volts, dc current and ohms:
1. Press L to see the measurement Setup menu.
2. Press the soft key under the DIGITS PLC label to reveal the resolution selection
menu.
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