Display Mode Key; Auto/Hold Range Key; Range Setup Key; Comparator Limit Key - Agilent Technologies 4349B Manual

4349B

Display Mode Key

The Display Mode key sets the 4349B to one of the following three display modes:
Measure Display
Comparison Display
Display O
If you select in the display mode selection menu, you can select the display digits for the
measurement data. The available digits are , , and .

Auto/Hold Range Key

The Auto/Hold Range key toggles the measurement ranging mode between Auto and Hold.
The Auto mode selects the optimum measurement range automatically within 5 measurement
cycles. The Hold mode xes the measurement range setting to range you selected. When
the Hold mode is selected, the Hold Range annunciator(
measurement range mode is Auto.

Range Setup Key

The Range Setup key sets the measurement range. The available measurement range settings
are as follows:
100 pA (not available for 10 ms measurement time)
1 nA
10 nA
100 nA
1  A
10  A (not available for 100 ms and 400 ms measurement time)
100  A (not available for 30 ms, 100 ms and 400 ms measurement time)
Each measurement range is scaled 1.45 times of the range setup value. The optimum
measurement range setting is obtained by the full-scale measurement.

Comparator Limit Key

The Comparator Limit keys set the comparator upper and lower limit value.
displays the measured result of selected channel. When the
contact check function is ON and a contact check fails, the message
(no-contact) is displayed instead of measured data. (default)
(When comparator function ON) displays the result message of the
comparator as (grater than upper limit),
lower limit), and in addition, when the contact check function is ON,
(contact check failed) for all channels.
(When comparator function OFF) displays
Display OFF mode. No measurement result is displayed.
(passed),
.
) will be displayed. The default
9
Function Reference
(less than
3-5