Keithley 2001 User Manual

Front Panel Operation
3-42
MAX-SIGNAL-LEVEL
The maximum signal level is used to specify the maximum
expected input voltage or current level for frequency mea-
surements. The maximum signal level is set as follows:
1. From the CONFIGURE FREQUENCY menu, select
MAX-SIGNAL-LEVEL and press ENTER. Depending
on the presently selected input terminals (VOLTAGE or
CURRENT), one of the following menus is displayed:
MAXIMUM SIGNAL LEVEL
1V 10V 100V 1000V TTL
or
MAXIMUM SIGNAL LEVEL
1mA 10mA 100mA 1A
2. Highlight the desired maximum signal level and press
ENTER. Selecting the TTL parameter configures the
maximum signal level to 10V and the trigger level to
+0.80V.
RESOLUTION
The available display resolutions are 4 digits and 5 digits.
There is no auto resolution parameter on the frequency
function.
Table 3-22
CONFIGURE FREQUENCY menu structure
Menu item Description
MAX-SIGNAL-LEVEL
1V, 10V, 100V, 1000V, TTL
1mA, 10mA, 100mA, 1A
Display maximum signal level menu:
Select maximum voltage level for voltage inputs.
Select maximum current level for current inputs.
RESOLUTION
4-DIGITS, 5-DIGITS
Display resolution menu:
Select a specific resolution.
INPUT-TERMINALS
VOLTAGE
CURRENT
Input terminals for frequency measurements menu:
Select INPUT HI and INPUT LO terminals.
Select AMPS and INPUT LO terminals.
COUPLING
AC
AC+DC
Coupling menu:
Select AC coupled measurements.
Select DC coupled measurements.
Note: The maximum signal level menu is coupled to the input terminals menu, i.e., voltage levels are shown if
voltage is the selected input.
You can set the resolution as follows:
1. From the CONFIGURE FREQUENCY menu, select
RESOLUTION and press ENTER. The following menu
is displayed:
SET FREQ RESOLUTION
4-DIGITS 5-DIGITS
2. Highlight the desired resolution and press ENTER.
INPUT-TERMINALS
Both the volts and amps input terminals can be used to mea-
sure frequency. The upper limit on the voltage terminals is
15MHz; on the amps terminals it is 1MHz. The voltage limit
is subject to the 2 × 10
7
V•Hz product.
The input terminals for frequency measuring are set as fol-
lows:
1. From the CONFIGURE FREQUENCY menu, select
INPUT-TERMINALS and press ENTER. The following
menu is shown:
FREQ INPUT SOURCE
VOLTAGE CURRENT
2. Highlight the desired input source and press ENTER.

Keithley 2001 Specifications

General

Brand	Keithley
Model	2001
Category	Multimeter
Language	English