Bedienungsanleitung Keithley 2001 (Seite 22 von 476) (Englisch)

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Getting Started

2-8 2001-900-01 Rev. K / August 2010

The measure count (number of readings to take) is set to a

finite value (1 to 99,999) or to infinity. The factory default

value is infinity.

In factory default conditions, the arm layer and scan layer are

transparent to the measurement operation.

2.4 Initial configuration

WAR NI NG

Before turning on the Model 2001, make

sure it is connected to a grounded power

receptacle using the supplied power cord

or the equivalent. Failure to properly

ground the unit creates a shock hazard that

could result in injury or death.

The Model 2001 can save from one to ten user setups in

memory, depending on the installed memory option. You can

select one of the user setups as the power-on default, or have

the instrument power up to either of the two factory defaults

(optimized for “BENCH” or “GPIB” operation). Since the

examples in paragraph 2.5 assume BENCH defaults, reset

the instrument to those settings by performing the following

steps:

1. Press the MENU key to display the MAIN MENU

options as shown below:

MAIN MENU

SAVESETUP GPIB CALIBRATION

TEST LIMITS STATUS-MSG GENERAL

When the lower display line is longer than one line, the

right-most character will be a symbol. Repeatedly

press the key to view the second half of the lower

line, and press the key to return to the first half

display.

Additional information is available for

most front panel operations. Simply press

the INFO key to toggle an INFO display.

Use the and keys to see the

complete lower line.

2. If the SAVESETUP option is not blinking, press the

key until it is and then press ENTER to view the setup

menu:

SETUP MENU

SAVE RESTORE POWERON RESET

3. Press the key until the RESET option of the SETUP

MENU is blinking and then press ENTER to view the

reset menu:

RESET ORIGINAL DFLTS

BENCH GPIB

4. Select the BENCH option by making it blink and

pressing ENTER. The following confirmation message

is displayed:

RESETTING INSTRUMENT

ENTER to confirm; EXIT to abort

5. Press ENTER to confirm. The parameters accessed by

the front panel are now reset to factory defaults for

bench operation. The display will show DC voltage

readings with autorange enabled. The default settings

for DC voltage are:

•Measurement speed (integration time) Normal, 1

power line cycle.

•Digital filter  Advanced, 10 readings, 1% noise

tolerance, moving average, enabled.

•Display resolution  6.5 digits.

2.5 Front panel operation

Basic front panel operation will be demonstrated by

examples of measuring DC voltages. The first example

shows readings at default settings and high accuracy

readings. The second example shows storing high speed

readings. These examples are only intended to teach basic

operation.

Details for using the full capabilities of the Model 2001 from

the front panel are contained in Section 3 of this manual. The

manual for the Model 2001-SCAN Scanner Card has

examples for closing and opening channels and scanning

lists of channels.

The front panel operation examples

assume that the Model 2001 is initially set

up for proper operation as explained in

paragraph 2.4.

2.5.1 Measuring DC voltage example

Before starting this example, the front panel display should

show triggered DC voltage measurements. If it does not,

perform a bench reset following the procedure of paragraph

2.4.

Perform the following steps to make DC voltage

measurements with the Model 2001 Multimeter.

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Keithley 2001 Seite 22

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