Bedienungsanleitung Keithley 2001 (Seite 68 von 476) (Englisch)

598220

Zoom out

Zoom in

Vorherige Seite

1/476

Nächste Seite

Front Panel Operation

3-36 2001-900-01 Rev. K/ August 2010

6. Observe the display. If the “Overflow” message is

shown, select a higher range until a normal reading is

displayed. Always use the lowest possible range for the

best resolution.

7. Take a reading from the display.

4-wire resistance measurements

The Model 2001 can make 4-wire resistance measurements

between 1µ and 210k. Assuming “bench reset”

conditions (see paragraph 3.12.1), the basic procedure is as

follows:

1. Connect test leads to the INPUT HI and LO and SENSE

4 WIRE HI and LO terminals of the Model 2001. Rec-

ommended Kelvin test probes include the Keithley

Models 5805 and 5806. Either the front or rear inputs

can be used; place the INPUTS button in the appropriate

position.

2. Select the 4 function.

3. Select a range consistent with the expected resistance.

For automatic range selection, press the AUTO key. The

AUTO annunciator denotes whether auto-ranging is en-

abled.

4. Enable offset compensation if needed (refer to the pro-

cedure later in this paragraph).

If offset compensation is not being used,

the 20 and 200 ranges require zero

correction in order to achieve the best

accuracy. The zero correction procedure is

located in a following paragraph.

5. Connect the test leads to the resistance as shown in

Figure 3-15.

6. Observe the display. If the “Overflow” message is

shown, select a higher range until a normal reading is

displayed. Always use the lowest possible range for the

best resolution.

7. Take a reading from the display.

Zeroing

The term “when properly zeroed” means that you must

establish a baseline for subsequent measurements on that

range. The 20 and 200 resistance ranges require zero

correction to correct for thermal offsets. This procedure

should be performed whenever the ambient temperature

changes. To zero (rel) the Model 2001, use the following

procedure:

1. Disable rel, if presently enabled, by pressing the REL

key. The REL annunciator will turn off.

2. Select the desired function (2 or 4) and range.

3. Connect the test leads to INPUT HI and LO (and

SENSE 4 WIRE if the 4 function is selected) of the

Model 2001 and short them together. Noise and thermal

offsets may require a few moments to stabilize.

4. Press the REL key. The display will read zero.

5. Remove the short and connect the test leads to the resis-

tance to be measured.

cáÖìêÉ=PJNQ

Two-wire resistance measurements

DISPLAY

POWER

DCV ACV DCI ACI Ω2 Ω4

FREQ TEMP

REL TRIG STORE RECALL

INFO LOCAL CHAN SCAN CONFIG MENU EXIT ENTER

RANGE

AUTO

FILTER MATH

RANGE

2001 MULTIMETER

SENSE

Ω 4 WIRE

INPUT

INPUTS

CAL

500V

PEAK

FRONT/REAR

2A 250V

AMPS

350V

PEAK

1100V

PEAK

Model 2001

Resistance

Under Test

Shielded

Cable

Optional shield

+00.00100 Ω

Range: 20Ω

Note: Source current flows from the

INPUT HI to INPUT LO terminals.

Missbrauch melden von Frage und/oder Antwort

Libble nimmt den Missbrauch seiner Dienste sehr ernst. Wir setzen uns dafür ein, derartige Missbrauchsfälle gemäß den Gesetzen Ihres Heimatlandes zu behandeln. Wenn Sie eine Meldung übermitteln, überprüfen wir Ihre Informationen und ergreifen entsprechende Maßnahmen. Wir melden uns nur dann wieder bei Ihnen, wenn wir weitere Einzelheiten wissen müssen oder weitere Informationen für Sie haben.

Keithley 2001 Seite 68

Brauchen Sie Hilfe? Stellen Sie Ihre Frage.

Missbrauch melden von Frage und/oder Antwort

Art des Missbrauchs:

Forenregeln

Neu registrieren

Das Handbuch wird per E-Mail gesendet. Überprüfen Sie ihre E-Mail.

Ihre Frage wurde zu diesem Forum hinzugefügt

Info