Keithley 2001 User Manual

Model 2001 Multimeter

Quick Reference Guide



Model 2001 Multimeter

Quick Reference Guide

1992, Keithley Instruments, Inc.

All rights reserved.

Cleveland, Ohio 44139

U.S.A.

Document Number: 2001-903-01 Rev. B

Table of Contents

Safety Precautions.......................................................1

Introduction ................................................................ 5

Operation Summary....................................................6

Multiple Displays.......................................................11

Menu Structures........................................................13

Default Conditions....................................................32

Error and Status Messages ......................................... 48

IEEE-488.2 Common Commands and Queries........... 56

SCPI Command Subsystems ...................................... 58

Safety Precautions

The following safety precautions should be observed before
using this product and any associated instrumentation. Al­though some instruments and accessories would normally be
used with non-hazardous voltages, there are situations where
hazardous conditions may be present.

This product is intended for use by qualified personnel who
recognize shock hazards and are familiar with the safety pre­cautions required to avoid possible injury. Read the operating
information carefully before using the product.

The types of product users are:

Responsible body is the individual or group responsible for

the use and maintenance of equipment, for ensuring that the
equipment is operated within its specifications and operating
limits, and for ensuring that operators are adequately trained.

Operators use the product for its intended function. They

must be trained in electrical safety procedures and proper use
of the instrument. They must be protected from electric shock
and contact with hazardous live circuits.

Maintenance personnel perform routine procedures on the

product to keep it operating, for example, setting the line volt­age or replacing consumable materials. Maintenance proce­dures are described in the manual. The procedures explicitly
state if the operator may perform them. Otherwise, they
should be performed only by service personnel.

Service personnel are trained to work on live circuits, and per-

form safe installations and repairs of products. Only properly
trained service personnel may perform installation and service
procedures.

Exercise extreme caution when a shock hazard is present. Le­thal voltage may be present on cable connector jacks or test
fixtures. The American National Standards Institute (ANSI)

1

2

states that a shock hazard exists when voltage levels greater
than 30V RMS, 42.4V peak, or 60VDC are present. A good

safety practice is to expect that hazardous voltage is
present in any unknown circuit before measuring.

Users of this product must be protected from electric shock at
all times. The responsible body must ensure that users are pre­vented access and/or insulated from every connection point. In
some cases, connections must be exposed to potential human
contact. Product users in these circumstances must be trained
to protect themselves from the risk of electric shock. If the cir­cuit is capable of operating at or above 1000 volts, no conduc-

tive part of the circuit may be exposed.

As described in the International Electrotechnical Commis­sion (IEC) Standard IEC 664, digital multimeter measuring
circuits (e.g., Keithley Models 175A, 199, 2000, 2001, 2002,
and 2010) are Installation Category II. All other instruments’
signal terminals are Installation Category I and must not be
connected to mains.

Do not connect switching cards directly to unlimited power
circuits. They are intended to be used with impedance limited
sources. NEVER connect switching cards directly to AC
mains. When connecting sources to switching cards, install
protective devices to limit f ault current and voltage to the card.

Before operating an instrument, make sure the line cord is
connected to a properly grounded power receptacle. Inspect
the connecting cables, test leads, and jumpers for possible
wear, cracks, or breaks before each use.

For maximum safety , do not touch the product, test cables, or
any other instruments while power is applied to the circuit
under test. ALWAYS remove power from the entire test sys­tem and discharge any capacitors before: connecting or dis­connecting cables or jumpers, installing or removing
switching cards, or making internal changes, such as install­ing or removing jumpers.

3

Do not touch any object that could provide a current path to the
common side of the circuit under test or power line (earth)
ground. Always make measurements with dry hands while
standing on a dry, insulated surface capable of withstanding
the voltage being measured.

The instrument and accessories must be used in accordance
with its specifications and operating instructions or the safety
of the equipment may be impaired.

Do not exceed the maximum signal levels of the instruments
and accessories, as defined in the specifications and operating
information, and as shown on the instrument or test fixture
panels, or switching card.

When fuses are used in a product, replace with same type and
rating for continued protection against fire hazard.

Chassis connections must only be used as shield connections for
measuring circuits, NOT as safety earth ground connections.

If you are using a test fixture, keep the lid closed while power
is applied to the device under test. Safe operation requires the
use of a lid interlock.

If a screw is present, connect it to safety earth ground us­ing the wire recommended in the user documentation.

The symbol on an instrument indicates that the user

!

should refer to the operating instructions located in the manual.

The symbol on an instrument shows that it can source or
measure 1000 volts or more, including the combined effect of
normal and common mode voltages. Use standard safety pre­cautions to avoid personal contact with these voltages.

The WARNING heading in a manual explains dangers that
might result in personal injury or death. Alw ays read the asso­ciated information very carefully before performing the indi­cated procedure.

4

The CAUTION heading in a manual explains hazards that
could damage the instrument. Such damage may invalidate the
warranty .

Instrumentation and accessories shall not be connected to hu­mans.

Before performing any maintenance, disconnect the line cord
and all test cables.

To maintain protection from electric shock and fire, replace­ment components in mains circuits, including the power trans­former, test leads, and input jacks, must be purchased from
Keithley Instruments. Standard fuses, with applicable national
safety approvals, may be used if the rating and type are the
same. Other components that are not safety related may be
purchased from other suppliers as long as they are equivalent
to the original component. (Note that selected parts should be
purchased only through Keithley Instruments to maintain ac­curacy and functionality of the product.) If you are unsure
about the applicability of a replacement component, call a
Keithley Instruments office for information.

To clean an instrument, use a damp cloth or mild, water
based cleaner. Clean the exterior of the instrument only. Do
not apply cleaner directly to the instrument or allow liquids
to enter or spill on the instrument. Products that consist of a
circuit board with no case or chassis (e.g., data acquisition
board for installation into a computer) should never require
cleaning if handled according to instructions. If the board be­comes contaminated and operation is affected, the board
should be returned to the factory for proper cleaning/servic­ing.

2/99

Introduction

This quick reference guide includes summary informa­tion on front panel and IEEE-488 operation for the
Model 2001 Multimeter. For detailed information, con­sult the Model 2001 Operator’s Manual, the Model
2001 Calibration Manual, and the Model 2001-SCAN
Scanner Card Instruction Manual.

All Keithley product names are trademarks or registered trade­marks of Keithley Instruments, Inc.

Other brand and product names are trademarks or registered
trademarks of their respective holders.

5

Operation Summary

Default Configuration

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). Reset the instrument to “BENCH” defaults
from the front panel by performing the following steps:

1. Press the MENU key to display the main menu:

MAIN MENU

SAVESETUP GPIB CALIBRATION

TEST LIMITS STATUS-MSG GENERAL

2. If the SAVESETUP option is not blinking, press the
key until it is blinking and then press ENTER to

view the setup menu:

SETUP MENU

SAVE RESTORE POWERON RESET

3. Select the RESET option and press ENTER to view

the reset menu:

RESET ORIGINAL DFLTS

BENCH GPIB

4. Select the BENCH option and press ENTER. The

following message is displayed:

RESETTING INSTRUMENT

ENTER to conÞrm; EXIT to abort

5. Press ENTER to confirm. The display will show DC

voltage readings with autorange enabled.

6

Assuming the Model 2001 is set to primary address 16,
the instrument can be reset and the reading displayed
on the computer CRT from the IEEE-488 bus with the
following code fragment:

100 OUTPUT 716;“:syst:pres”
110 OUTPUT 716;“:fetc?”
120 ENTER 716;A$
130 PRINT A$

Instrument Connections

Each measurement function has an appropriate connec­tion scheme. Connections for all functions can be found
in Section 3 of the Model 2001 Operator’s Manual. The
following steps summarize making DC voltage mea­surements with the Model 2001:

1. Select the front input jacks with the INPUTS button
(outer position for front jacks, inner position for
rear).

2. Using the set of supplied test leads, connect the
Model 2001 to a DC voltage source (e.g., a battery)
as shown in Figure 1.

3. Use the RANGE keys to select autoranging or a
manual range. Pressing the AUTO range key tog­gles autoranging. You can select a different range
with the RANGE and RANGE keys. The fol­lowing code statement enables autoranging on the
DCV function:

100 OUTPUT 716;“:volt:dc:rang:auto on”

7

Model 2001

PREV

DCV ACV DCI ACI Ω2 Ω4 FREQ TEMP

DISPLAY

NEXT

REL TRIG STORE RECALL

POWER

INFO LOCAL CHAN SCAN CONFIG MENU EXIT ENTER

FILTER MATH

Input Resistance = 10MΩ on 1000V and 200V ranges ;
> 10GΩ on 20V, 2V and 200mV ranges.
= 1MΩ on DCV peak spikes measurement.

2001 MULTIMETER

SENSE

INPUT

Ω 4 WIRE

HI

350V

1100V

PEAK

PEAK

LO

500V

INPUTS

PEAK

F

R

RANGE

FRONT/REAR

AUTO

2A 250V

AMPS

RANGE

CAL

DC Voltage

Source

Caution : Maximum Input = 1100V peak

Figure 1. Typical DC voltage connections

Changing the Configuration

Each measurement function and operation has the
default settings that are listed in Table 18. For example,
the default settings for DC voltage are as follows:

• Measurement speed (integration time)  Normal, 1
power line cycle.

• Digital filter  Advanced, 10 readings, 1% noise tol­erance, moving average.

• Display resolution  6.5 digits.

If these settings are not sufficient for your application,
they can be changed through configuration menus. For
example, to configure the DC voltage function to store
high speed measurements, follow these steps:

1. Press CONFIG key and then the DCV key to view

8

the DCV configuration menu:

CONFIGURE DCV

SPEED FILTER RESOLUTION

2. Select SPEED from the menu, then press ENTER.
The multimeter displays the following menu:

DCV MEASUREMENT SPEED

NORMAL FAST MEDIUM HIACCURACY

SET-SPEED-EXACTLY SET-BY-RESLN

3. Using the cursor keys, select the FAST option, then
press ENTER. Since the resolution is set to AUTO,
where it defaults to a value appropriate for the
speed, it will be set to 4.5d automatically.

4. Press EXIT to return to the normal display.

To store readings in the instrument’s data storage buffer,
perform the following:

1. Press the STORE key. The following message is dis­played:

STORE 00100 READINGS

Use , , , , ENTER, EXIT, or INFO

2. Use the cursor and RANGE keys to change the
number of readings stored, or just press ENTER to
start storing readings.

To recall the stored readings, perform the following:

1. Press RECALL to view the readings. The following
message is displayed with the cursor on the least
significant digit of the reading number:

9

+000.0000 mVDC

Rdg#+00000 @Time =+000.000000 sec

2. Use the RANGE keys to increment and decrement
the reading number and scroll through the buffer.

3. The NEXT and PREV DISPLAY keys can be used
while recalling readings to access additional buffer
data, such as maximum and minimum readings.

The following code fragment configures the Model
2001 for high speed DC voltage readings, stores 100
readings, and sends the readings over the bus:

100 OUTPUT 716;“:syst:pres”
110 OUTPUT 716;“:volt:dc:nplc 0.01”
120 OUTPUT 716;“:trac:clear”
130 OUTPUT 716;“:trac:feed calc”
140 OUTPUT 716;“:trac:egr full”
150 OUTPUT 716;“:trac:poin 100”
160 OUTPUT 716;“:trac:feed:cont next”
170 OUTPUT 716;“:trac:data?”
180 ENTER 716;A$
190 PRINT A$

10

Multiple Displays

Each measurement function has its own set of “multiple
displays” shown on the bottom line of the front panel
display. To scroll through the multiple displays available
for the present function, repeatedly press and release
the NEXT DISPLAY key. The same action with the PRE­Vious DISPLAY key does a reverse scroll through the
displays. To return to the default reading display, just
press and hold either key.

Table 1. Multiple displays by function

Function Next display

All Bar graph

DC voltage DC volts, AC ripple voltage and frequency

AC voltage AC RMS voltage, frequency, and crest factor

DC current (none specific to function)
AC current AC RMS (or average) current and frequency

2-wire resistance Source current

4-wire resistance Source current

Frequency Period calculation

Zero-centered bar graph
Maximum and minimum values
Relative and actual values
Calculated and actual values (see Note 1)
Limits bar graph (see Note 1)
Adjacent channel readings (see Note 2)

Positive peak spikes and highest value
Negative peak spikes and lowest value
Positive and negative peak spikes

AC RMS, average, and peak voltages

AC RMS and average current

Voltage drop across DUT

Voltage drop across DUT
Lead resistance

Trigger level

11

Table 1. Multiple displays by function (cont.)

Function Next display

Temperature Celsius, Fahrenheit, and Kelvin units

Data storage buffer Maximum and minimum values

Notes:

1. Multiple displays for calculated values and limits bar graph are
not available for the frequency function.

2. The multiple display for adjacent channel readings is not avail­able for the DC and AC current functions.

RTD resistance (or thermocouple voltage)
Reference junction (thermocouples only)

Average and standard deviation

12

Menu Structures

The desired menu is displayed by pressing the appropri­ate key or sequence:

• CONFIG and then DCV (or ACV, DCI, ACI, Ω 2, Ω 4,
FREQ, TEMP)  Shows the configuration menu for
each measurement function.

• CONFIG and then NEXT DISPLAY (or PREV DIS­PLAY, REL, TRIG, STORE, FILTER, MATH, CHAN,
SCAN)  Shows the configuration menu for the
multiple displays and each measurement operation.

• MENU  The main menu accesses items for which
there are not dedicated keys.

Once in a menu structure, place the cursor ( and
keys) on the desired selection and press ENTER. Use the
cursor keys, RANGE and RANGE keys to enter
parameters. Use the EXIT key to back out of a menu
structure and disable a menu.

Table 2. CONFIGURE DCV menu structure

Menu item Description

SPEED

NORMAL

FAST
MEDIUM
HIACCURACY
SET-SPEED-EXACTLY

SET-BY-RSLN

ANALOG-FILTER

Measurement speed (integration time)
menu:

Select 1 PLC (power line cycle,

16.67msec for 60Hz, 20msec for

50Hz and 400Hz).
Select 0.01 PLC.
Select 0.1 PLC.
Select 10 PLC.
Set integration time in PLC

(0.01-10).
Default to setting appropriate for

resolution.

Enable (ON) or disable (OFF) analog
filter.

13

Table 2. CONFIGURE DCV menu structure (cont.)

Menu item Description

FILTER

AUTO
AVERAGING
ADVANCED

AVERAGING-MODE

RESOLUTION

AUTO

3.5d, 4.5d, 5.5d, 6.5d,

7.5d

Digital filter menu:

Default to filter appropriate for

integration time.

Program a simple average filter

(1-100 readings).

Program a simple average filter

(1-100 readings) with a noise tol­erance window (0-100% of
range).

Select moving average or repeat-

ing average mode.

Display resolution menu:

Default to resolution appropriate

for integration time.

Select a specific resolution.

Table 3. CONFIGURE ACV menu structure

Menu item Description

SPEED

NORMAL

FAST
MEDIUM
HIACCURACY
SET-SPEED-EXACTLY
SET-BY-RSLN

FIL TER

AUTO
AVERAGING
ADVANCED

AVERAGING-MODE

Measurement speed (integration time)

menu:
Select 1 PLC (power line cycle,

16.67msec for 60Hz, 20msec for

50Hz and 400Hz).
Select 0.01 PLC.
Select 0.1 PLC.
Select 10 PLC.
Set integration time in PLC (0.01-10).
Default to setting appropriate for res-

olution.

Digital filter menu:

Default to filter appropriate for inte-

gration time.
Program a simple average filter

(1-100 readings).
Program a simple average filter

(1-100 readings) with a noise tol-

erance window (0-100% of

range).
Select moving average or repeating

average mode.

14

Table 3. CONFIGURE ACV menu structure (cont.)

Menu item Description

RESOLUTION

AUTO

3.5d, 4.5d, 5.5d, 6.5d,

7.5d

UNITS

VOLTS
dB

dBm

COUPLING

AC
AC+DC

AC-TYPE

RMS
AVERAGE
PEAK
LOW-FREQ-RMS

POSITIVE-PEAK
NEGATIVE-PEAK

Display resolution menu:

Default to resolution appropriate for

integration time.

Select a specific resolution.

Display units menu:

Select volts.
Select dB and set voltage reference

level.

Select dBm and set reference imped-

ance.

Coupling menu:

Select AC coupled measurements.
Select DC coupled measurements.

Type of ACV measurement menu:

Select true RMS ACV.
Select average ACV.
Select peak ACV.
Select low frequency (typically

<50Hz) true RMS ACV.

Select positive DCV peak spikes

measurements.

Select negative DCV peak spikes

measurements.

15

Table 4. CONFIGURE DCI menu structure

Menu item Description

SPEED

NORMAL

FAST
MEDIUM
HIACCURACY
SET-SPEED-EXACTLY

SET-BY-RSLN

FILTER

AUTO
AVERAGING
ADVANCED

AVERAGING-MODE

RESOLUTION

AUTO

3.5d, 4.5d, 5.5d, 6.5d,

7.5d

MEASUREMENT-MODE

NORMAL
IN-CIRCUIT

Measurement speed (integration time)

menu:
Select 1 PLC (power line cycle,

16.67msec for 60Hz, 20msec for

50Hz and 400Hz).
Select 0.01 PLC.
Select 0.1 PLC.
Select 10 PLC.
Set integration time in PLC

(0.01-10).
Default to setting appropriate for

resolution.

Digital filter menu:

Default to filter appropriate for inte-

gration time.
Program a simple average filter

(1-100 readings).
Program a simple average filter

(1-100 readings) with a noise tol-

erance window (0-100% of

range).
Select moving average or repeating

average mode.

Display resolution menu:

Default to resolution appropriate for

integration time.
Select a specific resolution.

Measurement mode menu:

Select normal current measurement

(use AMPS terminals).
Select in-circuit current measure-

ment (use INPUT and SENSE ter-

minals).

16

Table 5. CONFIGURE ACI menu structure

Menu item Description

SPEED

NORMAL

FAST
MEDIUM
HIACCURACY
SET-SPEED-EXACTLY
SET-BY-RSLN

FILTER

AUTO
AVERAGING
ADVANCED

AVERAGING-MODE

RESOLUTION

AUTO

3.5d, 4.5d, 5.5d, 6.5d,

7.5d

COUPLING

AC
AC+DC

AC-TYPE

RMS
AVERAGE

Measurement speed (integration time)

menu:
Select 1 PLC (power line cycle,

16.67msec for 60Hz, 20msec for

50Hz and 400Hz).
Select 0.01 PLC.
Select 0.1 PLC.
Select 10 PLC.
Set integration time in PLC (0.01-10).
Default to setting appropriate for res-

olution.

Digital filter menu:

Default to filter appropriate for inte-

gration time.
Program a simple average filter

(1-100 readings).
Program a simple average filter

(1-100 readings) with a noise toler-

ance window (0-100% of range).
Select moving average or repeating

average mode.

Display resolution menu:

Default to resolution appropriate for

integration time.
Select a specific resolution.

Coupling menu:

Select AC coupled measurements.
Select DC coupled measurements.

Type of ACI measurement menu:

Select true RMS ACI.
Select average ACI.

17

Ω

Ω

Ω

Table 6. CONFIGURE OHMS-2W menu structure

Menu item Description

SPEED

NORMAL

FAST
MEDIUM
HIACCURACY
SET-SPEED-EXACTLY

SET-BY-RSLN

FILTER

AUTO
AVERAGING
ADVANCED

AVERAGING-MODE

RESOLUTION

AUTO

3.5d, 4.5d, 5.5d, 6.5d,

7.5d

OFFSETCOMP Enable/disable offset compensation

MAXAUTORANGE

, 200M Ω , 20M Ω ,

1G

2M

, 200k Ω , 20k Ω

Measurement speed (integration time)

menu:
Select 1 PLC (power line cycle,

16.67msec for 60Hz, 20msec for

50Hz and 400Hz).
Select 0.01 PLC.
Select 0.1 PLC.
Select 10 PLC.
Set integration time in PLC

(0.01-10).
Default to setting appropriate for

resolution.

Digital filter menu:

Default to filter appropriate for inte-

gration time.
Program a simple average filter

(1-100 readings).
Program a simple average filter

(1-100 readings) with a noise tol-

erance window (0-100% of

range).
Select moving average or repeating

average mode.

Display resolution menu:

Default to resolution appropriate for

integration time.
Select a specific resolution.

(20

-20k Ω ranges).

Set upper limit for autoranging of 2-

wire resistance.
Select a specific range.

18

Ω

Ω

Table 7. CONFIGURE OHMS-4W menu structure

Menu item Description

SPEED

NORMAL

FAST
MEDIUM
HIACCURACY
SET-SPEED-EXACTLY
SET-BY-RSLN

FIL TER

AUTO
AVERAGING
ADVANCED

AVERAGING-MODE

RESOLUTION

AUTO

3.5d, 4.5d, 5.5d, 6.5d,

7.5d

OFFSETCOMP Enable/disable offset compensation

MAXAUTORANGE

, 20k Ω , 2k Ω

200k

Measurement speed (integration time)

menu:
Select 1 PLC (power line cycle,

16.67msec for 60Hz, 20msec for

50Hz and 400Hz).
Select 0.01 PLC.
Select 0.1 PLC.
Select 10 PLC.
Set integration time in PLC (0.01-10).
Default to setting appropriate for res-

olution.

Digital filter menu:

Default to filter appropriate for inte-

gration time.
Program a simple average filter

(1-100 readings).
Program a simple average filter

(1-100 readings) with a noise tol-

erance window (0-100% of

range).
Select moving average or repeating

average mode.

Display resolution menu:

Default to resolution appropriate for

integration time.
Select a specific resolution.

(20

-20k Ω ranges).

Set upper limit for autoranging of 4-

wire resistance.
Select a specific range.

19

Table 8. CONFIGURE FREQUENCY menu structure

Menu item Description

MAX-SIGNAL-LEVEL

1V, 10V, 100V, 1000V, TTL
1mA, 10mA, 100mA, 1A

RESOLUTION

4-DIGITS, 5-DIGITS

INPUT-TERMINALS

VOLTAGE
CURRENT

COUPLING

AC
AC+DC

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.

Display maximum signal level

menu:
Select maximum voltage level

for voltage inputs.

Select maximum current level

for current inputs.

Display resolution menu:

Select a specific resolution.

Input terminals for frequency

measurements menu:
Select INPUT HI and INPUT

LO terminals.

Select AMPS and INPUT LO

terminals.

Coupling menu:

Select AC coupled measure-

ments.

Select DC coupled measure-

ments.

20

Table 9. CONFIG TEMPERATURE menu structure

Menu item Description

SENSOR

4-WIRE-RTD

PT385
PT3916
USER-RTD

RTD

PT385
PT3916
USER-RTD

SENSOR

THERMOCOUPLE

THERMOCOUPLE-TYPE
REF-JUNCTIONS

CONFIGURE
ACQUIRE-REF-TEMP

UNITS

DEG-C, DEG-F, K

SPEED

NORMAL

FAST
MEDIUM
HIACCURACY
SET-SPEED-EXACTLY

SET-BY-RSLN

Sensor type menu:

4-wire RTD type menu:

Select a PT385 type.
Select a PT3916 type.
Select desired R-zero, alpha,

beta, and delta.

2-wire RTD type menu:

Select a PT385 type.
Select a PT3916 type.
Select desired R-zero, alpha,

beta, and delta.

Thermocouple setup menu:

Select desired thermocouple

type (J, K, T, E, R, S, B).

Configure reference junction

menu (JN1 thru JN5):
Configure simulated or real

junction.

Acquire reference tempera-

ture.

Temperature units menu:

Select desired temperature

units.

Measurement speed (integration

time) menu:
Select 1 PLC (power line cycle,

16.67msec for 60Hz, 20msec

for 50Hz and 400Hz).
Select 0.01 PLC.
Select 0.1 PLC.
Select 10 PLC.
Set integration time in PLC

(0.01-10).
Default to setting appropriate

for resolution.

21

Table 9. CONFIG TEMPERATURE menu structure
(cont.)

Menu item Description

FILTER

AUTO
AVERAGING
AVERAGING-MODE

RESLN

AUTO
1°, 0.1°, 0.01°, 0.001°

Digital filter menu:

Default to filter appropriate for

integration time.

Select simple average filter

(1-100 readings).

Select moving average or

repeating average mode.

Display resolution menu:

Default to resolution appropri-

ate for sensor.

Select a specific resolution.

22

Table 10. CONFIGURE TRIGGER menu structure

Menu item Description

MEASURE

SOURCE

IMMEDIATE
EXTERNAL
MANUAL
GPIB
TRIGLINK

TIMER

HOLD

DELAY

COUNT

INFINITE
ENTER-CHAN-COUNT

CONTROL

SOURCE
ACCEPTOR

Measure layer menu:

Select measure source:

Use to make measure-

ments immediately.

Use external triggers to

control measuring.

Use TRIG key to control

measuring.

Use bus triggers to control

measuring.

Use Trigger Link triggers to

control measuring. Enter
Trigger Link mode and
lines.

Use a timer to control mea-

suring and enter interval
between triggers (0.001-

999999.999sec).

Use to hold up the mea-

surement in the measure
layer.

Use to delay measurement in

the measure layer (0.001-

999999.999sec).

Define number of measure-

ments to make:
Repeat measuring indefi-

nitely.

Count = use defined value

(1-99999).

Select trigger control mode:

Enable Source Bypass.
Disable Source Bypass.

23

Table 10. CONFIGURE TRIGGER menu structure
(cont.)

Menu item Description

SCAN

SOURCE

IMMEDIATE

EXTERNAL
MANUAL
GPIB
TRIGLINK

TIMER

HOLD

DELAY

COUNT

INFINITE
ENTER-SCAN-COUNT

CONTROL

SOURCE
ACCEPTOR

Scan layer menu:

Select scan source:

Use to pass operation

immediately into the
measure layer.

Use external triggers to

control scanning.

Use TRIG key to control

scanning.

Use bus triggers to control

scanning.

Use Trigger Link triggers to

control scanning. Enter
Trigger Link lines.

Use a timer to control

scanning and enter inter­val between scans
(0.001-999999.999sec).

Use to hold up the mea-

surement in the scan
layer.

Use to delay scan in the scan

layer (0.001-

999999.999sec).

Define number of scans to be

performed:
Repeat scanning indefi-

nitely.

Count = user defined value

(1-99999).

Select trigger control mode:

Enable Source Bypass.
Disable Source Bypass.

24

Table 10. CONFIGURE TRIGGER menu structure
(cont.)

Menu item Description

ARM

SOURCE

IMMEDIATE

EXTERNAL
MANUAL
GPIB
TRIGLINK

HOLD

COUNT

INFINITE
ENTER-ARM-COUNT

CONTROL

SOURCE
ACCEPTOR

HALT Use to halt triggers. Press TRIG

Arm layer menu:

Select arm source:

Use to arm meter immedi-

ately and pass operation
into the scan layer.

Use external triggers to arm

meter.

Use TRIG key to arm

meter.

Use bus triggers to arm

meter.

Use Trigger Link triggers to

arm meter. Enter Trigger
Link lines.

Use to hold up the mea-

surement in the arm
layer.

Define number of times to

arm meter:
Continuously re-arm meter.
User defined count value

(1-99999).

Select trigger control mode:

Enable Source Bypass.
Disable Source Bypass.

key to resume triggering.

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Table 11. CONFIG DATA STORE menu structure

Menu item Description

BURST-MODE
DATA-GROUP

FULL

COMPACT

CONTROL

FILL-AND-STOP
PRETRIGGER

PERCENTAGE
READING-COUNT
EVENT

CONTINUOUS
NEVER

CLEAR-ALL
COUNT

ENTER-COUNT
USE-TRIGGER-MODEL

FEED

AFTER-CALC
BEFORE-CALC

Acquire 4.5-digit readings at 2000

readings/sec and store in buffer.

Select data types to store in buffer.

Store reading, units, channel#, read-

ing#, time-stamp, and status
(overflow).

Store reading, units, reading#, and

status (overflow).

Select type of buffer control.

Fill buffer with readings and stop.
Wait for pretrigger event; store

before and after readings.
Enter percentage of stored read-

ings before trigger.

Enter count of stored readings

before trigger.

Select source for pretrigger event.

Store readings in buffer continu-

ously.

Readings are not stored.

Clear all stored readings and buffer

statistics.

Select buffer size.

Enter number of readings to store.
Use (finite) measure count from trig-

ger model.

Select type of reading to store.

Store readings after percent or mX+b

calculation.

Store readings before percent or

mX+b calculation.

26