Fluke 863, 867B User Manual

867B/863

Graphical Multimeter

Users Manual

®

4822 872 00894
November 1997 , Rev. 3, 10/98

© 1997, 1998 Fluke Corporation. All rights reserved. Printed in the Netherlands.
All product names are trademarks of their respective companies.

Table of Contents

Chapter Title Page

1 A Quick Tour.................................................................................................... 1-1

Your Graphical Multimeter................................................................................. 1-1

About This Manual............................................................................................. 1-8

Combo Mode..................................................................................................... 1-9

Meter Mode ...................................................................................................... 1-9

View Mode......................................................................................................... 1-9

Trend Mode....................................................................................................... 1-9

Auto Diode Test Mode....................................................................................... 1-10

Logic Test Mode................................................................................................ 1-10

Component Test Mode...................................................................................... 1-10

Sleep Mode........................................................................................................ 1-10

2 Making Measurements.................................................................................... 2-1

Introduction........................................................................................................ 2-1

Measuring AC Volts........................................................................................... 2-4

i

867B/863

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Measuring DC Volts........................................................................................... 2-6

Measuring DC Millivolts...................................................................................... 2-8

Measuring Ohms, Continuity, and Conductance................................................ 2-9

Testing Diodes and Measuring Capacitance ..................................................... 2-11

Measuring AC and DC Amps............................................................................. 2-13

Measuring AC and DC Milliamps and Microamps.............................................. 2-15

Using Component Test ...................................................................................... 2-17

Testing for Logic Activity.................................................................................... 2-20

Measuring Frequency ........................................................................................ 2-22

3 Some General Descriptions............................................................................ 3-1

Introduction ........................................................................................................ 3-1

Battery Considerations....................................................................................... 3-1

Display Blanking (Sleep Mode).......................................................................... 3-1

Using the............................................................................................................ 3-2

Backlight (Model 867B)...................................................................................... 3-2

Adjusting Contrast.............................................................................................. 3-2

General Features............................................................................................... 3-2

Understanding Display Features........................................................................ 3-7

Measurement Connections................................................................................ 3-10

4 Using the Hardkeys.......................................................................................... 4-1

Introduction ........................................................................................................ 4-1

Using Display Mode Softkeys ............................................................................ 4-1

Using Frequency Softkeys................................................................................. 4-2

Save/Print Softkeys............................................................................................ 4-3

ii

Contents

(continued)

Min Max Softkeys.............................................................................................. 4-4

Range Softkeys................................................................................................. 4-5

Touch Hold........................................................................................................ 4-6

5 Using View and Trend Display Modes........................................................... 5-1

Introduction........................................................................................................ 5-1

View Display Mode Basics ................................................................................ 5-1

Using View Mode Softkeys................................................................................ 5-2

Setting Up the Time Base.................................................................................. 5-3

Setting Up the Trigger ....................................................................................... 5-4

Choosing the Acquisition Type.......................................................................... 5-7

Trend Display Mode Basics............................................................................... 5-10

Using Trend Mode Softkeys.............................................................................. 5-10

6 Using Save, Recall, Print, and Set Up............................................................ 6-1

Introduction........................................................................................................ 6-1

Using the Save/Print Softkeys........................................................................... 6-1

Saving Screen and Configuration...................................................................... 6-3

Recalling Screen or Configuration..................................................................... 6-4

Previewing Screen or Configuration.................................................................................. 6-4

Saving the Present Configuration...................................................................... 6-5

Printing............................................................................................................... 6-6

Changing the Configuration............................................................................... 6-8

7 User Maintenance............................................................................................ 7-1

Introduction........................................................................................................ 7-1

867B/863

Users Manual

Cleaning............................................................................................................. 7-1

Testing the Fuses............................................................................................... 7-1

Replacing the Batteries...................................................................................... 7-2

Replacing the 440 mA Fuses............................................................................. 7-2

Replacing the 11A (High Energy) Fuse.............................................................. 7-2

Reassembly ....................................................................................................... 7-3

Operational Test................................................................................................. 7-5

Self Test............................................................................................................. 7-5

If Your GMM Does Not Work ............................................................................. 7-8

8 Specifications................................................................................................... 8-1

General Specifications....................................................................................... 8-1

iv

List of Tables

Table Title Page

1-1. Introducing Your Graphical Multimeter .................................................................. 1-2

1-2. A Practice Session................................................................................................. 1-6

1-3. Functions and Display Modes................................................................................ 1-11

2-1. Common Combo/Meter Mode Softkeys................................................................. 2-2

2-2. Component Testing (Capacitance)........................................................................ 2-18

3-1. General Features................................................................................................... 3-4

3-2. Upper Status Line.................................................................................................. 3-9

6-1. Set Up Selections .................................................................................................. 6-9

v

867B/863

Users Manual

vi

List of Figures

Figure Title Page

1-1. Graphical Multimeter Features............................................................................... 1-1

1-2. RS232 and AC Power Connections....................................................................... 1-1

1-3. Test Leads and Measurement Connections.......................................................... 1-4

1-4. Using the Battery Eliminator .................................................................................. 1-5

1-5. Volts and Amps Measurement Map....................................................................... 1-12

1-6. Ohms, Conductance, Diode Test, Capacitance Map............................................. 1-13

1-7. Logic Test, Component Test, and Set Up.............................................................. 1-14

1-8. Hz Min Max, and Range Map ................................................................................ 1-14

2-1. AC Volts Measurements........................................................................................ 2-4

2-2. DC Volts Measurements........................................................................................ 2-6

2-3. Millivolt Measurements .......................................................................................... 2-8

2-4. Ohms, Continuity, and Conductance Measurements............................................ 2-9

2-5. Diode Test and Capacitance Measurements......................................................... 2-11

2-6. Amps Measurements............................................................................................. 2-13

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2-7. Milliamp and Microamp Measurements.................................................................. 2-15

2-8. Component Testing................................................................................................ 2-17

2-9. Component Test Patterns....................................................................................... 2-19

2-10. LOGIC Testing........................................................................................................ 2-20

2-11. Frequency Measurements...................................................................................... 2-22

3-1. General Features.................................................................................................... 3-3

3-2. Input Connections Screen...................................................................................... 3-7

3-3. Display Features..................................................................................................... 3-8

3-4. General Measurement Connections....................................................................... 3-10

3-5. Amps Measurement Connections .......................................................................... 3-10

3-6. Milliamp and Microamp Connections...................................................................... 3-11

3-7. LOGIC Testing Connections................................................................................... 3-11

5-1. Time Base Selection............................................................................................... 5-3

5-2. Trigger Icons........................................................................................................... 5-5

5-3. Setting Up the Trigger ............................................................................................ 5-6

5-4. Viewable Time Divisions (Single Shot and Glitch Capture).................................... 5-9

6-1. Freeze (Print/Save) Softkey Map ........................................................................... 6-2

6-2. PC and Printer Connections................................................................................... 6-7

7-1. Replacing the 11A (High Energy) Fuse.................................................................. 7-4

7-2. Replacing the Batteries .......................................................................................... 7-6

7-3. Replacing the 440 mA Fuse................................................................................... 7-7

viii

Safety

mm

In this manual, the word “WARNING” identifies
conditions and actions that pose hazard(s) to the
user. The word “CAUTION” refers to conditions
and/or actions that can damage the instrument. Use
of the instrument in a manner not specified may im­pair safety. Read the following safety information
carefully before attempting to operate or service the
instrument.

• Use caution when working above 60V dc or 30V
ac rms. Such voltages pose a shock hazard.

• When using the probes, keep your fingers away
from probe contacts. Keep your fingers behind
the finger guards on the probes.

• Place test leads in proper input terminals.

• Disconnect the live test lead before disconnect-

ing the common test lead.

• Avoid working alone.

• Disconnect the power and discharge high-

voltage capacitors before testing in Ohms
Continuity, Diode, Capacitance, and COMPO­NENT Test.

• Inspect the test leads for damaged insulation or
exposed metal. Check test lead continuity.
Damaged leads should be replaced.

• Do not use the GMM if it looks damaged.

• Select the proper function and range for your

measurement.

• When measuring current, turn the power off to
the circuit being tested before connecting the
GMM test tool in that circuit.

• Check GMM test tool fuses before measuring
current transformer secondary or motor winding
current. (See Testing the Fuses in the User
Maintenance chapter.) An open fuse may allow
high voltage buildup, which is potentially haz­ardous.

• Use clamp-on probes (current clamps) when
measuring currents exceeding 10A.

ix

867B/863

Users Manual

WARNING

m

Hazardous voltages are present on
the External Trigger input terminal
and any attached probe when the
GMM is measuring voltages greater
than 30V rms or 60V dc.

Replacing Fuses

The following fuses should be used:

• F 440 mA, 1000V, Minimum Interrupt Rating
10,000A.

• F 11A, 1000V, Minimum Interrupt Rating
17,000A.

Warning

Use of fuses with voltage ratings
below 1000V reduces protection.
Do not replace the 440 mA 1000V
fuse with a 4/10A 600V fuse.

m

$

WARNING

m

CAUTION

s

Equipment protected throughout by DOUBLE
INSULATION or REINFORCED INSULA­TION.

mm

Overload Protection

Voltage or Current Input: 1000V
Surge Protection: 8 kV
Maximum Voltage Isolation to Ground: 1000V

Protection Levels:

(fixed distribution-level installations which can
experience peak voltage transients up to
8000V.)

Protection Class: II

risk of electric shock.

see explanation in manual.

per IEC 1010-1; 1000V CAT III

s

x

The NiCd battery pack must be fully charged before using the 867B. See Chapter 3.

A

COM

V

mA/

A

EXT TRIG

A

COMPONENT

TEST

SET UP

mV

V

V

OFF

LOGIC

HiZ

FREEZE

DISPLAY

MODE

SAVE

PRINT

MIN

MAX

RANGE

WAKE UP

HZ

TOUCH

HOLD

12345

mA

A

B

A

C

E

D

F

G

Your Graphical Multimeter

Figure 1-1. Graphical Multimeter Features

rita0091.eps

Chapter 1

A Quick Tour

Note

rita0092.eps

Figure 1-2. RS232 and AC Power Connections

1-1

867B/863

Users Manual

Table 1-1. Introducing Your Graphical Multimeter

ITEM SYMBOL DESCRIPTION

1-2

A

j

W

B

C

Combo

Meter

View

Trend

1
2
3

TURN THE GMM ON BY ROTATING THE SELECTOR TO ANY FUNCTION

selector to the
then the screen sets up for this function, and you are ready to begin. You can toggle the backlight
power level (Model 867B only) by pressing W. Also note that the screen goes dark if you do not
change any controls for about 20 minutes and the GMM is on battery power; pressing W wakes
up the screen (all models.)

THE SCREEN

secondary display of smaller digits, and a graphical window showing either a waveform or an
analog NeedleGraph representation of the primary display. In addition, the upper screen line
displays status information. The bottom screen line (immediately above the softkey labels) shows
the display mode, range, and other information. For example, “Combo” appears on this line if a
waveform appears in the graphical window: the GMM is in Combo Mode.

THE SOFTKEYS.

along the bottom of the screen. These labels define the present uses for the five blue keys that
are positioned immediately below the screen. Together, the labels and the keys form a set of
Softkeys. These changing softkey definitions allow direct access to a wealth of GMM capabilities.
Refer to Figures 1-6, 1-7, and 1-8 at the end of this chapter for a roadmap to softkey use.

AC Volts (v)

. In AC Volts, the initial screen presents a primary display of large digits, a

Most control settings (selector change or key press) change the softkey labels

position. The input connections screen appears for a few seconds,

. Turn the rotary

4
5

Table 1-1. Introducing Your Graphical Multimeter (cont)

ITEM SYMBOL DESCRIPTION

A Quick Tour

Your Graphical Multimeter

1

D

E

F

G

d
F
P
M
r
H

V

C

X

A

a

B

RS232

THE HARDKEYS

operations in all functions. Pressing W wakes up the screen from Sleep Mode (all models) and toggles
the backlight power level on Model 867B. Although hardkeys can generally be pressed at any time,
certain feature combinations are not allowed. The GMM test tool rejects any hardkey press that is not
allowed; a long beep sounds. Chapter 4 explains each hardkey in detail.

MEASUREMENT CONNECTIONS.

familiarization: no actual connections are necessary during the Quick Tour. Volts, Ohms,
Continuity, Conductance, Diode Test, Capacitance, and Component Test measurements use

for the Red lead. Amps measurements use A for the Red lead. mAµA measurements

V

use

a

functions use
views.

LINE POWER OR BATTERY POWER.

power through the Battery Eliminator. New alkaline (AA) cells provide a minimum of 4 hours
operation. A fully charged BP7217 NiCd battery pack typically provides a minimum of 8 hours
operation. The battery eliminator recharges the NiCd battery pack on Model 867B. Refer to
Figure 1-4.

SERIAL PC OR PRINTER CONNECTION.

interface cable to communicate with a PC or printer. Refer to Chapter 6.

. Hardkeys appear immediately below the softkeys. Hardkeys perform the same

Review the input connection scheme now only for

for the Red lead. LOGIC Test measurements use

for the Black lead. Refer to Figure 1-3 for TL70A test lead connection

C

You can power the GMM with batteries or from ac line

Your GMM can use an optional optical serial

X

for the Red lead. All

1-3

867B/863

TL70A

Test Leads

Users Manual

1-4

Figure 1-3. Test Leads and Measurement Connections

rita0740.eps

A Quick Tour

Europe PN 942602 US PN 942599

JP PN 942610

UK PN 942607AU NZ

PN 944595

Your Graphical Multimeter

1

Figure 1-4. Using the Battery Eliminator

rita0770.eps

1-5

867B/863

Users Manual

Table 1-2. A Practice Session

STEP ACTION DESCRIPTION

1-6

1

2

d

J

3

1

CHANGE THE DISPLAY MODE

With the GMM still in AC Volts, press first d, then
screen changes to the View Mode, where the entire screen is used for displaying a waveform.
You can repeat this procedure to select any of the display modes available in AC Volts (Combo,
Meter, View, and Trend.) Refer to Table 1-3 for an overview of display modes available in each
function. Examples of all display modes (Combo, Meter, View, Trend, Logic Test, Auto Diode
Test, Component Test, and Sleep) follow this table. Along with the flexibility provided by multiple
softkey definitions, display modes increase the versatility of your GMM considerably.

Many operations activated in one display mode are retained when you select a new mode. For
example, “Rel”, “dB”, Min Max, range, and frequency measurement type are retained.

CHANGE THE FUNCTION

Rotate the selector to DC Volts (E). Observe that the display shifts back to Combo Display Mode.
(This is the default mode, as established on the screen you see when you turn the selector to
SET UP.)

USE THE SOFTKEYS

With DC Volts and Combo Mode still active, you can use the DC Volts Softkeys. For example,
press
deactivate “Rel”. Explore all five softkeys in this fashion. Press a key first to activate a selection
(label highlighted) and second to disable the selection.

to activate “Rel”: difference readings only are now displayed. Press

1

to change the display mode. The

3

1

again to

Table 1-2. A Practice Session (cont)

STEP ACTION DESCRIPTION

A Quick Tour

Your Graphical Multimeter

1

4

5

6

7

r

M

H

F

CHANGE THE MEASUREMENT RANGE

Press r to access the Range Softkeys, then press
“Manual” ranging.) Press
DC Volts Softkeys.

ENABLE MIN MAX READINGS

Press
readings. Press M again to deactivate Min Max.

ENABLE TOUCH HOLD

Press H to begin holding the last valid reading in the display, even if the test leads are
withdrawn from the measurement point. h appears in the upper status line. Press H again to
stop Touch Hold

CHANGE THE TYPE OF FREQUENCY DISPLAY

Press F to access the Frequency Softkeys.
The frequency reading (which was in the secondary display) and DC Volts reading (which was in
the primary display) are swapped.
The softkeys allow you to select different types of frequency measurements (Hz, Duty Cycle,
Pulse Width, or Period). Press
Volts Softkeys. Primary and secondary displays swap again, and the change to “Period” frequency
measurement continues in the secondary display.

to start displaying the maximum (“Max”), average (“Avg”), and minimum (“Min”)

M

to switch back to “Auto” ranging, then press r to return to the

1

to select “Period”, then press F again to return to the DC

4

to select a higher range (and activate

2

1-7

867B/863

Users Manual

Table 1-2. A Practice Session (cont)

STEP ACTION DESCRIPTION

8

9

P

LOOK AT THE SAVE/PRINT SOFTKEYS

Press P to access the Save/Print Softkeys. You can now use the softkeys to exercise various
save, recall, and print features. Refer to Chapter 6 for more information. (Waveform save/recall is
not available on Model 863.)

TURN THE GMM OFF

o

About This Manual

This Quick Tour has introduced you to all the
features necessary to use your GMM. If you are
comfortable with this level of information, continue on
to Chapter 2 for specific information keyed to each
type of measurement. If you want more information
about any of the features, refer to Chapters 3
through 8, as follows:

Chapter 3

•

controls, screen, and input connections.

Chapter 4

•

hardkeys (

1-8

: General descriptions of the GMM

: Complete instructions for using the

d F P M r H

).

Chapter 5

•

detail.

Chapter 6

•

and Configuration Changes using SET UP.

Chapter 7

•

replacement, etc.)

Chapter 8

•

Index

•

: View Mode and Trend Mode, in

: Save, Recall, and Print using

. User Maintenance (battery and fuse

: Specifications

P

A Quick Tour

Combo Mode

1

Combo Mode

Combo

Meter View Trend Exit

Combo Mode presents both
digital and graphical views of the
measurement and can be used
in VAC, VDC, mV DC, Amps,
and mAµA functions. Combo is
the default mode in these
functions.

Meter Mode

Combo

Meter is the only mode available in Diode and
Capacitance Test.

Meter

View Trend Exit

Meter Mode presents both a
digital reading and an analog
position indication of the
measurement. You can select
Meter in VAC, VDC, mV DC,
Ohms, Amps, and mAµA
functions; you can also set Meter
on the SET UP screen as the
default mode in these functions.

View Mode

Combo Meter

Trend Mode

Combo Meter View

View

View Mode displays a full-screen
waveform. It is available in VAC,
VDC, mV DC, Amps, and mAµA
functions.

Trend Mode presents a digital
reading of the measurement and
plots that reading over time. It is
available in VAC, VDC, mV DC,
Ohms, Amps, and mAµA
functions.

Trend Exit

Trend

Exit,

1-9

867B/863

Users Manual

Auto Diode Test Mode

Meter

Auto Diode Test presents a DC
voltage reading and a symbol
representing the state of the
diode (forward, reverse, open,
short, unknown.)

Logic Test Mode

Logic

Logic Test shows icons
representing high and/or low logic
state along with frequency and
voltage readings of logic activity.

Exit

Exit

Component Test Mode

Comp.

Test

Component Test displays a
unique pattern representing the
characteristics of the in-circuit
component being tested. This
signature can resemble a
straight line for purely resistive
components or an ellipsoid for

frequency-sensitive components.

Sleep Mode

restores the screen.

W

Sleep Mode comes on
automatically during battery
operation if you do not press a
key or turn the selector for
approximately 20 minutes.

Exit

1-10

Table 1-3. Functions and Display Modes

FUNCTION

A Quick Tour

Sleep Mode

1

Combo

Meter

View

Trend

Auto Diode

Logic

Comp.Test

vEe RDIi

•• • • •

•• • • • • •

•• • • •

•• • • • •

•

Lc

•

•

1-11

867B/863

ViewCombo Meter Trend Exit

Rel Peak

Hold

dB

150Ω

Rel Peak

Hold

dB

150Ω

Rel Peak

Hold

dB

150Ω Hi Z

Rel Peak

Hold

dB

150Ω

Rel Peak

Hold

dB

150Ω

DC &

AC rms

AC

DC

rms

Average

Rel Peak

Hold

DC &

AC rms

DC

AC

Rel Peak

Hold

rms

Average

Enable
RS232

Time

Longer

Restart

Trend

Time

Shorter

Average Sampled Exit

High

Low

Arm

Exit

Full

Auto

DC &

AC rms

Internal

External Exit

Arm

Exit

Slower ExitFaster

rms

Average

Full

Auto

Full

Auto

DC &

AC rms

AC

DC

DISPLAY

MODE

mA 1

Ω

uA 100Ω

mA 1

Ω

uA 100Ω

DC

AC

Users Manual

1-12

Figure 1-5. Volts and Amps Measurement Map

rita0330.eps

Meter Trend Exit

Rel

nS

Rel

Rel Auto

Diode

Rel

Enable
RS232

Time

Longer

Restart

Trend

Time

Shorter

DISPLAY

MODE

Average Sample

Normal

Glitch Exit

High

Low

nS

Auto

Diode

A Quick Tour

Sleep Mode

1

Figure 1-6. Ohms, Conductance, Diode Test, Capacitance Map

rita0340.eps

1-13

867B/863

TTL3VCMOS

5V

CMOS

2

Hz

20

Hz

2

kHz

18.75
kHz

200

Hz

Set Up

Self

Test Exit

Next
Item

Restore

All

Save

Set Up

Duty

Cycle

Period Exit

Pulse
Width

Min Max

Off

Restart Exit

Wave
Scale

Exit

Run

Pause

Auto

Manual

Users Manual

Figure 1-7. LOGIC Test, Component Test, Set Up

1-14

Figure 1-8. Hz Min Max, and Range Map

rita0360.eps

rita0350.eps

Chapter 2

Making Measurements

Note

Recharge the NiCd battery pack before using the 867B. See Battery Considerations in Chapter 3.

Introduction

This chapter shows overall procedures for making
measurements in any of the rotary selector positions.
Necessary input connections are shown. Softkeys
used with each of the display modes available for the
selected function are also shown.

Using the Selector

To begin using the GMM, turn the selector to any
of the indicated functions. Softkey labels
momentarily identify the display modes available for
this function, then proceed to list the softkeys
available with this function.

Softkeys

Any selector setting or hardkey press provides you
with a unique set of softkey labels along the bottom

of the display. These labels define the present uses
for the five blue keys that are positioned immediately
below the display.

In Combo and Meter display modes, some labels are
used with several different selector positions; see
Table 2-1 for descriptions of these common labels.
Other labels are unique for the selector position;
these labels are defined in this chapter as needed.

View and TrendGraph softkey labels are common
for all functions that can use these modes; refer to
Chapter 5 for a full discussion.

Hardkeys

Although hardkeys can generally be pressed at any
time, certain feature combinations are not allowed.
The GMM rejects any hardkey press that is not
allowed and tells you so with a long beep.

2-1

867B/863

Users Manual

Table 2-1. Common Combo/Meter Mode Softkeys

KEY FUNCTION DESCRIPTION

1
2

3

3

4

2-2

Rel

Peak

Hold

rms

Average

DC &

AC rms

dB

Start relative readings in the primary display (REL is displayed). The relative reference (stored
when “Rel” is selected) appears with the softkey.

Peak Hold displays the highest and lowest peak values encountered in the present measurement
function. These values replace either the secondary reading in Meter Mode or the graphical
display in Combo Mode.

Toggle between true “rms” (“rms” annunciator on in display) and “Average” (average responding,
rms indicating - no annunciator) readings in any ac function. The rms/Average selection remains
in effect until you change the selector position. The rms/Average settings made in one display
mode are automatically made for other display modes in the same selector position. “Average” or
“rms” can be set as the standard selection on the SET UP display.

In VDC or mV DC, use the full display to show the numerical “DC” and “AC rms” values. Press

again to return to the original display.

3

Show dBm values in the primary display. The “dB” value shown above this softkey identifies the
resistance used in computing dBm; 600Ω is the standard value. You can change this value from
the SET UP display. (Rotate the selector to SET UP, change the reference selection, then rotate
the selector back to the original ac function.)

Table 2-1. Common Combo/Meter Mode Softkeys (cont)

KEY FUNCTION DESCRIPTION

Making Measurements

Introduction

2

5

5

5
4

Full

Auto

Hi Z Enter the high input impedance mode in mV DC. “Hi-Z” appears at the top of the display. Press

AC
DC

/

The GMM automatically selects range, trigger level, and time base (in VAC and VDC for an
optimum display. If “Manual” is selected for Range in the SET UP screen, “Full Auto” does not
come on. Selecting “Manual” from the Range Softkeys deselects “Full Auto”.

again to return to “mV”. Activating “DC & AC rms” automatically cancels “Hi-Z”. You cannot use
Peak Hold with HiZ.

Toggle between “DC” and “AC” amps or mAµA measurements. “DC” is the standard
configuration.

Activate the beeper for continuity or Manual Diode testing; a beep then sounds each time the
voltage drop passes below 0.7V (Continuity) or the logic activity indicator flashes (LOGIC
Testing). A short circuit results in a continuous tone. If the reading goes above 30 volts, a
possibly dangerous voltage exists on the inputs but is not displayed. Therefore, the safety
indicator (l) lights.

2-3

867B/863

A COM

V

mA

/A

EXT TRIG

1

4

3

FREEZE

DISPLAY

MODE

SAVE

PRINT

MIN

MAX

RANGE

WAKE UP

HZ

TOUCH

HOLD

12 5

34

V

Red

Circuit

2

Users Manual

Measuring AC Volts

Figure 2-1. AC Volts Measurements

6

Turn the Selector to Volts AC. Display mode
softkeys appear momentarily; press a
softkey to select a new mode, or wait briefly
to accept the presently highlighted selection.

7
8

Connect the test leads
Use the AC Volts Softkeys as discussed

as shown.

below.

9

At any time, press
(Combo, Meter, View, or Trend) to show the
measurement in a different display mode.

rita0550.eps

All hardkeys are available in Volts AC.

d

and one of the softkeys

2-4

Using the AC Volts Softkeys

Combo or Meter Mode: refer to Table 2-1.

Rel Peak

Hold

View Mode: refer to Chapter 5.

Time

>

>

Base

Trigger

Trend Mode: refer to Chapter 5.

Enable
RS232

Time
Longer

rms

Average

Single

Shot

Time
Shorter

>

dB

600

Glitch

Capture

Trend
Type

Ω

>

>

Restart
Trend

Full

Auto

Full

Auto

Making Measurements

Measuring AC Volts

2

2-5

867B/863

FREEZE

DISPLAY

MODE

SAVE
PRINT

MIN

MAX

RANGE

WAKE UP

HZ

TOUCH

HOLD

12 5

34

V

A COM

V

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Red

Circuit

1

4

3

2

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A

Users Manual

Measuring DC Volts

Figure 2-2. DC Volts Measurements

6

Turn the Selector to Volts DC. Display mode
softkeys appear momentarily; press a
softkey to select a new mode, or wait briefly
to accept the presently highlighted selection.

7
8

Connect the test leads
Use the DC Volts Softkeys as discussed

as shown.

below.

9

rita0560.eps

At any time, press
(Combo, Meter, View, or Trend) to show the
measurement in a different display mode.

All hardkeys are available in Volts DC.

d

and one of the softkeys

2-6

Using the DC Volts or mV DC Softkeys

Combo or Meter Mode: refer to Table 2-1.

Rel Peak

Hold

View Mode: refer to Chapter 5.

Time

>

>

Base

Trigger

Trend Mode: refer to Chapter 5.

Enable
RS232

Time

Longer

DC &

AC rms

Single

Shot

Time

Shorter

600

>

Trend

Type

dB

Ω

Glitch

Capture

>

Full

Auto

>

Restart

Trend

Full

Auto

Making Measurements

Measuring DC Volts

2

2-7

867B/863

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SAVE

PRINT

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MAX

RANGE

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TOUCH

HOLD

12 5

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mV

HiZ

A COM

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4

3

Circuit

2

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Red

Users Manual

Measuring DC Millivolts

Figure 2-3. DC Millivolt Measurements

6

Turn the Selector to mV DC. Display mode
softkeys appear momentarily; press a
softkey to select a new mode, or wait briefly
to accept the presently highlighted selection.

7
8

Connect the test leads
Use the mV DC Softkeys as discussed

as shown.

above.

rita0570.eps

9

At any time, press

All hardkeys are available in millivolts DC.

d

and one of the softkeys
(Combo, Meter, View, or Trend) to show the
measurement in a different display mode.

2-8

Making Measurements

A COM

V

EXT TRIG

1

4

3

FREEZE

DISPLAY

MODE

SAVE

PRINT

MIN

MAX

RANGE

WAKE UP

HZ

TOUCH

HOLD

12 5

34

Red

2

mA/

A

Measuring Ohms, Continuity, and Conductance

Measuring Ohms, Continuity, and
Conductance

2

Figure 2-4. Ohms, Continuity, and Conductance

6

Turn the Selector to Ohms. Softkeys for
Meter and Trend Modes appear
momentarily. Wait briefly to accept Meter

4

to select Trend Mode.

d

and one of the softkeys

Mode, or press

7
8

9

Connect the test leads as shown.
Use the Ohms (Meter or Trend Mode)

Softkeys as discussed below.

F

is not available in Ohms; all other

hardkeys can be used.

At any time, press
(Combo, Meter, View, or Trend) to show the
measurement in a different display mode.

rita0580.eps

Measurements

2-9

867B/863

Users Manual

Using the Ohms Meter Mode Softkeys

Rel

2

(
beeps each time a low resistance continuity
measurement is encountered. For example,
beginning in the 300Ω range, the beeper goes on
when the resistance passes below 32Ω and off when
the resistance rises above 132Ω. You can select a
different range after activating the Continuity beeper;
each range uses different beeper on and off points.
For a list of these on and off points, see Continuity
Specifications in Chapter 8 of this manual.

3

(nS) begins conductance (nanosiemens “nS”)
readings in the primary display. Measurement
ranges are 300 nS and 3000 nS. (Megohm-only
readings continue in the secondary display.) Press

3

again to return to ohms (Ω) primary readings
(all ranges). Selecting conductance (nS)
automatically cancels active Min Max, “Peak Hold”,
Touch Hold, Continuity, and “Rel, and resets the
Trend plot. Frequency readings are not available in
conductance or ohms.

/

nS

/

) enables the Continuity beeper. The GMM

2-10

Making Measurements

A COM

V

EXT TRIG

1

4

3

FREEZE

DISPLAY

MODE

SAVE

PRINT

MIN
MAX

RANGE

WAKE UP

HZ

TOUCH

HOLD

12 5

34

Red

2

mA/

A

Testing Diodes and Measuring Capacitance

Testing Diodes and Measuring
Capacitance

2

Figure 2-5. Diode Test and Capacitance Measurements

6

Turn the Selector to Diode/Capacitance. The
GMM assumes Meter Mode.

7
8

Connect the test leads
Use the Diode/Capacitance Softkeys as

as shown.

discussed below. “Rel” and “/” (Continuity)
are not available in Auto Diode.

rita0590.eps

9

Pressing
beep sounds.

H

r

F

and

are not allowed in Diode Test.

is not allowed in Diode Test; a long

r is

allowed in Capacitance.

2-11

867B/863

Users Manual

Using the Auto Diode Softkeys

Auto

Diode

4

toggles between AutoDiode and Manual Diode.
When selected, Auto Diode is highlighted and one of
the following icons is displayed:

N
k
g
u
? (

5 ( &

) is highlighted for Diode Testing.

(short)

(open)
(unknown)

Pressing this key toggles to Capacitance (|) and
disables Diode Testing.

“Rel” and “/” (Continuity) are not available in Auto
Diode.

|

&

Using the Manual Diode Softkeys

Rel

4

selects Manual Diode testing (Auto Diode not

/

highlighted). Selecting Manual Diode initially sets
“Rel” and “/” (Continuity) off.

In Manual Diode test, voltage is developed across
the components(s) by a test current (approximately 1
mA with the test leads shorted) from the meter.
Voltage is read on a 0 to +3.000V range that can
measure up to five silicon diode or transistor
junctions in series. For a silicon diode, the typical
forward voltage is about 0.6V. Voltages greater than

3.00V or open test leads produce an overload (OL)
reading. If the digital reading is the same in both
directions, the diode junction is probably shorted. If
the display reads OL in both directions, the diode
junction is probably open. To protect sensitive
devices the open test lead voltage will not exceed

3.1V. Negative inputs (from an external power
source) are not suppressed.

Auto

Diode

|

&

2-12

Using the Capacitance Softkeys

A COM

V

EXT TRIG

Red

1

4

3

FREEZE

DISPLAY

MODE

SAVE

PRINT

MIN

MAX

RANGE

WAKE UP

HZ

TOUCH

HOLD

12 5

34

A

Circuit

2

mA/

A

Making Measurements

Measuring AC and DC Amps

2

Rel

5 (|&

) toggles between Capacitance

Measurement and Diode Testing.

Measuring AC and DC Amps

6

7
8
9

At any time, press
(Combo, Meter, View, or Trend) to show the
measurement in a different display mode.

Turn the Selector to Amps. Display mode
softkeys appear momentarily; press a
softkey to select a new mode, or wait briefly
to accept the presently highlighted selection.

Connect the test leads
Use the Amps Softkeys as discussed below.

as shown.

All hardkeys are available in Amps.

d

and one of the softkeys

|

&

rita0600.eps

Figure 2-6. Amps Measurements

2-13

867B/863

Users Manual

Using the Amps Softkeys

AC Amps (Combo/Meter Mode): refer to Table 2-1.

Rel Peak

Hold

DC Amps (Combo/Meter Mode): refer to Table 2-1.

Rel Peak

Hold

View Mode (AC or DC Amps): refer to Chapter 5.

Time

>

>

Base

Trigger

Trend Mode (AC or DC Amps): refer to Chapter 5.

Enable
RS232

Time

Longer

rms

AveragedB600

DC &

AC rms

Single

Shot

Time

Shorter

>

Trend

Ω

dB

600

Ω

Glitch
Capture

Type

>

>

AC
DC

AC
DC

Full

Auto

Restart

Trend

2-14

Making Measurements

A COM

V

EXT TRIG

Red

1

4

3

FREEZE

DISPLAY

MODE

SAVE

PRINT

MIN
MAX

RANGE

WAKE UP

HZ

TOUCH

HOLD

12 5

34

Circuit

2

mA

A

mA/

A

Measuring AC and DC Milliamps and Microamps

Measuring AC and DC Milliamps
and Microamps

2

Figure 2-7. Milliamp and Microamp Measurements

6

Turn the Selector to mAµA. Display mode
softkeys appear momentarily; press a
softkey to select a new mode, or wait briefly
to accept the presently highlighted selection.

7
8

Connect the test leads
Use the mAµA Softkeys as discussed below.

9

All hardkeys are available in mAµA.

At any time, press
(Combo, Meter, View, or Trend) to show the
measurement in a different display mode.

d

and one of the softkeys

rita0610.eps

as shown.

2-15

867B/863

Users Manual

Using the mAµA Softkeys

AC mAµA (Combo/Meter Mode): refer to Table 2-1.

Rel Peak

Hold

DC mAµA (Combo/Meter Mode): refer to Table 2-1.

Rel Peak

Hold

rms

Average

DC &

AC rms

mA 1

µA 100

mA 1

µA 100

Ω

Ω

Ω

Ω

AC
DC

AC
DC

4

(mA 1Ω; µA 100Ω) In Combo or Meter Mode,
this softkey toggles between “mA” and “µA”
measurements. (“mA” is the standard configuration.)
Each toggle cancels Min Max, Touch Hold, “Peak
Hold”, and Rel and resets the Trend plot. “1Ω” and
“100Ω” represent the shunt resistances used for mA
and µA, respectively.

NOTE

If measuring <3 mA, using 3000.0 µA range
will give you better resolution.

View Mode (AC or DC mAµA): refer to Chapter 5.

Time

Base

>

>

Trigger

Single

Shot

>

Glitch
Capture

>

Full

Auto

Trend Mode (AC or DC mAµA): refer to Chapter 5.

Enable
RS232

Time

Longer

Time

Shorter

Trend

Type

>

Restart

Trend

2-16

The GMM autoranges in “mA” or “µA” (two ranges
are available for each selection) but does not
autorange between “mA” and “µA”. If manual range
is selected, “mA” assumes the 30 mA range, and
“µA” assumes the 300 µA range. The µA ranges are
not available on Model 863.

F

swaps the mA or µA in the primary display with
the frequency reading in the secondary display.
Subsequent changing between mA and µA or DC
and AC swaps the primary and secondary displays
back.

Making Measurements

FREEZE

DISPLAY

MODE

SAVE

PRINT

MIN
MAX

RANGE

WAKE UP

HZ

TOUCH

HOLD

12 5

34

A COM

V

EXT TRIG

Red

mA/

A

1

4

3

2

COMPONENT

TEST

Using Component Test

Using Component Test

2

Figure 2-8. Component Test

rita0630.eps

6
7
8

Turn the Selector to COMPONENT TEST.
Connect the test leads

as shown.

Use the COMPONENT TEST Softkeys as
discussed below.

9

Since COMPONENT TEST uses its own
display mode, only W,

P

, and

operate normally.

Caution

To avoid damage to the circuit,
Component Test should be used only on
unpowered circuits.

H

2-17

867B/863

Users Manual

Using COMPONENT TEST Softkeys

2

Hz

Use COMPONENT TEST to measure the
characteristics of a passive component (in or out of
circuit, no power applied). When you use the
General Measurement Connection, the GMM
provides an ac stimulus signal to the component and
plots the voltage drop against the current
measurement. The resulting pattern provides
information about passive circuit conditions.

Generally, resistors exhibit some form of straight or
angled line. Diodes or transistors appear as straight
lines with right-angle ends. Frequency-sensitive
components (inductors, capacitors) portray some
form of an ellipsoid pattern based on the current­voltage phase shift dictated by the stimulus
frequency and the inductance or capacitance.
Combinations of these components exhibit hybrid
patterns. Although the number of such
COMPONENT TEST signatures can be limitless,
you will become familiar with a few characteristic
signature patterns that will greatly aid in component

20

Hz

200

Hz

2

kHz

18.75
kHz

and circuit diagnosis. Some sample signature
patterns are shown on the following page.

Press one of the softkeys to select the frequency of
the stimulus signal. For components that do not
change impedance with frequency (resistors, diodes,
and transistors), the frequency selection is not
critical for a meaningful display. For components that
do change impedance with frequency (inductors and
capacitors), an appropriate COMPONENT TEST
frequency selection is necessary. Inductance greater
than 8.5 mH can be displayed. Capacitance can be
displayed according to the guidelines in Table 2-2.

Table 2-2. Component Test (Capacitance)

Frequency Capacitance

2 Hz 0.72 µF to 72 µF
20 Hz 0.072 µF to 7.2 µF
200 Hz 7200 pF to 0.72 µF
2 kHz 720 pF to 0.072 µF

18.75 kHz 77 pF to 7700 pF

2-18

Making Measurements

Using Component Test

2

Figure 2-9. Component Test Patterns

rita0800.eps

2-19

867B/863

A COM

V

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LOGIC

1

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MODE

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MAX

RANGE

HZ

TOUCH

HOLD

12 5

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3

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Red

Circuit

Users Manual

Testing for Logic Activity

(not available on Model 863)

2-20

Figure 2-10. LOGIC Testing

rita0620.eps

6
7
8
9

Turn the Selector to LOGIC.
Connect the test leads

as shown.

Use the LOGIC Testing Softkeys as shown.
The following hardkeys can be used

:

d P M

For the logic activity indicator, [ represents a logic
high, and ] represents a logic low. A horizontal bar
represents an indeterminate condition (no high or
low detected since the previous reading.) The logic
indicator flashes at a 10 Hz rate for activity faster
than 10 Hz or at the actual rate if activity is slower
than 10 Hz.

The actual logic frequency is shown in the primary
display. Frequencies to 10 MHz and higher can be
measured. DC Volts levels are shown in the
secondary display.

Using the Logic Test Softkeys

TTL

3 V

CMOS

5 V

CMOS

/

Making Measurements

Testing for Logic Activity

2

1, 2

logic activity indicator and frequency reading. “5V
CMOS” is the standard configuration. A new
selection cancels the old selection. See Chapter 8
for threshold values.

4 (/

to indicate logic activity. The beeper is off in the
standard configuration. If the reading goes above 30
volts, the safety indicator (l) lights.

) activates the beeper; a beep then sounds

, and

3

select the trigger point for the

2-21

867B/863

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HOLD

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A

mV

V

V

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mA/

A

mA

A

Users Manual

Measuring Frequency

You can measure low frequency signals (2 Hz to 2
MHz) with the procedure shown below. For higher
frequency signals (to 10 MHz and above), use the
Logic Test function.

6

Turn the Selector to any of the indicated
positions. (Frequency can be measured in
VAC, VDC, mV DC, A, and mAµA.)

7

Connect the test leads as required for the
selected measurement position.

8
9

The frequency counter trigger levels are set to
predetermined levels while the GMM is in the single
trigger mode. In dual trigger mode, the frequency
counter trigger levels are set initially (full auto) based

Press

F

.

Use the Frequency Softkeys as discussed
below.

on a percentage of the input signal. You can change
both levels with the Trigger Softkeys in the view

Figure 2-11. Frequency Measurements

rita0640.eps

mode. Manually setting these levels may cause the
frequency counter to be unstable or not count at all.

2-22

Making Measurements

Measuring Frequency

2

Either press the Full Auto softkey or manually adjust
the trigger levels in view mode to obtain a stable
frequency reading.

Using the Frequency Softkeys

x
y

1

selects low side
for frequency, period, duty cycle, and pulse-width
measurements. Positive is the standard selection.

2

(Duty Cycle) selects duty cycle measurements
for the pulse (negative going or positive going)
selected with

3

(Pulse Width) selects pulse-width
measurements for the pulse (negative going or
positive going) selected with

4

(Period) selects period measurements of the
full signal (negative going or positive going).

5

(Exit) returns to the Display Mode Softkeys.

Duty

Cycle

1

Pulse

Width Period Exit

x

or high side

.

1

.

y

pulse

Frequency Operation

The frequency measurement type (Hz, duty cycle,
pulse width, or period) normally appears in the
secondary display.
secondary display readings and accesses the
Frequency Softkeys. You can then select a new
frequency type.

F

Press
function to the primary display and move the
frequency reading back to the secondary display.

F

Press
secondary readings.

at any time to swap primary and

F

swaps primary and

a second time to restore the selector

2-23

867B/863

Users Manual

Frequency Considerations

F interacts with other features in several ways.
Generally, features that are active in the selector
function are retained when you press F. For
example, active features in VAC, such as “Peak
Hold”, “rms” or “Average”, or “dB” would stay
activated.

If you press any other key while the Frequency
Softkeys are active, the Frequency Softkeys are
deactivated and the frequency type is retained.

F cancels Min Max, Touch Hold, “Rel”, and the
Continuity functions and resets the plot in Trend
Display Mode.

Turning the selector to another position resets the
frequency measurement display to “Hz” in the
secondary display. Duty cycle, pulse width, and
period selections are not retained.

If you press F while the selector is set to Ohms,
Conductance, Diode Test, COMPONENT TEST,
LOGIC, or SET UP, the GMM emits a long beep and
ignores the key press.

The frequency measurement type (Hz, duty cycle,
pulse width, period) does not change when you
change display mode; the type remains in the
primary or secondary display as last selected.

In Amps functions, moving between “AC” and “DC”
or “mA” and “µA” swaps the frequency reading back
to the secondary display.

Pressing F cancels Touch Hold. While F is
active, you can press H to activate Touch Hold,
which then works normally with the frequency type
shown in the primary display.

Pressing F cancels Min Max. Pressing M when
F is active accesses the Min Max Softkeys but
retains frequency as the primary function.

If you press F when P is active, the GMM
beeps and ignores the key press. While F is
active, pressing P accesses the Print/Save
Softkeys, retaining the frequency primary display
selection.

2-24

Chapter 3

Some General Descriptions

Introduction

This chapter adds some details about GMM operation and
measurement connections.

Battery Considerations

New alkaline (AA) cells provide a minimum of 4 hours
operation. A fully charged NiCd battery pack (BP7217)
typically provides 8 hours operation. Connect the battery
eliminator to recharge the NiCd battery pack for the 867B.
Fully charge the battery pack before using the 867B.
External charging (use Battery Charger BC-7210 - not
provided) must be used to charge a NiCd battery pack for
Model 863. Refer to Chapter 7 (User Maintenance). Model
867B uses an internal two-state charger. The initial
charge state is at approximately 170 mA (±30 mA) to
allow for full overnight charging (16 hours minimum). The

second charge state is at approximately 40 mA (±15 mA)
to allow for battery charge maintenance without full
charging from a discharged condition.

Display Blanking (Sleep Mode)

During battery operation the display will blank after about
20 minutes if no controls have been changed. Press the
wake up key once to restore the display.

If the battery eliminator is connected, these battery saving
features are not used. If a time-dependent measurement
(Min Max, Trend, etc.) is in progress during battery
operation, the backlight will go off after 20 minutes, but
the Model 863 display will not blank until a low battery
condition is reached. When the display blanks, no
measurements are taken.

3-1

867B/863

Users Manual

Using the Backlight (Model 867B)

If the display is already on, pressing W toggles the
backlight power level.

NOTE

If the display is blank and cannot be recovered,
contrast may be off the scale. Restore contrast to
mid-scale with the following shortcut: turn the
selector to SET UP and avoid touching any key
until the display reappears (about 15 seconds).

1

Press
selector to the desired function.

to store this setting, then turn the

Adjusting Contrast

Adjust contrast as follows:

1. Rotate the selector to SET UP.

2. With “LCD Contrast” highlighted, press 2 or 3

to change the contrast. This setting becomes
effective immediately.

3. If you want to make this setting part of the power-up
defaults, press 5. The GMM then assumes this
contrast setting each time you turn it on.

4. Rotate the selector to the desired measurement or
test function.

When the GMM is left idle in Setup mode for 12 seconds,
the contrast will return to the LCD’s default setting.

General Features

Refer to Figure 3-1 and Table 3-1 for an overall
description of the controls, displays, and connections.

3-2

Some General Descriptions

A

COM

V

mA /

A

EXT TRIG

COMPONENT

TEST

CAT

LOGIC

SEE WARNINGS ON BACK

A

COMPONENT

TEST

SET UP

mV

V

V

OFF

LOGIC

HiZ

10A MAX FUSED

1000V MAX

1000V MAX

ALL INPUTS

1000V MAX

FREEZE

DISPLAY

MODE

SAVE

PRINT

MIN
MAX

RANGE

WAKE UP

HZ

TOUCH
HOLD

12345

320mA MAX FUSED

12

11

10

9

2

3

4

5

7

1

6

13

14

15

8

mA

A

General Features

3

Figure 3-1. General Features

3-3

867B/863

Users Manual

Table 3-1. General Features

Number Example Name Description

1 Combo

Meter

View

Trend

2 Rel Softkey

3

4

5

1

r

M

3-4

Display

Labels

Softkeys

Range
Key

Min Max
Key

Combo, Meter, View, and Trend are the standard measurement display modes
for most functions. Auto Diode Test, LOGIC Test, and COMPONENT Test use
unique display modes. Refer to Figure 3-3 for descriptions of display features.

Labels define present uses for associated softkeys. A highlighted label means
that item is presently selected. Labels change with rotary selector positions and
key presses. If a small
an additional set of softkey labels (a submenu) by pressing this softkey.

The five blue softkeys serve different functions, depending on the rotary
selector position and other keys in effect.

Press at any time to change the range of a meter reading or the amplitude of a
waveform. Select “Auto” (the standard selection) for an optimal display or
“Manual” for selection of a specific range. Present range information is shown in
the lower right corner of the display. Refer to Range Softkeys in Chapter 4.

Press once to enable a display showing minimum, average, and maximum
values. Refer to Min Max Softkeys in Chapter 4.

symbol appears with a softkey label, you can access

>

Table 3-1. General Features (cont)

T

Number Example Name Description

Some General Descriptions

General Features

3

6

7

8

9

10

H

V

C

A

a

P

W

Touch Hold
Key

Rotary
Selector

Input
Connections

Save/Print
Key

Wake Up
Key

Press once to enable Touch Hold. The GMM test tool beeps and
automatically updates the display each time a change in the reading is
detected. If the input connections are withdrawn, the last reading (or
waveform) is held in the display. Toggles Touch Hold on and off.

Rotate the selector to any of the measurement or test positions. The input
connections screen appears briefly, when first turned on or when selecting
a function requiring an input connection change, then softkey labels
specific to the selector position appear.

Use
conductance, diode test, capacitance, COMPONENT TEST). Use A (or
mAµA) and COM for amps measurements. Use EXT TRIG and COM for
LOGIC Test or as an external trigger for waveform display.

Freeze the present reading (reverse contrast). You can then save or recall
measurement values and configurations or print measurement information.
In Model 867B, you can also save or recall waveforms and configurations.
Refer to Chapter 6.

Press to restore a blanked display; the display blanks after 20 minutes if no
controls are changed. The display will not blank if the battery eliminator is
connected. For Model 867B, this key toggles the backlight power level
when the GMM test tool is already awake.

and COM for most measurements and tests (volts, ohms,

V

3-5

867B/863

Users Manual

Table 3-1. General Features (cont)

Number Example Name Description

3-6

11

12

13

14

15

F

d

B

Frequency
Key

Display
Mode Key

RS-232
Optical Port

Battery
Eliminator
Connection

Calibration
Seal

Swaps primary and secondary displays. The frequency measurement type
(usually Hz) now occupies the primary display and the Frequency Softkeys
are active. You can now select a different frequency type with the softkeys.
Press F again to swap the primary and secondary displays back,
retaining the most recent frequency type.

Press to access the Display Mode Softkeys at any time. For volts and
amps functions, you can now select Combo, Meter, View, or Trend. Ohms
offers Meter or Trend. Other selector functions offer only Meter, while
LOGIC, COMPONENT Test, and SET UP use their own unique display
modes.

Connect the RS-232 serial interface cable here for communications with a
PC or printer.

Connect the battery eliminator for ac operation. A NiCd battery pack
installed in Model 867B charges whenever the battery eliminator is
connected.

Do not open this protective seal. Refer to the Service Manual.

Understanding Display Features

12 5

34

ViewMeterCombo Trend Exit

Figure 3-3 illustrates typical display features. You will
encounter Primary and Secondary Displays and the
Graphical Window in Combo, Meter, and Trend Display
Modes. Other display features will appear in all display
modes.

Input Connections Screen

When you select a new function, the Input Connections
Screen (Figure 3-2) appears momentarily to identify
measurement connections to use, and displays modes
that are available. (You can press
3-second pause to proceed immediately to the function
display.) See Table 3-1 under Input Connections.

“Exit” during this

5

Some General Descriptions

Understanding Display Features

Figure 3-2. Input Connections Screen

3

rita0601.eps

Primary Display

Large digits represent the measurement or test based on
the selector position. This display always appears in
Meter, Combo, and Trend modes. The frequency reading
(usually Hz) can be swapped into the primary display.
When selected, “Rel” or “dB” automatically occupy the
primary display.

Secondary Display

Smaller digits show the type of frequency reading (usually
Hz) selected with the Frequency Softkeys. The primary
reading can also be swapped into this display.

Graphical Window

This window shows a waveform in Combo Mode, an
analog display in Meter Mode, or a plot in TrendGraph
Mode.



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Window

Display

Secondary Display

Primary Display

Status Line (Lower)

Softkey Labels

Status Line (Upper)

Users Manual

Softkey Labels

The present uses for the five softkeys appear immediately
below the display.

Upper Status Line

The top display line identifies active operations as shown
in Table 3-2.

Lower Status Line

The bottom display line (immediately above the softkey
labels) identifies the display mode, function, and range.

safety indicator also appears here if dangerous

The

l

voltage is detected at the input terminals when the actual
reading is not displayed.

Message Boxes

Message boxes appear in the lower display when the
GMM test tool is performing an operation that you may not
want to interrupt (“Saving” or “Printing”).

Overload Indication (OL)

“OL” or “-OL” appears in the primary and secondary
displays when an input has exceeded the present range
(in Manual) or has exceeded the highest range available
in this function (in Auto). A clipped waveform can appear
in Combo or View mode (DC Volts, mV DC, DC Amps, DC
mAµA functions only) if a large ac signal is riding on an
overloaded dc signal.

Figure 3-3. Display Features

rita0390.eps

3-8

Table 3-2. Display Status Information

SYMBOL DESCRIPTION

Some General Descriptions

Understanding Display Features

3

h

REL “Rel” (relative reading) is active

Min Max Min Max is active. This is the only

RS232 The serial interface port is enabled.

Hi-Z Hi input impedance selected.

b
B

Uncal GMM not calibrated. Contact a Fluke

Internal Internal trigger (or External.)

l

Touch Hold is active.

(reference minus actual reading.)

indication if Min Max is running in the
background.

Battery is low.
Line power operation.

Service Center.

Dangerous voltage is present at the
input terminals when the actual reading
is not displayed.

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A COM

V

EXT TRIG

Red

Circuit

mA/

A

A COM

V

EXT TRIG

Red

Circuit

mA/

A

Users Manual

Measurement Connections

Warning

m

Never attempt a voltage measurement if a test
lead is in the amp (A) or milliamp microamp
(mAµA) input terminal. You might be injured
or the GMM TEST TOOL might be damaged.

General Measurement Connections

Volts, Ohms, Continuity, Conductance, Diode Test and
Capacitance connections are illustrated in Figure 3-4.

rita0384.eps

Figure 3-4. General Measurement Connections

Amps and mAµA Measurement Connections

Amps DC and AC and mAµA connections are illustrated in
Figures 3-5 and 3-6.

rita0382.eps

Figure 3-5. Amps Measurement Connections

3-10

Some General Descriptions

A COM

V

EXT TRIG

Red

Circuit

mA/

A

A COM

V

EXT TRIG

Red

Circuit

mA/

A

Measurement Connections

3

Figure 3-6. Milliamp and Microamp Connections.

Logic Test Connections

LOGIC Test connections are illustrated in Figure 3-7.

rita0381.eps

rita0383.eps

Figure 3-7. LOGIC Testing Connections

Frequency Measurement Connections

You can measure frequency from 2 Hz to 2 MHz in AC
Volts, DC Volts, mV DC, Amps, and mAµA functions. For
higher frequency readings (to > 10 MHz), use the Logic
Test function.

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3-12

Chapter 4

Using the Hardkeys

Introduction

Hardkeys can be used in many function and display
mode combinations. Although hardkeys are
mentioned throughout this manual, this chapter
provides a single source of detailed descriptions for
using hardkeys and their accompanying softkeys.

Using Display Mode Softkeys

Press d at any time. The Display Mode Softkeys
appear, showing the modes available with the
present measurement function. Modes available with
VAC, VDC, mV DC, A, and mAµA are shown.

Combo Meter View Trend Exit

The GMM test tool now highlights the present
selection and allows you to do the following:

• Change display mode. Softkeys for the new
display mode now appear.

• Return without changing the display mode.
Press d again, or press the softkey for the
selected display mode, or press 5 to exit.

Combo (the default mode set at the factory) appears
automatically when the selector is set to VAC, VDC,
mV DC, Amps, or mAµA. You can also select Meter
as the default for these functions on the SET UP
screen. Meter is the only mode available for Diode
and Capacitance Test. Meter and Trend are the

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Users Manual

choices for Ohms and Conductance. LOGIC TEST,
COMPONENT TEST, and SET UP each use a
single, unique mode.

The Display Mode Softkeys also appear briefly when
you rotate the selector to a new function. If you
make no mode selection within 2 seconds, the
softkeys shift automatically to the appropriate
function labels.

Using Frequency Softkeys

Softkeys accessed by pressing F are:

x
y

1 selects the low side x or high side y

pulse for frequency, period, duty cycle, and pulse
width measurements. Positive is the standard
selection.

2 (Duty Cycle) selects duty cycle measurements
for the pulse (negative going or positive going)
selected with 1.

3 (Pulse Width) selects pulse-width
measurements for the pulse (negative going or
positive going) selected with 1.

Duty

Cycle

Pulse
Width Period Exit

4 (Period) selects period measurements of the
full signal (negative going or positive going).

5 (Exit) returns to the Display Mode Softkeys.

Frequency Operation

The frequency measurement type (Hz, duty cycle,
pulse width, or period) normally appears in the
secondary display. F swaps primary and
secondary displays and accesses the Frequency
Softkeys, which you can use to select a new
frequency type.

Press F a second time to swap primary and
secondary displays back. The secondary reading
then continues to display the frequency
measurement type selected with the Frequency
Softkeys. The Frequency Softkeys remain active,
and you can change the frequency type shown in the
secondary display while these keys remain
displayed.

Press F at any time to swap primary and
secondary readings.

4-2

Using the Hardkeys

Save/Print Softkeys

4

Save/Print Softkeys

Softkeys accessed by pressing

Save
Screen

1

(Save Screen) accesses the Save Screen
softkeys, which allow you to save the present display
to a memory location. (Model 867B only.)

2

(Recall) accesses the Recall softkeys, which
allow you to display the contents of a memory
location.

3

(Print) prints the display. “Freeze” changes to
“Printing”, then reverts to “Freeze” when printing is
complete. You can stop printing by pressing
(Stop Print) or
ignored.

4

(Save Config.) accesses the Save Config
softkeys.

5

(Exit) returns to the original display. You can
also press
display. You must press one of these two keys to

>

Recall Print

5

P

>

(Exit); all other key presses are

again to return to the original

P

are:

Save

>

Config. Exit

3

return; other keys do not operate during the Freeze
display.

P

Press
updates. Display contrast is reversed, the “Freeze”
message appears, and the Save/Print Softkeys are
accessed. You can now Print display information or
Save and Recall display and configuration
information.

“Enable RS232” in TrendGraph Mode is canceled.
Touch Hold, Min Max, Trend, and “Peak Hold”
continue to update in the background (beeps
continue).

Refer to Chapter 6 for a full description of saving and
recalling operations available with Freeze.

to stop waveform and numerical value

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Users Manual

Min Max Softkeys

Softkeys accessed by pressing M are:

Min Max
Off Restart

Minimum, maximum, and average measurements
are displayed (with timer information) in the graphical
display (Combo and Trend) or meter display (Meter).

In the View mode, Min Max is enabled and the MIN ­MAX icon appears in the upper status line. However,
Min Max measurement readings and timer
information cannot be viewed on the waveform
screen.

1 (Min Max Off) turns the Min Max feature off.
The GMM test tool returns to its normal display
mode. Measurement values and timer information
cannot be recovered at this point.

2 (Restart) resets all values/timers and begins
with new values and timers. Previous measurement
values and timer information cannot be recovered at
this point.

Run
Pause Exit

3 (Run Pause) toggles between the normal “Run”
state and a temporary “Pause” condition. Changing
display modes when Min Max is active does not
change the “Run” or “Pause” state.

In Combo, Meter, and Trend modes, “Pause” turns
the “Min Max” icon at the top of the display dark, and
displayed values stop updating (although the
elapsed time continues counting.) In View Mode,
“Run” and “Pause” operate normally, but
measurement readings and timer information cannot
be viewed.

5 (Exit) returns the softkeys to the functions for
the selected measurement mode while the
remainder of the display remains unchanged. You
must use the Display mode key to return the window
and secondary displays to the Combo, Meter, or
Trend display. Min Max will remain enabled in the
background mode.

4-4

Using the Hardkeys

Range Softkeys

4

You can use Min Max with LOGIC to keep track of
the range of logic levels being encountered. Use the
following procedure:

1. With the selector turned to LOGIC, select logic

type by pressing

2. Press

3. Place the Min Max display in the background by

4. Check the Min Max values at any time by

Cancel Min Max by reselecting or changing the logic
type. (Press
Softkeys.)

M

and times now appears.

pressing
reappears, and the Min Max icon indicates that
Min Max recording is continuing in the
background.

repeating steps 2 and 3.

d 1

1, 2

1, 2

. The full Min Max display of levels

. The LOGIC activity display

3

, or

3

, or

from the LOGIC

.

Range Softkeys

Softkeys accessed by pressing

Auto

Manual

1

(Auto Manual) toggles between Auto and
Manual ranging. In Auto, the GMM test tool
automatically selects the range presenting the
highest resolution. Auto is the standard
configuration; Manual can be selected as the power­up configuration when the selector is in the SET UP
position. The GMM test tool resets to Autoranging
when you select “Full Auto” (by pressing
the VAC, VDC, or mV DC softkeys.)

2

and
(if available). If Auto ranging is active, [ or ] selects
Manual ranging and the next higher (lower) range.

[]

3

select the next higher (lower) range

r

are:

Wave
Scale Exit

5

from

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Users Manual

4 (Wave Scale - active in the View Display
Mode) enters manual ranging and cycles through
“units/Div” scaling factors of 1, 2, and 4 for the
vertical axis, effectively zooming in and out on the
waveform display. The scaling factors divide the
units/Div for the present range. “Wave Scale” is not
available in Meter Mode.

5 (Exit) returns to the softkeys previously in
effect. (You can also press r to return to the
previous softkeys.)

Entering Range cancels “Peak Hold”.

Touch Hold

This key allows you to hold a known good reading on
the display. (No special softkeys accompany Touch
Hold.) Use the following procedure:

1. Press H (

appears at top of the display.)

h

2. Apply measurement connections until you hear a
beep. This sound signifies that a stable reading
has been made. The display continues to update
with valid readings (and beeps) as long as you
maintain the measurement connections.

3. In Meter, Combo, and Trend display modes, the
last valid primary numeric reading is held; the
waveform in Combo and Trend is not held. In
View Mode and COMPONENT Test, the last
valid waveform is held.

Press H again to exit Touch Hold (
disappears.)

Touch Hold and “Peak Hold” are mutually exclusive:
activating one cancels the other. Touch Hold cannot
be activated when Frequency, SET UP, or LOGIC is
selected. Pressing F or d cancels Touch Hold.
Selecting “rms”, “Average”, or “Full Auto” cancels
Touch Hold. P stops Touch Hold display updates;
Touch Hold then continues to run in the background.
In view mode, selecting Touch Hold cancels “Glitch
Capture” and “Single Shot”.

h

4-6

Chapter 5

Using View and Trend Display Modes

Introduction

This chapter describes how to display a waveform in
View Display Mode and how to plot and interpret
measurement data over time in TrendGraph
Display Mode.

View Display Mode Basics

The GMM must know when to begin displaying
(trigger) a waveform. Triggering requires that a valid
signal level is specified, a direction for that signal
(positive going or negative going) is selected, and
the trigger signal source (internal or external) is set.

Setting the range for the vertical divisions and the
timebase for the horizontal divisions directly

influences the proportions and legibility of the
triggered waveform.

The type of waveform acquisition may also be
important. A continuous, internal trigger enables an
ongoing display of the input signal whenever you
turn the selector to a new function.

Using Full Auto

“Full Auto” allows the GMM to automatically select
the Trigger Level, Trigger Slope, Trigger Source,
Range, and Time Base necessary for an optimum
display of the input signal. If a good input is present,
you will see a waveform that nearly fills the screen.

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Users Manual

“Full Auto” (5) is enabled (highlighted) initially
when View Display Mode is activated if “Auto” is
selected in the SET UP screen and no manual
settings have been introduced.

“Full Auto” may not be automatically selected when
the GMM enters View Mode. If “Manual” is set as the
power-up default for Range on the SET UP screen,
“Full Auto” is not selected. Further, if you then
change to “Full Auto” by pressing 5 from the
View Mode Softkeys, “Manual” remains selected on
the SET UP screen and will be reapplied when you
change functions.

NOTE

Disabling any of the auto features turns the
“Full Auto” softkey label off (not highlighted.)
Other auto features then remain active.
Pressing

5

from the View Mode Softkeys

turns all auto features off at once.

Changing the Amplitude Range

You can use the softkeys accessed with r to
select a preset (Manual) amplitude range.

Using View Mode Softkeys

Time

>

>

Base

Trigger

1 (Time Base) accesses the Time Base
Softkeys, which allow you to zoom in or out on the
waveform by changing the horizontal (time) axis of
the View display.

2 (Trigger) accesses the Trigger Softkeys,
allowing you to control the trigger slope, level, and
source.

3 (Single Shot) accesses the Single Shot
Softkeys, which allow you to capture and examine a
single waveform that has met your trigger criteria.
The GMM test tool displays continuously updating
waveforms if this key is not pressed.

4 (Glitch Capture) accesses the Glitch Capture
Softkeys, allowing you to capture and examine a
waveform that has met a predetermined trigger
criteria with a briefly occurring spike. See Choosing
the Acquisition Type later in this manual for further
information on Trigger criteria for Glitch Capture.

Single

Shot

>

Glitch

Capture

>

Full

Auto

5-2

5

5 s

4.2 µs

8.3 µs
20 µs

50 µs

100 µs

200 µs

500 µs

1 ms

2 ms5 ms

10 ms

20 ms

50 ms

100 ms

200 ms

500 ms

1 s

2 s

2 3

Slower

Faster

(Full Auto) selects the range, trigger level, and
time base automatically to produce an optimum
display of the waveform.

Setting Up the Time Base

Time

Base

>

>

Trigger

Single

Shot

>

Glitch

Capture

>

Full

Auto

Using View and Trend Display Modes

Setting Up the Time Base

5

Select “Time Base” (

1

) from the View Mode
Softkeys, then use the Time Base Softkeys as
follows:

Slower Faster Exit

2

(Slower) selects the next longer time per
division. More waveform activity then appears in one
time division, effectively zooming out on the
waveform.

3

division. Less waveform activity then appears in one
time division, effectively zooming in on the
waveform.

5

(Faster) selects the next shorter time per

(Exit) returns to the View display.

Figure 5-1. Time Base Selection

rita0710.eps

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Users Manual

Setting Up the Trigger

Time

>

>

Base

Trigger

Select “Trigger” (
Softkeys, then use the Trigger Softkeys as shown in
the following paragraphs.

Selecting the Trigger Slope

Slope

K

Slope

t

1

(Slope) sets the waveform trigger to trip either
on the rising or falling edge of the signal for single
triggering. The counter triggering still use two (dual)
triggers for its operation and are set automatically
based on the input signal amplitude. In dual
triggering,
falling slope trigger points to allow their levels to be
set individually. The waveform trigger icon will switch
between two trigger points in the display as
selects each trigger. The rising slope setting will
always have a more positive setting than the falling
slope setting. However, whichever slope is left
selected will be the last criteria to be met before a

[]

1

Single

Shot

2

) from the View Mode

Glitch

>

Capture

Internal

External Exit

>

selects between the rising and

1

Full

Auto

trigger occurs, e.g., if the rising slope selection is left
highlighted, the input signal must pass through the
falling slope first and then through the rising slope to
trigger the GMM. In single trigger, Full Auto will
always set the trigger slope to rising.

The GMM trigger circuitry controls both the
waveform and counter displays. The counter always
uses a dual trigger setting while the waveform
display can be controlled by single or dual triggering.
The waveform trigger setting(s) are indicated in the
display with an icon in the left margin along the
vertical axis of the display grid (Figure 5-2). The
counter trigger settings are indicated by the two
icons along the right vertical axis and are marked
with “Hz”. The counter and waveform trigger settings
are the same when in Dual trigger operation. This is
the only condition where the counter trigger levels
are manually set.

5-4

Using View and Trend Display Modes

Setting Up the Trigger

Changing the Trigger Level

Slope

K

Slope

t

[ ]

Internal

External Exit

5

Figure 5-2. Trigger Icons

86xsc011.tif

2

the waveform must pass through to trigger the GMM.
For Internal triggering, the waveform trigger icon
identifies the level and moves as you make the level
adjustment. The actual trigger level is displayed in
the upper right corner of the display. For Dual
triggering, you must first select which trigger point
you want to adjust with the
The waveform icon will move from one point to the
other in the display as the slope selection is
changed. The counter trigger levels are linked with
the waveform trigger levels in dual triggering and are
the only time they can be manually set. For external
triggering, a single trigger level is set with the (
and ]) softkeys and is indicated in the special
trigger level indicator in the upper right corner of the
display. There are 21 different preset trigger levels
available for external triggering.

If “Full Auto” is selected, the trigger levels are set on
percentages of the input signal.

and

3 ([

and ]) change the trigger level

1

Slope selection.

[

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Users Manual

Selecting the Trigger Source

Slope

K

Slope

t

4

(Internal External) selects Internal or External

[]

trigger source. When “Internal” is selected, the
trigger circuit uses the measured input signal for
triggering. When “External” is selected, the trigger
circuit uses the signal placed on the EXT TRIG jack
for triggering. The waveform and counter trigger
icons are removed from the display and a special
trigger level indicator replaces the trigger level
readings in the upper right corner of the display
(Figure 5-3). There are 21 external trigger level
steps. You can provide a trigger from an external
source to synchronize the GMM display to some
other event. Refer to Specifications for External
trigger input levels.

5

(Exit) returns to the View Softkeys.

Internal

External Exit

Selecting Single or Dual Trigger

To accommodate various trigger situations, the
waveform can be triggered by one (single) or two
(dual) trigger settings. “Single” or “Dual” are trigger
selections you can be make from the SET UP

screen. When using external triggering, only one
trigger level may be set regardless of the set up
selection.

rita0392.eps

Figure 5-3. Setting Up the Trigger

5-6

Using View and Trend Display Modes

Choosing the Acquisition Type

5

Single triggering establishes a fixed trigger point for
the waveform display. The input signal only needs to
cross the trigger amplitude set by the trigger level
and in the direction set by the slope setting. While in
single trigger mode, the frequency counter trigger
circuit sets two predetermined levels that are not
adjustable. This ensures a stable frequency reading
while triggering the waveform with a single trigger.

Dual triggering (the default setting) requires that the
signal pass through both upper and lower trigger
points to trigger the waveform and frequency
counter. These points are initially set based on
percentages of the input signal amplitude. You can
change both levels with the Trigger Softkeys. Dual
triggering provides a more stable waveform display
in noisy environments.

Choosing the Acquisition Type

Time

>

>

Base

Instead of using the continuous internal trigger, you
can instruct the GMM to update the screen only
once, yielding a retained, snapshot view (“Single
Shot”) of an input signal meeting the trigger
requirements. Press
Softkeys.

Yet another selection allows you to display and
monitor only randomly-occurring or fast transient
events or glitches (“Glitch Capture”). Trigger levels
are preset and are not ajustable. The “Glitch” must
have a change rate higher that 1 kHz and an
amplitude > 20% of the selected GMM range.

“Single Shot” and “Glitch Capture” use the same
submenu of softkeys as described in the following
paragraphs.

Trigger

Single

Shot

3

from the View Mode

>

Glitch

Capture

>

Full

Auto

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Users Manual

Using Single Shot and Glitch Capture
Softkeys

Arm

1

(Arm) resets the trigger circuit and readies the
GMM test tool to capture another single shot
waveform or glitch capture transient. “Arm” is
selected (highlighted) initially. When the entire
waveform is captured, “Arm” reverts to normal
contrast.

The display shows elapsed time (hh:mm) since
arming or, if a trigger subsequently occurred, time
between arm and trigger. The time cycles from 00:00
through 99:59 continuously until a trigger is received.

<>

Exit

2

or right for viewing (available once the waveform is
completely captured). If you press
arm cycle starts over, < and > disappear, and the
arm-to-trigger time begins at 00:00. Waveform
position accomplished with < and > is retained
across arm cycles. Six time base divisions prior to
the trigger and 19 time base divisions after the
trigger can be viewed using < and >, respectively.
Refer to Figure 5-4 for an overview of time divisions
(on and off screen) that can be examined.

5

Free Run operation and autoranging are not
available during “Single Shot” and “Glitch Capture”.
Selecting Touch Hold cancels “Single Shot” and
“Glicth Capture”.

3

and

(Exit) returns to the View Softkeys.

(< and >) move the waveform left

1

again, the

5-8

Using View and Trend Display Modes

619

Choosing the Acquisition Type

5

Figure 5-4. Viewable Time Divisions (Single Shot and Glitch Capture)

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Trend Display Mode Basics

Trend can be used in VAC, VDC, mV DC, Ohms,
Amps, and mAµA functions. This mode uses the
graphical window to plot 120 data points over a
selectable time ranging from 1 second to 15 minutes.
Each data point can represent an actual reading, an
average of readings, or a pair of high and low
readings. You can also enable serial output of the
data points as they occur.

Using Trend Mode Softkeys

Enable
RS232

1

(Enable RS232) starts transmitting readings
(with time stamps) with the first press and stops
transmitting with the second press. (You can also

F

press
(hours:min:sec) resets each time RS232 is enabled.
The time rolls over at 24 hours. Refer to Chapter 6
for serial output connection descriptions.

2

or
the interval to use on the horizontal scale as data

Time

Longer

Time

Shorter

Trend

Type

>

to stop transmission.) The time stamp

3

(Time Longer, Time Shorter) selects

Restart

Trend

points are plotted on the trend graph. (Seconds: 1, 2,
5, 10, 15, 30, 45; Minutes: 1, 2, 5, 10, 15)

For “Sampled” and “Average” Trend Type selections,
the GMM plots the most recent 120 data points. For
“High Low” Trend Type, 120 data point pairs are
plotted. Earlier data points are not stored.

4

(Trend Type) accesses the Trend Type
softkeys, allowing you to plot average, sampled, or
high/low excursions of the measurement value.

5

(Restart Trend) starts plotting a new trend
graph as new samples are acquired. Primary
readings are displayed and plotted; there are no
secondary readings in Trend Mode.

Trend Mode Considerations

Only the value being trended is shown in the primary
display. For example, a “dB” or “Rel” value that
normally occupied the primary display in DC Volts
function will be replaced with a VDC reading.
Frequency values do remain in the primary display
during Trend.

The vertical scale in the Trend display depends on
the range setting and the type of measurement. A

5-10

Using View and Trend Display Modes

Using Trend Mode Softkeys

5

unipolar arrangement (0 to full scale) is used for
VAC, AAC, and frequency. Bipolar readings
(negative to zero to positive) are used for VDC and
Ohms.

RS232 Trend Output Format

Trend data for each data point is sent out as it is
measured. ASCII format is used, as follows:

•

For “Sampled” or “Average” Trend Type:
[Value] [Units] [Time Stamp] <cr> <lf>

•

For “High Low” Trend Type:
[Value High] [Units] [Time Stamp] <cr> <lf>
[Value Low] [Units] [Time Stamp] <cr> <lf>

•

For “Glitch” Trend Type (Ohms only), the
following line is added at the end of each
“Sampled” or “Average” line or pair of lines:

[Glitch State] [Time Stamp] <cr> <lf>

[Time Stamp] is in hh:mm:ss format, representing
time since the Trend start. Time rolls over at 24
hours.

Selecting the Trend Type

High

Average Sampled

1

(Average) plots the average of all samples

taken by the GMM during the plot interval.

2

(Sampled) plots the last sample taken by the

GMM at the time the data point is plotted.

3

(High Low) plots the maximum and minimum
sample value taken during the time interval. A
vertical bar where the bottom end represents the
lowest sample and the top end represents the
highest sample is placed on the plot.

4

(Normal Glitch) selects “Normal” or “Glitch” in
Ohms function only. Glitch setting display and
highlight fast-occurring discontinuities on the trend
line. Markers along the bottom of the display identify
discontinuities as they appear on the Trend Plot. A
discontinuity is recorded when the measured
resistance rapidly passes (decreasing or increasing)
through a low resistance continuity point. Each range
uses a different continuity point (See Continuity
Beeper Values in Chapter 8 of this manual). Note:
When Glitch is first enabled, the GMM sets manual

Low

Normal

Glitch Exit

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Users Manual

ranging and sets the range to 300Ω. It may by
necessary to manually change the range for an on­scale reading.

5 (Exit) returns to the Trend Softkeys.

5-12

Chapter 6

Using Save, Recall, Print, and Set Up

Introduction

This chapter contains instructions for using the
Save/Print key to save, recall, and print GMM test
tool display information and the SET UP selector
position to change the GMM test tool power-up
configuration.

Refer to Figure 6-1 for an overview of operations
accessible through the Save/Print key.

For Model 867B, refer to Figure 6-2 for instructions
on connecting a printer or PC to the GMM test tool.

Using the Save/Print Softkeys

Pressing P stops waveform and numerical value
updates, freezing the screen. Display contrast is
reversed, the “Freeze” message appears, and the
Save/Print Softkeys are accessed. You can now
Print display information or save and recall display
and configuration information.

If on, the “Enable RS232” feature (used in Trend
Mode) is canceled. Otherwise, active Touch Hold,
Min Max, Trend, and “Peak Hold” features continue
to update in the background (beeps continue).

6-1

867B/863

Save

Print Exit

Clear ExitSave

Load

Screen Exit

Clear Exit

Load

Config. ExitPrint

Stop
Print

Stop
Print

Users Manual

6-2

Figure 6-1. Freeze (Print/Save) Softkey Map

rita0370.eps

Using Save, Recall, Print, and Set Up

Saving Screen and Configuration

6

P

Save

Screen

1

(Save Screen) accesses the Save Screen
softkeys, which allow you to save the present display
to a memory location. (Model 867B only.)

2

(Recall) accesses the Recall softkeys, which
allow display of a memory location.

3

(Print) prints the display. “Freeze” changes to
“Printing”, then reverts to “Freeze” when printing is
complete. You can stop printing by pressing
(Stop Print) or

4

(Save Config.) accesses the Save Config.
softkeys.

5

(Exit) (or pressing
original display. You must press one of these two
keys to return; other keys do not operate during the
Freeze display.

>

Recall Print

5

>

(Exit); other keys are ignored.

P

Save

>

Config. Exit

again) returns to the

3

Saving Screen and Configuration

(Model 867B only)

Save

>

Screen

][

1

location. Basic information (a reading, etc.) is
displayed with the title for each memory location.

3

supporting configuration (message appears), then
returns to the Save/Print display.

4

appears only if something is saved in this memory
location.)

5

Save/Print display.

2 ([

and

(Save) saves the displayed information and

(Clear)) erases this memory location. (“Clear”

(Exit) (or pressing

Save Clear Exit

and ]) select the Memory

P

again) returns to the

6-3

867B/863

Users Manual

Recalling Screen or Configuration

>

Recall

View

>

][

1

and

2

cycle through memory locations

Memory

(seven configuration memories for all models and
three display memories on Model 867B only).

3

(View Memory) previews the selected memory
and accesses the View Memory softkeys. “View
Memory” does not appear if memory is empty.
Previewed memory always appears in reverse video.

4

(Load Screen or Load Config) directly replaces
the active display with the selected display from
memory. The selector function must match that of
the presently selected memory list item, and the
selected memory location must be occupied.

5

(Exit) returns to the Print/Save softkeys
(display frozen).

Load

Screen Exit

Previewing Screen or Configuration

>

Recall

][

1

and

2

previewing (reverse video).

3

(Print) begins printing the display. “Printing ...”
appears on the display and “Stop Print” defines the
softkey. Press
until “Print” becomes the softkey label again.

4

(Load Config. or Load Screen) can be used if
the selected memory matches the present selector
function configuration and the selected memory
location is occupied.

“Load Config” appears when you select one of the
seven configurations. The GMM loads the selected
configuration and returns to the active display.

View

>

Memory

Load

Print

Config. Exit

scroll through memory locations for

3

again to stop printing, or wait

6-4

Using Save, Recall, Print, and Set Up

Saving the Present Configuration

6

“Load Screen” appears when you select one of the
three screens. Press
waveform along with the active waveform. The GMM
assumes the time base and amplitude settings of the
stored waveform. With the recalled and active
waveforms both displayed, you can press
access the following three softkeys:
the two-waveform display;
the recalled waveform and return to the active
waveform display;
waveform display.

If you press any other key, the recalled waveform
clears and the display returns to the active
waveform.

In View Mode, the stored waveform must have been
saved while the GMM was in View Mode. The loaded
screen appears as solid lines. In COMPONENT
TEST, the stored memory must have been saved
while the GMM was in COMPONENT TEST.

5

(Exit) returns to the Print/Save softkeys

(display frozen).

4

to display the stored

3

4

“Clear Exit” to clear

5

“Exit” to return to the two-

P

to

“Print” to

Saving the Present Configuration

Save

>

Config.

][

1

3

numerical data sufficient to recreate this display. A
message appears while the configuration is being
saved. The GMM test tool then returns to the
Save/Print display.

4

appears only if something has been saved in this
memory location.)

5

2

and
(Save) stores present configuration and

(Clear) clears this memory location. (“Clear”

(Exit) returns to the Save/Print display.

select the Memory location.

Save Clear Exit

6-5

867B/863

Users Manual

Printing

Stop

Print

Do not print if the GMM is presently
controlled by FlukeView 860 application
software.

Use the following procedure for printing:

1. Verify appropriate “Printer Type”, “Baud Rate”,
and “Parity”. These selections appear as the last

Print

NOTE

three items on the SET UP screen (selector
turned to SET UP.)

2. Connect the GMM to a printer as shown in
Figure 6-2. Or, download the screen to
FlukeView 860 Application Software running on
a PC. Then print from FlukeView 860.

3. Set the GMM to display the screen you want to
print. The screen can be the active display or
one of the recalled screens.

3

4. Press

5. You can now press
time to cancel the screen printing.

(Print) to begin printing.

3

(Stop Print) at any

6-6

Correct

Incorrect

PAC91

PM9080

Using Save, Recall, Print, and Set Up

Printing

6

Figure 6-2. PC and Printer Connections

rita0270.eps

6-7

867B/863

Users Manual

Changing the Configuration

U

Set up Self

Test

(wait 2 seconds)

Next
Item

If no keys are pressed for 15 seconds after
the selector is turned to SET UP display
contrast returns to the default mid-scale
setting.

1. Beginning at the first line (LCD Contrast), press

1

<>

NOTE

to step through the other lines in this

Restore

All

Exit

Save

Set up

display. Continue pressing to wrap back to the
top line.
At each configuration line, press
make your selection. Then press
to the next line.

2. Press

3. Press

If you make SET UP changes and do not press
(Save Set up), the changes remain in effect only until
you turn the GMM off.

4

to restore all lines on this
configuration display to their standard settings.
You have two choices at this point. First, you can

5

press
information as the power-up configuration.
Second, you can use the retrieved standard
configuration as a starting point, change some of
the settings as described above, and then store
your customized settings as the new power-up
configuration.

presently shown on the display into nonvolatile
memory. These settings become effective
immediately and are reestablished each time the
GMM test tool is powered on.

now to save the displayed

5

to save all configuration settings

2

1

3

or

to move

5

to

6-8

Using Save, Recall, Print, and Set Up

Changing the Configuration

Table 6-1. Configuration Selections (SET UP)

SET UP ITEM SELECTIONS AVAILABLE DEFAULT

LCD Contrast Press < or > to adjust display contrast. (mid-range)

6

AC Converter “rms” or “Average”. This setting controls “rms” or “Average” softkey selection

in ac volts or amps functions.
Display Mode “Combo” or “Meter”. Combo
dB Reference dB ohms reference values: 2 4 8 16 50 75 93 110 125 135 150 300 600

900 1000 1200. Continue pressing > to select “Auto”, “Manual”, or “Disabled”.
Range “Auto” or “Manual”. Auto
Beeper “Enabled” or “Disabled”. Enabled
Sleep Mode “Enabled” or “Disabled”. Enabled
Trigger Mode “Dual” or “Single”. Dual
Printer Type “Epson”, “HP Graphics”, or “Text.” Epson
Baud Rate 1200, 2400, 9600, or 19200. 1200
Parity “no”, “even”, or “odd”. (Number of Bits is always 8; number of Stop Bits is

always 1.)

True rms

600

Ω

none

6-9

867B/863

Users Manual

6-10

Chapter 7

User Maintenance

Introduction

This chapter covers basic maintenance procedures
that can be performed by the user. For complete
service, disassembly, repair, and calibration
information, refer to the 867B/863 Service Manual
(PN 689312).

Cleaning

Clean your GMM test tool with a damp cloth and a
mild detergent. Do not use abrasives, solvents, or
alcohol.

Warning

m

To avoid ELECTRICAL shock, remove the
test leads and any input signals before
opening the case.

Testing the Fuses

Test the fuses with the following procedure:

1. Turn the selector to Ohms (

2. Connect a test lead between the
mAµA input terminals. Check that the display
reads less than 5Ω. This tests the 440 mA fuse.
If this reading is “OL”, refer to the following fuse
replacement information.

3. Move the test lead from the mAµA terminal to
the A terminal. Check that the display reads less
than 5Ω. This tests the high energy (11A) fuse. If
this reading is OL, refer to the following fuse
replacement information.

4. If either reading is outside the range shown,
have the GMM test tool serviced.

R

).

V

and

7-1

867B/863

Users Manual

Replacing the Batteries

The GMM test tool uses 6 AA alkaline batteries
(included with Model 863) or a nickel-cadmium
battery pack (BP 7217 - included with Model 867B).
Internal charging for the battery pack is provided with
Model 867B. The NiCd battery pack must be fully
charged before using the GMM. External charging
(using BC7210) is necessary if the battery pack is
used with Model 863 (instructions are included with
BC7210.) Refer to Figure 7-2 for battery replacement
instructions. Replace the NiCd battery pack when it
no longer holds a charge for the rated interval. Order
replacement Model BP7217 Nickel-Cadmium Battery
Pack. In the USA and Canada, call Fluke Service
Parts at [phone]. Elsewhere, call +1 425­356-5500 for instructions.

n

Note

If the Tester is dropped, it may not turn on.
Check the batteries to see if they are
damaged and need to be replaced.

Do not mix spent Nickel-Cadmium batteries with the
solid waste stream. Spent batteries should be

disposed of by a qualified recycler or hazardous
materials handler. Contact your authorized Fluke
Service Center for recycling information.

Replacing the 440 mA Fuses

m

Warning

Refer to SAFETY in the front of this
manual prior to replacing any fuse.

Refer to Figure 7-3 to locate and replace the 440
mA fuse(PN 934121). Note that the battery
compartment must be accessed first; refer to Figure
7-2 for these initial access procedures.

Replacing the 11A (High Energy)
Fuse

You must disassemble the GMM case to replace a
blown high energy (1000V, 11A) fuse (PN 943118).
The GMM’s safety design places this fuse inside the
case to protect the user and to encourage inspection
of the circuit board for damage if very high energies
have been encountered. Proceed as follows:

1. Set the GMM selector to OFF. Be sure to leave
the selector in this position throughout the
disassembly and reassembly procedure.

7-2

User Maintenance

Reassembly

7

2. Remove the six screws attaching the case
halves. Detach the case halves.

3. Remove the two screws securing the shield as
shown in Figure 7-1. Then pry the shield loose
from two stanchions at the top of the circuit
board.

4. Gently pull up on the shield tab and rotate the
entire shield away from the circuit board.

5. Remove the three screws securing the circuit
board to the front half of the GMM.

6. Dislodge the circuit board by pushing in on the
Volts-Ohms input connector from the lower right
front of the GMM. (See Figure 7-1, Detail A).

7. Lift the entire circuit board up approximately one
inch, dislodging the slotted Battery Eliminator
connection.( See Figure 7-1, Detail B).

8. Rotate the circuit board 180 degrees.

9. Remove the fuse.

Note

For a more detailed drawing, see the
Service Manual (PN 689312).

Reassembly

Generally, reassembly reverses the disassembly
procedure. Specifically, do the following:

1. Verify that the selector switch still points to OFF.

2. Place the case top face down on a non-marring
surface.

Note

At all times, avoid stressing the ribbon cable.

3. Grasp the board at the top and bottom so that it
can be smoothly lowered into position in the
case top.

4. As you begin lowering the board into position,
make sure the battery eliminator connection
(Detail B in Figure 7-1) slips into its slot snug
against the top case wall.

5. Gently press the board into position at the top
and bottom

6. Replace the three screws securing the board.

7. Rotate the shield back into place on the circuit
board.

8. Replace the case bottom. Tighten the six screws
(middle screws first) securing the case bottom.

7-3

867B/863

5

5

3

3

4

8

8

7

6

6

Users Manual

7-4

f7-1.eps

Figure 7-1. Replacing the 11A (High Energy) Fuse

User Maintenance

Operational Test

7

Operational Test

Use the following procedure to test the basic
operability of your GMM test tool:

1. With no inputs connected, turn the GMM test tool

v

on by rotating the selector to VAC (
Meter display mode should appear, with a
random display in the mV range.

E

2. Rotate the selector to VDC (
primary display in the mV range.

3. Rotate the selector to Ohms (
display of “OL”.

4. Connect the test leads to

5. Short the test lead tips and observe a display of
approximately 0.250 ohms.

6. Press

For a complete performance test of GMM test tool
functions and specifications, refer to the 863/867B
Service Manual (PN 689312).

2 (/

listen for a beep.

), short the test leads again, and

) Observe a similar

R

V

). Combo or

). Observe a

C

and

.

Self Test

Begin an internal diagnostic routine by selecting SET
UP, wait two seconds, press
now presents the following information:

1. A test pattern.

2. An error message (if a problem is encountered
during the test). The GMM test tool Model and
serial numbers.

3. The calibration status.

Generally, you cannot use the GMM test tool keys
during Self Test. (You can press
diagnostic routine and return to the SET UP
Softkeys.)

d2

1

. The display

to exit the

7-5

867B/863

Closed

AA

Batteries

Battery

Pack

Open

–

–

+

OR

+

Users Manual

7-6

Figure 7-2. Replacing the Batteries

rita0535.eps

User Maintenance

Supplied

Spare Fuse

Fuse

Supplied

Spare Fuse

Self Test

7

rita0674.eps

Figure 7-3. Replacing the 440 mA Fuse

7-7

867B/863

Users Manual

If Your GMM Does Not Work

NOTE

If the display remains blank after pressing

W

, contrast may be off the scale. Restore
contrast to mid-scale with the following
shortcut: set the selector to SET UP and
avoid touching any key until the display
reappears (about 15 seconds). Press
to store this setting, then turn the selector to
the desired function.

Examine the case for physical damage. If damage is
detected, contact a Fluke Service Center. Check and
replace (as needed) the battery, fuses, and test
leads. Review this manual to verify correct operation.

5

If the GMM still does not work, pack it securely and
forward it, postage paid, to the nearest service
center. Include a description of the problem. Fluke
assumes no responsibility for damage in transit.

A GMM under warranty will be repaired or replaced
(at Fluke’s option) and returned at no charge. See
the registration card for warranty terms. If the
warranty has lapsed, the GMM test tool will be
repaired and returned for a fixed fee. Contact the
nearest service center for information and prices.

If “Uncal” appears in the Upper Status Line, the
GMM is no longer calibrated; contact a Fluke Service
Center.

To locate an authorized service center, visit us on
the World Wide Web: www.fluke.com or call using
any of the phone numbers listed below:

USA and Canada:

1-800-44-FLUKE (1-800-443-5853)
Europe: [phone]
Japan: [phone]
Singapore: +65­Anywhere in the world: [phone]

-276-6196

*

7-8

General Specifications

100

90
80
70
60
50
40
30
20
10

0

-20 0 20 40 60 80 100 120 140
Temperature (deg F)

Temperature (deg C)

%RH

-4

-20

32

0

30 40 50 60

= Normal Operation (0˚C — 50˚C)

= Storage (-20˚C — 60˚C)

Chapter 8

Specifications

Display:

Temperature Operating:

Temperature Coefficient:

(0°C to 18°C and 28°C to 59°C)

Relative Humidity:
Altitude Operating/Non-operating:

meters)/ 40,000 ft. (12,200 meters)

Input Impedance:

LCD - Dot Matrix, 240 X 200 pixels

Fluke 867B:
Fluke 863:

Transmissive, Backlit

Reflective

0°C to 50°C (See Chart)

Storage:
Charging:

-20°C to 60°C (Batteries Removed)
0 to 45°C

(0.1 X % Accuracy) per °C

0% to 90% non-condensing

10 M

Ω

6,562 ft. (2,000

f34.eps

8-1

867B/863

Users Manual

Shock and Vibration: per MIL-T-28800, class 3,
sinusoidal, non-operating

Dimensions: 5.4 x 9.7 x 2.7 in. (137 x 246 x 68 mm)
Weight: 3 lbs (1.35 kg)
Battery Operating Time (backlight off)

Alkaline: 6 hours typical
NiCd: 10 hours typical

Battery Recharge Time: 16 hours minimum from full

discharge

Drip Proof Case: per IEC 529; IP 52, Drip Proof

Safety: Designed to meet IEC 1010-1 Category III,

UL3111, CSA-C22.2. 1010-1-92, CE and TUV
requirements

Certification:

Electromagnetic Interference

P

* +

%

RF Emissions EN-50081-1 Commercial Limits

VFG 243-1991
FCC Part 15 Class B,

RF Susceptibility: EN 50082-1 Industrial Limits

Power:

Fluke 867B Fluke 863

Battery Eliminator/Charger Yes Optional Eliminator only

NiCd Battery Pack Yes

Alkaline Batteries 6 AA Cells Optional Customer Supplied Yes
Battery Life: NiCad

Alkaline

≥8 hrs (supplied)

≥4 hrs (optional)

Optional BP7217 Battery Pack
Optional BC7210 Ext. Charger

≥10 hrs (optional)

≥6 hrs (supplied)

8-2

Specifications

General Specifications

8

Specifications:

The following specifications apply within 1 year of calibration when operating

in a temperature range of 18°C (64°F) to 28°C (82°F).

AC Volts (True RMS, AC-Coupled) [±(percent of reading + counts)]

Range

20-50 Hz 50-100 Hz 1 kHz-30 kHz 30 kHz-100 kHz 100kHz-200kHz 200 kHz-300 kHz

300.00
mV

3.0000V 1.5% + 10

30.000V 1.5% + 10

300.00V 1.5% + 10

1000.0V 1.5% + 10

Crest Factor:

Measurement Range:

1.5% + 10

0.19 dB

0.19 dB

0.19 dB

0.19 dB

0.19 dB

300 mV - 300V ranges ≥3:1, 1000V range ≥3:1 decreasing to ≥1.41:1 as input voltage increases to

1000V (peak voltage not to exceed 1414V).

0.5% + 10

0.10 dB

0.5% + 10

0.10 dB

0.5% + 10

0.10 dB

0.5% + 10

0.10 dB

1.5% + 10

0.19 dB

300 mV range from 10% to 100% of range.
3V - 1000V ranges from 5% to 100% of range.
For frequencies > 100 kHz 30% to 100% of range (all ranges).

0.5% + 10

0.10 dB

0.5% + 10

0.10 dB

0.5% + 10

0.10 dB

0.5% + 10

0.10 dB
NA NA NA NA

Frequency

4% + 200

1.39 dB

4% + 200

1.39 dB

4% + 200

1.39 dB

4% + 200

1.39 dB

8% + 200

1.68 dB

8% + 200

1.68 dB

8% + 200

1.68 dB

8% + 200

1.68 dB

10%+ 200

1.82 dB

10%+ 200

1.82 dB

10%+ 200

1.82 dB

10%+ 200

1.82 dB

8-3