MO

NARCH INSTRUMENT

15 Colum

bia Drive

Am

herst, NH

03031-2334 US

APhone: (603) 883-3390Fax: (603) 886-3300E

-mail: support@

monarchinstrum

ent.comW

ebsite: ww

w.m

onarchinstrument.com

Instruction Manual

Monarch 122

True RM

S Datalogging M

ultimeter

© M

onarch Instrument 2002 all rights reserved

1071-8011-310

Safeguards and Precautions

1.R

ead and follow all instructions in this m

anual carefully,and retain this m

anual for future reference.

2.D

o not use this instrument in any m

anner inconsistent with

these operating instructions or under any conditions thatexceed the environm

ental specifications stated.

3.Ensure that the instrum

ent and test leads are in goodcondition w

ith no visible signs of damage before use.

4.Ensure the test leads are installed in the proper connectorsfor the m

easurement to be m

ade.

5.E

nsure the Function Selector sw

itch is in the properposition for the m

easurement to be m

ade.

6.D

o not, under any circumstances, exceed the m

aximum

ratings of this instrument.

7.D

o not exceed the rated voltage between any input jack

and ground.

8.D

o not measure resistance or continuity in a circuit or test

diodes while pow

er is applied to that circuit.

9.D

ischarge all capacitors in a circuit before measuring

capacitance.

10.Do not connect the test leads to a voltage source w

henthe test leads are connected to the µA

/mA

or 10A input jacks.

11.Exercise extrem

e caution when w

orking with voltages

above 60Vdc or 30Vac. Such voltages pose a shock hazard.

12.Keep fingers behind the finger guards on the test leads

when m

aking measurem

ents.

13.To avoid false readings, replace the battery imm

ediatelyw

hen the low battery indication appears.

14.With the exception of replacing the battery or fuses, this

instrument is not user serviceable. For technical

assistance, contact the sales organization from w

hich youpurchased the product or M

onarch Instrument directly.

LIMIT

ED

WA

RR

AN

TY

SELLER w

arrants hardware products to be free from

any defect in materials or w

orkmanship

for a period of one (1) year from date of shipm

ent to BU

YE

R. S

ELLE

R’s entire liability and

BU

YE

R’s sole and exclusive rem

edy resulting from any defect in w

orkmanship or m

aterialin the hardw

are product covered by this limited w

arranty shall be limited to and fully

discharged by the SE

LLER

’s option of replacement or repair of such item

without charge.

The limited w

arranty provided in this clause is in lieu of all other warranties, expressed or

implied, arising by law

or otherwise. ALL IM

PLIED W

ARR

ANTIES O

F MER

CH

ANTABILITY

AN

D FITN

ES

S FO

R A PAR

TICU

LAR

PU

RP

OS

E A

RE

EX

CLU

DE

D. This lim

ited warranty

shall not be modified except by an arrangem

ent signed by both parties specificallyreferencing this clause.

SE

LLER

warrants that any softw

are supplied will operate in accordance w

ith thedocum

entation or manual supplied therew

ith in all material respects w

hen used in strictcom

pliance with such docum

entation or manual. N

otwithstanding the foregoing, B

UY

ER

acknowledges that, since softw

are is complex and therefore m

ay have defects, BU

YE

R’s

sole and exclusive remedy for any such defects or breach of this w

arranty shall be torequire S

ELLE

R, w

ithin a reasonable period of time, to provide all reasonable program

ming

services to correct programm

ing errors in the software. E

xcept as provided above SE

LLER

MAKES AN

D BU

YER R

ECEIVES FR

OM

SELLER N

O EXPR

ESS OR

IMPLIED

WAR

RAN

TIESO

F AN

Y KIN

D W

ITH R

ES

PE

CT TO

ALL O

R A

NY P

OR

TION

OF S

OFTW

AR

E A

ND

BU

YE

RH

EREBY AG

REES AN

D AC

KNO

WLED

GES TH

AT IT ACC

EPTS THE SO

FTWAR

E IN ‘A

S IS

’C

ON

DITIO

N. S

ELLE

R H

ER

EB

Y E

XP

RE

SS

LY E

XC

LUD

ES

AN

Y IM

PLIE

D W

ARR

ANTIES

OF M

ERC

HAN

TABILITY OR

FITNESS FO

R A PAR

TICU

LAR PU

RPO

SE WITH

RESPEC

T TOTH

E S

OFTW

AR

E. B

UY

ER

agrees that any specific right or remedy granted to B

UY

ER

hereunder with respect to any breach or default by S

ELLE

R shall be in lieu of all other

rights and remedies otherw

ise available to BU

YE

R at law

or in equity as the result of suchbreach or default, regardless of w

hether based on contract, tort, strict liability, or othertheory of liability.

IN N

O EVEN

T SHALL SELLER

BE LIABLE FOR

ANY SPEC

IAL, IND

IREC

T, INC

IDEN

TAL,C

ON

SE

QU

EN

TIAL, O

R P

UN

ITIVE

LOS

SE

S O

R D

AM

AG

ES

(INC

LUD

ING

, BU

T NO

TLIM

ITED

TO, LO

SS

ES

OR

DA

MA

GE

S FO

R A

NY LO

ST P

RO

FITS O

R LO

ST D

ATA) A

S TH

ER

ESULT O

F ANY BR

EACH

OR

DEFAU

LT BY SELLER W

ITH R

ESPECT TO

THE H

ARD

WAR

EO

R S

OFTW

AR

E, E

VE

N IF S

ELLE

R H

AS

BE

EN

AD

VIS

ED

OR

MA

DE

AWAR

E OF TH

EPO

SSIBILITY OF AN

Y SUC

H LO

SSES OR

DAM

AGES AN

D R

EGAR

DLESS O

F WH

ETH

ER

THE C

LAIM IS BASED

ON

CO

NTR

ACT, TO

RT, STR

ICT LIABILITY, O

R O

THER

THEO

RY O

FLIABILITY.

This limited w

arranty does not extend or apply to consumables (including, but not lim

itedto, lam

ps and batteries, if applicable) or equipment, instrum

ents or accessories which are

warranted separately by the original m

anufacturer of these items.

M

OD

EL

122 T

RU

E R

MS

DA

TA

LO

GG

ING

MU

LT

IME

TE

R

Ta

ble

of C

on

ten

ts

Se

ctio

n

Pa

ge

1.0

In

troductio

n.................................................................................................................1

2.0

S

pecific

atio

ns

............................................................................................................1

3.0

S

ym

bol D

efin

itions a

nd F

eatu

re L

ocatio

ns

........................................3

4.0

C

on

trol F

un

ctio

ns

...................................................................................................4

4.1

F

un

ctio

n S

ele

cto

r Ro

tary

Sw

itch

................................................................................4

4.2

R

an

ge

Bu

tton

............................................................................................................... 4

4.3

M

AX

/MIN

Bu

tton

...........................................................................................................4

4.4

D

ata

Ho

ld F

un

ctio

n...................................................................................................... 4

4.5

P

eak H

old

Fu

nc

tion

.....................................................................................................4

4.6

R

ela

tive

Op

era

tion

....................................................................................................... 5

4.7

V

olta

ge o

r Cu

rren

t to F

req

ue

nc

y F

un

ctio

n................................................................5

4.8

B

acklig

ht B

utto

n.......................................................................................................... 5

4.9

S

eco

nd

Fu

nctio

n B

utto

n.............................................................................................5

4.1

0 A

uto

Po

we

r Off............................................................................................................. 5

4.1

1 2

0A

Meas

urin

g C

on

necto

r..........................................................................................5

4.1

2 µ

A/m

A M

ea

su

ring

Co

nn

ecto

r...................................................................................... 5

4.1

3 C

OM

Mea

su

ring

Co

nn

ecto

r.........................................................................................5

4.1

4 V

, Hz, , R

PM

, , , T

EM

P M

ea

su

ring

Co

nn

ec

tor

............................................5

4.1

5 D

igita

l Ou

tpu

t...............................................................................................................5

5.0

O

pera

ting In

stru

ctio

ns

........................................................................................6

5.1

A

C V

olta

ge M

ea

su

rem

en

ts..........................................................................................6

5.2

D

C V

olta

ge M

ea

su

rem

en

ts..........................................................................................6

5.3

A

C/D

C C

urre

nt M

easu

rem

en

ts...................................................................................6

5.4

R

esis

tan

ce M

ea

su

rem

en

ts..........................................................................................7

5.5

C

on

tinu

ity M

ea

su

rem

en

ts...........................................................................................7

5.6

D

iod

e T

es

ts...................................................................................................................7

5.7

F

req

uen

cy a

nd

RP

M M

easu

rem

en

ts..........................................................................8

5.8

T

em

pera

ture

Measu

rem

en

ts....................................................................................... 8

5.9

C

ap

acita

nc

e M

easu

rem

en

ts........................................................................................8

6.0

B

atte

ry a

nd F

use R

epla

cem

ent

...................................................................9

6.1

O

pe

nin

g th

e In

stru

me

nt C

ase

.....................................................................................9

6.2

B

atte

ry R

ep

lace

men

t...................................................................................................9

6.3

F

use R

ep

lac

em

en

t.......................................................................................................9

6.4

C

losin

g th

e In

stru

men

t Cas

e......................................................................................9

7.0

S

etu

p T

estL

ink (M

ultim

ete

r) – R

S232 In

terfa

ce S

oftw

are

......9

8.0

R

unnin

g T

estL

ink

..................................................................................................10

8.1

O

pe

n T

estL

ink

........................................................................................................... 10

8.2

R

eal T

ime T

ab

ula

r an

d R

eal T

ime

Gra

ph

................................................................10

8.3

D

ata

log

ger

................................................................................................................. 10

DE

CLA

RA

TIO

N O

F CO

NFO

RM

ITY

Monarch Instrum

entD

ivision of Monarch International Inc.

15 Colum

bia Drive, Am

herst NH

03031 USA

declares that the product:

to which this declaration relates is in conform

ity with the follow

ing standards:

and therefore conforms in accordance w

ith 89/336/EEC-EM

C D

irective. Thetesting of this product w

as performed by G

esTek EMC

Lab. in July of 2000.(R

ef. No. 0007018E).

Nam

e:True R

MS M

ultimeter

Model:

Monarch 122

EMC

:EN

55022/1998, CISPR

22, Class B

EN50082-1/1997 / EN

61000-4 Series

19th July 2000

Importer (A

mherst, N

H)

Alan W

oolfson, VP E

ngineering (Authorized S

ignature)

M

OD

EL

122 T

RU

E R

MS

DA

TA

LO

GG

ING

MU

LT

IME

TE

R

1

1.0

In

troductio

n:

Th

is in

stru

me

nt is

a tru

e R

MS

au

tora

ng

ing

dig

ital m

ultim

ete

r ca

pa

ble

of m

ea

su

ring

AC

vo

ltag

e

an

d c

urre

nt, D

C v

olta

ge

an

d c

urre

nt, re

sis

tan

ce

, co

ntin

uity

, freq

ue

ncy, R

PM

, tem

pe

ratu

re a

nd

ca

pa

cita

nce

. It is a

lso

eq

uip

pe

d w

ith a

dio

de

testin

g fe

atu

re. It p

rovid

es a

full 3

2,0

00

reco

rd

da

talo

gg

ing

ca

pa

bility

. Th

e in

stru

me

nt c

om

plie

s w

ith IE

C 1

01

0-1

10

00

V C

AT

III.

2.0

S

pe

cific

atio

ns:

AC

Vo

ltag

e (A

uto

ran

gin

g):

Accu

racy R

ang

e R

esolu

tion

45H

z~500Hz

500Hz~1K

Hz

Inp

ut

Imp

edan

ce O

verload

Pro

tection

400mV

0.1m

V

100M

1200V peak

4V

1mV

0.5%

+5 1%

+5 10M

1200V peak

40V

10mV

0.5%

+5 1%

+5 10M

1200V

peak

400V

100mV

0.5%

+5 1%

+5 10M

1200V

peak

750V

1V

0.8%+5

1.2%+5

10M

1200V peak

AC

Cu

rren

t (uA

an

d m

A - A

uto

ran

gin

g):

Accu

racy R

ang

e R

esolu

tion

45H

z~500Hz

500Hz~1K

Hz

Bu

rden

V

oltag

e O

verload

Pro

tection

400uA

0.1uA

1.3%+

5 1.6%

+5

<0.25Vrm

s 0.5A

/ 600V Fast B

low Fuse

4000uA

1uA

1.3%+

5 1.6%

+5

<1Vrm

s 0.5A

/ 600V Fast B

low Fuse

40mA

10uA

1.3%

+5

1.6%+

5 <0.25V

rms

0.5A / 600V

Fast Blow

Fuse

400mA

100uA

1.3%

+5

1.6%+

5 <1.5V

rms

0.5A / 600V

Fast Blow

Fuse

20A

10mA

1.5%

+5

1.8%+

5 <1V

rms

15A / 600V

Fast Blow

Fuse

DC

Vo

ltag

e (A

uto

ran

gin

g):

Ran

ge

Reso

lutio

n

Accu

racy In

pu

t Imp

edan

ce O

verload

Pro

tection

400mV

0.1m

V

0.3%+2

100 M

1200V

peak

4V

1mV

0.3%

+2 10M

1200V

peak 40V

10m

V

0.3%+2

10M

1200V peak

400V

100mV

0.3%

+2 10M

1200V

peak 1000V

1V

0.5%

+2 10M

1200V

peak

DC

Cu

rren

t (uA

an

d m

A - A

uto

ran

gin

g):

Ran

ge

Reso

lutio

n

Accu

racy B

urd

en V

oltag

e O

verload

Pro

tection

400uA

0.1uA

0.8%+2

<0.25V

0.5A / 600V

Fast Blow

Fuse

4000uA

1uA

0.8%+2

<1V

0.5A / 600V

Fast Blow

Fuse 40m

A

10uA

0.8%+2

<0.25V

0.5A / 600V

Fast Blow

Fuse 400m

A

100uA

0.8%+2

<1.5V

0.5A / 600V

Fast Blow

Fuse 20A

10m

A

1%+2

<1V

15A / 600V

Fast Blow

Fuse

Resis

tan

ce (A

uto

ran

gin

g):

Ran

ge

Reso

lutio

n

Accu

racy T

est Vo

ltage

Overlo

ad P

rotectio

n

400

0.1

0.6%+2

<1.5VD

C

600Vrm

s

4K

1

0.6%

+2 <1.5V

DC

600V

rms

40K

10

0.6%

+2 <1.5V

DC

600V

rms

400K

100

0.6%

+2 <1.5V

DC

600V

rms

4M

1K

0.6%+2

<1.5VD

C

600Vrm

s

40M

10K

1%+3

<1.5VD

C

600Vrm

s

Co

ntin

uity

Beep

er:

Ran

ge

Active R

ang

e T

est Vo

ltage

Overlo

ad p

rotectio

n

U

nder 40

<1.5V

600Vrm

s

M

OD

EL

122 T

RU

E R

MS

DA

TA

LO

GG

ING

MU

LT

IME

TE

R

1

0

Insta

ll TestL

ink:

1. C

lose

all o

the

r ap

plic

atio

ns b

efo

re in

sta

lling

Te

stL

ink s

oftw

are

. 2

. Inse

rt se

tup

dis

ke

tte 1

in flo

pp

y d

isk d

rive

. 3

. Ch

oo

se

the

Sta

rt bu

tton

on

the

Ta

skb

ar a

nd

se

lect R

un

. 4

. Typ

e a

:\se

tup

an

d c

ho

ose

OK

to c

op

y S

E1

20

.exe

(exe

cu

tab

le file

) an

d H

elp

file to

yo

ur

ha

rd d

isk (d

efa

ult is

c:\p

rog

ram

files\T

estL

ink\S

E1

20

).

8.0

R

unnin

g T

estL

ink:

8.1

O

pe

n T

estL

ink

Se

lect T

estL

ink fro

m S

tart m

en

u o

f Win

do

ws. Y

ou

r dis

pla

y s

ho

uld

ap

pe

ar a

s b

elo

w.

Me

nu

an

d T

oo

l Ba

r

R

ea

l Tim

e D

ata

Sam

plin

g

Dig

ital D

isp

lay W

ind

ow

Re

al T

ime G

raph

MA

X/M

IN S

tatu

s

Re

al T

ime T

abu

lar

A

na

log In

dic

ato

r

8.2

R

eal T

ime T

ab

ula

r an

d R

eal T

ime

Gra

ph

Se

lect

Ru

n fro

m th

e m

en

u o

r p

ress

fro

m th

e to

ol

ba

r to

b

eg

in re

al

time

d

ata

co

llectio

n fro

m th

e m

ultim

ete

r.

To

ch

an

ge

the

da

ta in

terv

al, e

dit th

e s

am

plin

g ra

te fro

m th

e b

ox o

n th

e rig

ht h

an

d s

ide

of

too

l ba

r (se

e fig

ure

ab

ove

). 8.3

D

ata

log

ger

Se

lect D

ata

Lo

gg

er fro

m th

e m

en

u to

loa

d re

co

rde

d d

ata

from

the

mu

ltime

ter. A

pro

gre

ss

ba

r w

ill sh

ow

h

ow

m

an

y

byte

s

sh

ou

ld

be

lo

ade

d

an

d

ho

w

ma

ny

byte

s

ha

ve

b

ee

n

rece

ive

d. W

he

n d

ata

is lo

ad

ed

su

cce

ssfu

lly, th

ree

ne

w w

ind

ow

s a

pp

ea

r as b

elo

w.

Da

ta S

ets

Win

do

w

G

rap

h W

indo

w

T

ab

ula

r Win

do

w

Da

ta

Se

ts

Win

do

w

–

Dis

pla

ys

ho

w

ma

ny

da

ta

se

ts

we

re

loa

de

d

an

d

the

d

eta

il

info

rma

tion

for e

ach

da

ta s

et (s

tart d

ate

, sta

rt time

, reco

rdin

g ra

te a

nd

da

ta le

ng

th). C

lick

on

an

y d

ata

se

t to c

ho

ose

the

se

t for g

rap

h a

nd

tab

ula

r win

do

w.

Fo

r oth

er o

pera

ting

instru

ctio

ns, p

lease re

fer to

the o

nlin

e h

elp

wh

ile e

xec

utin

g

TestL

ink.

M

OD

EL

122 T

RU

E R

MS

DA

TA

LO

GG

ING

MU

LT

IME

TE

R

2

Dio

de T

es

ter:

Ran

ge

Reso

lutio

n

Accu

racy T

est Cu

rrent

Test V

oltag

e O

verload

pro

tection

1m

V

1% +2

<1mA

<3.5V

600V

rms

Fre

qu

en

cy (A

uto

ran

gin

g):

Ran

ge

Reso

lutio

n

Accu

racy S

ensitivity

Overlo

ad P

rotectio

n

4 KH

z 1H

z 0.05%

+1 <1V

rms

600Vrm

s

40KH

z 10H

z 0.05%

+1 <1V

rms

600Vrm

s

400KH

z 100H

z 0.05%

+1 <1V

rms

600Vrm

s

4MH

z 1K

Hz

0.05%+1

<3Vrm

s 600V

rms

40MH

Z 10K

Hz

0.05%+1

<10Vrm

s 600V

rms

RP

M (A

uto

ran

gin

g):

Ran

ge

Reso

lutio

n

Accu

racy S

ensitivity

Overlo

ad P

rotectio

n

40K R

PM

0.01K

RP

M

0.05%+1

<1Vrm

s 600V

rms

400K R

PM

0.1K

RP

M

0.05%+1

<1Vrm

s 600V

rms

4M R

PM

1K

RP

M

0.05%+1

<1Vrm

s 600V

rms

40M R

PM

10K

RP

M

0.05%+1

<3Vrm

s 600V

rms

400M R

PM

100K

RP

M

0.05%+1

<10Vrm

s 600V

rms

Tem

pera

ture

(°C/°F

)

Ran

ge

Reso

lutio

n

Accu

racy O

verload

pro

tection

°C

1° -50 to 0°C

: 1%+

4 0 to 1000°C

: 1%+

3 600V

rms

°F

1° -58 to 32°F

: 1%+

8 32 to 1832°F

: 1%+

6 600V

rms

Cap

acita

nc

e (A

uto

ran

gin

g)

Ran

ge

Reso

lutio

n

Accu

racy O

verload

pro

tection

4nF 1P

F 1.9%

+20 600V

rms

40nF 10P

F 1.5%

+10 600V

rms

400nF 100P

F 1.5%

+10 600V

rms

4uF 1nF

1.5%+10

600Vrm

s 40uF

10nF 1.9%

+10 600V

rms

400uF 100nF

1.9%+10

600Vrm

s 4m

F 1uF

1.9%+10

600Vrm

s 40m

F 10uF

3%+10

600Vrm

s

Ac

cu

rac

y s

pecific

atio

n:

± ([…

% o

f re

ad

ing

] +

[…

n

um

be

r o

f le

ast

sig

nific

an

t d

igits

]) a

t 1

8°C

to 2

8°C

(64

°F to

82

°F) a

t less th

an

80

% R

H

T

rue

RM

S a

ccu

racy fo

r AC

V a

nd

AC

A a

re s

pe

cifie

d fro

m 5

% to

1

00

% o

f ran

ge

. Ad

d 1

% o

f rea

din

g fo

r cre

st fa

cto

r be

twe

en

1.4

a

nd

3 a

t full s

ca

le, o

r less th

an

6 a

t ha

lf sca

le

Ele

ctro

mag

netic

co

mp

atib

ility:

V

ac a

nd

Aa

c o

nly

: R

F fie

ld =

3V

/m

T

ota

l accu

rac

y:

Sp

ecifie

d a

ccu

racy +

2%

of ra

ng

e

Dig

ital d

isp

lay:

40

00

co

un

ts

S

am

plin

g ra

te:

Tw

ice

pe

r se

co

nd

A

na

log

dis

pla

y:

41

se

gm

en

ts

S

am

plin

g ra

te:

20

time

s p

er s

eco

nd

O

verra

ng

e in

dic

atio

n:

Dis

pla

ys ‘O

L’ w

he

n v

alu

e e

xce

ed

s ra

ng

e s

ele

cte

d

Data

log

gin

g c

ap

ab

ility:

32

,00

0 re

co

rds

Dig

ital O

utp

ut:

Bi-d

irectio

na

l RS

23

2. C

ab

le a

nd

so

ftwa

re in

clu

de

d.

Po

we

r req

uire

me

nt:

9 V

olt b

atte

ry, N

ED

A 1

60

4 o

r JIS

00

6P

or IE

C 6

F2

2

Batte

ry life

: 1

00

ho

urs

typ

ica

l. Lo

w b

atte

ry in

dic

atio

n.

Sa

fety

: 1

00

0V

CA

T III, R

eg

ula

tion

EN

61

01

0: P

art 1

:19

93

D

imen

sio

ns:

Mete

r only

: 19

8×

86

×3

8m

m (7

.8×

3.4

×1

.5 in

)

With

ho

lste

r: 20

9×

94

×4

8m

m (8

.2×

3.7

×1

.9 in

) W

eig

ht:

Mete

r only

: Appro

x. 4

30

g (1

5.2

oz)

W

ith h

ols

ter: A

pp

rox. 6

00

g (2

1.3

oz)

M

OD

EL

122 T

RU

E R

MS

DA

TA

LO

GG

ING

MU

LT

IME

TE

R

9

6.0

B

atte

ry a

nd F

use R

epla

cem

ent:

WA

RN

ING

To

pre

ve

nt e

lec

trica

l ha

za

rd o

r sh

oc

k, tu

rn m

ultim

ete

r off a

nd

dis

co

nn

ec

t tes

t lea

ds

be

fore

rem

ovin

g b

ac

k c

ove

r.

6.1

O

pe

nin

g th

e In

stru

me

nt C

ase

Wh

en

the

low

ba

ttery

ind

ica

tor

sh

ow

s in

the

dis

pla

y o

r wh

en

a

fuse

blo

ws d

ue

to a

n o

ve

rloa

d

co

nd

ition

, th

e

ca

se

m

ust

be

o

pe

ne

d to

re

pla

ce

th

e b

atte

ry

or fu

se

(s).

Se

t th

e

Fu

nctio

n

Se

lecto

r sw

itch

to

th

e

OF

F

po

sitio

n.

Tu

rn th

e u

nit o

ve

r an

d re

mo

ve

th

e fiv

e s

cre

ws fro

m th

e b

ack

as s

ho

wn

in F

igu

re 1

. T

urn

th

e

un

it fa

ce

u

p

an

d

ca

refu

lly

se

pa

rate

th

e

ca

se

h

alv

es a

s s

ho

wn

in F

igu

re 2

.

6.2

B

atte

ry R

ep

lace

men

t T

his

instru

me

nt u

se

s a

sin

gle

9V

, NE

DA

16

04

or IE

C6

F2

2 o

r JIS

00

6P

ba

ttery

. Wh

en

in

sta

lling

a

n

ew

b

atte

ry,

be

ca

refu

l to

ro

ute

th

e b

atte

ry le

ad

s th

rou

gh

th

e slo

t in

th

e

ba

ttery

en

clo

su

re. F

ailu

re to

do

so

co

uld

resu

lt in d

am

ag

e to

the

lea

ds u

po

n re

pla

ce

me

nt

of th

e to

p h

alf o

f the

instru

me

nt c

ase

. 6.3

F

use R

ep

lac

em

en

t

WA

RN

ING

To

avo

id d

am

ag

e to

the

me

ter o

r po

ten

tial e

lec

trical h

azard

or s

ho

ck

, rep

lac

e fu

se

s w

ith e

xac

t rep

lac

em

en

ts.

Do

no

t us

e h

igh

er ra

ted

fus

es in

eith

er lo

ca

tion

.

Re

mo

ve

an

d re

pla

ce

the

de

fectiv

e fu

se

with

an

exa

ct re

pla

ce

me

nt.

Fu

se

ratin

gs a

re a

s fo

llow

s:

Fu

se 1

: F

0.5

A/6

00

V 1

0

× 3

8m

m F

ast B

low

Fu

se 2

:F

15

A/6

00

V

10

×

38

mm

Fa

st B

low

6.4

C

losin

g th

e In

stru

men

t Cas

e

En

su

re th

e F

un

ctio

n S

ele

cto

r sw

itch

ha

s n

ot b

ee

n ro

tate

d fro

m th

e p

ositio

n w

he

n it w

as

rem

ove

d. C

he

ck to

be

ce

rtain

tha

t the

ba

ttery

lea

ds a

re s

afe

ly ro

ute

d th

rou

gh

the

slo

t p

rovid

ed

fo

r th

is

pu

rpo

se

. R

ep

lace

th

e

top

h

alf

of

the

in

stru

me

nt

ca

se

, tu

rn

the

in

stru

me

nt o

ve

r, an

d re

pla

ce

the

five

scre

ws in

the

ba

ck.

No

te:

Do

no

t ove

r tigh

ten

scre

ws. E

xce

ssiv

e tig

hte

nin

g c

ou

ld s

trip th

e th

rea

ds in

the

p

lastic

case

.

7.0

S

etu

p T

estL

ink (M

ultim

ete

r) – R

S232 In

terfa

ce S

oftw

are

:

Th

e T

estL

ink p

ackag

e c

on

tain

s:

1. T

wo

3.5

” dis

ke

ttes

2. C

usto

m d

esig

ne

d R

S2

32

ca

ble

for T

estL

ink

Sys

tem

Re

qu

irem

en

ts:

Win

do

ws 9

5, W

ind

ow

s 9

8 o

r Win

do

ws N

T 4

.0

Min

imu

m H

ard

ware

Req

uire

d:

48

6-1

00

MH

z P

C, 1

6 M

B R

AM

At le

ast 5

MB

ha

rd d

isk s

pa

ce

ava

ilab

le to

insta

ll TestL

ink p

rog

ram

Re

co

mm

en

de

d d

isp

lay re

so

lutio

n is

80

0x6

00

.

Fig

ure

2

Fig

ure

1

Scre

ws

Fu

se

1

0.5

A fu

se

Ba

ttery

Fu

se

2

15

A fu

se

M

OD

EL

122 T

RU

E R

MS

DA

TA

LO

GG

ING

MU

LT

IME

TE

R

3

Op

era

ting

co

nd

ition

s:

Opera

ting T

em

pera

ture

and H

um

idity

: 0°C

- 40

°C (3

2°F

- 104°F

)

Be

low

80

% R

H N

on

-co

nd

en

sin

g

Sto

rage T

em

pera

ture

and H

um

idity

: -1

0°C

- 60°C

(14

°F - 1

40°F

)

Be

low

70

% R

H N

on

-co

nd

en

sin

g

Insta

llatio

n c

ate

go

ry III

Po

llutio

n D

eg

ree

2

Indoor u

se o

nly

Altitu

de

up

to 2

00

0 m

ete

rs (6

50

0 fe

et)

Ac

ce

ss

orie

s:

Te

st

Le

ad

s,

Ba

ttery

, H

ols

ter,

Te

mp

era

ture

C

on

ve

rter,

Typ

e

K

Wire

T

em

pe

ratu

re P

rob

e, R

S2

32

Ca

ble

, So

ftwa

re, In

stru

ctio

n M

an

ua

l

3.0

S

ym

bo

l Defin

ition

s a

nd

Bu

tton

Lo

ca

tion

s:

1)

LCD

Display

10) F

unction Select D

ial 2)

Hold B

utton 11)

‘µA

/mA

’ Terminal

3) M

AX

/MIN

Button

12) ‘A

mp’ T

erminal

4) R

ange Button

13) ‘C

OM

’ Term

inal 5)

Backlight B

utton 14)

‘Volts, O

hms, F

requency, RP

M, C

apacitance, 6)

Peak H

old Button

T

emperature, D

iode Test’ T

erminal

7) R

elative Button

15) R

S232 Interface C

onnector 8)

Record B

utton 16)

Holster

9) S

econd Function B

utton 17)

Tilt S

tand

M

OD

EL

122 T

RU

E R

MS

DA

TA

LO

GG

ING

MU

LT

IME

TE

R

8

5.7

F

req

uen

cy a

nd

RP

M M

easu

rem

en

ts

1.

Co

nn

ect th

e re

d te

st le

ad

to th

e ‘H

z’ ja

ck a

nd

the

bla

ck te

st

lea

d to

the

‘CO

M’ ja

ck.

2.

Se

t the

Fu

nctio

n S

ele

cto

r sw

itch

to th

e H

z R

PM

fun

ctio

n.

Fo

r RP

M m

ea

su

rem

en

ts, p

ress th

e b

lue

bu

tton

to s

ele

ct th

e

RP

M fu

nctio

n.

3.

Co

nn

ect

the

te

st

lea

ds

in

pa

ralle

l w

ith

the

circ

uit

be

ing

m

ea

su

red

. 4

. R

ea

d th

e F

req

ue

ncy o

r RP

M o

n th

e in

stru

me

nt d

isp

lay.

5.8

T

em

pera

ture

Measu

rem

en

ts

1.

Plu

g th

e te

mp

era

ture

co

nve

rter m

od

ule

into

the

‘T

EM

P’ a

nd

‘C

OM

’ ja

cks,

takin

g

ca

re

to

ob

se

rve

th

e

pro

pe

r p

ola

rities.

Plu

g

a

Typ

e

K

the

rmo

co

up

le

into

th

e

co

nve

rter,

ag

ain

e

nsu

ring

pro

pe

r po

larity

. 2

. S

et th

e F

un

ctio

n S

ele

cto

r sw

itch

to th

e °C

°F fu

nctio

n.

3.

Pre

ss th

e b

lue

bu

tton

, if ne

ce

ssa

ry, to

se

lect °C

or °F

. 4

. L

oca

te th

e th

erm

oco

up

le p

rob

e in

th

e e

nviro

nm

en

t to

b

e

me

asu

red

a

nd

a

llow

su

fficie

nt

time

fo

r th

e

pro

be

te

mp

era

ture

to s

tab

ilize

. 5

. R

ea

d th

e T

em

pe

ratu

re o

n th

e in

stru

me

nt d

isp

lay.

5.9

C

ap

acita

nc

e M

easu

rem

en

ts

WA

RN

ING

To

a

vo

id

da

ma

ge

to

th

e

me

ter,

dis

co

nn

ec

t c

ircu

it p

ow

er

an

d

dis

ch

arg

e

all

ca

pa

cito

rs

be

fore

m

ea

su

ring

ca

pa

cita

nc

e.

Us

e

the

D

C

vo

ltag

e

fun

ctio

n

to

co

nfirm

tha

t all c

ap

ac

itors

are

fully

dis

ch

arg

ed

.

1.

Co

nn

ect th

e re

d te

st le

ad

to th

e ‘ ’ ja

ck a

nd

the

bla

ck te

st

lea

d to

the

‘CO

M’ ja

ck.

2.

Se

t the

Fu

nctio

n S

ele

cto

r sw

itch

to th

e fu

nctio

n.

3.

Co

nn

ect th

e te

st le

ad

s to

the

lead

s o

f the

ca

pa

cito

r be

ing

te

ste

d, o

bse

rvin

g p

rop

er p

ola

rity o

n p

ola

rize

d c

ap

acito

rs.

4.

Re

ad

the

Ca

pa

cita

nce

on

the

instru

me

nt d

isp

lay.

No

tes

: 1

. Th

e b

ar g

rap

h is

dis

ab

led

in th

e C

ap

acita

nce

me

asu

ring

mo

de

. Ho

we

ve

r, in

the

4

mF

a

nd

4

0m

F ra

ng

es,

the

b

arg

rap

h in

dic

ate

s th

e tim

e re

qu

ired

to

a

cco

mp

lish

this

me

asu

rem

en

t. 2

. To

o

bta

in

an

a

ccu

rate

re

ad

ing

, th

e

ca

pa

cito

r u

nd

er

test

mu

st

be

fu

lly

dis

ch

arg

ed

. T

his

in

stru

me

nt

will

au

tom

atic

ally

d

isch

arg

e th

e ca

pa

cito

r, if

ne

ce

ssa

ry, b

ut re

qu

ires c

on

sid

era

ble

time

to d

o s

o. B

eca

use

of th

is tim

e

facto

r, it is p

refe

rab

le to

dis

ch

arg

e th

e c

ap

acito

r by e

xte

rna

l me

an

s. If th

e

instru

me

nt is

dis

ch

arg

ing

a c

ap

acito

r prio

r to m

ea

su

rem

en

t, dis

c will a

pp

ea

r o

n th

e d

isp

lay.

M

OD

EL

122 T

RU

E R

MS

DA

TA

LO

GG

ING

MU

LT

IME

TE

R

4

M

an

ua

l ran

ge

ind

icatio

n

Ma

xim

um

ind

ica

tion

R

ela

tive

ind

ica

tion

Re

vo

lutio

ns p

er m

inu

te

A

uto

ran

ge

ind

ica

tion

Min

imu

m in

dic

atio

n

D

ata

ho

ld in

dic

atio

n

Da

talo

ggin

g in

dic

atio

n

L

ow

ba

ttery

ind

ica

tion

Pe

ak m

ax/m

in in

dic

atio

n

R

S-2

32

ind

ica

tion

Dio

de

ind

ica

tion

A

C s

ou

rce

Co

ntin

uity

with

be

epe

r

D

C s

ou

rce

Tem

pe

ratu

re in

dic

atio

n

N

ega

tive

po

larity

ind

ica

tion

Ca

pa

cita

nce

ind

ica

tion

A

uto

po

we

r off in

dic

atio

n

Vo

ltage

/cu

rren

t ind

ica

tion

D

igita

l va

lue

ind

ica

tion

Fre

qu

en

cy in

dic

atio

n

A

na

log b

ar in

dic

atio

n

Re

sis

tan

ce in

dic

atio

n

4.0

C

on

trol F

un

ctio

ns:

4.1

F

un

ctio

n S

ele

cto

r Ro

tary

Sw

itch

T

he

ro

tary

sw

itch

tu

rns

po

we

r o

n

to

the

in

stru

me

nt

an

d

se

lects

th

e

fun

ctio

n

to

be

m

ea

su

red

. Th

e p

rima

ry fu

nctio

ns a

va

ilab

le a

re p

rinte

d in

red

an

d w

hite

on

the

instru

me

nt

sca

le.

Alte

rna

te

fun

ctio

ns,

accesse

d

in

co

nju

nctio

n

with

th

e

blu

e

Se

co

nd

F

un

ctio

n

Bu

tton

, are

prin

ted

in b

lue

. 4.2

R

an

ge

Bu

tton

T

he

instru

me

nt p

ow

ers

on

in th

e A

uto

Ra

ng

e m

od

e, a

s in

dic

ate

d b

y th

e ‘A

UT

O’ in

dic

ato

r in

the

dis

pla

y. T

o s

ele

ct a

Ma

nu

al R

an

ge

, pre

ss th

e

RA

NG

E b

utto

n w

hic

h w

ill lock th

e

me

ter

in

its’

pre

se

nt

ran

ge

a

nd

b

ring

o

n

the

M

AN

U’

ind

ica

tor

in

the

dis

pla

y.

Ea

ch

su

bse

qu

en

t pre

ss o

f the

RA

NG

E b

utto

n c

ircu

late

s th

e in

stru

me

nt to

the

ne

xt h

igh

er ra

ng

e

or w

rap

s fro

m th

e h

igh

est b

ack to

the

low

est ra

ng

e. T

o e

xit th

e M

an

ua

l Ra

ng

e m

od

e a

nd

re

turn

to A

uto

Ra

ng

e, p

ress a

nd

ho

ld th

e R

AN

GE

bu

tton

for o

ne

se

co

nd

. 4

.3

MA

X/M

IN B

utto

n

Th

e M

axim

um

an

d M

inim

um

va

lue

s a

re th

e h

igh

est a

nd

low

est v

alu

es d

isp

laye

d d

urin

g

the

time

the

instru

me

nt is

in th

e M

AX

/MIN

mo

de

. To

dis

pla

y M

axim

um

an

d M

inim

um

va

lue

s, firs

t en

su

re th

e v

alu

e w

ill no

t exce

ed

the

me

asu

rem

en

t ran

ge

se

lecte

d. P

ress th

e

MA

X/M

IN b

utto

n o

nce

to d

ispla

y th

e M

axim

um

va

lue

, as in

dic

ate

d b

y th

e ‘M

AX

’ ind

ica

tor in

th

e d

isp

lay. P

ress it a

ga

in to

dis

pla

y th

e ‘ M

IN’ v

alu

e a

nd

ind

ica

tor. P

ress it o

nce

more

to

dis

pla

y th

e c

urre

nt v

alu

e. In

this

se

lectio

n, th

e

‘MA

X/M

IN’ in

dic

ato

r will fla

sh

. To

exit th

e

MA

X/M

IN m

od

e, p

ress a

nd

ho

ld th

e M

AX

/MIN

bu

tton

for o

ne

se

co

nd

. 4.4

D

ata

Ho

ld F

un

ctio

n

To

ho

ld th

e c

urre

nt m

ea

su

red

va

lue

, pre

ss th

e H

OL

D b

utto

n. P

ress th

e H

OL

D b

utto

n a

ga

in

to re

lea

se

the

he

ld d

ata

an

d re

turn

to c

on

tinu

ou

s re

ad

ing

. 4.5

P

eak H

old

Fu

nc

tion

T

his

instru

me

nt is

eq

uip

pe

d w

ith a

1m

s P

ea

k c

aptu

re c

ap

ab

ility in

the

AC

A, A

CV

, DC

A

an

d D

CV

ran

ge

s. T

he

Pe

ak v

alu

es a

re th

e h

igh

est a

nd

low

est tra

nsie

nt v

alu

es c

ap

ture

d

by th

e in

stru

me

nt, re

ga

rdle

ss o

f wh

eth

er o

r no

t the

y m

igh

t be

dis

pla

ye

d in

the

no

rma

l m

ea

su

ring

m

od

e.

To

d

isp

lay P

ea

k va

lue

s,

first

en

su

re th

e va

lue

w

ill n

ot

exce

ed

th

e

me

asu

rem

en

t ra

ng

e

se

lecte

d.

Th

e

instru

me

nt

mu

st

the

n

co

nd

uct

an

in

tern

al

se

lf-ca

libra

tion

, wh

ich

ca

lcu

late

s a

nd s

tore

s th

e o

ffse

t vo

ltag

e in

pre

pa

ratio

n fo

r ca

ptu

ring

a

hig

h s

pe

ed

Pe

ak v

alu

e.

To

invo

ke

the

ca

libra

tion

op

era

tion

, pre

ss a

nd

ho

ld th

e P

EA

K b

utto

n fo

r appro

xim

ate

ly 2

se

co

nd

s u

ntil

‘CA

L’ a

pp

ea

rs in

the

dis

pla

y. T

he

instru

me

nt is

no

w c

alib

rate

d to

pro

pe

rly

ca

ptu

re P

ea

k v

alu

es.

Pre

ss th

e P

EA

K b

utto

n a

ga

in to

dis

pla

y th

e M

axim

um

Pe

ak, a

s in

dic

ate

d b

y th

e ‘P

MA

X’

ind

ica

tor in

the

d

isp

lay. P

ress it o

nce

mo

re to

d

isp

lay th

e ‘P

MIN

’ va

lue

an

d in

dic

ato

r. P

ress a

nd

ho

ld th

e P

EA

K b

utto

n fo

r 2 s

eco

nd

s to

exit th

e P

ea

k m

od

e.

No

te:

Th

e in

stru

me

nt m

ust b

e c

alib

rate

d in

acco

rda

nce

with

the

ab

ove

pro

ce

du

re

wh

en

eve

r the

fun

ctio

n ra

ng

e is

ch

an

ge

d.

M

OD

EL

122 T

RU

E R

MS

DA

TA

LO

GG

ING

MU

LT

IME

TE

R

7

5.4

R

esis

tan

ce M

ea

su

rem

en

ts

WA

RN

ING

Be

fore

m

ak

ing

a

ny

in-c

ircu

it m

eas

ure

me

nts

, re

mo

ve

p

ow

er

from

th

e

circ

uit

be

ing

tes

ted

an

d d

isch

arg

e a

ll ca

pa

cito

rs in

the c

ircu

it.

1.

Co

nn

ect th

e re

d te

st le

ad

to th

e ‘

’ jack a

nd

the

bla

ck te

st

lea

d to

the

‘CO

M’ ja

ck.

2.

Se

t the

Fu

nctio

n S

ele

cto

r sw

itch

to th

e

fun

ctio

n.

3.

Co

nn

ect

the

te

st

lea

ds

in

pa

ralle

l w

ith

the

circ

uit

be

ing

te

ste

d a

nd

rea

d th

e m

ea

su

red

resis

tan

ce

on

the

instru

me

nt

dis

pla

y.

5.5

C

on

tinu

ity M

ea

su

rem

en

ts

WA

RN

ING

Be

fore

mak

ing

an

y in

-circ

uit m

ea

su

rem

en

ts, re

mo

ve

po

we

r from

the

circ

uit b

ein

g te

ste

d a

nd

dis

ch

arg

e a

ll c

ap

acito

rs in

the c

ircu

it.

1.

Co

nn

ect th

e re

d te

st le

ad

to th

e ‘

’ jack a

nd

the

bla

ck te

st le

ad

to th

e ‘C

OM

’ jack.

2.

Se

t the

Fu

nctio

n S

ele

cto

r sw

itch

to th

e

fun

ctio

n.

3.

Pre

ss th

e b

lue

Se

co

nd

Fu

nctio

n b

utto

n o

nce

to s

ele

ct th

e

fun

ctio

n.

4.

Co

nn

ect th

e te

st le

ad

s in

pa

ralle

l with

the

circ

uit b

ein

g te

ste

d.

5.

Wh

en

the

imp

ed

an

ce

be

twe

en

the

test le

ad

s is

less th

an

40

a c

on

tinu

ou

s b

ee

pe

r w

ill activ

ate

.

Op

en

Circ

uit

Sh

ort C

ircu

it

5.6

D

iod

e T

es

ts

WA

RN

ING

Be

fore

m

ak

ing

a

ny in

-circ

uit

me

as

ure

men

ts,

rem

ove

p

ow

er

from

th

e c

ircu

it b

ein

g te

ste

d a

nd

dis

ch

arg

e a

ll ca

pa

cito

rs in

the c

ircu

it.

1.

Co

nn

ect th

e re

d te

st le

ad

to th

e ‘ ’ ja

ck a

nd

the

bla

ck

test le

ad

to th

e ‘C

OM

’ jack.

2.

Se

t th

e

Fu

nctio

n

Se

lecto

r sw

itch

to

th

e

fun

ctio

n.

3.

Pre

ss th

e b

lue

Se

co

nd

Fu

nctio

n b

utto

n tw

ice

to s

ele

ct th

e

fun

ctio

n.

4.

Co

nn

ect th

e re

d te

st le

ad

to th

e a

no

de

sid

e a

nd

the

bla

ck

test le

ad

to th

e c

ath

od

e s

ide

of th

e d

iod

e b

ein

g te

ste

d.

5.

Re

ad

the

Fo

rwa

rd V

olta

ge

(Vf ) o

n th

e in

stru

me

nt d

isp

lay.

No

te:

If the

po

larity

of th

e te

st le

ad

s is

reve

rse

d, th

e d

isp

lay w

ill rea

d ‘O

L’. T

his

ca

n b

e

use

d to

de

term

ine

the

an

od

e a

nd

ca

tho

de

term

ina

ls o

f a d

iod

e.

M

OD

EL

122 T

RU

E R

MS

DA

TA

LO

GG

ING

MU

LT

IME

TE

R

5

4.6

R

ela

tive

Op

era

tion

P

ressin

g th

e

RE

L bu

tton

ze

roe

s th

e d

isp

lay a

nd

inte

rna

lly s

tore

s th

e p

rese

nt re

ad

ing

as

a

refe

ren

ce

fo

r su

bse

qu

en

t m

ea

su

rem

en

ts.

Th

e

dis

pla

y

no

w

sh

ow

s

the

d

iffere

nce

b

etw

ee

n th

e s

tore

d v

alu

e a

nd

the

ne

w re

ad

ing

. P

ress th

e

RE

L bu

tton

ag

ain

to h

old

the

Re

lativ

e re

ad

ing

. Th

e ‘

RE

L’ s

ym

bo

l in th

e d

isp

lay

will fla

sh

in th

e R

ela

tive

Ho

ld m

od

e.

Pre

ss a

nd

ho

ld th

e

RE

L fo

r 1 s

eco

nd

to e

xit th

e R

ela

tive

mo

de

. 4.7

R

eco

rd B

utto

n

Pre

ss th

e

RE

C bu

tton

to

sta

rt a

nd

sto

p re

co

rdin

g.

Th

e

RE

C a

nd

R

S2

32

ind

ica

tors

b

oth

a

pp

ea

r du

ring

reco

rdin

g. T

he

instru

me

nt c

an

reco

rd a

ny n

um

be

r of d

ata

se

ts u

p to

the

3

2,0

00

reco

rd c

ap

acity

of its

’ me

mo

ry.

To

cle

ar th

e m

em

ory

, turn

the

instru

me

nt o

ff, the

n p

ress a

nd

ho

ld th

e R

EC b

utto

n w

hile

tu

rnin

g th

e in

stru

me

nt

ba

ck o

n.

Th

e

RE

C in

dic

ato

r w

ill fla

sh

u

ntil

the

m

em

ory

is

fu

lly

cle

are

d.

4.8

B

acklig

ht B

utto

n

Th

e ro

un

d y

ello

w b

utto

n w

ith a

‘Su

n’ lo

go

turn

s th

e d

isp

lay b

acklig

ht O

N a

nd

OF

F. T

he

b

acklig

ht a

uto

ma

tica

lly s

hu

ts o

ff afte

r 30

se

co

nd

s to

co

nse

rve

ba

ttery

po

we

r. 4.9

S

eco

nd

Fu

nctio

n B

utto

n

Th

e s

olid

blu

e b

utto

n s

ele

cts

the

se

co

nd

fun

ctio

ns p

rinte

d in

blu

e o

n th

e in

stru

me

nt s

ca

le

aro

un

d th

e ro

tary

fun

ctio

n s

ele

cto

r. T

he

se

co

nd

ary

fun

ctio

ns a

va

ilab

le w

ith th

is b

utto

n a

re:

In th

e R

esis

tan

ce

po

sitio

n, th

e firs

t pre

ss o

f the

blu

e b

utto

n s

ele

cts

the

Co

ntin

uity

with

b

ee

pe

r fun

ctio

n. T

he

se

co

nd

pu

sh

of th

is b

utto

n s

ele

cts

the

Dio

de

Te

st fu

nctio

n.

In th

e F

req

ue

ncy p

ositio

n, th

e b

lue

bu

tton

se

lects

the

RP

M m

od

e.

In a

ny o

f the

Cu

rren

t me

asu

ring

mo

de

s, th

e b

lue

bu

tton

tog

gle

s b

etw

ee

n A

C a

nd

DC

.

In th

e T

em

pe

ratu

re fu

nctio

n, th

e b

lue

bu

tton

tog

gle

s b

etw

ee

n °C

an

d °F

. 4

.10

Au

to P

ow

er O

ff B

y d

efa

ult, th

e in

stru

me

nt p

ow

ers

on

in th

e ‘A

uto

Po

we

r Off’ m

od

e a

nd

will a

uto

ma

tica

lly

sh

ut o

ff 30

min

ute

s a

fter th

e la

st k

ey o

pe

ratio

n o

r RS

23

2 c

om

mu

nic

atio

n.

To

dis

ab

le th

is fe

atu

re, p

ress a

nd

ho

ld th

e R

AN

GE b

utto

n a

nd

the

n p

ow

er o

n th

e m

ete

r. T

he

will n

ot b

e d

isp

laye

d, in

dic

atin

g th

at ‘A

uto

Po

we

r Off’ is

dis

ab

led

. 4.1

1 2

0A

Meas

urin

g C

on

necto

r T

his

instru

me

nt is

ca

pa

ble

of m

ea

su

ring

up

to 1

0 a

mp

s c

on

tinu

ou

sly

, or u

p to

20

am

ps

for n

o m

ore

tha

n 3

0 s

eco

nd

s. C

on

ne

ct th

e p

ositiv

e (re

d) te

st le

ad

to th

is c

on

ne

cto

r. 4.1

2 µ

A/m

A M

ea

su

ring

Co

nn

ecto

r C

urre

nt

me

asu

rem

en

ts

up

to

4

00

mA

a

re

be

st

me

asu

red

via

th

is

co

nn

ecto

r. T

his

co

nn

ectio

n is

inte

rna

lly fu

se

d a

t 40

0m

A fo

r pro

tectio

n o

f the

instru

me

nt.

4.1

3 C

OM

Me

as

urin

g C

on

ne

cto

r T

his

co

nn

ecto

r is th

e n

eg

ativ

e (b

lack) le

ad

co

nn

ectio

n fo

r all m

ea

su

rem

en

ts.

4.1

4 V

, Hz, , R

PM

, , , T

EM

P M

easu

ring

Co

nn

ecto

r F

or

all

vo

ltag

e,

freq

ue

ncy,

ca

pa

cita

nce

, R

PM

, d

iod

e

test,

resis

tan

ce

o

r te

mp

era

ture

m

ea

su

rem

en

ts, c

on

ne

ct th

e p

ositiv

e (re

d) te

st le

ad

to th

is c

on

ne

cto

r. 4.1

5 D

igita

l Ou

tpu

t T

he

RS

23

2 D

igita

l Ou

tpu

t is a

96

00

bp

s N

81

se

rial in

terfa

ce

. R

X is

a 5

V n

orm

ally

hig

h in

pu

t po

rt. T

X is

a 5

V n

orm

ally

hig

h o

utp

ut p

ort.

M

OD

EL

122 T

RU

E R

MS

DA

TA

LO

GG

ING

MU

LT

IME

TE

R

6

5.0

O

pera

ting In

stru

ctio

ns:

5.1

A

C V

olta

ge M

ea

su

rem

en

ts

WA

RN

ING

Ma

xim

um

In

pu

t V

olta

ge

is

75

0V

AC

. T

o

avo

id

ele

ctric

al

sh

oc

k

ha

za

rd

an

d/o

r d

am

ag

e to

this

ins

trum

en

t, do

no

t atte

mp

t to m

ak

e a

ny vo

ltag

e m

ea

su

rem

en

t th

at m

ay e

xc

ee

d th

is lim

it.

1.

Co

nn

ect th

e re

d te

st le

ad

to th

e ‘V

’ jack a

nd

the

bla

ck te

st

lea

d to

the

‘CO

M’ ja

ck.

2.

Se

t the

Fu

nctio

n S

ele

cto

r sw

itch

to th

e V

~ ra

nge.

3.

Co

nn

ect

the

te

st

lea

ds

in

pa

ralle

l w

ith

the

circ

uit

be

ing

m

ea

su

red

. 4

. R

ea

d th

e m

ea

su

red

vo

ltag

e o

n th

e in

stru

me

nt d

isp

lay.

5.2

D

C V

olta

ge M

ea

su

rem

en

ts

WA

RN

ING

Ma

xim

um

In

pu

t V

olta

ge

is

10

00

VD

C.

To

a

vo

id e

lec

trica

l s

ho

ck

h

aza

rd a

nd

/or

da

ma

ge

to

th

is in

stru

me

nt,

do

n

ot

atte

mp

t to

m

ak

e a

ny vo

ltag

e m

ea

su

rem

en

t th

at m

ay e

xc

ee

d th

is lim

it.

1.

Co

nn

ect th

e re

d te

st le

ad

to th

e ‘V

’ jack a

nd

the

bla

ck te

st

lea

d to

the

‘CO

M’ ja

ck.

2.

Se

t the

Fu

nctio

n S

ele

cto

r sw

itch

to th

e V

ran

ge.

3.

Co

nn

ect

the

te

st

lea

ds

in

pa

ralle

l w

ith

the

circ

uit

be

ing

m

ea

su

red

. 4

. R

ea

d th

e m

ea

su

red

vo

ltag

e o

n th

e in

stru

me

nt d

isp

lay.

5.3

A

C/D

C C

urre

nt M

easu

rem

en

ts

WA

RN

ING

To

avo

id in

jury

, do

no

t atte

mp

t a c

urre

nt m

ea

su

rem

en

t if the

op

en

circ

uit v

olta

ge

ex

cee

ds

the

rate

d v

olta

ge

of

this

ins

trum

en

t.

1.

If the

cu

rren

t to b

e m

ea

su

red

is u

nkn

ow

n, c

on

ne

ct th

e re

d le

ad

to th

e ‘A

’ jack. If it is

kn

ow

n o

r ha

s b

ee

n d

ete

rmin

ed

tha

t the

cu

rren

t is 4

00

mA

or le

ss, c

on

ne

ct th

e re

d

lea

d to

the

‘µA

/mA

’ jack. C

on

ne

ct th

e b

lack le

ad

to th

e ‘C

OM

’ jack.

2.

Se

t th

e F

un

ctio

n S

ele

cto

r sw

itch

to

th

e cu

rren

t ra

ng

e co

rresp

on

din

g to

th

e ja

ck

be

ing

use

d a

nd

pre

ss th

e b

lue

bu

tton

to s

ele

ct A

C o

r DC

. 3

. R

em

ove

p

ow

er

from

th

e circ

uit

to b

e m

ea

su

red

a

nd

co

nn

ect

the

in

stru

me

nt

in

se

ries w

ith th

is c

ircu

it. Co

nn

ect th

e b

lack le

ad

to th

e n

eg

ativ

e (-) s

ide

an

d th

e re

d

lea

d to

the

po

sitiv

e (+

) sid

e b

ein

g m

ea

su

red

. 4

. A

pp

ly p

ow

er to

the

circ

uit a

nd

rea

d th

e m

ea

su

red

cu

rren

t on

the

instru

me

nt d

isp

lay.

µA

/mA

Me

as

ure

me

nt

Am

p M

ea

su

rem

en

t