Hioki 7016 Instruction Manual

Instruction Manual

7016

SIGNAL SOURCE

May 2012 Revised edition 8 7016A981-08 12-05H

Contents

Contents

Introduction .................................................................. 1

Verifying Package Contents .........................................1

Safety Information ........................................................3

Operating Precautions................................................. 6

1Overview 9

1.1 Product Overview ...............................................9

1.2 Features ........................................................... 10

1.3 Names of Parts .................................................11

1.4 Display (LCD) ...................................................14

1.5 Sourcing and Measurement Procedures .......... 18

2 Preparations 19

2.1 Connecting the AC Adapter .............................. 19

2.2 Charging the Internal Batteries .........................20

2.3 Connecting the Test Leads .............................. 21

2.3.1 Connections ......................................................22

2.4 Turning Power On / Off ....................................23

2.5 Function Selection ............................................24

2.5.1 Source Function Settings ..................................24

2.5.2 Measurement Function Settings ........................28

i

3 Using Source Functions 31

3.1 Constant-Voltage Source (DCCV) .................... 32

3.2 Constant-Current Source (DCCC) .................... 35

3.3 Pulse Source (PULSE) .....................................37

3.4 Using Memory Function (SCAN and RAMP) .... 39

3.4.1 Using the SCAN Function ..................................40

3.4.2 Using the RAMP Function .................................45

ii

Contents

4 Using Measurement Functions 51

4.1 Measuring Voltage ........................................... 52

4.2 Measuring Current ............................................54

4.3 Measuring Frequency .......................................56

4.4 Measuring Resistance ......................................57

4.4.1 Continuity Test ...................................................58

4.5 Diode Test ........................................................59

4.6 Measuring Temperature ...................................60

4.7 Source and Measure Simultaneously ...............61

4.8 Special Measurement Functions ...................... 62

4.8.1 Recording Function ...........................................63

4.8.2 Data Hold / Refresh Hold Function ....................66

4.8.3 Relative (relative display) Function ....................67

4.8.4 1-ms Peak Hold Function ..................................68

4.8.5 Dual Display Function ........................................70

5 Functions 73

5.1 Auto Power Off Function ..................................73

5.2 Backlight Function ............................................ 74

5.3 RS-232C Communication Functions ................ 75

5.4 Power-On Options ............................................76

6 Applications 79

6.1 Transducer Calibration .....................................79

6.2 Loop Test .........................................................81

7 Specifications 85

7.1 Product Specifications ......................................85

7.2 Accuracy ...........................................................88

7.2.1 Source Range and Accuracy .............................88

7.2.2 Measurement Range and Accuracy ..................89

Contents

8 Maintenance and Service 95

8.1 Replacing the Batteries .................................... 96

8.2 Replacing the Fuses .........................................98

8.3 Before returning for repair ................................99

8.4 Discarding the Instrument .............................. 100

8.5 Cleaning ......................................................... 100

iii

iv

Contents

10

Introduction

7016 SIGNAL SOURCE

L9207-10 TEST LEAD (one each red and

black, for input terminal)..............................1

Test leads (one each red and black, for output ter-

minal)................................................................... 1

Test lead (Yellow, with 15-V zener diode)............ 1

AC Adapter (SA-141A0F-1 1)

(with power cord)............1

Thank you for purchasing the HIOKI Model 7016 SIGNAL
SOURCE. To obtain maximum performance from the instrument,
please read this manual first, and keep it handy for future refer­ence.

1

Introduction

1

Verifying Package Conten ts

When you receive the instrument, inspect it carefully to ensure that
no damage occurred during shipping. In particular, check the
accessories, panel switches, and connectors. If damage is evident,
or if it fails to operate according to the specifications, contact your
dealer or Hioki representative.

Instrument

Accessories

2
3
4
5
6
7
8
9

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2

Carrying Case ............1

Battery pack (Ni-MH battery, installed) .... 8

Instruction manual

Operation guide

Connection band ............................ 1

Verifying Package Contents

The supplied battery pack (Ni-MH battery, installed) is not charged
when shipped from the factory. Charge it using the supplied AC
adapter.

❖ 2.2 "Charging the Internal Batteries" (20 p.)

10

Safety Information

This manual contains information and warnings essential for safe
operation of the instrument and for maintaining it in safe operating
condition. Before using it, be sure to carefully read the following
safety precautions.

3

Safety Information

1

This instrument is designed to comply with IEC 61010 Safety
Standards, and has been thoroughly tested for safety prior to
shipment. However, mishandling during use could result in
injury or death, as well as damage to the instrument. U sing
the instrument in a way not described in this manual may
negate the provided safety features. Be certain that you
understand the instructions and precautions in the manual
before use. We disclaim any responsibility for accidents or
injuries not resulting directly from instrument defects.

Safety Symbols

The following symbols in this manual indicate the relative impor­tance of cautions and warnings.

In the manual, the symbol indicates particu larly impo rtant infor­mation that the user should read before using the instrument.

The symbol printed on the instrument indicate s that the user
should refer to a corresponding topic in the manual (marked with the

symbol) before using the relevant function.

Indicates a grounding termin al.

Indicates a double-insulated device.

Indicates DC (Direct Current).

Indicates AC (Alternating Current).

Indicates that incorrect operation presents an extreme hazard
that could result in serious injury or death to the user.

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3
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9

Indicates that incorrect op eration presents a significan t haz­ard that could result in serious injury or death to the user.

Indicates that incorrect operation presents a possibility of
injury to the user or damage to the instrument.

Indicates advisory items related to performance or correct
operation of the instrument.

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4

Safety Information

Other Symbols

Indicates the reference.

❖

Indicates that descriptive information is provided bellow.

*

Indicates quick references for operation and remedies for trouble­shooting.

Measurement categories

This instrument complies with CAT II safety requirements.
To ensure safe operation of measurement instruments, IEC 61010
establishes safety standards for various electrical environments,
categorized as CAT II to CAT IV, and called measurement catego­ries. These are defined as follows.

CAT II Primary electrical circuits in equipment connected to an AC electrical outlet

CAT III Primary electrical circuits of heavy equipment (fixed installations) connected

CAT IV The circuit from the service drop to th e service entrance , and to the power

Using a measurement instrument in an environment designated
with a higher-numbered category than that for which the instrument
is rated could result in a severe accident, and must be carefully
avoided.
Use of a measurement instrument that is not CAT-rated in CAT II to
CAT IV measurement applications could result in a severe acci­dent, and must be carefully avoided.

by a power cord (portable tools, household appliances, etc.)
CAT II covers directly measuring electrical outlet receptacles.

directly to the distr ibution panel, and f eeders from th e distribution pan el to
outlets.

meter and primary overcurrent protection device (distribution panel).

10

Accuracy

Safety Information

We define measurement tolerances in terms of f.s. (full scale), rdg.
(reading) and dgt. (digit) values, with the following meanings:

f.s.
(maximum display value or
scale length)

rdg.
(reading or displayed value)

dgt. (resolution)

The maximum displ ayab le val ue or s cale length. Thi s
is usually the name of the currently selected range.

The value curre nt ly b ei ng m ea sur ed a nd i nd icat ed on
the measuring instrument.

The smallest displayable unit on a digital measuring
instrument, i.e., the input value that causes the digital
display to show a "1" as the least-signific a nt digit.

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6

Operating Precautions

Operating Precautions

Follow these precautions to ensure safe operation and to obtain
the full benefits of the various functions.

• Befo re connecting the test leads, check the position of the
function selector. Applying voltage when a non-voltage
measuring range is selected ma y cause bodily injury and
damage to the meter. Also, remove the test leads fr om the
device under test before switching the function selector.

• Never apply voltage to the test leads when the Resistance
Measurement (OHM), Current Measurement (DCA, ACA,
ACDCA), Continuity or Diode Test are selected. Doing so
may damage the instrument and result in personal injury.
To avoid electrical accidents, remove power from the circuit
before measuring.

• Use only the supplied AC Adapter (SA-141A0F-11). AC
Adapter input voltage range is 100 to 240 VA C (with ±10%
stability) at 50/60 Hz. To avoid electrical hazards and dam­age to the instrument, do not apply voltage outside of this
range.

• To avoid the possibility of electric shock, always con nect
the green wire from the AC Adapter to ground.

• Do not use an AC Adapter other than the one supplied.
Doing so could caus e da mage to th e m eter or ot her elec tri­cal mishap.

• Do not use the supp lied AC Adapter with another device. It
could damage the device or cause another electrical mis­hap.

• When replacing the batteries, do not mix old and new
batteries, or different types of batteries. Also, be careful to
observe battery polarity during installation. Otherwise,
poor performance or damage from battery leakage could
result.

• Do not allow the instrument to get wet, and do not take
measurements with wet hands. This may cause an electric
shock.

• Do not apply voltage or current exceeding the measure­ment range of each terminal. H ioki can not take responsibil­ity for accidents involving electric shock or insulation
failures that could occur as a result of exceeding the speci­fied range limitations.

Operating Precautions

10

• This instrument is designed for use in doors. It can be op erate d at
temperatures between 0 and 40°C without degrading safety.

• Calibration and repair of this instrument should be performed only
under the supervision of qualified technicians knowledgeable
about the dangers involved.

• If the protective functions of the instrumen t are damaged, either
remove it from service o r mark it clea rly so that ot her s do not use
it inadvertently.

• Do not store or use the instrum ent where it could be ex posed to
direct sunlight, high temperature or humidity, or condensation.
Under such conditions, the instrument may be damaged and insu­lation may deteriorate so that it no longer meets specifications.

• This instrument is not designed to be entirely water- or dust-proof.
Do not use it in an especially dusty environment, nor where it
might be splashed with liquid. This may cause damage.

• For safety reasons, when taking measurements, only use the
L9207-10 provided with the instrument.

• To avoid d ama ge to th e inst ru men t, prot ect it fro m ph ysical shock
when transporting and handling. Be especially careful to avoid
physical shock from dropping.

• To avoid corrosion from battery leakage, remove the batteries
from the instrument if i t is to be s tore d for a long time.

• Because the input and output terminals are isolated from each
other, signal source and DMM functions can operate simulta­neously as two roles of the single instrument.

• Data can be transferred to a PC using the Model 3856-02
COMMUNICATION PACKAGE (U SB).

• Correct source and measurement may be impossible in the
presence of strong magnetic fields, such a s near transformers
and high-current conductors, or in the presence of strong elec­tromagnetic fields such as near radio transmitters.

7

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8
9

Before Use

Before using the instrument the first time, verify that it operates
normally to ensure that the no damage occurred during storage or
shipping. If you find any damage, contact your dealer or Hioki rep­resentative.

11

Before using the instrument, mak e s ure that the insulation
on the test leads is un damag ed and that no bar e c ondu ctors
are improperly exposed. Using the product in such condi­tions could cause an electric shock, so contact your dealer
or Hioki representative for replacements. (Model L9207-10)

8

Operating Precautions

Pre-Operation Inspection

Before using the instrument, verify that the instrument operates
normally to ensure that the no damage.

1.1 Product Overview

10

Overview 1

1.1 Product Overview

Handy multi-f unction calibrator

A programmable voltage/current source that includes a high­performance DMM.

9

1
2
3

Many sourcing functions

In addition to constant voltage and current sourcing, voltage pulses
can also be sourced, suitable for applications such as flow meter
calibration.

Extensive measu ring functions

DMM functions including AC/DC voltage and current, resistance,
frequency, temperature measurement, diode and continuity test
are fully supported.

Supports various maintenance, adjustment and
testing applications

The multi-function high-precision source supports maintenance of
instrumentation systems and plants, calibration of industrial
measuring instruments, and electrical circuit testing.

PC control and data acquisition with an optional
communications package

Using the separately available Model 3856-02 COMMUNICATION
PACKAGE(USB), signal source settings can be made on a PC,
and measured values transferred to a PC.

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10

1.2 Features

1.2 Features

Sources bipolar DC voltage from -15.000 to 15.000 V (@100 μV
finest resolution) and DC current from -25 .000 to 25.000 mA (@1
μA finest resolution), including sink (absorbed current) and source
output.

Voltage pulses at one of 28 frequencies from 0.5 to 48000 Hz can
be generated with settable duty cycle, pulse width and amplitude.

For each function and range, source settings can be stored in
memory for up to 16 steps, which can then be output in sequence
continuously, singly or manually using the Scan sourcing function.

Measures true effective value (rms) AC/DC voltage and current
(with crest factor less than three).

As well as measuring AC/DC voltage and current, the meter also
tests continuity and measures resistance, diodes, frequency and
temperature (using an IEC584-1:1995-compliant type K
thermocouple).

10

1.3 Names of Parts

Display (LCD)

❖ 1.4 "Display (LCD)" (14.p)

Front

Input terminal

❖

2.3 "Connecting the Test Leads"
(21.p)

Output terminal

❖

2.3 "Connecti ng th e Test Leads"
(21.p)

Buttons

❖ (12 p.)

Function
selector

❖ 2.5 "Function

Selection" (24.p)

11

1.3 Names of Parts

1
2
3
4
5
6
7
8
9

11

12

Buttons

SHIFT butt on

MODE, AC/DC button

, REL, TEMP button

, DUAL button

❖ Detail→ "Source Mode Button Functions" (27.p),

"Measurement Mode Button Functions" (29.p)

OUTPUT, Hz button, HOLD, MAX MIN button

, RANGE, AUTO button

1.3 Names of Parts

Important!

• Source-function related button operations are indicated by
yellow labels on the meter.

• The [

SHIFT] button switches between source and

measurement functions.

10

Side

Jack for AC adapter

❖ 2.1 "Connecting the AC

Adapter" (19.p)

Slide switch

❖ 2.2 "Charging the

Internal Batteries" (20.p)

Back

Battery cover

❖ 8.1 "Replacing the

Batteries" (96.p)

Charging lamp

❖ 2.2 "Charging the

Internal Batteries" (20.p)

Connector for RS-232C

❖ 5.3 "RS-232C

Communication Functions"
(75.p)

1.3 Names of Parts

13

1
2
3
4
5
6
7
8
9

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14

Secondary Display

Contents and Units
Indicators for
Secondary Display

Primary Displa y

Contents and Units Indicators
for Primary Display

Source Function Indicators

Source Function Status
and Mode Indicators

Meter status display

Measurement Func tion
Application Indicators

1.4 Display (LCD)

1.4 Display (LCD)

10

Meter status display

0°C

0-20

4-20

Indicates low battery v oltage (below the guaranteed accu racy
voltage - approximately 8 V). It blinks.

Indicates the Auto Power Off function is enabled.

15

1.4 Display (LCD)

1

Primary Display

Shows measured value.

Content s and Units Indicators for Primary Display

DC
AC

ACDC

°C

%

m sec

mA

mV , V

Hz, kHz

M

Ω, kΩ,

Ω

Indicates measurement of DC voltage (DCV) or current (DCA).
Indicates measuremen t of AC voltage (AC V) or cur ren t (A CA ).

Indicates measurement of DC + AC voltage (ACDCV) or current
(ACDCA).

Unit of temperature measurement
Indicates percentage measurement of duty cycle or 0-20 or 4-20

mA.
Unit of pulse width measurement

Indicates negative tr igger slope when mea suring duty cycle or
pulse width.

Indicates positive tri gger slope when measuring duty cycle or
pulse width.

Unit of current measurement
Unit of voltage measurement
Unit of frequency measurement

Unit of resistance measurement

Indicates standard connection is normalized to 0°C.
Indicates displayed v alue is percentage of 0-20 mA measure-

ment current.
Indicates displayed v alue is percentage of 4-20 mA measure-

ment current.

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3
4
5
6
7
8
9

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16

0-20

4-20

1.4 Display (LCD)

Secondary Display

Contents and Units Indicators for Se co ndary Display

DC
AC

ACDC

°C

%

m sec

mA

mV, V

Hz, kHz

Shows either measured or sourced value.

Indicates measurement of DC voltage (DCV) or current (DCA).
Indicates measurement of AC voltage (ACV) or current (ACA).

Indicates measurement of DC + AC voltage (ACDCV) or current
(ACDCA).

Unit of temperature measurement
Indicates percentage measurement of duty c ycle or setting of

pulse duty cycle.
Unit of pulse width measurement and setting

Unit of current measurement and constant current (CC) sourcing
Unit of voltage measur ement and constant voltage (CV) sourc-

ing
Unit of frequency measurement and pulse frequency setting
Indicates displayed val ue is percentage of 0-20 mA measure-

ment current.
Indicates displayed val ue is percentage of 4-20 mA measure-

ment current.

Source Function Indicators

Pulse source function is active.

Constant current (CC) source function is active.

Constant voltage (CV) sour ce function is active.

Pulse source frequency setting

Pulse source duty cycle setting

Pulse sour ce pulse width settin g

Pulse source amplitude setting

1.4 Display (LCD)

10

Source Function Status and Mode Indicators

Indicates no signal is being output.

17

Indicates a signal is being output (sourced or generated).
Indicates the [SHIFT] button is pressed (S ource Function set-

tings enabled).
Indicates ramp generatio n.

Indicates scan generation.

Measurement Function Application Indicators

+

DH

MAX A VG MIN

MAX

AVG

MIN
DH MAX
DH MIN

Diode test is active.

Continuity test is active.

Data Hold and Refresh Hold are enabled.
Recording function is active.
Maximum value is displayed.

Average value is displayed.
Minimum value is displayed .
Maximum value of 1-ms Peak Hold is displayed.
Minimum value of 1-ms Peak Hold is displayed.

Autoranging mode is enab led.

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2
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8

Relative measurement function is enabled.

RS-232C communication function is active.

Indicates the thermocouple is being used.

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18

1.5 Sourcing and Measurement Procedures

1.5 Sourcing and Measurement Pro cedures

Preparations

1.

• Connecting the AC Adapter

• Charging the Internal Batteries

• Connecting the test leads

Tu rni ng Po wer On

2.

Function Settings

3.

• Source Settings

• Measurement Settings

❖ 2.1 (19 p.)
❖ 2.2 (20 p.)
❖ 2.3 (21 p.)

❖ 2.4 (23 p.)

❖ 2.5.1 (24 p.)
❖ 2.5.2 (28 p.)

Sourcing

4.

• Constant Voltage

• Constant Current

•Pulses

•Memory

Measuring

5.

• Voltage

• Current

• Frequency

• Resistance (Continuity)

• Diodes

• Temperature

Tu rni ng Po wer Off

6.

❖ 3.1 (32 p.)
❖ 3.2 (35 p.)
❖ 3.3 (37 p.)
❖ 3.4 (39 p.)

Or

❖ 4.1 (52 p.)
❖ 4.2 (54 p.)
❖ 4.3 (56 p.)
❖ 4.4 (57 p.)
❖ 4.5 (59 p.)
❖ 4.6 (60 p.)

❖ 2.4 (23 p.)

2.1 Connecting the AC Adapter

10

Jack for AC adapter

Preparations 2

2.1 Connecting th e AC Adapter

• Use only the supplied AC adapter (SA-141A0F-11). AC
adapter input voltage range is 100 to 240 VAC (with ±10%
stability) at 50/60 Hz. To avoid electrical hazards and
damage to the instrument, do not apply voltage outside of
this range.

• To avoid the possibility of electric shock, always connect
the green wire of the AC adapter to ground.

• Do not use an AC adapter other than the one supplied.
Doing so could cause damage to the instrument or other
electrical mishap.

• Do not use the supplied AC adapter with another device. It
could damage the device or cause another electrical
mishap.

19

1
2
3
4
5
6

Connection Procedures

1.

2.

Set the slide switch on the meter as follows:

•[CHARGE]: to charge the batteries

•[

M] : to measure only

•[M/S] : to source only or to measure and

Connect the output plug from
the AC adapter to the jack on
the side of meter.

source simultaneously

Slide Switch

3. Verify that the mains voltage matches the inp ut voltage of the

AC adapter, and plug the adapter into an outlet .

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20

Charge lamp

2.2 Charging the Internal Batteries

2.2 Charging the Internal Batteries

Do not attempt to charge any batteries other than the
supplied battery pack (Ni-MH battery). The
instrument could overheat and the batteries could
explode.

While using the supplied battery pack (8 Ni-MH batteries), use the
following procedure to charge the batteries when the battery warn-

ing ( ) indicator appears on the LCD.

Charging Procedure

1.

Turn the function selector to [OFF].

2.

Move the slide switch to [CHARGE].

3. Connect the AC adapter t o th e jac k on t he side of the meter.

4. The charge lamp lights red as ch arging begins.

5. The charge lamp turns gre en when charging is finished.

• The supplied AC adapter operates from 100 to 250 VAC @47
to 63 Hz). The jack on the side of the meter accepts 14 VDC
±10%, center contact positive (+).

• When you use the instrument for the first time or when you
have not used it for a long time, the batteries might not be fully
charged. Please charge and discharge the batteries a few
times repeatedly.

2.3 Connecting the Test Leads

10

L9207-10 TEST LEAD (one each red and black, for Input terminal)

Test leads
(one each red and black, for Output terminal)

Test lead (Yellow, with 15-V zener diode)

For Input Terminals

For Output Terminals

2.3 Connecting th e Test Leads

21

The meter has two pair of terminals, labeled Input and Output. The supplied Model
L9207-10 TEST LEAD with probes (one each red and black) are for connection to
the Input terminals, and the other supplied test leads with clips (one each, red, black
and yellow) are for the Output terminals.

To prevent an electric shock accident, confirm that the white or red por­tion (insulation layer) inside the cable is not exposed. If a color inside
the cable is exposed, do not use the cable.

1
2
3
4
5
6
7
8

Removable sleeves are attached to the metal pins at the ends of the test leads.
The test leads can also be used with the sleeves removed.

Removing and attaching the sleeves

The tips of the metal pins are sharp, so take care not to injure yourself.

Removing the sleeves

Gently hold the bottom of the sleeves and pull the sleeves off.
Safely store the removed sleeves so as not to lose them.

Attaching the sleeves

Insert the metal pins of the test leads into the holes of the sleeves,

all the way in.

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11

and firmly push them

22

Input terminals

L9207-10

(black)

L9207-10

(red)

Output terminals

Test lead

(black)

Test lead

(red or yellow)

2.3 Connecting the Test Leads

2.3.1 Connections

1.

Connect the L9207-1 0 TEST LEAD to the Input
terminals.

Connect the red Model L9207-10 TEST LEAD to
the "+" INPUT terminal, and the black Model L9207­10 TEST LEAD to the "-" INPUT terminal.

2.

Connect the test leads to th e Output terminals

Connect red test lead to the "+" OUTPUT terminal,
and the black test lead to the "-" OUTPUT terminal.

Only make connections when the source
function is OFF.

❖ Using the yellow test lead→ 6.2 "Loop Test" (81 p.)

10

2.4 Turning Power On / Off

The meter is turned on and off by both the slide switch and the
function selector.

Turning Power On

23

2.4 Turning Power On / Off

1

Measure only

Source only,
or

Source and
measure
simultaneously

Turning Power Off

1.Set the slide switch to [M].

2.Set the function selector to the

❖ 2.5 "Function Selection" (24 p.)

1.Set the slide switch to[M/S].

2.Set the function selector to the

❖ 2.5 "Function Selection" (24 p.)

Set the function selector to [OFF].

desired measurement function.

desired source or measurement
function.

2
3
4
5
6
7
8
9

• To prevent battery discharge when the meter is not in use, set
the function selector to [OFF] or set the slide switch to [M] or
[

M/S].

• Although measurement-only operation is possible with the
slide switch set to [
be shortened.

M/S], operating time per battery charge will

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24

: Source functions

2.5 Function Selection

2.5 Function Selection

Select the desired function.

Important!

• The outer yellow labels around the function selector are for
source-related functions.

• The inner reverse-color labels are for measurement-related
functions.

• The [

SHIFT] button switches between source- and measure-

ment-related button functions.

2.5.1 Source Function Settings

There are three types of source functions:

• Constant-voltage (

• Constant-current (CC) source

• Pulse source (

CV) source

PULSE)

The source functions are indicated by yellow labels
tion selector to the function you want to set up.

. Set the func-

10

Setting Procedure

When constant-voltage sourcing (CV) is selected
(The indicator is displayed)

Constant-voltage source

1.5 V range

Constant-voltage RAMP source
15 V range

Constant-voltage source
15 V range

Constant-voltage SCAN source

1.5 V range

Constant-voltage SCAN source
15 V range

Constant-voltage RAMP source

1.5 V range

SCAN source: The indicator is displayed.
RAMP source: The indicator is displayed.

1. Press the [SHIFT] button (so the indicator is displayed).

25

2.5 Function Selection

This enables the source-relate d butto n functi on s.

2. Press the [MODE] button as necessary to select the desired

source mode.

The source mode selection order is as follows.

1
2
3
4
5
6
7
8
9

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26

When constant current sourcing (CC) is selected
(The indicator is displayed)

Constant current source

Constant current SCAN source

Constant current RAMP source

SCAN source: The indicator is displayed.
RAMP source: The indicator is displayed.

When pulse source (PULSE) is selected
(The indicator is displayed)

Pulse source frequency

Pulse source duty cycle

Pulse source amplitude

Pulse source pulse width

Frequency source : The indicator is displayed.
Duty cycle source : The indicator is displayed.
Pulse width source: The indicator is displayed.
Amplitude source : The indicator is displayed.

2.5 Function Selection

❖ Source Mode Details→ Chapter 3 "Using Source Functions" (31 p.)

10

Source Mode Button Functions

OUTPUT button

MODE button  button  button  button button

SHIFT button

[MODE]

, 

, 

[SHIFT]

[OUTPUT]

• Switches the source mode when sourcing constant voltage, current or pulses.

• Holding this button for one second activates the memory source setting mode.

❖ Detail → 3.4 "Using Memory Function (SCAN and RAMP)" (39 p.)

• Select the digit or polarity(±) to be changed.

• Press these buttons with memory source SCAN or RAMP output to select the
source mode.

❖

Detail → 3.4.1 "Using the SCAN Function" (40 p.), 3.4.2 "Using the RAMP Function" (45
p.)

• Increments (decrements) the blinking digit by 1.

• Switches output polarity(±) .

• When pressed ( or ) continuously, the value is decreased (increased)
automatically.

• Press this button to activate the SHIFT mode ( appears).

• While is displayed, all buttons perform their source-related functions.

• Holding this button for one second toggles the LCD backlight on and off (even
when the [SHIFT] button is not pressed, the backlight turns off automatically
after a preset time.

❖ To set the backlight power-on option→ 5.4 "Power-On Options" (76 p.)

• Toggles source output on and off.
source output is inactive.

• Press this button to store settings for later output as SCAN or RAMP memory
source output values (proceeding to another step without pressing this button
invalidates the settings up to this point).

❖ Detailed Descriptions and Operation Procedures→ 3.4 "Using Memory Function

(SCAN and RAMP)" (39 p.)

27

2.5 Function Selection

1
2
3
4
5
6
7
8
9

is displayed when source output is active, and is displayed when

11

28

Vo l tage measu r ement (mV),
Temperature measurement

Current
measurement

Resistance

measurement

Current
measurement

Diode test

2.5 Function Selection

2.5.2 Measurement Function Settings

There are five types of measurement functions.

Voltage measurement (V, mV)
Current measurement
Resistance measurement
Diode test
Temperature measurement

Measurement functions are indicated by dark labels (on wh ite
background). Set the function selector to the function you want to

set up.

❖ 4.1 (52 p.)
❖ 4.2 (54 p.)
❖ 4.4 (57 p.)
❖ 4.5 (59 p.)
❖ 4.6 (60 p.)

10

Measurement Mode Button Functions

SHIFT button

HOLD / MAX MIN button

REL / TEMP button

RANGE / AUTO button

DUAL button

AC/DC button

Hz button

[HOLD/MAX MIN]

[RANGE/ AUTO]

[AC/DC]

[REL/TEMP]

[DUAL]
[SHIFT]

[Hz]

• Selects DC, AC or ACDC.

• When measuring resistance, enables and disables continuity (CONT)
testing.

• When measuring duty cycle (D UTY) or pulse width (WIDTH), holding this
button for one second toggles the trigger slope between rising and
falling edges.

• Holding this button for one second toggles the 1- ms Peak Hold fun ction on
and off.

• Enables and disables the Data Hold function.

• Enables the Refresh Hold function.

❖ 4.8.2 "Data Hold / Refresh Hold Function" (66 p.)

• Toggles through MAX, AVG and MIN.

❖ 4.8.1 "Recording Function" (63 p.)

• Enables and disables relative (relative value display) function.

❖ 4.8.3 "Relative (relative display) Function" (67 p.)

• When mV measurement is selected, holding this button for one second
enables temperature (TEMP) measurement.

• Toggles between auto- and manual ranging.

• Changes ranges when manual ranging is enabled.

• Selects various Dual Display* combinations.

• Toggles the SHIFT mode ( appears when active).

• While is displayed, all buttons perform their source- related functio ns,
so be sure that is not displayed before performing button operations
for measurement functions.

• Holding this button for one second toggles the LCD backlight on and off
(even when the [SHIFT] button is not pressed, the backlight turns off
automatically after a preset time).

❖ 5.4 "Power-On Options" (76 p.)

• Changes the measurement mode (frequency, duty cycle or pulse width)
when using the Dual Display function.

❖ 4.8.5 "Dual Display Function" (70 p.)

29

2.5 Function Selection

1
2
3
4
5
6
7
8
9

11

30

2.5 Function Selection

10

Using Source Functions 3

Please observe the following precautions t o avoid damage to the inst ru­ment:

• Do not connect a device to be measured while the instrument is
turned off.

• Do not turn the instrument off and on or move the function switch
while a test device is connected for measurement.

• Always make sure to turn the source output off before changing
the connections at the OUTPUT terminals or device under test.

• Never connect the instrument to another voltage source when
using it to source voltage, or to another current source when
using it to source current. The instrument or device under test
could be damaged.

• Use the supplied yellow test lead when performing loop testing
of internally powered instruments.

• To use this instrument’s source function, set the slide switch to
the [

M/S] position. Source output is disabled in the other switch

positions.

• Holding the [/] buttons changes the setting continuously
within the settable range.

• In source (output) mode, the occurrence of electrostatic dis­charge at the output terminals can cause output to be inter-

rupted and the standby mode enabled ( appears).

• In source (output) mode, if battery voltage falls below the level
necessary to maintain stable output, output is interrupted and

the standby mode is enabled ( appears).

31

1
2
3
4
5
6
7
8
9

Important!

• The yellow labels around the outer circumference of the
function selector indicate signal source/generation
functions.

• The [

❖ 2.5.1 "Source Function Settings" (24 p.), "Source Mode Button Func-

tions" (27 p.)

SHIFT] button must first be pressed to enable the

source-related button functions. ( is displayed on the

LCD.)

11

32

3.1 Constant-Voltage Source (DCCV)

3.1 Constant-Voltage Source (DCCV)

This mode outputs a constant voltage at the set value regardless of
load.

Procedure

1.

Set the slide switch to the [M/S] po s iti on.

2.

Set the function selector to the

CV] position.

[

Select one position.
When source only, any [
selected.

CV] position can be

3.

Press the [SHIFT] button and confirm that

is displayed on the LCD.

The source-related button functions are now enabled.

33

10

Selecting the Source Mode
(The indicator is displayed)

Constant-voltage source

1.5 V range

Constant-voltage RAMP source
15 V range

Constant-voltage source
15 V range

Constant-voltage SCAN source

1.5 V range

Constant-voltage SCAN source
15 V range

Constant-voltage RAMP source

1.5 V range

SCAN source: The indicator is displayed.
RAMP source: The indicator is displayed.

3.1 Constant-Voltage Source (DCCV)

4. Press the [MODE] button as necessary to select the source

mode on the secondary display.

Pressing the [MODE] button repeat edly cha nge s the sou rce mo de
as shown below.

1
2
3
4
5
6
7
8

5. Press the [] or [] button to select a digit to change.

6. Press the [] or [] button to set a value.

Settable Ranges

[+0.0000 V]
[+00.000 V]

-1.5000 V to 1. 5000 V

-15.000 V to 15 .000 V

9

11

34

3.1 Constant-Voltage Source (DCCV)

Press the [OUTPUT] button to output the

7.

set voltage value. Verify that is dis­played on the LCD.

8. Press the [OUTPUT] button again to dis able output. Verify that

is no longer displayed.

• To change the setting value, repeat Steps 5 and 6.

• If an overload such as a short circuit occurs while sourcing
voltage, output is disabled and the standby state is enabled

( lit), or the meter may be turned off by the internal protec­tion circuitry. If the power is turned off, wait a short time bef ore
turning it back on.

3.2 Constant-Current Source (DCCC)

10

3.2 Constant-Current Source (DCCC)

This mode outputs a constant current at the set value regardless of
load.

Procedure

35

1

1. Set the slide switch to the [M/S] position.

2.

Set the function selector to the
[

CC] position.

Select one position.
When source only, any [
selected.

CC] position can be

3. Press the [SHIFT] button and confirm that is displayed

on the LCD.

4. Press the [MODE] button as necessary to select the source

mode on the secondary display.

Pressing the [MODE] button repeat edly cha nge s the sou rce mo de
as shown (page 36).

2
3
4
5
6
7
8
9

11

36

Selecting the Source Mode
(The indicator is displayed)

Constant current source

Constant current SCAN source

Constant current RAMP source

SCAN source: The indicator is displayed.
RAMP source: The indicator is displayed.

3.2 Constant-Current Source (DCCC)

5. Press the [] or [] button to select a digit to change.

6. Press the [] or [] button to set a value.

Settable range

[+00.000 mA]

7. Press the [OUTPUT] button to output the set current value.

Ve rify that is dis played on the LCD.

8. Press the [OUTPUT] button again to dis able output. Verify that

is no longer displayed.

• To change the setting value, repeat Steps 5 and 6.

• In current source (output) mode, if overloading occurs (such as
from an open-circuit load), output voltage is maintained at the
instrument’s maximum limit.

-25.000 mA to 25.000 mA

10

3.3 Pulse Source (PULSE)

• In addition to flow meter calibration, the pulse source can be
used for checking and calibrating counters, rotation counters,
oscilloscopes, frequency converters and other frequency-input
systems.

• Frequency, duty cycle, pulse width and amplitude can be set.

Procedure

37

3.3 Pulse Source (PULSE)

1
2

1. Set the slide switch to the [M/S] position.

2.

Set the function selector to the
[

PULSE] position.

Select one position.
When source only, any [
can be selected.

PULSE] position

3. Press the [SHIFT] button and confirm that is displayed

on the LCD.

4. Press the [MODE] button to select a parameter for setting .

Pressing the [MODE] butto n re peated ly c hange s the param eter as
shown (page 38).

3
4
5
6
7
8
9

11

38

Selecting the Parameter

(The indicator is displayed)

Pulse source frequency

Pulse source duty cycle

Pulse source amplitude

Pulse source pulse width

Frequency source: The indicator is displayed., Duty cycle source: The indicator is displayed.
Pulse width source: The indicator is displayed., Amplitude source: The indicator is displayed.

3.3 Pulse Source (PULSE)

The values displayed above are the default settings.

5. Press the [] or [] button to set a value.

Settable Ranges

Frequency

Duty cycle

Pulse width

Amplitude

0.5, 1, 2, 5, 10, 15, 20 , 25 , 30, 40, 50, 60, 75, 80, 100,
120, 150, 200, 240, 300, 400, 480, 600, 800, 1200,
1600, 2400, 4800 (Hz)

As there are 256 settable steps, each step is 0.390625%,
which is displayed as 0.39% per step
increments.
Example: If an ini tial value of 5 0.00% is incremen ted by

As there are 256 settable steps, the pulse width per
step is 1/(256 ∗ frequency).

+5V, ±5 V, +12 V, ±12 V

one step, the display shows 50.39%.

6. Press the [OUTPUT] button to output the set pu lse value. Ver-

ify that is disp lay ed on the LCD.

7. Press the [OUTPUT] button again to dis able output. Verify that

is no longer displayed.

If an overload such as a short circuit occurs while sourcing voltage,
output is disabled and the standby state is enabled ( lit), or the

meter may be turned off by the internal protection circuitry. If the
power is turned off, wait a short time before turning it back on.

3.4 Using Memory Function (S CAN and RAMP)

10

division M division m

Start level End level

Number of Number of

Example:
Number of division M: 20 divisions
Number of division m: 10 divisions

End level

3.4 Using Memory Function (SCAN and
RAMP)

39

These two functions are convenient for constant-voltage and
constant-current sourcing.

SCAN
Function

RAMP
Function

* Dual slope: two slopes.
The number of divisions between the start and end levels, and
from the end level to the next start level can be set for each slope.

These functions are described next.

Up to 16 steps of diffe rent source va lues
and time intervals can be set.

A dual slope* can be generated to
simulate a linear waveform. The num ber
of divisions in each slope can be set.

❖ 3.4.1 (40 p.)

❖ 3.4.2 (45 p.)

1
2
3
4
5
6
7
8
9

11

40

Voltage source SCAN±1.5 V

Current source SCAN±25 mA

Selecting the Sourc e Mo de

SCAN±15 V

3.4 Using Memory Function (SCAN and RAMP)

3.4.1 Using the SCAN Function

Procedure

1. Set the slide switch to the [M/S] pos it ion.

2. Set the function selector to the [CV] position to source vo lt age,

or to the [

CC] position to source current.

3. Press the [SHIFT] button and confirm that is displayed

on the LCD.

4. Press the [MODE] button as necessary to select the source

mode on the sec ondary display

Pressing the [MODE] button repea tedly ch ang es the sour ce mode
as shown below.
During SCAN function setup, is display e d.

3.4 Using Memory Function (S CAN and RAMP)

10

SCAN function factory default settings

41

Range SCAN±1.5000 V SCAN±15.000 V SCAN±25.000 mA

Step Output Value Output Value Output Value

1 +1.5000 V +15.000 V +00.000 mA 2 S
2 +1.2000 V +12.000 V +04.000 mA 2 S
3 +0.9000 V +09.000 V +08.000 mA 2 S
4 +0.6000 V +06.000 V +12.000 mA 2 S
5 +0.3000 V +03.000 V +16.000 mA 2 S
6 +0.0000 V +00.000 V +20.000 mA 2 S
7 -0.3000 V -03.000 V +16.000 mA 2 S
8 -0.6000 V -06.000 V +12.000 mA 2 S

9 -0.9000 V -09.000 V +08.000 mA 2 S
10 -1.2000 V -12.000 V +04.000 mA 2 S
11 -1.5000 V -15.000 V +00.000 mA 2 S
12 +0.0000 V +00.000 V +04.000 mA 0 S
13 +0.0000 V +00.000 V +08.000 mA 0 S
14 +0.0000 V +00.000 V +12.000 mA 0 S
15 -1.5000 V -15.000 V +16.000 mA 0 S
16 +0.0000 V +00.000 V +20.000 mA 0 S

Do you want to change the values
from the factory default settings?

❖ "Changing Data Settings" (44 p.)

Time

Interval

1
2
3
4
5
6
7
8
9

11

42

Continuous (Cont)

Cycle (CyCLE)

Step (StEP )

[] []

[] []

[] []

Selecting the SCAN Source Mode

3.4 Using Memory Function (SCAN and RAMP)

5. When finished maki ng SCAN function settings, pres s the []

or [

] button to select the SCAN source mode.

Pressing the [] or [] button changes the secondary display as
follows.

Cont

• Output proceeds sequentially fr om t he first step to the last, then
returns to the first step and repeats continuously.

• However, if the time interval of the last s tep is set to 0 s econ ds ,
it is ignored, and output continues from the first step .

Example: When the factory default settings for Step 12 is 0

CyCLE

StEP

• Output proceeds sequentially fr om t he first step to the last, then
continues output at the settings of the last step.

• However, if the time i nterva l of a step i s set to 0 secon ds, out put
continues according to the settings of the previous step.

Example: When the factory default settings for Step 12 is 0

Pressing the [] or [] button moves to the previ ous or next output
step. The value set for each step is output until the next step is se­lected.

seconds, after ou tput from S tep 11, outp ut continue s
from Step 1.

seconds, output from Step 11 is maintained continu­ously.

3.4 Using Memory Function (S CAN and RAMP)

10

Continuous

(Cont)

Cycle

(CyCLE)

Step

(StEP)

Time interval
(second)

43

1
2
3
4

6. Press the [OUTPUT] button to output the set voltage value.

Verify that is displayed on the LCD.

7. Press the [OUTPUT] button again to disable out put. Verify that

is no longer displayed.

• Continuous (CONT) and Cycle (CyCLE) source modes always
start at Step 1.

• If the time interval of Step 1 is set to 0s, the source out put is
not activated. (Except for STEP source mode)

• When Continuous (
are stopped by the [OUTPUT] button, subsequent source output
resumes at Step 1.

CONT) and Cycle (CyCLE) source modes

5
6
7
8
9

11

44

Step number

Output value

Time interval

Step number Time interval Output value

Setting Display

Each press of button

3.4 Using Memory Function (SCAN and RAMP)

Changing Data Settings

1. With the SCAN function active, hold the [MODE] button for one

second to enter the data setting mode for each source step.

2. Set the time interval and so urce output value for each step.

The secondary display shows the output value, the leftmost
two digits of the primary disp lay show the step number, and
the rightmost two digits show the time interval.

3. Press the [MODE] button to select the step number, time

interval or output value. The param eter digit to be set blinks.

• Press the [] or [] button to increment or decrement the value,
and press the [
put value.

• Time intervals can be set from 0 to 99 seconds.

4. Press the [OUTPUT] button to save your settin gs.

5. To clear all settings, hold the [] button for one second. Time

interval and output values are cleared to zero.

6. Hold the [MODE] button for one second to exit t he step data

setting m o de.

] or [] button to move to another digit of the out-

3.4 Using Memory Function (S CAN and RAMP)

10

Voltage source RAMP±1.5 V Current source RAMP±25 mA

Selecting the Source Mode

RAMP±15 V

3.4.2 Using the RAMP Function

Procedure

45

1

1. Set the slide switch to the [M/S] position.

2. Set the function selector to the [CV] position to source voltage,

or to the [

CC] position to source current.

3. Press the [SHIFT] button and confirm that is displayed

on the LCD.

4. Press the [MODE] button as necessary to select the source

mode on the secondary display.

Pressing the [MODE] button repeat edly cha nge s the sou rce mo de
as shown below.
During RAMP function setup, is displayed.

2
3
4
5
6
7
8
9

11

46

Continuous (Cont)

Cycle (CyCLE)

[

] []

[

] []

Selecting the R AMP Source Mode

3.4 Using Memory Function (SCAN and RAMP)

RAMP function factory default settings

±1.5000 V ±15.000 V ±25.000 mA

Output

value

Start -1.5000 V 015 -15.000 V 015 -25.000 mA 025

End +1.5000 V 015 +15.000 V 015 +25.000 mA 025

Number

of

division

Output

value

Do you want to change the values
from the factory default settings?

Number

of

division

Output

value

❖ "Changing Data Settings" (47 p.)

Number

of

division

5. When finished making source mode settings, press the [] or

] button to select the RAMP source mode.

[

Pressing the [] or [] button changes the secondary display as
follows.

Cont

CyCLE

• After the first slope is output (start to end values), the second
slope is output to return to the start value, forming one repeat­able cycle.

• The interval of the first slope = (end output value - start output
value), divisions.
Example: The factory de fault settings w ith ±1.5000 V range
is (1.5 + 1.5) / 15 steps = 0.2 V.

• The interval of the second slope = (starting output value - end
output value) / divisions.

After the first slop e is output (s tart to end va lues), the s tarting value
of the second slope is output, continuing output according to the
settings.

47

10

Start position Start position

End position

The output value at each interval =
(end output value - start output value) / divisions

S - XXX

No. of divisions
X 0.33s

E - XXX

No. of divisions
X 0.33s

First slope

Second slope

3.4 Using Memory Function (S CAN and RAMP)

6. Press the [OUTPUT] button to output the set voltage value.

Verify that is displayed on the LCD.

The output value changes according to settings every 0.33
seconds.

7. Press the [OUTPUT] button again to disable out put. Verify that

is no longer displayed.

Changing Data Settings

1. With the RAMP function active, hold the [MODE] button for

one second to enter the data setting mode for each source
step.

2. The RAMP function involves dual slope generation*.

Set the number of division s from the start to the end position,
and from the end to the start pos itio n.

Also set the out put values of the start and end positions.

* Dual slope generation: generating two slopes.

1
2
3
4
5
6
7
8
9

11

48

Start position

Output value at start position

Number of division

(1 to 999)

Start position [S] Number of division Output value at st a rt posi ti on

Output value at end position

End position Number of division

(1 to 999)

Each press of [], [] button

Setting Display

When the start position [S] or end posi­tion [

E] is blinking, press the [] or []

button.

End position [E] Number of division Output value at end p o sition

Each press of button

Each press of button

3.4 Using Memory Function (SCAN and RAMP)

3. Set the division number and output value for both the start and

end positions.

Secondary display
Leftmost digit of primary display
Rightmost three digits of primary display

Output value
Start [S] or End [E] positi on
Number of divisions

49

10

3.4 Using Memory Function (S CAN and RAMP)

4. Press the [] or [] button to select the start positio n [S] or

end position [
between the number of divisions and output value. The
parameter digit to be set blinks.

• Press the [] or [] button to increment or decrement the value,
and press the [

• The number of divisions can be set from 1 to 999.

E]. Then press the [MODE] button to switch

] or [] button to move to another digit to set.

1
2

5. Press the [OUTPUT] button to save your settings.

6. Hold the [MODE] button for one secon d to exit the step data

setting mode.

3
4
5
6
7
8
9

11

50

3.4 Using Memory Function (SCAN and RAMP)

10

Using Measurement

51

Functions

Observe the following precautions to avoid electric shock.

• Before connecting the test leads, check the position of the
function selector.

• Also, remove the test leads from the device under test
before switching the function selector.

• Do not attempt to m easure a television’s horizontal output
signal.

The terminal section does not provide safe insulating
distance. So to avoid electric shock, disconnect mains
power before connecting test leads to the terminals.

• Set the slide switch to [M] for measuring only, or to [M/S] if you
want to measure and use source functions at the same time

• If the source functions are not used but the slide switch is set
to [

M/S], continuous operating time per battery charge will be

shortened.

• Malfunctions may occur when measuring a voltage with har monic
elements.

• Before measurement, verify that is no longer displayed.

When is displayed, please press the [SHIFT] button to cancel
the display.

4

1
2
3
4
5
6
7
8
9

11

52

4.1 Measuring Voltage

4.1 Measuring Voltage

Procedure

1. Set the slide switch to the [M] position.

2. Set the

3. Connect the red L9207-10 TEST LEAD to the (+) INPUT

4. Press the [AC/DC] button as needed to s elect the appropri ate

The maximum input voltage is 250 VDC, 250 Vrms (with

maximum 10
to measure voltage in excess of the maximum input could
destroy the instrument and result in personal injury or death.

•Setting [mV] is for 50 mV and 500 mV range measurement.

•Setting [

terminal, and the black L9207-10 TEST LEAD to the (-) INPUT
terminal.

voltage measurement function.

6

V•Hz voltage-frequency product). Attempting

function selector

/V] is for the range over 500 mV measurement .

to the

[

/V

] or [mV] position.

5. To enable man ual range selection, press the [RANGE/AUTO]

button (so the indicator is not displayed on the LCD).

To re-enable auto- ranging, hold the [RANGE/AUTO] button for one
second.

6. Connect the test leads to the circuit to be measured, and read

the displayed value.

10

Measuring DC voltage Measuring AC voltage

Display Example

After pressing the and buttons

After pressing the button

4.1 Measuring Voltage

• Press the [DUAL] button to activate the Dual Display mode.

• Press the [
duty cycle or pulse width) in the Dual Display mode.

❖ Detail→ 4.8.5 "Dual Display Function" (70 p.)

Hz] button to activate frequency measurement (or

53

1
2
3
4
5
6
7
8
9

11

54

4.2 Measuring Current

4.2 Measuring Current

Never apply voltage to the test leads when a current
measurement function is selected. Doing so may damage the
instrument and result in personal injury.
To avoid electrical accid ents, remove power from the circuit
before connecting the test leads.

To avoid electrical shock, do not use the instrument to
measure current in circuits of 250 V or greater. The current
function overload protection tri ps at 250 VDC, or 250 Vrms.

Procedure

1. Set the slide switch to the [M] position.

2. Set the function selector t o th e [ /mA] position.

3. Connect the red L9207-10 TEST LEAD to the (+) INPUT

terminal, and the black L9207-10 TEST LEAD to the (-) INPUT
terminal.

4. Press the [AC/DC] button as needed to s elect the appropri ate

current measurement function.

5. To enable man ual range selection, press the [RANGE/AUTO]

button (so the indicator is not displayed on the LCD).

To re-enable auto- ranging, hold the [RANGE/AUTO] button for one
second.

55

10

DC Current
Display

Display Switching

"4-20 mA%" or "0-20 mA%"
Display

AC+DC Current Display

AC Current
Display

4.2 Measuring Current

6. Connect the te s t le ads t o th e c irc uit to be measured, and read

the displayed value.

• Press the [DUAL] button to activate the Dual Display mode.

• Press the [
duty cycle or pulse width) in the Dual Display mode.

❖ Detail→ 4.8.5 "Dual Display Function" (70 p.)

• "4-20 mA%" displays 4 mA input as 0% and 20 mA input as
100%.

• "0-20 mA%" displays 0 mA input as 0% and 20 mA input as
100%.

• You can select between "4-20 mA%" and "0-20 mA%" display
modes in the 5.4 "Power-On Options" (76 p.).

Hz] button to activate frequency measurement (or

1
2
3
4
5
6
7
8
9

11

56

Selecting the Measurement Mode

Hz
Measurement

Duty Cycle
Measurement

Pulse
Measurement

Press the button for
one second or more.

Selecting the Trigger Slope

4.3 Measuring Frequency

4.3 Measuring Frequency

Procedure

1. Display voltage or current by t he procedures in 4.1 (52 p.) or

4.2 (54 p.).

2. Press the [Hz] button and read the displayed voltage.

3. Pressing the [Hz] button repeatedly toggles through Hz, duty

cycle and pulse measurement.

4. Hold the [Hz] but ton for one secon d to return to t he status in

Step 1.

10

4.4 Measuring Resistance

57

4.4 Measuring Resistance

Procedure

1. Set the slide switch to the [M] position.

2. Set the function se lector to the [Ω] positi o n

3. Connect the red L9207-10 TEST LEAD to the (+) INPUT

4. Connect the te s t le ads t o th e c irc uit to be measured, and read

5. To enable manual range selection, press the [ RANGE/AUTO]

Never apply voltage to the input terminals when the
Resistance function is selected. Doing so may damage th e
instrument and result in personal injury.
To avoid electrical accidents, remove power from the circuit
before measuring.

terminal, and the black L9207-10 TEST LEAD to the (-) INPUT
terminal.

the displayed value.

button (so the indic at or is not dis played on the LCD)

1
2
3
4
5
6
7
8
9

To re-enable auto-ranging, hold the [RANGE/AUTO] button for
one second.

6. Pressing the [AC/DC] button toggles the continuity test

function on and off ( mark is displayed/not displayed).
At this time, auto-ranging is dis abled.

11

58

Resistance Measurement Display Example

Continuity Test Display Example

4.4 Measuring Resistance

With the resistance measurement function active, short the
probe tips together and press the [
internal resistance of the probes.

4.4.1 Continuity Test

Procedure

1. When the resistance measurement function is active, pressing

the [

AC/DC] button enables the cont inuity test function using

resistance measurement.

At this point, the 500 Ω range is selected, and if auto-ranging was
active, it is disabled and manual ranging is enabled.

REL] button to zero out the

• Pressing the [RANGE] button selects each range.

• The beeper sounds whenever the resistance is 1000 counts
or less in the selected range.

2. Press the [AC/DC] button agai n to exit the continuity testing

function.

• While the continuity test function is active, holding the [RANGE/

AUTO

] button for one second activates auto-ranging. In this
case, the beeper sounds whenever the measured resistance
value is about 10 Ω or less.

• When you cancel the continuity test function, the resistance
measurement range does not revert to the range that was
active at the time the function was enabled.

10

4.5 Diode Test

Diode Test Display Example

59

4.5 Diode Test

Procedure

1. Set the slide switch to the [M] position.

2. Set the function se lector to the [ ] position.

3.

4. Connect the te s t le ads t o th e c irc uit to be measured, and read

5. The display ap pears as follows:

Never apply voltage to the input terminals w hen the Diode
Test function is selected. Doing so may damage the
instrument and result in personal injury.
To avoid electrical accidents, remove power from the circuit
before measuring.

Connect the red L9207-10 TEST LEAD to the (+) INPUT
terminal, and the black L9207-10 TEST LEAD to the (-) INPUT
terminal.

the displayed value.

Forward direction
Reverse dire ction
Short-circuit
Open-circuit

0.3 to 0.8 V forward voltage drop displayed
[OL] displayed
Approx. 0 V displayed, and beeper sounds
[OL] displayed in forward direction

1
2
3
4
5
6
7
8
9

The diode function also works for continuity testing. The beeper
sounds at voltage levels of about 50 mV or less.

11

60

Temperature Measurement Disp lay Example

4.6 Measuring Temperature

4.6 Measuring Temperature

Temperature can be measured using an optional temperature
probe.

• To avoid damage to the instrument, do not apply voltage or cur­rent to temperature probe.

• Do not bend the thermocouple leads, sharp ly. Repeatedly bend­ing the leads can break them.

Measurement Procedure

1. Set the slide switch to the [M] position .

2. Set the function selector t o th e [mV ] position.

3. Connect the temperature probe to the (+) and (-) INPUT

terminals.

4. Hold the [TEMP] button for one second to start temperature

measurement.

Pressing the [AC/DC] button displays [0°C] on the LCD .
At this point, the reference junction temperature is 0°C.

4.7 Source and Measure Simultaneously

10

Measuring voltage [ /V], or [mV]
Measuring current [

/mA]

Measuring resistance [Ω]
Diode Test [ ]
Measuring temperature [mV]
Measuring frequency [

/V], [mV], or

[

/mA]

ex. Voltage source and Measuring

resistance

4.7 Source and Measure Simultaneously

61

Procedure

1. Set the slide switch to the [M/S] position.

Set the function selector.

2.

• Voltage source:
Set to [
function position (dark labels on
white background) that will be
measured.

• Current source:
Set to [
function position (dark labels on
white background) that will be
measured.

❖ Follow the appropriate separate procedure from here.

CV] and a measurement

CC] and a measurement

Section 3 "Using Source Functions" (31 p.)

4.1 "Measuring Voltage" (52 p.) to 4.6 "Measuring Temperature" (60
p.)

1
2
3
4
5
6
7
8
9

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62

4.8 Special Measurement Functions

4.8 Special Measurement Functions

This instrument provides the following special measurement
functions:

Function Use Reference

Recording

Data Hold and Refresh Hold

Relative (relative dis pl ay)

1-ms Peak Hold

Dual Display

For acquiring long-term data and checking
for transients.

Use to simplify reading fluctuating
measurements.

• When you want to zero out the internal
resistance of probes

• When you want to read only the di ffere nce
(offset) of a measured value from another
value

• When you want high-accuracy
measurement in the 50 mV DC or DCA
ranges

Use to determine the crest factor of a
waveform, where

crest factor = wavefo rm peak value / true
rms value

Use to monitors two different measurement
parameters (voltage, current, frequency,
duty cycle or pulse width) of one signal
simultaneously.

❖ 4.8.1 (63 p.)

❖ 4.8.2 (66 p.)

❖ 4.8.3 (67 p.)

❖ 4.8.4 (68 p.)

❖ 4.8.5 (70 p.)

10

4.8.1 Recording Function

During measurement, maximum (MAX), minimum (MIN) and
average (AVG) values can be automatically recorded in memory.

63

4.8 Special Measurement Functions

1

In what situations
is it used?

Procedure

While measuring, hold the [HOLD/MAX

1.

MIN] button for one second.

appears on the display as the recording
function starts.

For acquiring long-term data and checking for
transients.

2. Press the [HOLD/MAX MIN] button to change the display as

follows:

Display

Indication

Real-time measurement

value

Current measuremen t value

Maximum value

Minimum value

Average value

2
3
4
5
6
7
8
9

3. Hold the [HOLD/MAX MIN] button again for one second to stop

the recording function. The indicators
disappear from the display.

11

64

4.8 Special Measurement Functions

• The beeper sounds and the relevant value is refreshed when
a new maximum or minimum value is recorded.

• When an overload value is measured, calculation of the
average value stops, and [
value.

• When the recording function is started with auto-ranging
enabled, the maximum (MAX), minimum (MIN) and average
(AVG) values can be in different ranges.

When the recording function is active, the power saver function
is disabled, and does no t appear on the display.
The average value is the average of all recorded measurements

since recording was started.

OL] is displayed for the average

10

Recording Display Example

65

4.8 Special Measurement Functions

1
2
3
4
5
6
7
8
9

11

66

Data Hold Function

Refresh Hold Function

4.8 Special Measurement Functions

4.8.2 Data Hold / Refresh Hold Function

In what situations
is it used?

This function holds measured values on the display.

Use to simplify reading fluctuating measurements.

Procedure

Press the [HOLD/MAX MIN] button to

1.

activate the Data Hold function.
appears on the display, and the displayed
value is held (retained).

2. Press the [HOLD/MAX MI N ] but ton again to measure on e time

and hold the measurement data.

3. Hold the [HOLD/MAX MIN] but t on for one second to cancel the

Data Hold function . disappears from the display.

• This function automatically refreshes the (held) displayed value
when the measured value changes while Data Hold is active.

• The Data Hold function can be changed to the Refresh Hold
function in the Power-On Options.

❖ 5.4 "Power-On Options" (76 p.)

• If a change occurs that is greater than the count value (100 to

1000) set in the Power-On Options, the value is refreshed (while

is blinking).

Procedure

1. Press the [HOLD/MAX MIN] button to activate the Refresh

Hold function. appears on the display.

2. Press the [HOLD/MAX MIN] button for one second to cancel

the Refresh Hold function. disappears from the display.

4.8 Special Measurement Functions

10

Zeroing Out Probe Resist ance

4.8.3 Relative (relative display) Function

The function applies to all measurement functions, subtracting a
reference value from the measured value and displaying the
calculated result.

67

1

In what situations
is it used?

Procedure

1. Press the [REL] button to activate the Relative function.

2. Press the [REL] button again to cancel the Relat ive function.

• When you want to zero out the internal resistance
of probes

• When you want to read only the difference (offset)
of a measured value from another value

• When you want high-accuracy measurement in the
50 mV DC or DCA ranges

appears on the display.

At this point,

• The displayed value becomes the reference for subsequent
measurements, and is redisplayed as zero.

• If measured data is at overload le vel, [

disappears from the disp lay.

• The Relative function cannot be activated if an overload is
present ([

• With the resistance measurement function active, short the
probe tips together and press the [
internal resistance of the probes.

OL] displayed).

OL] appears on t he d isp lay.

REL] button to zero out the

2
3
4
5
6
7
8
9

11

68

Display

indication

Measurement value

Maximum value

Minimum value

4.8 Special Measurement Functions

4.8.4 1-ms Peak Hold Function

• Works with voltage and current measurement functions

• Shows the peak value of an input signal waveform
Use to determine the crest factor of a waveform,

In what situations
is it used?

Procedure

Hold the [AC/DC] button for one second to

1.

activate the 1-ms Peak Hold function.

appears on the display.

where

crest factor = waveform peak value / true rms
value

At this point,

• The measurement range displayed when the function was
activated is held (retained).

• If auto-ranging was enabled, manual rangi ng is activate d with the
currently operative range retained.

• Pressing the [HOLD/MAX MIN] button updates the displayed
(held) MAX and MIN values.

• The beeper sounds when a new maximum or minimum
value is measured.

• Pressing the [
and restarts 1-ms Peak Hold operation.
The maximum (MAX) and minimum (MIN) display mode are
not changed.

DUAL] button resets the MAX and MIN values

4.8 Special Measurement Functions

10

1-ms Peak Hold Function

Display State Switching

(function disabled state)

Hold for one second

(function enabled state)
Maximum value display

(function enabled state)
Minimum value display

Press the [AC/DC] button for one second

2.

to cancel the 1-ms Peak Hold function.

disappears from the displa y.

69

1
2
3
4
5
6
7
8
9

11

70

4.8 Special Measurement Functions

4.8.5 Dual Display Function

This function simultaneously monitors two different measurement
parameters (voltage, current, frequency, duty cycle or pulse width)
of one signal.

Procedure

1. Press the [DUAL] or [Hz] button to activate dual display.

(1) Pressing the [DUAL] button selects the Dual Display mode

Pressing it repeatedly changes the display as follows.

Function

Selector Position

/ V

mV

mA

Primary Display Secondary Display

Frequency

Voltage measurement (V)

Voltage measurem ent (m V)

Current measurement (mA)

measurement

Source function display

Frequency

measurement

Source function display

Frequency

measurement

Source function display

71

10

4.8 Special Measurement Functions

(2) Press the [Hz] button to activate frequency measurement (or

duty cycle or pulse width) in the Dual Display mode.
Pressing it repeatedly changes the display as follows.

Function

Selector Position

/ V

mV

mA

• When measuring frequency or pulse width, pressing the
[

RANGE/AUTO] button toggles between auto- and manual

ranging.

• When measuring duty cycle or pulse width, holding the [

DC

] button for one second toggles the trigger slope

between and .

Primary Display Secondary Display

Frequency
Duty cycle

Pulse width

Frequency
Duty cycle

Pulse width

Frequency
Duty cycle

Pulse width

Voltage measurement

Voltage measurement

Current measurement

2. To c anc el the Dual Display mode

• When pressed [DUAL] button at procedure 1. : Press [DUAL]
button again.

• When pressed [Hz] button at procedure 1. : Hold the [Hz] button
for one second.

(V)

(mV)

(mA)

1
2
3
4
5
6

AC/

7
8
9

11

72

Display Example

After pressing the buttons

After pressing the button

4.8 Special Measurement Functions

5.1 Auto Power Off Function

10

Functions 5

5.1 Auto Power Off Function

The Auto Power Off function is provided to minimize battery
consumption.
This function is automatically enabled when the meter is turned on

( appears on the display).

73

1
2
3

• During operation, if one of the following actions is not
performed within a specific period, the meter turns off
automatically.

1.Any key is pressed

2.The recording function is active

3.The 1-m s Peak H old function is active

4. is displayed with Source mode

5. If the Auto Power Off function has been disabled in the

Power-On Options

• To turn power back on after it has been turned off, move the
function selector to the [OFF] position, wait for one second,
then turn it back on.

When power is turned off by Auto Power Off, all settings are
reset.
When you will be using the meter for a long period, disable Auto

Power Off (so that does not appear on the display)

Disabling Auto Power Off

Timing and disabling of the Auto Power Off function is set in the
Power-On Options.

❖ 5.4 "Power-On Options" (76 p.)

To disable the function, set the time to [OFF m].

4
5
6
7
8
9

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74

5.2 Backlight Function

5.2 Backlight Function

The LCD backlight can be enabled or disabled.

Procedure

1. Hold the [SHIFT] button for one second to turn on the LCD

backlight.

Once the backlight is turned on, it turns off automatically after a
preset time (set by the Backlight Auto-Off function).

2. Hold the [SHIFT] button for one second if you want to manually

turn off the LCD backlight.

Disabling the Backlight Auto-Off Function

Timing and disabling of the Backlight Auto-Off function are set in
the Power-On Options.

❖ 5.4 "Power-On Options" (76 p.)

To disable the function, set the time to [OFF sec].

5.3 RS-232C Communication Functions

10

Connect to USB
connector on the PC

Connection band

5.3 RS-232C Communication Functions

The meter includes a data transfer function using an RS-232C
interface, by which the meter can be connected to a PC to transfer
measurement data for collection and storage.

To use this function, the optional 3856-02 COMMUNICATION

PACKAGE (USB)

set, is required.

, a special communication cable and software

75

1
2

Transferring Data to a PC

1. The optical-connector end of the communication cable

connects to the socket on the back of the meter.

At this time, the "RS-232C INTERFACE" label should face
upward.

Connect the USB connector

2.

on the cable to a USB
interfa c e on the PC.

3. Install the supplied driv er.

3
4
5
6
7
8
9

4. Run the software to activate data acquisition.

• Refer to the instruction manual provided with the 3856-02 for
software usage procedures.

• When operating with the case cover folded back, install the
supplied connection band to lessen the chance of tipping over.

11

76

5.4 Power-On Options

5.4 Power-On Options

These settings are retained even when power is turned off and the
batteries removed.
The various settings are described in the table on the next page.

Setting Procedure

1. Turn the meter off (if on).

2. Hold the [AC/DC] button while turning the meter on (set the

function selector to any posit ion).

3. Press the [] or [] button to select the item y ou w ant to set.

4. Press the [] or [] button to change the setting.

5. Press the [Hz] button to accept your setting.

(The selected item ceases blinking and stays lit)

6. Press the [SHIFT] button. All LCD segments appear and

progress through the Power-On Options setting displays.

To set multiple items, repeat Steps 3 to 5 above.

If you change an item without pressing the [Hz] button, or if you
hold the [Hz] button for more than one second, the selected
setting remains unchanged.

10

Power-On Options

77

5.4 Power-On Options

Item Display

Echo

Data length

Parity

Baud Rate

Backlight

Auto power off

Refresh hold

Beep sound

Minimum Measur e-

ment Frequency

Default

(factory setting)

OFF

8 bit

None

9600 bps

30 sec

15 m

OFF

4800 Hz

0.5 Hz

Selection Contents

OFF/ON

With ECHO ON, the meter echoes
(returns) all the characters what­ever it receives.

8bit/7bit

None/odd/EN (even)

2400 bps/4800 bps/9600 bps/19200
bps
The display shows [

bps].

[
OFF sec/01 to 99 sec

Setting OFF disables the Backlig ht
Auto Off function

OFF m/01 to 99 m

• Setting OFF disables the Auto
Power-Off function

• "m" means "minute".

OFF/100/200/300/400/500/600/700/
800/900/1000
Setting OFF enables Data Hold

OFF/600 Hz/1200 Hz/2400 Hz/4800
Hz

0.5 Hz/1 Hz/2 Hz

Hz] in place of

1
2
3
4
5
6
7
8

DCmA% Display

Printer

4-20 mA

OFF

4-20 mA/0-20 mA

OFF/ON
When turned ON, data f or every sam­ple is output to the serial interface.

When turned ON, appears
blinking, and o ther serial commun ica­tions are disabled.

9

11

78

5.4 Power-On Options

6.1 Transducer Calibration

10

Applications 6

6.1 Transducer Calibration

Transducers that accept pulse input and provide current output can
be calibrated.

79

1
2

Procedure

1. Set the slide switch to the [M/S] position.

Set the function selector to the

2.

[

PULSE] and [ /mA] position.

3. Press the [SHIFT] button and confirm that is displayed

on the LCD.

4. Press the [MODE] button, and set the duty cycle, pulse width

and frequency.

3
4
5
6
7
8
9

5. While paying at tention to polarity, connect the meter ’s output

terminals to the transdu cer’s input te rminals, and the me ter’s
input terminals to the transducer’s output.

6. Press the [OUTPUT] button to begin pulse generation.

(During the sourcing, is displayed on the LCD.)

11

80

6.1 Transducer Calibration

7. Read the displayed valu e

Verify that the frequency and current values meet the
transducer’s specifications.

8. Change the fr equency and observe the cur rent value.

10

6.2 Loop Test

Note which terminal has the higher voltage.

L9207-10
TEST LEAD (black)

L9207-10
TEST LEAD (red)

Device under test

(with internal power)

The meter’s constant current source function can be used to check
4- to 20-mA measurement devices.

Wiring Preparation

Set the slide switch to [M/S] and set the

1.

function selector as shown in the illustration.

2. Using the voltage measurement function of the meter (see 4.1

(52 p.)), measure the (loop) voltage between the input
terminals of the device under test.

81

6.2 Loop Test

1
2
3
4
5
6
7
8
9

11

82

Test lead
(yellow)

Wiring

Test lead (black)

Lower-voltage terminal

Direction of
current flow

Direction of
current flow

Higher-voltage terminal

Device under test

(with internal power)

Wiring

6.2 Loop Test

1. Connect the black test lead from the negative OUTPUT

terminal of the meter to the higher-voltage terminal of the
device under test.

2. Connect the yellow test lead from the positive OUTPUT

terminal of the meter to the lower-voltage terminal of the
device under test.

3. Press the [SHIFT] button and confirm that is displayed

on the LCD.

Use the supplied red test lead when testing measurement
instruments that are not internally powered. The set current will
not flow if the yellow test lead is used.

10

Use the cursor button s [///] to set

4.

the current to be sourced. The setting
value should have positive polarity.
Press the [
current.

(During the sourcing, is displayed
on the LCD.)

OUTPUT] button to output the

83

6.2 Loop Test

1
2

When the input impedance of the device under test is low
(approx. below 140 Ω and a voltage of 24 V), the internal

protection circuitry may prevent from being displayed even
when the [OUTPUT] button is pressed.
When this happens, insert a series resistance of approx. 100 ­200 Ω between the instrument and the device under test.

3
4
5
6
7
8
9

11

84

6.2 Loop Test

7.1 Product Specifications

10

Specifications 7

7.1 Product Specifications

Output method Bipolar sink/source output
Measurement method Double integral system
AC Measurement

method

Functions

Additional functions

Switches Slide switch, Function selector
Range selection Full auto or manual
Display device LCD with backlight

Display contents
Maximum

measurement count
Polarity indicator "-" symbol displayed automatically
Auto power off Settable (0 to 99 minutes in 1-minute intervals)
Low battery indication Warning on LCD when battery voltage falls below 9 V

Sampling rate

Temperature
characteristic

Noise susceptibi lity

True RMS
DC constant voltag e (DCCV) sour ce, DC constant current (DC CC) source,

Pulse (PULSE) source, DC voltage (DCV) measurement,
AC voltage (ACV) measurement, AC + DC voltage (ACDCV)
measurement,
DC current (DCA) measurement, AC current (ACA) measurement,
AC + DC current (ACDCA) measurement, Resistance (OHM)
measurement,
Diode testing (DIODE), Continuity testing (CONT),
Temperature (TEMP) measurement, Frequency (FREQ) measurement,
Duty cycle (DUTY) measurement, Pulse width (WIDTH) measurement

• Settable duty cycle, pulse width and amplitude pulse generation

• Mem ory generation (16 memor y data settings per range); s can generation
(single/continuous)

• Ramp generation

• AC+DC RMS voltage/current measurement

• 1-ms Peak Hold (for voltage/current measurement)

• Recording

• Data Hold/Refresh Hold

• Relative display

• 4 - 20 mA current-loop percentage display, 0 - 20 mA percentage display

• RS-232C data communications

• Power-on options

Two 5-digit numeric digital displays (for source and measurement
functions), one large primary display and one small secondary display)

51,000 counts

Approx. 3/s (except AC+DC and frequency measurement)
Approx. 1/s for AC+DC and frequency measurement
Approx. 0.25 - 4/s for duty cycle and pulse width measurement

Add the following except within 23±5°C
Source functions : ±(50ppm of setting + 0.5dgt)/°C
Measurement functi ons: ±(measurement accuracy × 0.15)/°C

NMRR >60 dB (50/60 Hz)
CMRR >90 dB (50/60 Hz)

85

1
2
3
4
5
6
7
8
9

11

86

7.1 Product Specifications

Over load protection

DCCV, DCCC, PULSE: ±30 VDC, fuse protected (250VT63 mAL fuse)
DCV, ACV, ACDCV : 250 VDC/250 Vrms at 10

voltage-frequency product
DCA, ACA, ACDCA : fuse protected (250VF630 mAH fuse)
OHM, DIODE, CONT, TEMP, FREQ: 250 Vrms at 10

6

V ･ Hz maximum

6

V ･ Hz maximum

voltage-frequency product

Maximum rated voltage
and current

• Maximum output voltage and current : ±15 V, ±25 mA

• Maximum input voltage and current : 250 V, 500 mA

• Maximum voltage to earth of the input terminal: 250 V

• Between case and combined powe r supply terminals: 510-Vrms 50/60-

Hz sine wave for one minute

• Between case and combined output ter minal s: 510- Vrms 50/ 60-H z sin e

wave for one minute

• Between combined input terminals and co mbined ou tpu t termi nals: 51 0-

Withstand voltage

Vrms 50/60-Hz sine wave for one minu te

• Between case and combined input terminals: 2.3-kVrms 50/60-Hz sine

wave for one minute

• Between combined power supply terminals and combined input

terminals: 2.3-kVrms 50/60-Hz sine wave for one minute

• Between combined output terminals and combined input terminals: 2.3-

kVrms 50/60-Hz sine wave for one minute

Operating temperatur e
& humidity

Storage temperature &
humidity

0 to 40°C, 0 to 80%RH (non-condensation)
However, above 30°C , humidity is derated to 50% RH at 40°C

-20 to 60°C, 0 to 80%RH (non-condensation, w/o batteries)

Operating location Indoors, below 2000m ASL
Period of guaranteed

accuracy

Power supply

Rated pow er
consumption

Maximum rated power
consumption

Continuous operation

1 year

• Eight 1.5V AA-size (LR6) alkaline batteries, or Eight 1.2V NiMH batteries

• AC adapter (Model No SA-141A0F-11 supplied)

Rated mains voltage and frequency100 to 250 VAC @47 to 63 Hz
(Voltage fluctuations of ±10% from the rated supply voltage are taken into
account.)

3.5 VA typical (@25 mA CC, with maximum load)

0.6 VA typical (measurement only)
5 VA
Approx. 20 hours measurement only, 4 hours both sourcing and

measuring (with supplied NiMH batteries, new, with full charge)

Charging time Approx. 8 hours (at 0 to 30°C ambient temperature)
Dimensions Approx. 90W × 192H × 54D mm (Approx. 3.54"W× 7.56"H× 2.13"D)
Mass Approx. 735 g (Approx. 25.9 oz.)(instrument only)

AC adapter SA-141A0F-11 (with power cord)......................................... 1

Battery pack (Ni-MH battery) ..................................... 8 (four 2-cell packs)

Carrying case....................... ...... ..... .........................................................1

Accessories

L9207-10 TEST LEAD (one each red and black, for Input terminal) .......1

Test leads (one each red and black, for Output terminal)........................1

Test lead (Yellow, with 15V zener diode).................................................1

Instruction manuals..................................................................................1

Operation guide.......................................................................................1

Replacement parts Fuses: 250VT63mAL, 250VF630mAH

10

Options

Applicable standards

7.1 Product Specifications

3856-02 COMMUNICATION PACKAGE (USB)
9180 SHEATH TYPE TEMPERATURE PROBE
9181 SURFACE TEMPERATURE PROBE
9182 SHEATH TYPE TEMPERATURE PROBE (Class 1)
9183 SHEATH TYPE TEMPERATURE PROBE (Class 1)
9472 SHEATH TYPE TEMPERATURE PROBE (Class 1)
9473 SHEATH TYPE TEMPERATURE PROBE (Class 1)
9474 SHEATH TYPE TEMPERATURE PROBE (Class 1)
9475 SHEATH TYPE TEMPERATURE PROBE (Class 1)
9476 SURFACE TEMPERATURE PROBE

Safety : EN61010

Pollution degree 2
Measurement category II (anticipated transient overvoltage
2,500V)

EMC : EN61326

EN61000-3-2
EN61000-3-3

87

1
2
3
4
5
6
7
8
9

11

88

7.2 Accuracy

7.2 Accuracy

7.2.1 Source Range and Accuracy

Accuracy is specified at 23 ± 5°C, and 80%RH or less, after at
least five minutes warm-up.

DC const ant voltage (DCCV) source Fun ction

Range Output Ra nge Resolution Accuracy Remarks

1.5000 V 0 to ±1.5000 V 0.1 mV

• Load regulation = 0.012 mV/mA

• Maximum applied voltage = ±30 VDC

DC constant current (DCCC) source Function

Range Output Ra nge Resolution Accuracy Remarks

25.000 mA

0 to ±25.000 mA

1 μA

±(0.03% of

setting+3 dgt.)

±(0.03% of

setting+5 dgt.)

Sink/source output

At least ±25mA max.

output15.000 V 0 to ±15.000 V 1 mV

Sink/source output

At least ±12 V output

• Load regulation = 1 μA/V

• Maximum applied voltage = ±30 VDC

Pulse (PULSE) source Function

Setting Output Range Resolution Accuracy

0.5, 1, 2, 5, 10, 15, 20, 25, 30, 40,

Frequency

Duty 0.39% ~ 99.60% 0.390625 %

Pulse width

Output

voltage

50, 60, 75, 80, 100, 120, 150, 200,

240, 300, 400, 480, 600, 800, 1200,

1600, 2400, 4800 Hz

(0.39% ~ 99.60%)

× 1/frequency

5 V, 12 V -

±5 V, ±12 V -

-

1/(256 ×

Frequency)

• Duty cycle and pulse width must be set with at least 50 μs positive pulse width.

• Duty cycle and pulse width output voltage accuracy specification presumes at
least 50 μs positive pulse width.

• Maximum applied voltage is ±30 VDC.

±(0.005% of

setting+0.01 Hz)

±(0.01% of

setting+0.2%)

However, at 1 kHz
and above, add
±0.1% /kHz of
setting.

±(0.01% of

setting+0.3 ms)

±(2% of

setting+0.2 V)

±(2% of

setting+0.4 V)

10

7.2.2 Measurement Range and Accuracy

Accuracy is specified at 23 ± 5°C, and 80%RH or less, after at
least five minutes warm-up.

89

7.2 Accuracy

1

DC voltage measurement (DCV) function

Range Measurement Range Resolution Accuracy

50 mV*1 0 mV to ± 51.000 mV 1 μV

500 mV 0 mV to ±510.00 mV 10 μV

5 V 0 mV to ±5.1000 V 0.1 mV

50 V 0 mV to ±51.000 V 1 mV

250 V 0 mV to ±250.00 V 10 mV

• Input impedance : 50 mV and 500 mV ranges: 1000 MΩ

• Overvoltage protection : 250 Vrms

• Upper limit voltage-frequency product : 10
*1: When measuring REL after shorting input terminals before measurement.

Accuracy when not measuring REL is ±(0.05% of setting+50 dgt.).

: 5 V, 50 V and 250 V ranges: 10 MΩ

6

V•Hz

±(0.05% of rdg.

+5 dgt.)

±(0.03% of rdg.

+5 dgt.)

AC voltage measurement (ACV) function

±(0.7% of

±(0.7% of

Accuracy

±(1.5% of

rdg.+40 dgt.)

±(1.5% of

rdg.+20 dgt.)

Range

50 mV 0 mV to 51.000 mV 1 μV

500 mV 0 mV to 510.00 mV 10 μV

5 V 0 mV to 5.1000 V 0.1 mV

50 V 0 mV to 51.000 V 1 mV

250 V 0 mV to 250.00 V 10 mV

Measurement

Range

Resolution

45 Hz to 5 kHz 5 kHz to 20 kHz

rdg.+40 dgt.)

rdg.+20 dgt.)

2
3
4
5
6
7
8
9

• Accuracy specified for 5% or more from the edges of range.

• Input impedance : 50 mV and 500 mV ranges : 1000 MΩ

• Overvoltage protection: 250 Vrms

• Crest factor : 3 or less

• Upper limit voltage-frequency product : 10

: 5 V, 50 V and 250 V ranges : 10 MΩ//(100p F or less)

6

V•Hz

11

90

7.2 Accuracy

AC + DC voltage measurement (ACDCV) function

±(0.8% of

±(0.8% of

Accuracy

rdg.+70 dgt.)

rdg.+25 dgt.)

±(1.6% of

±(1.6% of

Range

50 mV 0 mV to 51.000 mV 1 μV

500 mV 0 mV to 510.00 mV 10 μV

5 V 0 mV to 5.1000 V 0.1 mV

50 V 0 mV to 51.000 V 1 mV

250 V 0 mV to 250.00 V 10 mV

Measurement

Range

Resolution

45 Hz to 5 kHz 5 kHz to 20 kHz

rdg.+70 dgt.)

rdg.+25 dgt.)

• Accuracy specified for 5% or more from the edges of range.

• Input impedance : 50 mV and 500 mV ranges : 1000 MΩ

: 5 V, 50 V and 250 V ranges : 10 MΩ//(100pF or less)

• Overvoltage protection: 250 Vrms

• Crest factor : 3 or less

• Upper limit voltage-frequency product : 10

6

V•Hz

DC current measurement (DCA) functio n

Range

50 mA

500 mA

Measurement

Range

*1

0 mA to ±51.000 mA 1 μA

*1

0 mA to ±510.00 mA 10 μA0. 6 V (1 Ω)

Resolution Accuracy

±(0.03% of

rdg.+5 dgt.)

Overcurrent protection : fast-blow fuse (630 mA @250 V)
*1: When measuring RE L after openi ng input termina ls before measur ement, or

for "0 mA" input . Accu racy when not me asuri ng RE L is ±(0.03% of rdg. + 25
dgt.)

Maximum

voltage/shunt

resistance

0.06 V (1 Ω)

AC current measurement (ACA) function

Range

50 mA 0 mA to 51.000 mA 1 μA

500 mA 0 mA to 510.00 mA 10 μA0. 6 V (1 Ω)

Measurement

Range

Resolution

Accuracy

(45 Hz to 2 kHz)

±(0.6% of

rdg.+20 dgt.)

• Accuracy specified for 5% or more from the edges of range.

• Overcurrent protection : fast-blow fuse (250 V@630 mA)

• Crest factor : 3 or less

Maximum

voltage/shunt

resistance

0.06 V (1 Ω)

7.2 Accuracy

10

AC + DC current measurement (ACDCA) function

91

Range

50 mA 0 mA to 51.000 mA 1 μA

500 mA 0 mA to 510.00 mA 10 μA0. 6 V (1 Ω)

• Accuracy specified for 5% or more from the edges of range.

• Overcurrent protection : fast-blow fuse (250 V@630 mA)

• Crest factor : 3 or less

Measurement

Range

Resolution

Accuracy

(45Hz to

2kHz)

±(0.7% of

rdg.+40 dgt.)

Maximum

voltage/shunt

resistance

0.06 V (1 Ω)

1-ms Peak Hold vol tage measurement (V) function

Range Measurement Range Resolution Accuracy

50 mV 0 mV to ±51.000 mV 1 μV

500 mV 0mV to ±510.00 mV 10 μV

5 V 0 mV to ±5.1000 V 0.1 mV

50 V 0 mV to ±51.000 V 1 mV

250 V 0 mV to ±250.00 V 10 mV

• Measurement accuracy specifications apply to signals with transition times
exceeding 1 ms.

• Input impedance : 50 mV and 500 mV ranges : 1000 MΩ

: 5 V, 50 V and 250 V ranges: 10 MΩ

• Overcurrent protection : 250 Vrms

±(2% of rdg. + 400 dgt.)

1-ms Peak Hold current measurement (A) function

Range Measurement Range Resolution Accuracy

50 mA 0 mV to ±51.000 mA 1 μV

500 mA 0 mV to ±510.00 mA 10 μV0. 6 V (1 Ω)

±(2% of

rdg.+400 dgt.)

Maximum

voltage/shunt

resistance

0.06 V (1 Ω)

1
2
3
4
5
6
7
8
9

• Measurement accuracy specifications apply to signals with transition times
exceeding 1 ms.

• Overcurrent protection : fast-blow fuse (250 V@ 630 mA)

11

92

7.2 Accuracy

Resistance measurement (OHM) function

Range

500 Ω

5 kΩ

50 kΩ

500 kΩ

5 MΩ

50 MΩ

Measurement

Range

*1

0 Ω to 510.00

*1

0 Ω to 5.1000 k
0 Ω to 51.000 k
0 Ω to 510.00 k

0 Ω to 5.1000 M

0 Ω to 51.000 M

Resolution Accuracy

Ω 0.01 Ω

Ω 0.1 Ω
Ω 1 Ω 45 μA
Ω 10 Ω 4.5 μA

Ω 0.1 kΩ 450 nA

Ω 1 kΩ

±(0.15% of

rdg.+8 dgt.)

±(0.15% of

rdg.+5 dgt.)

±(1% of

rdg.+8 dgt.)

Measurement

current

0.45 mA

45 nA

Open-

Circuit

Terminals

<+4.8 VDC

*1: Measuring REL to short-circuited probes

• If measured value is 1000 dgt. or less, the beeper sounds (on/off settable).

• Accuracy of 50 MΩ range is specified at 60%RH or less.

• Overcurrent protection : 250 Vrms

Diode test (DIODE) function

Range Resolution Accuracy

Diode 0.1 mV

±(0.05% of

rdg.+5 dgt.)

Overcurrent protection : 250 Vrms

Measurement

current

Approx.

0.45 mA

Open-Cir cu it

Terminals

<+4.8 VDC

Continuity test (CONT) function

Range Resolution Accuracy

Diode -

Beeper sounds at

about 50 mV or less

Overcurrent protection : 250 Vrms

Measurement

current

Approx.

0.45 mA

Open-C irc uit

Terminals

<+4.8 VDC

Temperature measurement (K Thermocouple) (TEMP)
function

Range Measurement Range Resolution Accuracy

°C -40 to 1372°C 0.1°C ±(0.3% of rdg.+3°C)

• The above accuracy does not include thermocouple accuracy.

• Overcurrent protection : 250 Vrms

93

10

7.2 Accuracy

Frequency Measurement (Voltage measurement func­tion) (FREQ) function

Range Measurement Range Resolution Accuracy

100 Hz 0.500 Hz to 99.999 Hz 0.001 Hz

1 kHz 0.50Hz to 999.99 kHz 0.01 Hz

10 kHz 0.5Hz to 9.9999 kHz 0.1 Hz
100 kHz 1 Hz to 99.999 kHz 1 Hz
200 kHz 10 Hz to 199.99 kHz 10 Hz

±(0.02% of rdg.+3 dgt.)

1
2

• Minimum input frequency: 0.5 Hz (settable Power-On Option)

• Overcurrent prote ction : 250 Vrms

(Voltage Measurement Sensitivity)

Minimum Sensitivity

Input range

50 mV 15 mV 25 mV 20 mV 30 mV

500 mV 35 mV 200 mV 50 mV 80 mV

5 V 0.3 V 0.5 V 0.5 V 0.8 V

50 V 3 V 5 V 5 V 8 V

250 V 30 V - 60 V -

Accuracy of duty cycle a n d pu lse wi d th me a su rement specifications presume 5 V
pulses in the 5 V DC range.

DUTY CYCLE
Measurement range : 0.1% to 99.9% (at DC coupling)

Accuracy : < ±(0.3% / kHz+0.3% of f.s.)
PULSE WIDTH

Measurement range : 0.1 ms to 1999 ms
Accuracy : < ±(0.2% of rdg.+3 dgt.)
The specified me as ur ement range is determined by the signal f re quency when
the pulse width is greater than 10 μs.

(rms sine wave)

1 Hz to 100 kHz >100 kH z < 20 kHz 20 kHz to 200 kHz

5% to 95% (at AC coupling)

Trigger level (DC coupling)

3
4
5
6
7
8
9

(Current Measurement Sensitivity)

Minimum Sensitivity

Input range

50 mA 2.5 mA

500 mA 25 mA

(rms sine wave)

30 Hz to 20 kHz

11

94

7.2 Accuracy