HIOKI 3238, 3239, 3239-01, 3237, 3238-01 User manual

INSTRUCTION MAN UAL

For...は専用機種。複数の場合は「/」で区切る。不要の場合はとる。

形名を入力。 複数の場合は「/」で区切る。

3237
3238
3239

品名を入力。

DIGITAL HiTESTER

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Contents

Introduction i
Inspection
Safety Notes
Notes on Use
Chapter Summary

vi

Chapter 1 Overview 1

1.1 Product Overview 1

1.2 Major Features

1.3 Names and Functions of Parts

1.3.1 Front Panel 2

1.3.2 Rear Panel 6

Chapter 2 Installation and Preparation 7

2.1 Power Supply and Ground Connection 7

2.2 Test Lead/Clamp Sensor Connection

i
ii
v

1
2

8

2.3 Power On/Off

2.4 Selection of Power-supply Frequency

10

Chapter 3 Measurement Procedure 11

3.1 Voltage Measurement 12

3.1.1 DC Voltage Measurement 12

3.1.2 AC Voltage Measurement 12

3.2 2-Terminal Resistance Measurement 13

3.2.1 Resistance Measurement (2-Terminal) 13

3.2.2 Low-power Resistance Measurement (2-Terminal) 14

3.3 4-Terminal Resistance Measurement 15

3.3.1 Resistance Measurement (4-Terminal, on 3239 only) 15

3.3.2 Low-power Resistance Measurement
(4-Terminal, on 3239 only) 16

3.4 Continuity Test 16

3.5 Diode Test

17

9

3.6 Frequency Measurement (3238/39)

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18

3.7 Current Measurement (3238/39) 19

3.7.1 DC Current Measurement 19

3.7.2 AC Current Measurement 19

3.8 Clamp Current Measurement 20

3.8.1 DC Clamp Current Measurement
(9277/9278/9279/3284/3285) 21

3.8.2 AC Clamp Current Measurement 22

Chapter 4 Basic Functions 23

4.1 Selection of Measurement Range 23

4.2 Switching of Sampling Period

4.3 Zero Adjust function

4.4 Average function

4.5 Trigger Function

4.5.1 Setup for Trigger mode 26

4.5.2 External Trigger 26

4.5.3 Trigger Delay 27

4.5.4 Trigger System 29

23
24
25
26

Chapter 5 Other Functions 31

5.1 Comparator Function 31

5.2 Comparator Buzzer Sound

5.3 Panel Save Function

5.4 Panel Load Function

5.5 Key Operation Sound

5.6 Key Lock Function

34
35
36
37
38

5.7 Remote Function

5.8 System Reset

5.9 Measurement States and Effective Keys

39
40
42

Chapter 6 External Control Terminal/

External output terminal 43

6.1 Explanation of Signal Wires 44

6.2 Timing Chart

6.3 Internal Circuit Configuration

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46
48

Chapter 7 RS-232C Interface 49

7.1 Preparing for Data Transfer 51

7.2 Communication

7.3 Command Code Table

7.3.1 Common Command 62

7.3.2 Specific Command 63

53
62

7.4 Command Reference 69

7.4.1 Explanation of Command Reference 69

7.4.2 Common Command Messages 70

7.4.3 Specific Command Messages 75

7.5 Initialized Item List 99

7.6 Notes on RS-232C Interface

99

7.7 Compatibility with the ADVANTEST Digital
Multimeter

7.8 Sample Program

100
102

Chapter 8 GP-IB Interface(3237-01/3238-01/3239-01) 103

8.1 Preparing for Data Transfer 105

8.2 Communication

8.3 GP-IB Command

8.4 Notes of the GP-IB

107
116
117

Chapter 9 Printer Interface 119

9.1 Setup for Interface 120

9.2 Setup for Printer

9.3 Printer Connection Method

9.4 Sample Prints

121
123
124

Chapter 10 Specifications 125

10.1 General Specifications 125

10.2 Accuracy

10.2.1 Accuracy of the 3237 127

10.2.2 Accuracy of the 3238 133

127

10.2.3 Accuracy of the 3239 140

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Chapter 11 Maintenance and Service 147

11.1 A-Terminal Fuse Replacement (3238/39) 147

11.2 Power Supply Fuse Replacement

11.3 Cleaning

11.4 Service

148
149
150

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p

i

Introduction

Thank you for purchasing the HIOKI "3237, 3238, 3239 DIGITAL
HiTESTER."

To obtain maximum performance from the product, please read this manual

first, and keep it handy for future reference.

Inspection

When you receive the product, 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.

NOTE

Accessories

9170-10 TEST LEAD 1
Instruction Manual 1
Power cord 1
Spare fuse 0.5 A (for 100 V, 120 V), 0.25 A (for 220 V, 240 V)

2 A (for the 3238/39) 1

Before using the product 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.

Before using the product, make sure that the insulation on the probes is undamaged
and that no bare conductors are improperly exposed. Using the product in such
conditions could cause an electric shock, so contact your dealer or Hioki

resentative for repair.

re

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Safety Notes

This instrument is designed to comply with IEC 61010 Safety Standards,

WARNING

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. 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.

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

The symbol printed on the product indicates that the user should

refer to a corresponding topic in the manual (marked with the
symbol) before using the relevant function.

In the manual, the symbol indicates particularly important

information that the user should read before using the product.
Indicates that dangerous voltage may be present at this terminal.
Indicates a double-insulated device.
Indicates a fuse.
Indicates AC (Alternating Current).
Indicates DC (Direct Current).
Indicates both DC (Direct Current) and AC (Alternating Current).
Indicates a grounding terminal.
Indicates the ON side of the power switch.
Indicates the OFF side of the power switch.

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

Indicates that incorrect operation presents an extreme hazard that

DANGE R

could result in serious injury or death to the user.

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

WARNING

CAUTION

NOTE

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

Advisory items related to performance or correct operation of the
product.

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iii

Overvoltage Categories

This product conforms to the safety requirements for CAT II measurement
products.
To ensure safe use of measurement, IEC 60664 establishes safety level
standards for different locations, classified as CAT I through CAT IV, and
called overvoltage categories. These are defined as follows.

CAT I

Secondary electrical circuits that are connected
to a wall outlet through a transformer or similar
device.

CAT II

CAT III

CAT IV

Primary electrical circuits in equipment connected to
a wall outlet via a power cord (portable tools,
household appliances, etc.)

Primary electrical circuits of heavy equipment (fixed
installations) connected directly to the distribution
panel, and feeders between the distribution panel
and outlets.

The circuit from the service drop to the service
entrance, then to the power meter and to the primary
overcurrent protection device.

Higher-numbered categories correspond to electrical environments with
greater momentary energy, so a measurement device designed for CAT III
environments can endure greater momentary energy than a device designed
for CAT II. Use of a lower category product in a higher category
environment could result in a severe accident and must be carefully avoided.

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iv

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Accuracy

The specifications in this manual include figures for "measurement accuracy"
when referring to digital measuring instruments, and for "measurement
tolerance" when referring to analog instruments.

f.s.

rdg.

dgt.

(maximum display or scale value, or length of scale)
Signifies the maximum display (scale) value or the length of the scale
(in cases where the scale consists of unequal increments or where the
maximum value cannot be defined).
In general, this is the range value (the value written on the range
selector or equivalent) currently in use.

(displayed or indicated value)
This signifies the value actually being measured, i.e., the value that is
currently indicated or displayed by the measuring instrument.

(resolution)
Signifies the smallest display unit on a digital measuring instrument,
i.e., the value displayed when the last digit on the digital display is
"1".

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v

Notes on Use

In order to ensure safe operation and to obtain maximum performance from
the unit, observe the cautions listed below.

To avoid electric shock, do not allow the product to get wet, and do

WARNING

not use it when your hands are wet.
Do not use the product where it may be exposed to corrosive or
combustible gases. The product may be damaged or cause an
explosion.
To avoid electric shock, be sure to connect the protective ground
terminal to a grounded conductor.

CAUTION

Do not store or use the product where it could be exposed to direct
sunlight, high temperature or humidity, or condensation. Under such
conditions, the product may be damaged and insulation may deteriorate so
that it no longer meets specifications.
This product is not designed to be entirely water- or dust-proof. To avoid
damage, do not use it in a wet or dusty environment.
Do not use the product near a device that generates a strong
electromagnetic field or electrostatic charge, as these may cause
erroneous measurements.
To avoid damage to the product, protect it from vibration or shock during
transport and handling, and be especially careful to avoid dropping.

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vi

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Chapter Summary

Chapter 1 Overviews

Provides a product overview and gives the names and describes the functions
of the component parts.

Chapter 2 Installation and Preparation

Describes ways to turn on power, connect test leads, and set up the power­supply frequency.

Chapter 3 Measurement Procedure

Describes basic measurements.

Chapter 4 Basic Functions

Describes basic functions such as range setup, sampling setup, and so on.

Chapter 5 Other Functions

Describes other functions, including comparator setup, Load Save function,
and so on.

Chapter 6 External Control Terminal/ External output terminal

Describes external control executed via the external control terminal and
external output terminal.

Chapter 7 RS-232C Interface

Describes external control executed via the RS-232C interface.

Chapter 8 GP-IB Interface

Describes external control executed via the GP-IB interface.

Chapter 9 Printer Interface

Describes output to the optional 9442 PRINTER.

Chapter 10 Specifications

Describes measurement methods designed to achieve maximum performance
from the unit.

Chapter 11 Maintenance and Service

Describes general specifications and measurement ranges.

Appendix

Describes services and options for this unit.

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1

Chapter 1

1

2

1.1 Product Overview

In addition to measuring functions for DC voltages, AC voltages, resistances,
DC currents*, AC currents*, and frequencies*, the 3237/38/39 Digital High
Tester comes with a comparator function that is especially useful for line
use. The GP-IB interface (3237-01/3238-01/3239-01), RS-232C interface,
and the units comparator output permits use of the unit across a wide range
of applications, such as parts selection and data acquisition.
*: On the 3238/39.

1.2 Major Features

Overview

3

4

5

6

7

8

9

(1) High-speed measurement and fast OK/NG determination

Allows reduced tact time for the line in high-speed measurements and fast
OK/NG determinations. Thirty different setup conditions for the main unit
can be saved, including comparator conditions. This makes it possible to
determine OK or NG for many sample types being measured with a single
unit.

(2) Low-power resistance measurement

The unit enables low-power resistance measurement, with low measurement
current and open voltage, to minimize the potential for degraded sample
characteristics.

(3) A versatile array of interfaces

The unit comes equipped with a GP-IB interface (3237-01/3238-01/3239-01),
RS-232C interface, external output terminal, and external control terminal.
Through these interfaces, data can be exchanged with a computer or
sequencer.

10

11

12

13

14

A

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1.2 Major Features

2

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1.3 Names and Functions of Parts

1.3.1 Front Panel

V

Ω

CLAMP

terminal

COM
terminal

3237

LED
Display

Power switch

V

Ω

CLAMP

terminal

COM
terminal

A-terminal

SENSE terminal

V

Ω

CLAMP

terminal

COM
terminal

Operation keys

3238

LED
Display

Power swtich

Operation keys

3239

LED
Display

A-terminal

Operation keys

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Power swtich

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3

Operation keys

V
V

Ω

LPΩ

SHIFT

+

Hz

A
A

COMP

M.TRIG

LOAD
SAVE

LOCA L

Selects the DC voltage measurement function.
Selects the AC voltage measurement function.
Selects the 2-terminal resistance measurement function.
Selects the low-power 2-terminal resistance measurement

function.
Selects the continuity test function.
Selects the diode test function.

Selects the frequency measurement function. (3238/39)
Selects the DC current measurement function. (3238/39)
Selects the AC current measurement function. (3238/39)
Turns the comparator ON or OFF.
Applies a manual trigger.
Recalls saved information.
Saves the current status.
Clears the remote status.

1

2

3

4

5

6

7

SMPL

SHIFT

ENT

AUTO

SHIFT+COMP

INT.TRIG

SHIFT+M.TRIG

0ADJ

SHIFT+LOAD

LOCK

SHIFT+LOCA L

AVE

SHIFT+SMPL

CLAMP

SHIFT

V

+

Switches the sampling period.
Pressed before shift operation.
Confirms a setting.
Selects Auto Range.
Used to move the cursor indicated by flashing numbers or

characters on a setup screen.
Used to increment or decrement the currently flashing value.

These buttons are also used to edit character strings in
various setup screens, and to switch ranges when a
measurement is performed.

Turns the comparator buzzer ON or OFF.

Applies an internal trigger.

Subtracts the offset of a measurement value.

Locks the keys.

Sets the mean of the measurement values.

Selects the DC current measurement function that uses the
clamp sensor.

8

9

10

11

12

13

14

CLAMP

SHIFT

+

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Selects the AC current measurement function that uses the
clamp sensor.

V

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1.3 Names and Functions of Parts

A

4

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Operation keys

4WΩ

SHIFT

+

4WΩ

SHIFT

+

MENU

SHIFT+ENT

Terminals

COM

V

Ω

CLAMP

A

SENSE

Switch

POWER

Ω

LPΩ

Selects the 4-terminal resistance measurement function.
(3239 only)

Selects the low-power 4-terminal resistance measurement
function. (3239 only)

Displays the menu screen for selection of the clamp sensor,
interfaces, power-supply frequency, etc.

The test lead (black) is connected here for various
measurements.

The test lead (red) is connected here to measure voltages,
resistances, frequencies, diodes, or clamp currents, or to
conduct a continuity test.

The test lead (red) is connected here to measure currents.
(3238/39)

The test lead (SENSE) is connected here to measure
resistance (4-terminal resistance measurement). (3239)

Turns the power ON ( )orOFF( ).

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5

1

2

FUNCTION

LED display

LP

CLAMP

N
O

I
T

C
N
U

F

4W
2W

0ADJ

M.TRIG

AUTO

COMP

S
U

T
A
T
S

P
M
O

C

SET

FAST

MED

SLOW

AVE

LOCK

RMT

SHIFT

Hi
IN
Lo

COMP

STATUS

Lights up when a low-power resistance measurement is performed.
Lights up when a DC measurement is performed.
Lights up when a current measurement is performed using the clamp

sensor.
Lights up when a AC measurement is performed.
Lights up when a diode test is conducted.
Lights up when a continuity test is conducted.
Lights up when a 4-te rm ina l resista nc e measur ement is perfo rmed. (3239)
Lights up when a 2-te rm ina l resista nc e measur ement is perfo rmed. (3239)
Lights up when a measurement is in progress with the Zero Adjust

function activated.
Lights up when Manual Trigger is selected.
Lights up when Auto Range is selected.
Lights up when the comparator is in use.
Lights up together with COMP when a comparator threshold is set.
Lights up when FAST is selected for the sampling period.
Lights up when MEDIUM is selected for the sampling period.
Lights up when SLOW is selected for the sampling period.
Lights up when the comparator buzzer is turned ON.
Lights up when the Average function is in use.
Lights up when the Key Lock is active.
Lights up when remote control is underway through the RS-232C or GP-

IB interface.
Lights up when
Displays the comparator result.

: Lights up if the measurement value exceeds the upper-limit value.

Hi

: Lights up if the measurement value remains between the upper-

IN

limit and lower-limit values.

: Lights up if the measurement value is smaller than the lower-limit

Lo

value.

SHIFT

is pressed.

3

4

5

6

7

8

9

10

11

12

13

14

A

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1.3 Names and Functions of Parts

6

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1.3.2 Rear Panel

Power/fuse ratings

3237

Inlet

Stand

RS-232C interface

Power/fuse ratings

3238
3239

External I/O

Inlet

GP-IB interface

Stande

GP-IB interface

RS-232C interface

Power/fuse ratings

NOTE

Inlet

ExternalI/O

Be sure not to bear down too hard on the top of the product when it is tilted
upwards. Doing so may damage the stand.

RS-232C interface

The power cord is connected here.
The GP-IB interface is connected here.
The RS-232C interface is connected here.
This is an external output terminal/external control terminal.
Indicates the power ratings and the fuse currently in use.

3237-01
3238-01
3239-01

External I/O

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7

Chapter 2

1

2

Installation and Preparation

2.1 Power Supply and Ground Connection

Before turning the product on, make sure the source voltage matches

WARNING

that indicated on the product's power connector. Connection to an
improper supply voltage may damage the product and present an
electrical hazard.
To avoid electric shock and ensure safe operation, connect the power
cable to a grounded (3-contact) outlet.

. Confirm the power switch is OFF.

1

. Make sure the source voltage matches that indicated on the product's

2

power connector and connect the power cord supplied to AC inlet on the
rear panel.

3

4

5

6

7

8

9

10

. Plug in the power cord. Insert the plug directly into the outlet.

3

11

12

13

14

A

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2.1 Power Supply and Ground Connection

8

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2.2 Test Lead/Clamp Sensor Connection

The terminals do not have sufficient spatial isolation. To avoid

WARNING

electrocution, observe the following precautions.

Connect test leads to the terminals only after shutting off the line
power.
Note that hazardous voltage may be present at the V
CLAMP terminal when using the A-terminal. Be careful to avoid
touching the V
Note that hazardous voltage may be present at the A-terminal when
using the V

careful to avoid touching the A-terminal.
When connecting the clamp-on sensor, should the metallic part of the
sensor, exposed while the clamp is open, touch the two wires of the
line, or if the sensor is used on a bare conductor, may result in a short
circuit or electrocution.

Ω

Ω

CLAMP terminal and SENSE terminal.

CLAMP terminal and SENSE terminal. Be

Ω

3237/38

3238

(1) Voltage measurement/ 2-terminal resistance measurement/

continuity test/ diode test/ frequency measurement

3239

. Disconnect the 9170-10 TEST LEAD

1

from the sample being measured.

. Connect the black lead to the COM

2

terminal and the red lead to
the V Ω CLAMP terminal.

Black

Red

9170-10 TEST LEAD

Black

Red

(2) Current measurement

3239

. Disconnect the 9170-10 TEST LEAD

1

from the sample being measured.

. Connect the black lead to the COM

2

terminal and the red lead to the A-

Black

Red

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2.2 Test Lead/Clamp Sensor Connection

9170-10 TEST LEAD

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Black

Red

terminal.

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9

3237/38

Black

(3) Clamp current measurement

3239

Red

Clamp sensor connector

(4) 4-terminal resistance measurement

3239

Black

9287-10 CLIP TYPE LEAD

Black

Red

Red

. Disconnect the clamp sensor from the

1

sample being measured.

. Connect the black lead to the COM

2

terminal and the red lead to
the V Ω CLAMP terminal.

. Disconnect the clamp sensor from the

1

sample being measured.

. Connect 4-terminal test leads like

2

those of the 9287-10 as shown in the
drawing. Align the triangular mark on
the red lead with the red triangular
mark on the chassis, and the triangular
mark on the black lead with the black
triangular mark on the chassis.

1

2

3

4

5

6

7

8

2.3 Power On/Off

(1) How to turn on power

Turn on ( ) the power switch on the front panel.
All the LEDs on the front panel will light to indicate the model, software
version and power-supply frequency of the unit. The unit readies itself for
measurement.
After power is turned on, the unit is set to the same measurement conditions
in effect when the unit was switched off.

NOTE

Allow the unit to warm up for 60 minutes before starting measurement.

(2) How to turn off power

Turn off ( ) the power switch on the front panel.
The measurement conditions will be saved.

9

10

11

12

13

14

A

NOTE

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As long as the unit is in normal measurement or comparator execution modes, the
various conditions will be saved even in the event of a power blackout.

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2.3 Power On/Off

10

y

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2.4 Selection of Power-supply Frequency

.Press

1

. Pressing

2

.Press to display the power-supply frequency setup screen.

3

. Pressing causes the frequency power-supply currently set to flash.

4

SHIFT

."

ENT

" lights up on the display.

SHIFT

opens the menu screen for entering various settings.

"50": 50 Hz
"60": 60 Hz

.Press to select a power-supply frequency.

5

. Pressing

6

.Press

7

ENT

causes "Fr" to flash.

ENT

again to define your selection.

NOTE

To properly suppress noise, this product must be set to match the power supply

frequency. Before using the product, make sure the power supply frequency selector
is set correctl

, to avoid erroneous readings.

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2.4 Selection of Power-supply Frequency

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11

Chapter 3

1

2

DANGE R

Measurement Procedure

Observe the following precautions to avoid electric shock.

Always verify the appropriate setting of the measuring function before
connecting the test leads.
Disconnect the test leads from the measurement object before
changing the measuring function.
Clamp sensor/ Clamp-on probe/ Test leads should only be connected
to the secondary side of a breaker, so the breaker can prevent an
accident if a short circuit occurs. Connections should never be made
to the primary side of a breaker, because unrestricted current flow
could cause a serious accident if a short circuit occurs.
Do not measure an input in excess of the maximum rated working
voltage and current, as the resulting heat buildup may damage the
product or cause a short-circuit accident.
The maximum rated voltage to ground of the V
terminal is 1000 VAC/DC (CAT I) or 600 VAC/DC (CAT II). Do not apply
any voltage to this terminal exceeding these ratings.
The maximum rated voltage to ground of the COM terminal is 500
VAC/DC (CAT I) or 300 VAC/DC (CAT II). Do not apply any voltage to
this terminal exceeding these ratings.
The maximum rated voltage to ground of the A-terminal is 500
VAC/DC (CAT I) or 300 VAC/DC (CAT II). Do not apply any voltage to
this terminal exceeding these ratings.
The maximum rated voltage to ground of the SENSE terminal is 500
VAC/DC (CAT I) or 300 VAC/DC (CAT II). Do not apply any voltage to
this terminal exceeding these ratings.
To avoid electrical shock, be careful to avoid shorting live lines with
the test leads.

Ω

CLAMP

3

4

5

6

7

8

9

10

11

12

13

14

A

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3.1 Voltage Measurement

The maximum rated working voltage is 1000 VDC/700 VrmsAC (107V

DANGE R

Black

Hz). Attempting to measure voltage in excess of the maximum rating
could destroy the product and result in personal injury or death.

32393237/38

Red

9170-10 TEST LEAD

Black

3.1.1 DC Voltage Measurement

. Make sure that "

1

.Press

2

V

SHIFT

.

･

Check to make sure that the black lead of
the 9170-10 TEST LEAD is connected to
the COM terminal and the red lead to the
V Ω CLAMP terminal.

Red

" does not light on the display.

.Press to select a range. Or press

3

(See 4.1 Selection of Measurement Range.)

.Press

4

SMPL

to select a sampling period.

(See 4.2 Switching of Sampling Period.)

. Connect the test lead to the sample being measured and read the value.

5

3.1.2 AC Voltage Measurement

. Make sure that "

1

.Press

2

.Press to select a range. Or press

3

(See 4.1 Selection of Measurement Range.)

N

L

.Press

4

(See 4.2 Switching of Sampling Period.)

V

SMPL

SHIFT

.

to select a sampling period.

AUTO

to select Auto Range.

" does not light on the display.

AUTO

to select Auto Range.

. Connect the test lead to the sample being measured and read the value.

5

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13

3.2 2-Terminal Resistance Measurement

1

DANGE R

Black

NOTE

Never apply voltage to test leads and SENSE terminal when the
Resistance, Low-power resistance or Continuity Check are selected.
Doing so may damage the product and result in personal injury.
To avoid electrical accidents, remove power from the circuit before
measuring.

32393237/38

Red

9170-10 TEST LEAD

Use a shielded line, such as the 9326, when measuring high resistance.

Black

Red

Check to make sure that the black lead of
the 9170-10 TEST LEAD is connected to
the COM terminal and the red lead to the
V Ω CLAMP terminal.

2

3

4

5

6

7

8

3.2.1 Resistance Measurement (2-Terminal)

. Make sure that "

1

.Press

2

.Press to select a range. Or press

3

(See 4.1 Selection of Measurement Range.)

.Press

4

(See 4.2 Switching of Sampling Period.)

. Performs zero-ajust for the 3237/38/39.

5

(See 4.3 Zero Ajust Function.)

. Connect the test lead to the sample being measured and read the value.

6

Ω

."2W" lights up on the display. (3239)

SMPL

to select a sampling period.

" does not light on the display.

SHIFT

AUTO

9

10

to select Auto Range.

11

12

13

14

A

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14

_____________________________________________________________________________________________

3.2.2 Low-power Resistance Measurement (2-Terminal)

. Make sure that "

1

.Press

2

.Press to select a range. Or press

3

LPΩ

."2W"(3239) and "LP" lights up on the display.

" does not light on the display.

SHIFT

AUTO

to select Auto Range.

(See 4.1 Selection of Measurement Range.)

.Press

4

SMPL

to select a sampling period.

(See 4.2 Switching of Sampling Period.)

. Performs zero-ajust for the 3237/38/39.

5

(See 4.3 Zero Ajust Function.)

. Connect the test lead to the sample being measured and read the value.

6

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15

3.3 4-Terminal Resistance Measurement

1

DANGE R

NOTE

Never apply voltage to test leads and SENSE terminal when the
Resistance, Low-power resistance or Continuity Check are selected.
Doing so may damage the product and result in personal injury.
To avoid electrical accidents, remove power from the circuit before
measuring.

3239

The four terminals of the 9287-10 CLIP TYPE
LEAD
Verify that all four terminals (SOURCE+,
SOURCE-, SENSE+, and SENSE-) are
connected. Also verify that the triangular mark

Black

9287-10 CLIP TYPE LEAD

Use a shielded line, such as the 9326, when measuring high resistance.

Red

on the red lead is aligned with the red
triangular mark on the chassis, and that the
triangular mark on the black lead is aligned
with the black triangular mark on the chassis.

2

3

4

5

6

7

8

3.3.1 Resistance Measurement (4-Terminal, on 3239 only)

SHIFT

."

Ω

."4W" lights up on the display.

SMPL

to select a sampling period.

" lights up on the display.

SHIFT

Rx

.Press

1

.Press

2

.Press

3

(See 4.2 Switching of Sampling Period.)

. Performs zero-ajust for the 3237/38/39.

4

(See 4.3 Zero Ajust Function.)

. Connect the test lead to the sample being measured and read the value.

5

9

10

11

12

13

14

When clipping a thin line
Clip the line at the tip,
serrated part of the jaws.

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When clipping a thick line
(Clip the line at the deep, non­serrated part of the jaws.)

3.3 4-Terminal Resistance Measurement

A

16

_____________________________________________________________________________________________

3.3.2 Low-power Resistance Measurement
(4-Terminal, on 3239 only)

.Press

1

.Press

2

.Press

3

(See 4.2 Switching of Sampling Period.)

. Performs zero-ajust for the 3237/38/39.

4

(See 4.3 Zero Ajust Function.)

. Connect the test lead to the sample being measured and read the value.

5

NOTE

When measurement is performed using the low-power resistance measurement
function or continuity test function, the measurement values may not be stable,
because the measurement current in this measurement mode is lower than for
normal resistance measurement.

3.4 Continuity Test

SHIFT

."

LPΩ

."4W"and"LP" lights up on the display.

SMPL

to select a sampling period.

SHIFT

" lights up on the display.

NOTE

. Make sure that "

1

.Press .

2

. Connect the test lead to the sample being measured.

3

" does not light on the display.

SHIFT

The buzzer will beep if the resistance value is below 50 ohms.

When measurement is performed using the low-power resistance measurement
function or continuity test function, the measurement values may not be stable,
because the measurement current in this measurement mode is lower than for
normal resistance measurement.

The resistance measurement and low-power resistance measurement will display
values that include the resistance value of the test lead. Use the Zero-Adjust
function to exclude this resistance value.

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17

3.5 Diode Test

Never apply voltage to test leads when the Diode test is selected. Doing

DANGE R

so may damage the product and result in personal injury.
To avoid electrical accidents, remove power from the circuit before
measuring.

32393237/38

Check to make sure that the black lead of
the 9170-10 TEST LEAD is connected to
the COM terminal and the red lead to the
V Ω CLAMP terminal.

Black

Red

9170-10 TEST LEAD

.Press

1

.Press .

2

.Press

3

SHIFT

SMPL

."

Black

SHIFT

to select a sampling period.

Red

" lights up on the display.

(See 4.2 Switching of Sampling Period.)

. Connect the test lead to the sample being measured and read the value.

4

A normal silicon diode indicates a forward voltage of 0.4 to 0.7 V. In the
reverse direction, "OF" will light.

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18

_____________________________________________________________________________________________

3.6 Frequency Measurement (3238/39)

The maximum rated working voltage is 600 VDC/700 VrmsAC (107V･Hz).

DANGE R

Attempting to measure voltage in excess of the maximum rating could
destroy the product and result in personal injury or death.

3238

Black

NOTE

3239

Check to make sure that the black lead of
the 9170-10 TEST LEAD is connected to
the COM terminal and the red lead to the
V Ω CLAMP terminal.

Red

9170-10 TEST LEAD

.Press

1

.Press to select an attenuator range.

2

.Press

3

Hz

SMPL

Black

.

to select a sampling period.

Red

(See 4.2 Switching of Sampling Period.)

. Connect the test lead to the sample being measured and read the value.

4

Press to set a range for the attenuator circuit (voltage divider circuit).

Input sensitivity is approximately 10% of the selected attenuator range. Check
the signal level with the
Example: The frequency of a 10 V signal can be measured in the attenuator range
of 2 V or 20 V, but not in the attenuator range of 200 V or 700 V.

V function before measuring the frequency.

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19

3.7 Current Measurement (3238/39)

The maximum rated working current is 2 ADC/AC. Attempting to input

DANGE R

current in excess of the maximum rating could destroy the product
and result in personal injury or death.
Never apply voltage to A-terminal. Doing so may damage the product
and result in personal injury. To avoid electrical accidents, remove
power from the circuit before measuring.

3238

Red

Black

9170-10 TEST LEAD

3239

Black

Red

3.7.1 DC Current Measurement

.Press

1

.Press to select a range. Or press

2

(See 4.1 Selection of Measurement Range.)

.Press

3

(See 4.2 Switching of Sampling Period.)

A

SMPL

.

to select a sampling period.

Check to make sure that the black lead of
the 9170-10 TEST LEAD is connected to
the COM terminal and the red lead to the
A-terminal.

AUTO

to select Auto Range.

. Connect the test lead to the sample being measured and read the value.

4

NOTE

After measuring large current, the terminal may become hot, producing
thermoelectric power that may cause incorrect measurement results.
Therefore, after measuring large current, wait a moment before measuring
again.

3.7.2 AC Current Measurement

.Press

1

.Press to select a range. Or press

2

(See 4.1 Selection of Measurement Range.)

.Press

3

(See 4.2 Switching of Sampling Period.)

. Connect the test lead to the sample being measured and read the value.

4

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A

SMPL

.

to select a sampling period.

AUTO

to select Auto Range.

3.7 Current Measurement (3238/39)

20

_____________________________________________________________________________________________

3.8 Clamp Current Measurement

To avoid short circuits and potentially life-threatening hazards, never

DANGE R

attach the clamp to a circuit that operates at more than the maximum
rated voltage, or over bare conductors.

Before using the clamp sensor, carefully read the supplied instruction
manual.

NOTE

3237, 3238

Black

Red

Clamp sensor connector

The Auto Range function cannot be used in clamp current measurement.

3239

Check to make sure that the black lead of
the clamp sensor is connected to the
COM terminal and the red lead to the V

Ω CLAMP terminal.

Black

Red

Selection of the clamp sensor

.Press

1

. Pressing

2

.Press to display the clamp sensor setup screen.

3

SHIFT

."

ENT

" lights up on the display.

SHIFT

displays the menu screen.

. Pressing causes the currently selected clamp sensor model to flash.

4

.Press to select a clamp sensor.

5

. Pressing

6

. Another press to

7

NOTE

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If you plan to use the 9081 External Shunt Resistor, Class 1.0, specify 9278 on
the clamp sensor selection screen. The value can be read directly as a current
value.

The available clamp sensors as of Feb. 28, 2001, are 9010/9018/9132.

Accuracy cannot be guaranteed if you use clamp sensor unit models
9270/9271/9272/9277/9278/9279/3283/3284/3285.

ENT

causes "CL" to flash.

ENT

confirms your selection.

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21

3.8.1 DC Clamp Current Measurement

.Press

1

.Press

2

.Press to select a clamp sensor range.

3

.Press

4

(See 4.2 Switching of Sampling Period.)

. Clip the clamp around one of wires of the circuit to be measured and read

5

the value.

Source side

SHIFT

SMPL

."

V

.

" lights up on the display.

SHIFT

to select a sampling period.

Load side

(9277/9278/9279/3284/3285)

Corresponds the current
direction indication to
the direction of current
flow.

NOTE

The DC clamp current measurement function cannot be used if a clamp sensor

other than 9 277/9278/9279/3284/3285 is selected.

Auto Range cannot be used.

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22

_____________________________________________________________________________________________

3.8.2 AC Clamp Current Measurement

.Press

1

.Press

2

.Press to select a clamp sensor range.

3

SHIFT

."

V

.

SHIFT

" lights up on the display.

(Clamp sensor: 9010/9018/9132/3283/3284/3285)
(See 4.1 Selection of Measurement Range.)

.Press

4

SMPL

to select a sampling period.

(See 4.2 Switching of Sampling Period.)

. Clip the clamp around one of wires of the circuit to be measured and read

5

the value.

Load side

Source side

Corresponds the current
direction indication to
the direction of current
flow.

NOTE

Auto Range cannot be used.

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23

Chapter 4

1

2

Basic Functions

4.1 Selection of Measurement Range

(1) Manual Range

Press to select a range.

(2) Auto Range

Press
automatically selects an optimum measurement range.
Press
range.

NOTE

AUTO

AUTO

If the Zero-Adjust function is in use, the unit will determine a suitable range

suited for the input signal level a nd indicate the value that results after
subtracting the Zero-Adjusted value from the measurement data.

Auto Range cannot be used with the clamp current measurement function or

frequency measurement function.

while Manual Range is selected. "

once again to restore Manual Range with the currently selected

" lights up and the unit

AUTO

3

4

5

6

7

8

9

10

4.2 Switching of Sampling Period

This unit allows you to change the sampling period in 3 steps: FAST,
MEDIUM, and SLOW. The longer the sampling period, the better the
measurement accuracy.

11

12

13

.Press

1

. Repeatedly press

2

settings in the order "

NOTE

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When FAST is chosen for the sampling period, the unit performs a self-

calibration

In a continuity test, only FAST can be selected for the sampling period.

*: Self-calibration: 3 237/38/39 automatically self-correct offset and gain.

SMPL

.

SMPL

*

every 30 minutes. Each self-calibration takes approximately 65 ms.

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to cycle through the available sampling period

FAST

"→"

MEDIUM

"→"

SLOW

4.2 Switching of Sampling Period

".

14

A

24

_____________________________________________________________________________________________

4.3 Zero Adjust function

The Zero-Adjust function displays the computed result after subtracting the
Zero-Adjusted value (reference value) from the measurement data.
The function can be used to cancel an offset, such as the resistance of the
test lead, or to check the deviation from the reference value.

. Measure the sample that you want Zero-Adjusted.

1

.Press

2

.Press

3

SHIFT

LOAD

."

SHIFT

."

" lights up on the display.

" lights up on the display, and the unit loads the

0ADJ

current measurement value as the Zero-Adjusted value.
The display shows "Measurement value - Zero-Adjusted" value.

Zero-Adjust Procedure When Using the 4-terminal test leads (3239)

SENSE

SOURCE

SENSE

SOURCE

Correct connection

Bring the "v" marks together
at the same position.

SENSE

SOURCE

SOURCE

Wrong connection

Clearing the Zero-Adjust function

SENSE

SHIFT

LOAD

."

SHIFT

" lights up on the display.

clears the Zero-Adjust function.

NOTE

.Press

1

. Pressing

2

The Zero-Adj usted value is saved as an absolute value independent of a specific

range.
Example:
When 1.234 Ω is measured in the 200 Ω range and then Zero-Adjusted, 1.234 Ω
is also subtracted from the value measured in the 2000 Ω range before being
displayed.

In the case of an overload ("OF" displayed), the error message "

Err.002

"is

displayed. The Zero-Adjust function is unavailable under these conditions.
A Zero-Adjusted value can be set for each function.
If a value is not covered by the range of -199999 count≦(Measurement value -

Zero-Adjusted value)≦+199999 count, "

" is displayed.

OF

The Zero-Adjust function cannot be used with the continuity test function, diode

test function, or frequency measurement function.

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25

4.4 Average function

The Average function outputs a mean value after averaging measurement
values. This function allows you to minimize the deviation of measurement
values.
The averaging can be set to 2 to 100 measurements.

1

2

3

NOTE

.Press

1

.Press

2

screen.

.Press to select the number of averaged measurements.

3

Press the simultaneously to clear the set value (002 times).

.Press

4

measurement is enabled.

Clearing the Average function

.Press

1

. Pressing

2

The Average function cannot be used with the continuity test function.

SHIFT

SMPL

ENT

SHIFT

SMPL

."

to display the number of averaged measurements setup

."

."

" lights up on the display.

SHIFT

" lights up on the display, and averaging

AVE

" lights up on the display.

SHIFT

clears the Average function.

4

5

6

7

8

9

Eliminating power line noise

Measurements are more consistent when the sampling is synchronized to the
power line cycle. However, the measurement period of 3.33 ms of the FAST
sampling is not synchronized to the power line cycle (except for some
functions and ranges).
To ensure the most consistent measurement values with "
recommend the following settings:

Power-supply

frequency

Number of averaged

measurements

These settings synchronize the measurement time with the sampling period
FAST to the power line cycle to ensure consistent and reliable
measurements.

6 x n measurements 5 x n measurements n: 1,2,3,

50 Hz 60 Hz

FAST

", we

10

11

12

13

14

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4.4 Average function

26

_____________________________________________________________________________________________

4.5 Trigger Function

4.5.1 Setup for Trigger mode

The following two types of Trigger modes are available:

(1) Internal Trigger

Continuous measurement is performed with an automatically generated
internal trigger.

.Press

1

.Press

2

M.TRIG

Trigger mode is activated.

(2) External Trigger

Measurement is performed with a trigger applied externally or manually.
Press

M.TRIG

is activated.

NOTE

External Trigger mode is inactive when the continuity test function is used.

4.5.2 External Trigger

The following three types of External Trigger are available:

(1) Applied through the front panel

SHIFT

."

."

SHIFT

."

M.TRIG

M.TRIG

" lights up on the display.

" is no longer lit on the display, and Internal

" lights up on the display, and External Trigger mode

Pressing

M.TRIG

on the front panel causes the unit to perform a single

measurement.

(2) Applied through EXT I/O

When a pulse is applied to the TRIG terminal of the EXT I/O connector on
the rear panel, the unit performs a single measurement. (See 6.1 Explanation
of Signals.)

(3) Applied through the interface

When the ∗TRG command is issued through the interface, the unit performs
a single measurement.

NOTE

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4.5 Trigger Function

When Internal Trigger remains active, all inputs through the EXT I/O connector and
the ∗TRG command are ignored.

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27

4.5.3 Trigger Delay

1

The delay time from the application of a trigger signal until the start of
measurement is set. If this function is in use, measurement begins when the
measurement values have stabilized, even if a trigger is applied immediately
following the connection of the sample.
The following two types of trigger delay are available:

(1) Auto Delay

The unit automatically sets a delay time.

.Press

1

. Pressing

2

.Press to display the trigger delay setup screen.

3

. Pressing causes the currently set trigger delay to flash.

4

"

AUt

"

SEt

SHIFT

."

SHIFT

ENT

displays the menu screen.

": Auto delay
": Manual delay

" lights up on the display.

2

3

4

5

6

7

8

.Press to select auto delay ("

5

. Pressing

6

.Press

7

Wait Times of Auto Delay

DCV 3ms 3ms 3ms
ACV 500 ms 800 ms 1.5 s
DCA 3ms 3ms 3ms
ACA 500 ms 800 ms 1.5 s

Ω

LPΩ 2to20kΩ range 3ms 3ms 3ms

Hz 10 ms 10 ms 10 ms

200 Ω to 200 kΩ range 3ms 3ms 3ms
2MΩ range 20 ms 20 ms 20 ms
20 MΩ range 100 ms 100 ms 100 ms
100 MΩ range 500 ms 500 ms 500 ms

2MΩ, 200 kΩ range 20 ms 20 ms 20 ms

ENT

causes "

ENT

again to define your selection.

" to flash.

dLy

").

AUt

FAST MEDIUM SLOW

9

10

11

12

13

14

A

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4.5 Trigger Function

28

_____________________________________________________________________________________________

(2) Manual Delay

Any desired delay time can be set.
The trigger delay time can be set from 0.000 to 9.999 s in increments of 1
ms.

.Press

1

. Pressing

2

.Press to display the trigger delay setup screen.

3

. Pressing causes the currently set trigger delay to flash.

4

"

AUt

"

SEt

.Press to select manual delay ("

5

. Pressing

6

SHIFT

."

SHIFT

ENT

displays the menu screen.

": Auto delay

": Manual delay

ENT

causes the values indicating the trigger delay time to

" lights up on the display.

").

SEt

flash.

. Set a trigger delay time by pressing .

7

. Pressing

8

.Press

9

ENT

causes "

ENT

again to define your selection.

" to flash.

dLy

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29

4.5.4 Trigger System

The trigger system functions as described further below, depending on the
setting for the Continuous trigger state (
Trigger Source (

:TRIGGER:SOURCE

"Specific Command Messages."

:INITIATE:CONTINUOUS

) or for the

). For trigger commands, refer to 7.4.3

Continuous trigger state

:INITIATE:CONTINUOUS

ON OFF*

NOTE

Trigger source

:TRIGGER:SOURCE

IMMEDIATE

Internal trigger state:
Pressing

M.TRIG

SHIFT

+

initiates this

Trigger is made on:
INITIATE (or :READ?)

state.
Free run.

EXTERNAL

External trigger state:
Pressing

M.TRIG

from
free run initiates this
state.
Trigger is made through
the TRIG terminal or

M.TRIG

with

.

The unit enters Wait
state for trigger on
:INIT IATE (or
:READ?).

Trigger is made through
the TRIG terminal or
when

*: Can only be set by a remote command.

If the unit is switched off while it in

:INITIATE:CONTINUOUS ON/:TRIGGER:SOURCE EXTERNAL

switched on.

:INITIATE:CONTINUOUS OFF

M.TRIG

is pressed.

, it will be set to

when the unit is

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4.5 Trigger Function

30

_____________________________________________________________________________________________

:INITIATE:CONTINUOUS ON
:TRIGGER:SOURCE IMMEDIATE

Measurement

Computed result

Measurement value

output

:INITIATE:CONTINUOUS ON
:TRIGGER:SOURCE EXTERNAL

Wait state for trigger

TRIG terminal

M.TRIG

Trigger delay

Measurement

computed result

Measurement value

output

:INITIATE:CONTINUOUS OFF
:TRIGGER:SOURCE IMMEDIATE

Idle state

:INITIATE:IMM E D IA TE

Trigger delay

Measurement

computed result

Measurement value

output

:INITIATE:CONTINUOUS OFF
:TRIGGER:SOURCE EXTERNAL

Idle state

:INITIATE:IMM E D IA TE

Wait state for trigger

TRIG terminal

M.TRIG

Trigger delay

Measurement

computed result

Measurement value

output

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function or frequency me as u re me n t function.

31

Chapter 5

1

2

5.1 Comparator Function

The Comparator function compares the measurement value with the upper­limit and lower-limit values previously set, determines the appropriate range
for the measurement value, and displays the determination.
The flow of comparator setup is given below:

Setting of comparator

Measurement (comparator: OFF)

Other Functions

3

4

5

6

7

8

NOTE

ENT

The upper-limit value is set.

ENT

The lower-limit value is set.

ENT

Measurement (comparator: ON)

ENT

: Confirms the current setting and proceeds to the next setup.

COMP

: Proceeds to the next setup without confirming the current setting.

(Cancellation)

The Comparator function cannot be used in Auto Range.
The Comparator function cannot be used with the continuity tes t

COMP

COMP

COMP

COMP

9

10

11

12

13

14

A

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5.1 Comparator Function

32

_____________________________________________________________________________________________

Described below is the flow of operations from the measurement state with
comparator OFF to the start of the measurement state using the comparator.

In the following example, the upper-limit value will be set to 12 V and the
lower-limit value to 8 V.

(1) The upper-limit value is set.

1

.

Press

COMP

when the comparator is off.

"Hi" flashes, and the upper-limit value setup screen opens.

. Set the upper-limit value by pressing .

2

This is set to 12 V in the example.

(2) The lower-limit value is set.

1

.

Press

ENT

on the upper-limit value setup screen.

lower-limit value setup screen opens.

. Set the lower-limit value by pressing .

2

This is set to 8 V in the example.

(3) Turn the comparator ON.

Press

ENT

in the lower-limit value setup screen to initiate the

measurement state with the comparator ON.

"Lo"

flashes, and the

The comparator decides in which range the measurement value is covered
and displays the result. To enable the buzzer to beep depending on the
comparator determination, refer to 5.2 Setup for Comparator Buzzer Sound.

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33

NOTE

To turn the comparator OFF

If you press
unit shifts to measurement with the comparator OF F.

Pressing

screen opens the following screen without altering the current upper-limit or
lower-limit value.

When the comparator is ON, only th e following keys ar e active:

COMP,LOAD,SAVE,LOCA L(M.TRIG

is set)

The conditions for me as u r me n t wit h th e co mpara tor ON a re t a k en from

th e conditions of th e me a su r em en t conducted wit h th e co mpar ato r
OFF.

The upper-limit an d lower-limit values are saved as indication count

values t hat do not depend on the measurement functions or
measurement ranges. With a different measurement function or
different mea su re ment range , th e absolut e values indicated by th e
count values also change.
sFor example, specify 038000 to s et t he lower-limit val ue t o 380 mV in
the 2 V range of the

If t he uni t is switched off while in the upper-limit value se tup screen or

lower-limit value set up screen, t he values e ntered dur ing se tup ar e
canceled a nd the previously s et valu es ret ain ed.

If th e c ompa rato r is t ur ne d on while Auto Ran ge is active, Auto Ran ge

will be cleared.

If t he comparator is tu rne d on while th e upper-limit valu e of t he

compa rato r is set to a valu e s mall er t h a n t he lower-limit value, th e
unit will indicate "

The relation between the th reshold an d indication values are a s follows:

Indication value > Upper-limit value : Hi
Upper-limit value≧Indication value≧Lower-limi t value: IN
Lower-limit value > Indication value: Lo

COMP

COMP

while the unit is measuring with the comparator ON, the

on the upper-limit value setup screen or lower-limit value setup

only w h en Ex t er n al Trigge r

V function.

Err.004

", a nd t he comparator will be tur ned off.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

A

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5.1 Comparator Function

34

_____________________________________________________________________________________________

5.2 Comparator Buzzer Sound

Set the buzzer to sound at comparator determination.

NOTE

1
2

.

Press

.

Press

SHIFT

COMP

"

.

SHIFT

"

lights up on the display.

. The comparator buzzer sound setup screen opens, and the

current setting for the comparator buzzer flashes.

.Press to select the comparator determination that should activate the

3

buzzer.
"HL" : The buzzer beeps when the determination is Hi or Lo.
"In" : The buzzer beeps when the determination is In.
"OF" : The buzzer is not activated to beep, regardless of the comparator

result.

. Press

4

The unit is set to "HL" at the factory before shipment.

ENT

. You are returned to the measurement screen.

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35

5.3 Panel Save Function

The current measurement conditions are saved to the built-in nonvolatile
memory. A maximum of 30 different measurement conditions may be
saved. All the conditions in effect when Panel Save is executed are saved.
The saved measurement conditions can be loaded with the Panel Load
function described further below.

1

2

3

NOTE

. Press

1

indicating the panel number flashes.

.Press to select the panel number you want to save.

2

.

Press

3

returned to the measurement screen.

When the Pa nel Save screen opens, it indicates pa nel numb ers t h at

have not be en saved previously.

If you select a panel number under which you previously saved data and press

ENT

Interruption of Panel Save function

If you inadvertently opened the Panel Save screen, press
without pressing
The measurement screen will be restored without executing a Panel Save.

The following items are saved:

SAVE

. The Panel Save setup screen opens, and a numerical value

ENT

. The measurement conditions are saved, and you are

, the previously saved data will be overwritten.

ENT

.

SAVE

again

4

5

6

7

8

9

10

Measurement speed
Function
Range
ON/OFF for the comparator function
Upper/lower limit value of comparator
function
Comparator buzzer sound
Internal trigger/ external trigger
Auto delay/ manual delay
Trigger delay time
ON/OFF for the zero ajust function
Zero adjust value
ON/OFF for the average function
Number of averaged measurements
Kind of the clamp sensor

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11

12

13

14

A

36

_____________________________________________________________________________________________

5.4 Panel Load Function

This function loads the measurement conditions saved by Panel Save from
the built-in nonvolatile memory.

NOTE

1

.

Press

LOAD

. The Panel Load setup screen opens, and the numerical

value indicating the panel number flashes.

.Press to select the panel number from which you want to load data.

2
3

.

Press

ENT

. The measurement conditions are loaded, and you are

returned to the measurement screen.

For panel number selection, tables not saved are skipped.

When a System Reset is performed,

number has been saved.

LOAD

becomes inactive, since no panel

Interruption of Panel Load function

If you inadvertently opened the Panel Load screen, press
without pressing

ENT

.

LOAD

again

The measurement screen will be restored without executing a Panel Load.

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37

5.5 Key Operation Sound

The setting made here determines whether or not the key operation sound
should be emitted when a key is pressed on the front panel of the main unit.

.

Press

1

. Pressing

2

.Press to display the key operation sound setup screen.

3

. Pressing causes the current setting for the key operation sound to flash.

4

SHIFT

ENT

"

.

"

SHIFT

lights up on the display.

displays the menu screen.

"On": Key operation sound emitted
"OF": Key operation sound not emitted

.Press to select On or Off.

5

. Pressing

6

.

Press

7

ENT

causes "

ENT

again to define your selection.

bEEP

" to flash.

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5.5 Key Operation Sound

38

_____________________________________________________________________________________________

5.6 Key Lock Function

When Key Lock is executed, the key switches on the front panel are
disabled. The set data can be protected with the Key Lock function.

. Set measurement conditions.

1

NOTE

NOTE

. Press

2

.

Press

3

SHIFT

LOCA L

. "

" lights up on the display.

SHIFT

to initiate the Key Lock state.

When the unit is in Key Lock status, the following keys remain active:

LOCA L,SHIFT,M.TRIG

Clearing the Key Lock function

.

Press

1

.

Pressing

2

The Key Lock function is not deactivated even if the u nit is switched

off.

M.TRIG

active.

SHIFT

cannot be used when Key Lock is activated with the Internal Trigger

.

LOCA L

"

SHIFT

"

lights up on the display.

clears the Key Lock function.

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39

5.7 Remote Function

This unit can be controlled externally through the RS-232C or GP-IB
interface. When the unit is placed in remote status (remote operation state),
"

" on the display lights up, and the keys on the front panel are disabled.

RMT

Clearing the Remote function

Pressing

LOCA L

clears the Remote function.

NOTE

Even after remote st atus h as been cleared, the uni t will reent er remote

st a tu s if ex terna lly controlled th ro ugh t he RS-232C or GP-IB interface.

When the trigger source is external (

can be used even while the unit is in remote status.

:TRIGGER:SOURCE_EXTERNAL

),

M.TRIG

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40

_____________________________________________________________________________________________

5.8 System Reset

System Reset is a function designed to initialize all measurement conditions
to their initial factory settings. Performing a System Reset also initializes
data stored via Panel Save.

.

Press

1

. Pressing

2

.Press to display the system reset setup screen.

3

. Pressing causes "On" to flash.

4

. Pressing

5

If

SHIFT

ENT

ENT

ENT

is pressed with

"

.

SHIFT

"

lights up on the display.

displays the menu screen.

runs System Reset.

"

"

flashing, the unit will not perform a

rSEt

System Reset.

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41

The unit factory settings are as follows:

Measurement function DCV Low-power 2-terminal resistance

DC voltage measurement: range Auto range 4-terminal resistance measurement:

AC voltage measurement: range Auto range Low-power 4-terminal resistance

2-terminal resistance measurement:
range

Low-power 2-terminal resistance
measurement: range

4-terminal resistance measurement:
range

Low-power 4-terminal resistance
measurement: range

Frequency measurement: attenuator
range

DC current measurement: range Auto range Trigger delay time 0.000 s
AC current measurement: range Auto range Trigger delay AUTO
DC voltage measurement: zero ajust

value
AC voltage measurement: zero ajust

value

Auto range DC current measurement: zero ajust

Auto range AC current measurement: zero ajust

Auto range Sampling Period SLOW

Auto range Number of averaged measurements 2

2V Average function OFF

0 Power supply frequency 60 Hz

0 Clamp sensor 9010

measurement: zero ajust function

zero ajust function

measurement: zero ajust function

function

function

OFF

OFF

OFF

OFF

OFF

2-terminal resistance measurement:
zero ajust value

Low-power 2-terminal resistance
measurement: zero ajust value

4-terminal resistance measurement:
zero ajust value

Low-power 4-terminal resistance
measurement: zero ajust value

DC current measurement: zero ajust
value

AC current measurement: zero ajust
value

DC voltage measurement: zero ajust
function

AC voltage measurement: zero ajust
function

2-terminal resistance measurement:
zero ajust function

NOTE

RST

∗

does not clear interface data.

0 Key operation sound ON

0 Key lock OFF

0 Comparator OFF

0 Comparator: upper limit value 000000

0 Comparator: lower limit value 000000

0 Comparator: buzzer sound HL

OFF Interface RS-232C

OFF Panel save All clear

OFF

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5.8 System Reset

42

_____________________________________________________________________________________________

5.9 Measurement States and Effective Keys

Condition FUNCTION AUTO COMP

Normal

LOCK

RMT

COMP

● ● − ● ● ●

− − − − − −

− − − − − −

− − − − ● ●

Condition M.TRIG INT.TRIG LOAD SAVE 0ADJ LOCAL

Normal

LOCK

RMT

COMP

● ● ● ● ● −

1

*

●

●

●

2

*

1

*

− − − − −

− − − − ●

− ● ● − −

Condition LOCK SMPL AVE ENT MENU SHIFT

3

Normal

LOCK

RMT

COMP

● ● ● ●

● − − − − ●

− − − − − −

● − − ●

*

3

*

● ●

− ●

*1: Only when External Trigger is active.

:TRIGGER:SOURCE_EXTERNAL

*2:
*3: When the Interface setting is set to printer.

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43

Chapter 6

1

2

External Control Terminal

/ External output terminal

(1) External control terminal functions

External trigger input
Selection of panel number to be loaded

(2) External output terminal function

Measurement end signal output
Output of comparator determination signal

(3) Connectors in use

57RE-40360-730B(D29) (DDK Ltd)

(4) Acceptable connector

RC30-36P (HIROSE ELECTRIC INC)
Or, their equivalent.

3

4

5

6

7

8

9

18

36

19

1

10

11

12

13

14

A

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44

_____________________________________________________________________________________________

6.1 Explanation of Signal Wires

CAUTION

To prevent damage to this unit, please observe the following precautions:

Do not apply a voltage or current exceeding the rated values to the external

output terminal or external control terminal.

When using a relay, always attach a flyback diode.
Take care not to short-circuit the external output terminal and the external

control terminal.

Take care not to short-circuit INT.DCV and INT.GND.

When a device is to be coupled to the external output terminal or external
control terminal, be sure to connect the device to ground. Failure to do so
may destroy measurement system insulation.

To prevent electric shock, please observe the following precautions:

When a device is to be connected to this unit, switch it off before coupling
it to the terminal. Establish cable connections securely to prevent
dislocation during operations and subsequent contact with conductive parts
of the unit casing or test leads.

INT.GND is connected to ground. If a controller has a potential to ground,
a short-circuit will occur.

Pin No. I/O Signal line name Pin No. I/O Signal line name

1 IN LOAD0
2 IN LOAD2
3 IN LOAD4
4 IN TRIG

―――――

―――――

―――――

――――

19 IN LOAD1
20 IN LOAD3
21 IN (Reserved)
22

−

―――――

―――――

Not used
5 OUT INT.DCV 23 OUT INT.GND
6 OUT INT.DCV 24 OUT INT.GND
7 OUT INT.DCV 25 OUT INT.GND
8 OUT INT.DCV 26 OUT INT.GND
9

10
11 OUT (Reserved) 29 OUT (Reserved)
12 OUT (Reserved) 30 OUT (Reserved)
13 OUT EOC
14 OUT IN
15 OUT INT.DCV 33 OUT INT.GND
16 OUT INT.DCV 34 OUT INT.GND
17 OUT INT.DCV 35 OUT INT.GND
18 OUT INT.DCV 36 OUT INT.GND

−

−

No connection 27
No connection 28

―――

――

31 OUT Hi
32 OUT Lo

−

−

No connection
No connection

――

――

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―――――――――

(1) LOAD0

―――――――――

〜

LOAD4

45

These signals select the panel number from which to load data.
When a trigger signal is applied in External Trigger mode, the unit loads
data from the selected panel number and performs a measurement.

―――――――――

LOAD0

(The number 0 indicates that the LOAD
number 1 indicates that the LOAD

*: When LOAD0

is the LSB, and LOAD4

―――――――――

LOAD4

1 1 1 1 1 *
1 1 1 1 0 1
1 1 1 0 1 2
1 1 1 0 0 3
1 1 0 1 1 4
1 1 0 1 0 5
1 1 0 0 1 6
1 1 0 0 0 7
1 0 1 1 1 8
1 0 1 1 0 9
1 0 1 0 1 10
1 0 1 0 0 11
1 0 0 1 1 12
1 0 0 1 0 13
1 0 0 0 1 14
1 0 0 0 0 15
0 1 1 1 1 16
0 1 1 1 0 17
0 1 1 0 1 18
0 1 1 0 0 19
0 1 0 1 1 20
0 1 0 1 0 21
0 1 0 0 1 22
0 1 0 0 0 23
0 0 1 1 1 24
0 0 1 1 0 25
0 0 1 0 1 26
0 0 1 0 0 27
0 0 0 1 1 28
0 0 0 1 0 29
0 0 0 0 1 30
0 0 0 0 0 *

―――――――――

―――――――――

LOAD3

to LOAD4

―――――――――

―――――――――

―――――――――

is the MSB.

―――――――――

terminal should be shorted by the INT.GND, and the

terminal should be open.)

―――――――――

LOAD2

are all set to 1, or when LOAD0

―――――――――

LOAD1

―――――――――

LOAD0

―――――――――

to LOAD4

Panel NO.

―――――――――

are
all setto 0, even if a trigger signal is applied, data loa ding from a panel
doesnot take place, because there is no panel number corresponds to them.

――――――

(2) TRIG

This signal places the unit in External Trigger mode. If you change

――――――

TRIG

signal from Hi to Lo, the unit will measure once at the edge.
If the interface is set to Printer, the unit performs a single measurement and
outputs the result to the printer. For more information on printers, refer to
Chapter 9. Printer Interface.

(3) INT.DCV, INT.GND

These signals output the internal 5 VDC of this unit and the internal GND.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

A

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46

_____________________________________________________________________________________________

―――――

(4) EOC

This is a measurement end signal.

―――

―――

(5) Hi

,IN

―――

,Lo

These are comparator determinations.

NOTE

In t he following cases, in pu t signa ls will be ineffective.

Trigger in t he Inte rnal Trigger mode (TRIG
Trigger in an y screen ot her th a n m eas ur emen t screens (TRIG
Panel Load in remote status.

If no m ea s ur e me nt is conducted aft er th e power is t u r ne d on, all t h e

ou tp ut s i gn a l s (op en collector) will go off.

If a t rigger signal is applied to the un it with all of LOAD0

to Hi or Lo, Pan el Load is no t executed .

If meas urement is initiated after Panel Load has been executed and the

mea s u re me n t conditions ha ve been al ter ed, me a su r e me nt va lues will
ta ke a t l east 10 ms to stabilize. (Stabili zation time var ies wit h function,
ra ng e , a n d t h e s a mp li n g period.)
To conduct me a su r em en t s quickly, set all of LOAD0
Lo aft er executing Pane l Load.

6.2 Timing Chart

There are two kinds of external control and external output timings for
External Trigger mode and Internal Trigger modes, as follows.

―――――――

)

―――――――――

―――――――

―――――――――

―――――――――

- LOAD4

).

―――――――――

- LOAD4

to Hi or

set

(1) External trigger mode

―――――――

TRIG
Measurement start
signal

Measurement state

―――――――

EOC
Measurement end
signal

―――

―――

,IN

―――

,Lo

Hi

Comparator result output

T1

T2 T3

Idle state

Measurement
in progress

Previous determination

T4

T5

Idle state

Determination

Measurement

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47

Contents

T1 Measurement trigger ( TRIG

pulse width
T2 Trigger delay time Refer to 4.5.3 Trigger Delay
T3 Measuring time* FAST

T4 Computing time
T5 From EOC=Lo until input of trigger

―――――――

( TRIG

)

―――――――

)

MEDIUM 130 ms (50 Hz) / 108 ms (60 Hz)

SLOW 1.04 s (50 Hz) / 1.08 s (60 Hz)

MIN TYP MAX

500μs

−

−

500μs

Time

− −

3.3 ms

2ms

− −

*: Reference value. With the Average function, the measuring time is

determined by multiplying the measuring time by the number of averaged
measurements.
This varies with the function range. Use the sampling period (free run) in
Chapter 10 Specification as a guide.
When set to FAST, the unit performs a self-calibration every 30 minutes
for a duration of approximately 65 ms each time.

−

−

1

2

3

4

5

6

7

(2) Internal trigger mode

―――――――

EOC
Measurement end
signal

―――

―――

,IN

―――

,Lo

T6 Measurement end

signal (EOC
pulse width

Hi

Comparator result output

Contents

―――

T6

9

10

8

Time

MIN TYP MAX

)

FAST

MEDIUM

SLOW

−

−

−

1.7 ms
50 ms

500 ms

−

−

−

11

12

13

14

A

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6.2 Timing Chart

48

_____________________________________________________________________________________________

6.3 Internal Circuit Configuration

(1) Power rating for external control and output terminals

Input/output device Logic Electrical

requirements

Output Open collector Negative logic DC35 V, DC50 mAmax.
Input C-MOS Negative logic H: 3.8〜to 5.0 V,

INT.DCV Internal power supply

output

L: 0 to 1.2 V
DC5±10%,

DC50 mAmax.

(2) Application of external output terminal

Connection of the relay

Connection of
the LED lamp

(3) Circuit configuration of external control terminal

Connection of

negative logic output

(4) Circuit configuration of external output terminal

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49

Chapter 7

1

2

RS-232C Interface

RS-232C Interface enables all 3237/38/39 controls except 3237/38/39 power
switch.
RS-232C and GP-IB (-01) cannot be used simultaneously. Select either of
them. For information on performing the selection, refer to 7.1 Preparations
for Communication.

(1) Specifications

3237/38/39 RS-232C settings are configured as follows and cannot be
modified. Modify and adjust personal computer settings.

Transmission mode Start-stop synchronization, full duplex
Transfer rate 9600 bps
Data length 8 bit
Parity None
Stop bit 1bit

3

4

5

6

7

8

9

Hand shake No X flow, hardware flow control
Delimiter CR, CR + LF for reception

CR + LF for transmission

10

11

12

13

14

A

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_____________________________________________________________________________________________

(2) Electric specifications

Input voltage level +5 V to +15 V: ON, -15 V to -5 V: OFF
Output voltage level

(Load resistance 3 to 7
kΩ)

+5 V to +9 V: ON, -9 V to -5 V: OFF

3237/38/39 RS-232C connector signal lead is set as follows.
Other pins are not in use.
Interface connector: D-sub 9 pin, male

Pin Signal IN/OUT Purpose

12345

6789

2 RxD IN Receiving

3 TxD OUT Sending

5 GND GND Signal

Do not use other pins.

data

data

grounding

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51

7.1 Preparing for Data Transfer

1

CAUTION

To avoid electrocution, turn off the power to all devices before plugging or

unplugging any of the interface connectors.

To avoid damage to the product, do not short-circuit the output terminal

and do not input voltage to the output terminal.

(1) Connecting Connection Cables

Use 9637 RS-232C CABLE or 9638 RS-232C CABLE to connect with
personal computer.
When using any other cables, choose a cross cable that allows sending data
and receiving data and is connected with signal lead and ground lead.
No other particular wiring is required.

3237/38/39

RxD
TxD

GND

Cable connector on the unit

Wiring: Reverse wiring
When connecting with PC/AT compatible computers: 9637 RS-232C
CABLE
When connecting with NEC PC 98 series: 9638 RS-232C CABLE

Personal computer

RxD
TxD
GND

2

3

4

5

6

7

8

9

(2) Connecting 3237/38/39 and Personal Computer

. Use cable to connect 3237/38/39 and personal computer.

1

. After connecting, turn on both 3237/38/39 and personal computer power.

2

. Set RS-232C in personal computer.

3

Set hardware flow OFF in personal computer flow control setting.
For settings, see individual software instruction manual.

10

11

12

13

14

A

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52

_____________________________________________________________________________________________

(3) 3237/38/39 Interface Setting

Designate 3237/38/39 Interface setting "

"(RS-232C) to enable 3237/38/39

rS

Interface to communicate with personal computer.

.

Press

1

.

Pressing

2

.

Press to display the interface setup screen.

3

. Pressing causes the interface currently set to flash.

4

"rS" : RS-232C
"
"

. Press to select RS-232C ("rS").

5

.

Pressing

6

SHIFT

" : Printer

Prn

" : GP-IB

gPIb

.

ENT

ENT

"

"

SHIFT

lights up on the display.

displays the menu screen.

causes

"IF"

to flash.

NOTE

. Press

7

The unit is shipped from the factory with the interface set to RS-232C.

ENT

again to define your selection.

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53

7.2 Communication

Command is sent out from personal computer to 3237/38/39.
After receiving command, 3237/38/39 processes operation according to the
command.
When personal computer sends inquiry command (command with "?"),
3237/38/39 sends back corresponding response.

Command Format

During communication, 3237/38/39 front panel "
status.
Remote status disables all operations except
Press
local status.

LOCA L

to disengage remote status (communication) and returns to

LOCA L

"isturnedoninremote

RMT

.

1

2

3

4

5

6

(1) Command Format

The 3237/38/39 commands have the following structure.

Command (+Parameter)

The command and the parameter are separated by ""(one character space)
If there is no parameter, send the delimiter after the command.
The command may consist of both upper and lower case letters.
Make sure to use one character space as the separator between the command
and the parameter.

①

When the command contains a parameter

:VOLTage:RANGe 100 (+delimiter)

the command format consists of the command :VOLTage:RANGe followed
by the separator ""(one character space). Then follows the parameter "100".
Following the parameter comes the delimiter

②

When the command contains no parameter

:INIT (+delimiter)

the command format consists of the command :INIT immediately followed
by the delimiter.

Delimiter

7

8

9

10

11

12

NOTE

The meaning of the delimiter is to separate commands and data. When the
3237/38/39 receives the delimiter, it starts analysis of the command.

14

A

13

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(2) Command/Parameter/Delimiter

①

Command

A command can abbreviated. The whole command form is referred to as the
"long form" and the abbreviated form as the "short form."
Although the short form is printed in upper case letters and the rest in lower
case letters in this instruction manual, sending command (including
parameter and delimiter) from personal computer in either upper or lower
case letters is valid.
All responses returned from the 3237/38/39 are in upper case letters.

VOLTage OK (the long form)
VOLT OK(the short form)
VOLTA,VOL error

A command consisting of a single word beginning with a letter.
Examples: :READ? etc.

A command consisting of a sequence of words separated by colons.
Examples: :SYSTem:BEEPer, :MEASure:VOLTage? etc.

A command beginning with an asterisk (∗) to indicate that is a
particular command.
Examples: ∗RST etc.

②

Parameter

Character data and decimal data are used as the 3237/38/39 parameter (data)
and the command determines the type of data. The 3237/38/39 uses
character string data and numeric data, and the type use varies according to
the command in question.

Character data

Character string data must always begin with an alphabetic character, and
the characters following can be either alphabetic characters or numerals.
Although in character data either upper case letters or lower case letters are
accepted, response message output by the 3237/38/39 are always in upper
case letters.

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Decimal data

The numeric data values are all represented in decimal, in three formats
identified as NR1, NR2 and NR3, and each of these can appear as either a
signed number or an unsigned number. Unsigned numbers are taken as
positive.

NR1 format: Integer data
Example: +12, -23, 34

NR2 format: Fixed point number
Example: +1.23, -23.45, 3.456

NR3 format: Floating point number
Example: +1E-2, -2.3E+4
The term "NRf format" includes all these three formats.
Each 3237/38/39 command designates a format.

③

Delimiter

Depending on transmission direction, the delimiter is as follows.
From computer to 3237/38/39: CR or CR + LF
From 3237/38/39 to computer: CR + LF

(3) Separators

①

Command unit separator

Multiple commands can be written in a line by connecting them with a
semicolon";".
Example: FUNCtion 'VOLTage';VOLTage:RANGe 100
Multiple query commands can also be in a line. Response is returned in a
line with each responding data separated by a semicolon";". Writing multiple
commands without inserting semicolons results in text error failing to
complete command execution.

②

Separator between command and parameter

Use space" " in command with both command and parameter to separate
command and parameter.
Example: VOLTage:RANGe 100

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Data Format

①

Inquiry without read value

String of not more than 64 ASCII characters.

②

Measurement data

There are 2 ways measurement data is formatted.
Default data uses Format 1.

FORMAT1

(-)D.DDDDDDDDESDD + delimiter
( ) are used only when there is a negative value. Left-justify the entire

line when the value is positive.
D: Digit
E: Exponential
S: +/- signs

FORMAT2 (Software version 2.05 or later)

The FORMat command is used to make the setting.
The settings are in effect until the power is turned off.
Format 1 will be the active method upon restarting or resetting the
instrument.
For more information, please refer to APPENDIX (6) "Using FORMAT2
on Measurement Data."

Output Queue

③

Over flow

Positive: 9.900000E+37
Negative: -9.900000E+37

④

ON/OFF for header

Header can be set ON or OFF for some of the responses.
The HEADer command is used to make the setting.
Examples of responses with the header ON and OFF are given below.
Example: Response when the trigger delay is set to 0.5 s.
Inquiry: TRIGer:DELay? (Command to inquire about delay time).
Response: (Trigger delay is 500 ms)
When the header is ON (Command part + parameter part)
:TRIGGER:DELAY 5.000000E-01
When the header is OFF (Parameter part only)

5.000000E-01

Response messages accumulated in the output queue and are transmitted as
data and cleared. The output queue is also cleared when the power is turned
off and turned on again. The 3237/38/39 has an output queue of 64 bytes
capacity. If the response messages overflow this limit of 64 bytes, a query
error is generated, and the output queue is cleared.

Input Buffer

The 3237/38/39 has an input buffer of 64 bytes capacity. When more than
64 bytes of data are transmitted, when the buffer is full any subsequent bytes
received will be ignored.

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57

Status Byte Registers

(1) Status byte register (STB)

The status byte register is an 8-bit register whose contents are output from
the 3237/38/39 to the controller, when serial polling is being performed.
If even only one bit in the status byte register has changed from 0 to 1
(provided that it is a bit which has been set in the service request enable
register as a bit which can be used), then the MSS bit is set to 1.
Simultaneously with this the SRQ bit is set to 1, and service request is
generated.

bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0

Not used

MSS ESB MAV

Logical

sum

Not used Not used Not used

Status byte registers(STB

ESB0

bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0

Not used

×

ESB MAV

Service request enable registers(SRER

Not used Not used Not used

ESB0

Although the MSS bit is read out on an ∗STB?query,ona∗CLS command
for example it is not cleared until the event is cleared.

Bit 7
Bit 6

MSS
Bit 5

ESB
Bit 4

MAV
Bit 3
Bit 2
Bit 1
Bit 0

ESB0

Not used
MSS shows the logical sum of other bits in the status byte register.

Standard event summary (logical sum) bit
ESB shows the logical sum of the standard event status register.

Message available
MAV indicates the output queue has messages.

Not used
Not used
Not used
Event summary (logical sum) bit 0

ESB0 shows the logical sum of the event status register 0.

(2) Service request enable register (SRER)

This register masks the status byte register. Setting a bit of this register to 1
enables the corresponding bit of the status byte register to be used.

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Standard Event Registers

(1) Standard event status register (SESR)

The standard event status register is an 8-bit register. If any bit in the
standard event status register is set to 1 (after masking by the standard event
status enable register), bit 5 (ESB) of the status byte register is set to 1.

bit6

RQS
MSS

Standard event status registers(SESR

bit5

ESB

Logical

sum

bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0

PON URQ CME EXE DDE QYE RQC OPC

bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0

PON URQ CME EXE DDE QYE RQC OPC

Standard event status enable registers(SESER

The standard event status register is cleared in the following four situations:

①

When a ∗CLS command is received.

②

When an ∗ESR? query is received.

③

When the unit is powered on.

④

When the I/F is Switched.

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(2) Standard event status enable register (SESER)

Setting any bit of the standard event status enable register to 1 enables the
corresponding bit of the standard event status register to be accessed.

Bit 7

PON

Bit 6

URQ

Bit 5

CME

Bit 4
EXE

Bit 3

DDE

Power-on flag
PON is set to "1" when the 3237/38/39 is turned on or restored from
a power failure and switching the interface.

User request
This bit is not used in the 3237/38/39.

Command error (Commands up to the message terminator are
ignored.)
CME is set to "1" when the command received has the following
syntax or interpretation errors:

A command not defined in the 3237/38/39 is received.
The program header is invalid.
The data quantity differs from the specified value.
The data format differs from that specified.

Execution error
EXE is set to "1" when the command received cannot be executed
because:

The specified data deviates from the specified range.
The specified data is not acceptable.

Error resulting from device malfunction.
DDEissetto"1" if the command cannot be executed for any reason
other than command, query, or execution errors.

The command cannot be executed, due to an error within the
3237/38/39.
The command cannot be executed, because another function is
already active.

Bit 2

QYE

Bit 1

RQC

Bit 0

OPC

Query error (The output queue is cleared.)
The query error is detected by the output queue controller and QYE
set to "1" when the following events occur:

An attempt is made to read an empty output queue.
Deadlock state
The next message is received while the output queue contains data.
A query exists after the ∗IDN? query on the same line.

Controller privilege request
This bit is not used in the 3237/38/39.

Operation complete

OPC is set to "1" when (for example) the ∗OPC command
executes:
When all actions specified by messages up to the ∗OPC command
are complete

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Specific Event Registers

(1) Event status register 0

8-bit event status registers are provided for managing events on the
3237/38/39. If any bit in one of these event status registers is set to 1 (after
masking by the corresponding event status enable register), bit 0 of the status
byte register (ESB0) is set to 1.

Event status registers 0(SESR0

bit1 bit0

Not used

Not used

ESB0

bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0

Not used Not used

bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0

Not used Not used

-OF +OF HI IN LO EOC

-OF +OF HI IN LO EOC

Event status enable registers 0(ESER0

The event status register 0 is cleared in the following four situations:

①

When a ∗CLS command is received.

②

When an ∗ESR? query is received.

③

When the unit is powered on.

④

When the I/F is Switched.

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(2) Event status enable register 0

These event status enable registers mask the corresponding event status
registers.

Bit 7
Bit 6
Bit 5

-OF

Bit 4
+OF

Bit 3

HI

Bit 2

IN

Bit 1

LO

Bit 0
EOC

Not used
Not used

Minus over load

Plus over load

Comparator result: Hi

Comparator result: IN

Comparator result: Lo

Measurement completed.

Summary of commands for writing and reading each of the registers

Register Read Write

Status byte register

∗STB?
Service request enable register
Standard event status register
Standard event status enable register
Event status register 0 :ESR0?
Event status enable register 0 :ESE0? :ESE0

∗SRE? ∗SRE

∗ESR?

∗ESE? ∗ESE

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7.3 Command Code Table

7.3.1 Common Command

Message

∗CLS
∗ESE
∗ESE?

∗ESR?

∗IDN?

∗OPC

∗OPC?
∗RST
∗SRE

∗SRE?

Input/output

data format

Clears the status byte register and the event
registers.

NR1 numerical data (1) Sets the standard event status enable register.
NR1 numerical data (1)

NR1 numerical data (1)

[HIOKI,3237/3237‑01
/3238/3238‑01
/3239/3239‑01,0,V*.**]

NR1 numerical data (1)

NR1 numerical data (1)

NR1 numerical data (1)

Read the standard event status enable register
(SESER).

Queries out and clears the contents of the
standard event status register (SESR).

Queries device ID.

Sets the standard event status register bit0
(OPC bit) to "1."

Returns a "1" instead of setting the SESR bit0
(OPC bit) to "1."

Initializes the settings.
Sets the service request enable register

(SRER).
Queries the service request enable register

(SRER).

Meaning

∗STB?
∗TRG

∗TST?
∗WAI

NR1 numerical data (1)

NR1 numerical data (1)

Queries

Request for sampling.
Requests execution of, and queries the result of,

the self test.
Waits until previous event is completed.

the status byte register.

( ) indicates the number of data.

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7.3.2 Specific Command

Set and inquiry concerning event status register

Command Input/output data format Initial value

:ESE0 NR1 numerical data (1) 255
:ESE0? NR1 numerical data (1)
:ESR? NR1 numerical data (1)

Select and inquiry concerning measurement function

Command Input/output data format Initial value

[:SENSe:]FUNCtion 'VOLTage[:DC]'/'VOLTage:AC'/

'CURRent:DC'/'CURRent:AC'/

'RESistance'/'LPResistance'/

'FRESistance'/'LPFResistance'/

'CLAMp:DC'/'CLAMp:AC'/'FREQuency'/

'CONTinuity'/'DIODe'

[:SENSe:]FUNCtion? 'VOLTAGE[:DC]'/'VOLTAGE:AC'/

'CURRENT:DC'/'CURRENT:AC'/

'RESISTANCE'/'LPRESISTANCE'/

'FRESISTANCE'/'LPFRESISTANCE'/

'CLAMP:DC'/'CLAMP:AC'/'FREQUENCY'/

'CONTINUITY'/'DIODE'

'VOLT:DC'

Set and inquiry concerning range

Command Input/output data format Initial value

[:SENSe:]VOLTage[:DC]:RANGe NRf numerical data 199.999E-03
[:SENSe:]VOLTage[:DC]:RANGe? NR3 numerical data
[:SENSe:]VOLTage:AC:RANGe NRf numerical data 1.99999
[:SENSe:]VOLTage:AC:RANGe? NR3 numerical data
[:SENSe:]CURRent:DC:RANGe NRf numerical data 199.999E-03
[:SENSe:]CURRent:DC:RANGe? NR3 numerical data
[:SENSe:]CURRent:AC:RANGe NRf numerical data 199.999E-03
[:SENSe:]CURRent:AC:RANGe? NR3 numerical data
[:SENSe:]RESistance:RANGe NRf numerical data 199.999
[:SENSe:]RESistance:RANGe? NR3 numerical data
[:SENSe:]FRESistance:RANGe NRf numerical data 199.999
[:SENSe:]FRESistance:RANGe? NR3 numerical data
[:SENSe:]LPResistance:RANGe NRf numerical data 1.99999E+03
[:SENSe:]LPResistance:RANGe? NR3 numerical data
[:SENSe:]LPFResistance:RANGe NRf numerical data 1.99999E+03
[:SENSe:]LPFResistance:RANGe? NR3 numerical data
[:SENSe:]CLAMp:DC:RANGe NRf numerical data
[:SENSe:]CLAMp:DC:RANGe? NR3 numerical data
[:SENSe:]CLAMp:AC:RANGe NRf numerical data 10
[:SENSe:]CLAMp:AC:RANGe? NR3 numerical data

Set and inquiry concerning attenuator range (Frequency measurement)

Command Input/output data format Initial value

[:SENSe:]FREQuency:VOLTage:RANGe NRf numerical data 1.99999
[:SENSe:]FREQuency:VOLTage:RANGe? NR3 numerical data

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Set and inquiry concerning Auto Range

Command Input/output data format Initial value

[:SENSe:]VOLTage[:DC]:RANGe:AUTO ON/OFF or 1/0 ON
[:SENSe:]VOLTage[:DC]:RANGe:AUTO? ON/OFF
[:SENSe:]VOLTage:AC:RANGe:AUTO ON/OFF or 1/0 ON
[:SENSe:]VOLTage:AC:RANGe:AUTO? ON/OFF
[:SENSe:]CURRent:DC:RANGe:AUTO ON/OFF or 1/0 ON
[:SENSe:]CURRent:DC:RANGe:AUTO? ON/OFF
[:SENSe:]CURRent:AC:RANGe:AUTO ON/OFF or 1/0 ON
[:SENSe:]CURRent:AC:RANGe:AUTO? ON/OFF
[:SENSe:]RESistance:RANGe:AUTO ON/OFF or 1/0 ON
[:SENSe:]RESistance:RANGe:AUTO? ON/OFF
[:SENSe:]LPResistance:RANGe:AUTO ON/OFF or 1/0 ON
[:SENSe:]LPResistance:RANGe:AUTO? ON/OFF
[:SENSe:]FRESistance:RANGe:AUTO ON/OFF or 1/0 ON
[:SENSe:]FRESistance:RANGe:AUTO? ON/OFF
[:SENSe:]LPFResistance:RANGe:AUTO ON/OFF or 1/0 ON
[:SENSe:]LPFResistance:RANGe:AUTO? ON/OFF

Set and inquiry concerning clamp sensor

Command Input/output data format Initial value

[:SENSe:]CLAMp:MODel NRf numerical data 9010
[:SENSe:]CLAMp:MODel? NR1 numerical data

Set and inquiry concerning the Zero-Adjusted value.

Command Input/output data format Initial value

[:SENSe:]VOLTage[:DC]:REFerence NRf numerical data 0
[:SENSe:]VOLTage[:DC]:REFerence? NR3 numerical data
[:SENSe:]VOLTage:AC:REFerence NRf numerical data 0
[:SENSe:]VOLTage:AC:REFerence? NR3 numerical data
[:SENSe:]CURRent:DC:REFerence NRf numerical data 0
[:SENSe:]CURRent:DC:REFerence? NR3 numerical data
[:SENSe:]CURRent:AC:REFerence NRf numerical data 0
[:SENSe:]CURRent:AC:REFerence? NR3 numerical data
[:SENSe:]RESistance:REFerence NRf numerical data 0
[:SENSe:]RESistance:REFerence? NR3 numerical data
[:SENSe:]LPResistance:REFerence NRf numerical data 0
[:SENSe:]LPResistance:REFerence? NR3 numerical data
[:SENSe:]FRESistance:REFerence NRf numerical data 0
[:SENSe:]FRESistance:REFerence? NR3 numerical data
[:SENSe:]LPFResistance:REFerence NRf numerical data 0
[:SENSe:]LPFResistance:REFerence? NR3 numerical data
[:SENSe:]CLAMp:DC:REFerence NRf numerical data 0
[:SENSe:]CLAMp:DC:REFerence? NR3 numerical data
[:SENSe:]CLAMp:AC:REFerence NRf numerical data 0
[:SENSe:]CLAMp:AC:REFerence? NR3 numerical data

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Set and inquiry concerning Zero-Adjust execution

Command Input/output data format Initial value

[:SENSe:]VOLTage[:DC]:REFerence:STATe ON/OFF or 1/0 OFF
[:SENSe:]VOLTage[:DC]:REFerence:STATe? ON/OFF
[:SENSe:]VOLTage:AC:REFerence:STATe ON/OFF or 1/0 OFF
[:SENSe:]VOLTage:AC:REFerence:STATe? ON/OFF
[:SENSe:]CURRent:DC:REFerence:STATe ON/OFF or 1/0 OFF
[:SENSe:]CURRent:DC:REFerence:STATe? ON/OFF
[:SENSe:]CURRent:AC:REFerence:STATe ON/OFF or 1/0 OFF
[:SENSe:]CURRent:AC:REFerence:STATe? ON/OFF
[:SENSe:]RESistance:REFerence:STATe ON/OFF or 1/0 OFF
[:SENSe:]RESistance:REFerence:STATe? ON/OFF
[:SENSe:]LPResistance:REFerence:STATe ON/OFF or 1/0 OFF
[:SENSe:]LPResistance:REFerence:STATe? ON/OFF
[:SENSe:]FRESistance:REFerence:STATe ON/OFF or 1/0 OFF
[:SENSe:]FRESistance:REFerence:STATe? ON/OFF
[:SENSe:]LPFResistance:REFerence:STATe ON/OFF or 1/0 OFF
[:SENSe:]LPFResistance:REFerence:STATe? ON/OFF
[:SENSe:]CLAMp:DC:REFerence:STATe ON/OFF or 1/0 OFF
[:SENSe:]CLAMp:DC:REFerence:STATe? ON/OFF
[:SENSe:]CLAMp:AC:REFerence:STATe ON/OFF or 1/0 OFF
[:SENSe:]CLAMp:AC:REFerence:STATe? ON/OFF

Set and inquiry concerning sampling period

Command Input/output data format Initial value

:SAMPle:RATE FAST/MEDium/SLOW SLOW
:SAMPle:RATE? FAST/MEDIUM/SLOW

Set and inquiry concerning average function

Command Input/output data format Initial value

:CALCulate:AVERage NRf numerical data (2 to 100) 2
:CALCulate:AVERage? NR1 numerical data
:CALCulate:AVERage:STATe ON/OFF or 1/0 OFF
:CALCulate:AVERage:STATe? ON/OFF

Set and inquiry concerning comparator buzzer sound

Command Input/output data format Initial value

:CALCulate:LIMit:BEEPer OFF/IN/FAIL/HL HL
:CALCulate:LIMit:BEEPer? OFF/IN/HL

Set and inquiry concerning the comparator upper-limit value

Command Input/output data format Initial value

:CALCulate:LIMit:UPPer NRf numerical data 0
:CALCulate:LIMit:UPPer? NR1 numerical data

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Set and inquiry concerning comparator lower-limit value

Command Input/output data format Initial value

:CALCulate:LIMit:LOWer NRf numerical data 0
:CALCulate:LIMit:LOWer? NR1 numerical data

Set and inquiry concerning comparator execution

Command Input/output data format Initial value

:CALCulate:LIMit:STATe ON/OFF or 1/0 OFF
:CALCulate:LIMit:STATe? ON/OFF

Inquiry concerning comparator determination

Command Input/output data format Initial value

:CALCulate:LIMit:FAIL? HI/IN/LO/OFF/ERROR

Set and inquiry concerning key operation sound

Command Input/output data format Initial value

:SYSTem:BEEPer:STAT e ON/OFF or 1/0 ON
:SYSTem:BEEPer:STATe? ON/OFF

Set and inquiry concerning power-supply frequency

Command Input/output data format Initial value

:SYSTem:LFRequency 50/60 60
:SYSTem:LFRequency? 50/60

Set and inquiry concerning Key Lock

Command Input/output data format Initial value

:SYSTem:KLOCk ON/OFF or 1/0 OFF
:SYSTem:KLOCk? ON/OFF

Panel Save and Panel Load

Command Input/output data format Initial value

:SYSTem:SAVe NRf numerical data
:SYSTem:LOAD NRf numerical data

Set and inquiry concerning Format

Command Input/output data format Initial value

:SYSTem:FORMat NR1 numerical data 1
:SYSTem:FORMat? 1/2

Set and inquiry concerning header On/Off

Command Input/output data format Initial value

:SYSTem:HEADer ON/OFF or 1/0 OFF
:SYSTem:HEADer? ON/OFF

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Set and inquiry concerning delimiter

Command Input/output data format Initial value

:SYSTem:TERMinator NR1 numerical data 1
:SYSTem:TERMinator? 0/1 (0: LF, 1: CR+LF)

Set and inquiry concerning Continuous Trigger state

Command Input/output data format Initial value

:INITiate:CONTinuous ON/OFF or 1/0 ON
:INITiate:CONTinuous? ON/OFF

Setup of Trigger Wait state

Command Input/output data format Initial value

:INITiate[:IMMediate] Command

Set and inquiry concerning trigger source

Command Input/output data format Initial value

:TRIGger:SOURce IMMediate/EXTernal IMM
:TRIGger:SOURce? IMMediate/EXTernal

Last measurement-value read-out

Command Input/output data format Initial value

FETCh? NR3 numerical data

Measurements (Await Trigger and Measurement-Value Read-out)

Command Input/output data format Initial value

READ? NR3 numerical data

Set and inquiry concerning trigger delay time

Command Input/output data format Initial value

:TRIGger:DELay NRf numerical data 0
:TRIGger:DELay? NR3 numerical data

Set and inquiry concerning Auto Trigger Delay

Command Input/output data format Initial value

:TRIGger:DELay:AUTO ON/OFF or 1/0 ON
:TRIGger:DELay:AUTO? ON/OFF

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Presetting of Ranges and Functions

Command Input/output data format Initial value

:CONFigure:VOLTage[:DC]? NRf numerical data
:CONFigure:VOLTage:AC? NRf numerical data
:CONFigure:CURRent:DC? NRf numerical data
:CONFigure:CURRent:AC? NRf numerical data
:CONFigure:RESistance? NRf numerical data
:CONFigure:LPResistance? NRf numerical data
:CONFigure:FRESistance? NRf numerical data
:CONFigure:LPFResistance? NRf numerical data
:CONFigure:CLAMp:DC? NRf numerical data
:CONFigure:CLAMp:AC? NRf numerical data
:CONFigure:FREQuency? NRf numerical data
:CONFigure:DIODe? NRf numerical data

Inquiry concerning preset functions

Command Input/output data format Initial value

:CONFigure? VOLTAGE:DC/

VOLTAGE:AC/CURRENT:DC/
CURRENT:AC/RESISTANCE/

LPRESISTANCE/FRESISTANCE/

LPFRESISTANCE/FREQUENCY/

CONTINUITY/DIODE/CLAMP:DC/

CLAMP:AC

Measurement with a Specified Range and Function Preset

Command Input/output data format Initial value

:MEASure:VOLTage[:DC]? NRf numerical data
:MEASure:VOLTage:AC? NRf numerical data
:MEASure:CURRent:DC? NRf numerical data
:MEASure:CURRent:AC? NRf numerical data
:MEASure:RESistance? NRf numerical data
:MEASure:LPResistance? NRf numerical data
:MEASure:FRESistance? NRf numerical data
:MEASure:LPFResistance? NRf numerical data
:MEASure:CLAMp:DC? NRf numerical data
:MEASure:CLAMp:AC? NRf numerical data
:MEASure:FREQuency? NRf numerical data
:MEASure:DIODe? NRf numerical data

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7.4 Command Reference

7.4.1 Explanation of Command Reference

Command

Indicates functions of command reference

Syntax

data

Function

Note

Response

syntax

Example

Indicates the command syntax.
Indicates the data format for a command that includes data.
Describes points that require special attention when using the command.
Indicates the what kinds of errors might occur.
Indicated only for commands for which a response message is returned.

Shows a simple example illustrating transmissions are indicated in "short form."

NOTE

The syntax items indicated between brackets [ ] in the command reference may be omitted.

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7.4.2 Common Command Messages
∗CLS command

Clears the status byte register and the event registers.

Syntax

Function

Note

∗CLS

This instruction clears the event registers and the bits of the status byte register associated with that
register (SESR, STB).

This has no effect upon the output queue, the various enable registers, or bit 4 (the MAV bit) of the
status byte register.

∗ESE command

Sets the standard event status enable register.

Syntax

data

Function

Note

Example

∗ESE data

NR1 numerical data numerical data
0 to 255

This command sets the available patterns of the standard event status register (SESR) to the
standard event status enable register (SESER).

When the power is turned on, the data is reinitialized to 0.

Transmission ∗ESE 36
CME and QYE of the standard event status enable register are both set to "1."

bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0

PON URQ CME EXE DDE QYE RQC OPC

Standard event status enable resister (SESER)

∗ESE? command

Read the standard event status enable register (SESER).

Syntax

Function

Response

syntax

Example

∗ESE?

The contents of SESER are returned as a NR1 numerical data value (0 to 255).

Headers: ON ∗ESE data
Headers: OFF data

Headers: OFF
Transmission ∗ESE?
Response 36

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∗ESR? command

Queries out and clears the contents of the standard event status register (SESR).

Syntax

Function

Response

syntax

Example

∗ESR?

This command returns the contents of the standard event status register (SESR) in NR1 numerical
data format (data) (ranging from 0 to 255), then clears the register.

Headers: ON ∗ESR data
Headers: OFF data

Headers: OFF
Transmission ∗ESE?
Response 36

∗IDN? command

Queries device ID.

Syntax

Function

Note

Response

syntax

∗IDN?

Queries device ID (manufacturer's name, model name, software version.
The ∗IDN? query is the last query message of the program messages. No further response is output.

HIOKI,3237,0,V2.00

First field Manufacturer's name
Second field Model name
Third field Not used - always "0"
Fourth field Software version

Example

Headers: ON
Transmission ∗IDN?
Response ∗IDN HIOKI,3237,0,V2.00
Headers: OFF
Transmission ∗IDN?
Response HIOKI,3237,0,V2.00

∗OPC command

Sets the standard event status register bit0 (OPC bit) to "1."

Syntax

Function

Example

∗OPC

This command sets the stand ard event status register (SESR) bit0 (OPC bit) to "1" when all actions
specified by messages and occurring before the ∗OPC command are complete.

Transmission ∗RST;:MEAS:RES?;∗OPC

This command sets the specified bit to "1" when all ∗RST and MEAS actions
are complete.

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∗OPC? command

Returns a "1" instead of setting the SESR bit0 (OPC bit) to "1."

Syntax

Function

Response

syntax

Example

∗OPC?

The same as the ∗OPC command, except in that, at the instant that the previous commands have
been completed, instead of bit 0 (the OPC bit) of the standard event status register (SESR) being
set to 1, the response message "1" is returned.

Headers: ON ∗OPC 1
Headers: OFF 1

Transmission ∗RST;:MEAS:RES?;∗OPC?

Returns a "1" when all ∗RST and MEAS actions are complete.

∗RST command

Initializes the settings.

Syntax

Function

Note

∗RST

Resets and initializes the main unit.
For initialized data, refer to 5.8 System Reset.

If any data follows the command, a command error is generated.

Data not affected by the initialization

Status byte register, Standard event status register, Enable registers, Interface function, GP­IB address, Output queue, Input buffer, Current pass

∗SRE command

Sets the service request enable register (SRER).

Syntax

data

Function

Note

Example

∗SRE data

NR1 numerical data
0 to 255

This command sets the available patterns of the service request enable resister (SRER) to the status
byte register (STB).

When 3237/38/39 is turned on or I/F is switched, the data is reset to "0."
Bit 6 is set to 0.

Transmission ∗SRE 32

Explanation of example: the service request enable register ESB is set to
"1."

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∗SRE? command

Queries the service request enable register (SRER).

Syntax

Function

Response

syntax

Example

∗SRE?

Returns the value of the service request enable register (SRER) set by the ∗SRE command as a
numerical data value in NR1 format taken from the set: 0 to 255.

Headers: ON SRE data
Headers: OFF data

Transmission ∗SRE?
Response 32

∗STB? command

Queries

the status byte register.

Syntax

Function

Note

Example

∗STB?

Returns the set contents of the status byte register (STB) as a numerical data value in NR1 format
(0,16,32,48).

The value in the MSS bit represents bit6. The MSS bit remains uncleared, even if the service
request is cleared by the serial poll.

Transmission ∗STB?
Response 32

∗TRG command

Request for sampling

Syntax

Function

∗TRG

This command executes one sampling cycle while the 3237/38/39 is in Trigger Wait state.

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∗TST? command

Requests execution of, and queries the result of, the self test.

Syntax

Function

Response

syntax

Example

∗TST?

Causes the 3237/38/39 to perform the self test, and returns the result there of as a numerical data
value in NR1 format (0 to 7).
The results are shown below. When each bit is set to "1," an associated error ha s occurred.

Headers: ON ∗TST data
Headers: OFF data

Headers: OFF
Transmission ∗TST?
Response 2

RAM error

bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0

Not used Not used Not used Not used Not used Not used

∗WAI command

Waits until previous event is completed.

Syntax

Function

∗WAI

The next command executes after the command now executing.

RAM ROM

Note

Executing the ∗WAI command has no effect, since the 3237/38/39 specific commands all involve
sequential-type commands.
The ∗WAI command is accepted, since it is a common command for the
IEEE488.2 1987 standard.

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7.4.3 Specific Command Messages

Event Status Register 0

Sets the event status enable register 0.

Syntax

data

Function

Note

:ESE data

NR1 numerical data numerical data
0 to 255

This command sets the available patterns of the standard event status register (SESR) to the event
status enable register 0 (ESER0).

When the power is turned on, the data is reinitialized to 0.

bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0

Not used Not used

-OF +OF HI IN LO EOC

Event status enable resister 0 (ESER0)

Read the event status enable register 0.

Syntax

Function

:ESE?

The contents of ESE R0 are returned as a NR1 numerical data value (0 to 255).

Read the event status register 0.

Syntax

Function

:ESR0?

This command returns the contents of the event status register 0 (ESR0) in NR1 numerical data
format (data) (ranging from 0 to 255), then clears the register.

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Measurement Composition Command

Selection of measurement functions

Syntax

data

Function

Note

Example

[:SENSe:]FUNCtion data

Character data

'VOLTage[:DC]' DC voltage measurement
'VOLTage:AC' AC voltage measurement
'CURRent:DC' DC current measurement
'CURRent:AC' AC current measurement
'RESistance' 2-terminal resistance measurement
'LPResistance' Low-power 2-terminal resistance measurement
'FRESistance' 4-terminal resistance measurement
'LPRFesistance' Low-power 4-terminal resistance measurement
'CLAMp:DC' DC clamp current measurement
'CLAMp:AC' AC clamp current measurement
'FREQuency' Frequency measurement
'CONTinuity' Continuity test
'DIODe' Diode test

Selects a measurement function.

data must be enclosed in single quotation marks.
[:SENSe:] may be omitted.

Transmission FUNC 'VOLT:DC'

Sets the DC voltage measurement function.

Inquiry concerning measurement function

Syntax

data

Function

Response

syntax

Example

[:SENSe:]FUNCtion?

Character data

'VOLTAGE:DC','VOLTAGE:AC','CURRENT:DC','CURRENT:AC','RESISTANCE',
'LPRESISTANCE','FRESISTANCE','LPRFESISTANCE','CLAMP:DC','CLAMP:AC',
'FREQUENCY','CONTINUITY','DIODE'

Returns the currently set measurement function in a character string enclosed in single quotation
marks.

Headers: ON :SENSE:FUNCTION data
Headers: OFF data

Headers: ON
Transmission :SENS:FUNC?
Response :SENSE:FUNCTION 'RESISTANCE'
Headers: OFF
Transmission :SENS:FUNC?
Response 'RESISTANCE'

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Range setup

Syntax

data

Function

Note

Example

[:SENSe:]VOLTage[:DC]:RANGe data
[:SENSe:]VOLTage:AC:RANGe data
[:SENSe:]CURRent:DC:RANGe data
[:SENSe:]CURRent:AC:RANGe data
[:SENSe:]RESistance:RANGe data
[:SENSe:]LPResistance:RANGe data
[:SENSe:]FRESistance:RANGe data
[:SENSe:]LPFResistance:RANGe data
[:SENSe:]CLAMp:DC:RANGe data
[:SENSe:]CLAMp:AC:RANGe data
[:SENSe:]FREQuency:VOLTage:RANGe data

NRf numerical data
Input the expected measurement value. The unit automatically selects the optimum range for
measuring the given entered value.

Sets a range for the selected meas urement function.

Any attempt to set a range outside measurement range for the specified measurement function
will result in an execution error.
In the case of the frequency measurement function, the range set is for input voltages (attenuator
range), not frequencies.

Transmission :SENS:VOLT:DC:RANGe -300

Sets the DC voltage measurement function to the 1000 V range.

RES:RANG 800

Sets the resistance measurement function to the 2000 Ω range.

:SENS:FREQ:VOLT:RANG 1.5

Sets the attenuator range to the 2 V range in a frequency measurement.

Inquiry concerning range

Syntax

data

Function

Response

syntax

Example

[:SENSe:]VOLTage[:DC]:RANGe?
[:SENSe:]VOLTage:AC:RANGe?
[:SENSe:]CURRent:DC:RANGe?
[:SENSe:]CURRent:AC:RANGe?
[:SENSe:]RESistance:RANGe?
[:SENSe:]LPResistance:RANGe?
[:SENSe:]FRESistance:RANGe?
[:SENSe:]LPFResistance:RANGe?
[:SENSe:]CLAMp:DC:RANGe?
[:SENSe:]CLAMp:AC:RANGe?
[:SENSe:]FREQuency:VOLTage:RANGe?

NR3 numerical data
Inquires about the range of the specified measurement function.

Headers: ON :SENSE:LPRESISTANCE:RANGE data
Headers: OFF data

Headers: ON
Transmission CURR:AC:RANG?
Response :SENSE:CURRENT:AC:RANGE 199.999E-03
Headers: OFF
Transmission CURR:AC:RANG?
Response 199.999E-03

The AC current measurement range is 200 mA.

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Setup for Auto Range

Syntax

data

Function

Example

[:SENSe:]VOLTage[:DC]:RANGe:AUTO
[:SENSe:]VOLTage:AC:RANGe:AUTO
[:SENSe:]CURRent:DC:RANGe:AUTO
[:SENSe:]CURRent:AC:RANGe:AUTO
[:SENSe:]RESistance:RANGe:AUTO
[:SENSe:]LPResistance:RANGe:AUTO
[:SENSe:]FRESistance:RANGe:AUTO
[:SENSe:]LPFResistance:RANGe:AUTO

ON/1: Auto Range enabled.
OFF/0: Auto Range disabled.

Selects to enable or disable Auto Range of th specified measurement function.

Transmission :SENSE:VOLT:AC:RANG:AUTO ON
VOLT:AC:RANG:AUTO 0

Inquiry concerning Auto Range

Syntax

[:SENSe:]VOLTage[:DC]:RANGe:AUTO?
[:SENSe:]VOLTage:AC:RANGe:AUTO?
[:SENSe:]CURRent:DC:RANGe:AUTO?
[:SENSe:]CURRent:AC:RANGe:AUTO?
[:SENSe:]RESistance:RANGe:AUTO?
[:SENSe:]LPResistance:RANGe:AUTO?
[:SENSe:]FRESistance:RANGe:AUTO?
[:SENSe:]LPFResistance:RANGe:AUTO?

data

Function

Response

syntax

Example

Character data
ON/OFF

Inquires whether the specified measurement function is set in Auto Range or not.

Headers: ON :SENSE:CURRENT:DC:RANGE:AUTO data
Headers: OFF data

Headers: ON
Transmission RES:RANG:AUTO?
Response :SENSE:RESISTANCE:RANGE:AUTO ON
Headers: OFF
Transmission RES:RANG:AUTO?
Response ON

The resistance measurement function is in Auto Range.

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Setup for clamp sensor

Syntax

data

Function

Example

[:SENSe:]CLAMp:MODel data

NRf numerical data
9010,9132,9018,3283,9 270, 9271,9272,9277,9278,9279,3284, 3285

Selects the clamp sensor to be used in clamp current measurement.

Transmission CLAM:MOD 9132

Inquiry concerning clamp sensor

Syntax

data

Function

Response

syntax

[:SENSe:]CLAMp:MODel?

NR1 numerical data
Inquires about the model of the clamp sensor currently set.

Headers: ON :SENSE:CLAMP:MODEL data
Headers: OFF data

Setup for Zero-Adjusted value

Syntax

[:SENSe:]VOLTage[:DC]:REFerence data
[:SENSe:]VOLTage:AC:REFerence data
[:SENSe:]CURRent:DC:REFerence data
[:SENSe:]CURRent:AC:REFerence data
[:SENSe:]RESistance:REFerence data
[:SENSe:]LPResistance:REFerence data
[:SENSe:]FRESistance:REFerence data
[:SENSe:]LPFResistance:REFerence data
[:SENSe:]CLAMp:DC:REFerence data
[:SENSe:]CLAMp:AC:REFerence data
[:SENSe:]FREQuency:REFerence data

data

Function

Note

Example

NRf numerical data
Sets the Zero-Adjsted value. When the Zero-Adjust function is active, the unit returns a

measurement value obtained by subtracting the Zero-Adjusted value.
If the NRf numerical value data is set to a value larger than the maximum value (minimum value, if

negative) that can be measured with each function, an execution error will be issued.

Transmission VOLT:REF 13.63

Sets 13.63 V as the Zero-Adjusted value of the DC voltage measurement
function. When the Zero-Adjust function is active, the unit outputs a value that
results from subtracting 13.63 V as the measurement value.

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Inquiry concerning the Zero-Adjusted value.

Syntax

data

Function

Response

syntax

Example

[:SENSe:]VOLTage[:DC]:REFerence?
[:SENSe:]VOLTage:AC:REFerence?
[:SENSe:]CURRent:DC:REFerence?
[:SENSe:]CURRent:AC:REFerence?
[:SENSe:]RESistance:REFerence?
[:SENSe:]LPResistance:REFerence?
[:SENSe:]FRESistance:REFerence?
[:SENSe:]LPFResistance:REFerence?
[:SENSe:]CLAMp:DC:REFerence?
[:SENSe:]CLAMp:AC:REFerence?
[:SENSe:]FREQuency:REFerence?

NR3 numerical data
Inquires about the Zero-Adjusted value.

Headers: ON :SENSE:VOLTAGE:AC:REFERENCE data
Headers: OFF data

Headers: ON
Transmission CURR:DC:REF?
Response :SENSE:CURRENT:DC:REFERENCE 6.320000E-02
Headers: OFF
Transmission CURR:DC:REF?
Response 6.320000E-02

The Zero-Adjusted value in a DC current measurement is 63.2 mA.

Setup for Zero-Adjust execution

Syntax

data

Function

Example

[:SENSe:]VOLTage[:DC]:REFerence:STATe data
[:SENSe:]VOLTage:AC:REFerenceSTATe data
[:SENSe:]CURRent:DC:REFerence:STATe data
[:SENSe:]CURRent:AC:REFerence:STATe data
[:SENSe:]RESistance:REFerence:STATe data
[:SENSe:]LPResistance:REFerence:STATe data
[:SENSe:]FRESistance:REFerence:STATe data
[:SENSe:]LPFResistance:REFerence:STATe data
[:SENSe:]CLAMp:DC:REFerence:STATe data
[:SENSe:]CLAMp:AC:REFerence:STATe data
[:SENSe:]FREQuency:REFerence:STATe data

ON/1: Zero-Adjust function enabled.
OFF/0: Zero-Adjust function disabled.

Selects whether the Zero-Adjusted value set for the specified measurement function is to be
subtracted or not.

Transmission :SENS:CURR:AC:REF:STAT 1

Enables the Zero-Adjust function of the AC current measurement function.

RES:REF:STAT OFF

Disables the Zero-Adjust function of the resistance measurement function.

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Inquiry concerning Zero-Adjust execution

Syntax

data

Function

Response

syntax

Example

[:SENSe:]VOLTage[:DC]:REFerence:STATe?
[:SENSe:]VOLTage:AC:REFerence:STATe?
[:SENSe:]CURRent:DC:REFerence:STATe?
[:SENSe:]CURRent:AC:REFerence:STATe?
[:SENSe:]RESistance:REFerence:STATe?
[:SENSe:]LPResistance:REFerence:STATe?
[:SENSe:]FRESistance:REFerence:STATe?
[:SENSe:]LPFResistance:REFerence:STATe?
[:SENSe:]CLAMp:DC:REFerence:STATe?
[:SENSe:]CLAMp:AC:REFerence:STATe?
[:SENSe:]FREQuency:REFerence:STATe?

Character data
ON/OFF

Inquires whether the Zero-Adjust function of the specified measurement function is enabled or
disabled.

Headers: ON :SENSE:LPRESISTANCE:REFERENCE:STATE data
Headers: OFF data

Headers: ON
Transmission FREQ:REF:STAT?
Response :SENSE:FREQUENCY:REFERENCE:STATE OFF
Headers: OFF
Transmission FREQ:REF:STAT?
Response OFF

The Zero-Adjust function of the frequency measurement function is disabled.

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SamplingCommands

Setup for sampling period

Syntax

data

Function

Example

:SAMPle:RATE data

Chatacter data
FAST,MEDium,SLOW

Switches the sampling period.

Transmission SAMPle:RATE MED

Sets the sampling period to MEDIUM.

Inquiry concerning sampling period

Syntax

data

Function

Response

syntax

Example

:SAMPle:RATE?

Character data
FAST,MEDIUM,SLOW

Inquires about the sampling period currently set.

Headers: ON :SAMPLE:RATE data
Headers: OFF data

Headers: ON
Transmission :SAMP:RATE?
Response :SAMPLE:RATE FAST
Headers: OFF
Transmission :SAMP:RATE?
Response FAST

The sampling period is FAST.

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ComputingFunction Commands

Setup for the number of averaged measurements

Syntax

data

Function

Example

:CALCulate:AVERage data

NRf numerical data
2 to 100

Sets a number of averaged measurements.

Transmission :CALC:AVER 10

Sets the number of averaged measurements to 10.

Inquiry concerning the number of averaged measurements

Syntax

data

Function

Response

syntax

Example

:CALCulate:AVERage?

NR1 numerical data
2 to 100

Inquires about the number of averaged measurements currently set.

Headers: ON :CALCULATE:AVERAGE data
Headers: OFF data

Headers: ON
Transmission :CALC:AVER?
Response :CALCULATE:AVERAGE 10
Headers: OFF
Transmission :CALC:AVER?
Response 10

The number of averaged measurements is 10.

Setup for average execution

Syntax

data

Function

Example

:CALCulate:AVERage:STATe data

ON/1: Averaging function enabled
OFF/0: Averaging function disabled

Sets the average execution.

Transmission :CALC:AVER:STAT 1

Enables the averaging function.

Inquiry concerning average execution

Syntax

data

Function

Response

syntax

:CALCulate:AVERage:STATe?

Character data
ON/OFF

Inquires whether the averaging function is enabled or disabled.

Headers: ON :CALCULATE:AVERAGE:STATE data
Headers: OFF data

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Setup for comparator buzzer sound

Syntax

data

Function

Note

Example

:CALCulate:LIMit:BEEPer data

Character data
OFF,IN,FAIL,HL

Sets the buzzer sound to beep according to the comparator determination.
HL is the same as FAIL.

Transmission :CALC:LIM:BEEP IN

Activates the buzzer when the comparator determination is IN.

Inquiry concerning comparator buzzer sound

Syntax

data

Function

Response

syntax

Example

:CALCulate:LIMit:BEEPer?

Character data
OFF,IN,HL

Inquires about the setting that activates the buzzer at the comparator determination.

Headers: ON :CALCULATE:LIMIT:BEEPER data
Headers: OFF data

Headers: ON
Transmission :CALC:LIM:BEEP?
Response :CALCULATE:LIMIT:BEEPER FAIL
Headers: OFF
Transmission :CALC:LIM:BEEP?
Response FAIL

If the determination is FAIL (Hi, Lo), the buzzer beeps.

Setup for comparator upper-limit value

Syntax

data

Function

Note

Example

:CALCulate:LIMit:UPPer data

NRf numerical data

-199999 to 199999
Sets the upper-limit value to be used for comparator determination in a count value.
For example, if the upper-limit value is set to 123456 in the DC2 V range, the comparator

determines a Hi sett ing when the measurement value is greater than 1.23456 V.

Transmission :CALC:LIM:UPP 156000

Sets the comparator upper-limit value to 156000.

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Inquiry concerning the comparator upper-limit value

Syntax

data

Function

Response

syntax

Example

:CALCulate:LIMit:UPPer?

NR1 numerical data

-199999 to 199999
Inquires about the upper-limit value of the comparator.

Headers: ON :CALCULATE:LIMIT:UPPER data
Headers: OFF data

Headers: ON
Transmission :CALC:LIM:UPP?
Response :CALCULATE:LIMIT:UPPER 130000
Headers: OFF
Transmission :CALC:LIM:UPP?
Response 130000

The upper-limit value of the comparator is 130000.

Setup for comparator lower-limit value

Syntax

data

:CALCulate:LIMit:LOWer data

NRf numerical data

-199999 to 199999

Function

Example

Sets the lower-limit value to be used for comparator deter mination in a count value.

Transmission :CALC:LIM:LOW 145000

Sets the comparator lower-limit value to 145000.

Inquiry concerning comparator lower-limit value

Syntax

data

Function

Response

syntax

Example

:CALCulate:LIMit:LOWer?

NR1 numerical data

-199999 to 199999
Inquires about the lower-limit value of the comparator.

Headers: ON :CALCULATE:LIMIT:LOWER data
Headers: OFF data

Headers: ON
Transmission :CALC:LIM:LOW?
Response :CALCULATE:LIMIT:LOWER 120000
Headers: OFF
Transmission :CALC:LIM:LOW?
Response 120000

The lower-limit value of the comparator is 120000.

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Setup for comparator execution

Syntax

data

Function

Note

Example

:CALCulate:LIMit:STATe data

ON/1: Comparator function enabled
OFF/0: Comparator function disabled

Selects whether the comparator function is to be executed or not.
An execution error will be issued, if the comparator upper-limit value is smaller than the lower-limit

value.

Transmission :CALC:LIM:STAT ON

Executes the comparator.

Inquiry concerning comparator execution

Syntax

data

Function

Response

syntax

:CALCulate:LIMit:STATe?

Character data
ON/OFF

Inquires whether the comparator function is being executed or no t.

Headers: ON :CALCULATE:LIMIT:STATE data
Headers: OFF data

Example

Headers: ON
Transmission :CALC:LIM:STAT?
Response :CALCULATE:LIMIT:STATE ON
Headers: OFF
Transmission :CALC:LIM:STAT?
Response ON

The comparator function is being executed.

Inquiry concerning comparator determination

Syntax

data

Function

Response

syntax

Example

:CALCulate:LIMit:FAIL?

IN: The measurement value is between the upper-limit and lower-limit values (IN).
HI: The measurement value is greater than the upper-limit value (Hi).
LO: The measurement value is smaller than the lower-limit value (Lo).
OFF: The comparator function is disabled.

:CALCULATE:LIMIT:STATE 0

ERROR: The comparator upper-limit value is set below its lower-limit value.
Inquires about the comparator determination.

Headers: ON CALCULATE:LIMIT:FAIL data
Headers: OFF data

Headers: ON
Transmission :CALC:LIM:FAIL?
Response :CALCULATE:LIMIT:FAIL IN
Headers: OFF
Transmission :CALC:LIM:FAIL?
Response IN

The comparator determination is IN.

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87

System-related Commands

Setup for key operation sound

Syntax

data

Function

Example

:SYSTem:BEEPer:STAT e data

ON/1: Key operation sound enabled
OFF/0: Key operation s ound disabled

Sets the key operation sound.

Transmission :SYST:BEEP:STAT 1

Key operation sound enabled.

Inquiry concerning key operation sound

Syntax

data

Function

Response

syntax

Example

:SYSTem:BEEPer:STATe?

Character data
ON/OFF

Inquires about the setting for the key operation sound.

Headers: ON :SYSTEM:BEEPER:STATE data
Headers: OFF data

Headers: ON
Transmission :SYST:BEEP:STAT?
Response :SYSTEM:BEEPER:STATE OFF
Headers: OFF
Transmission :SYST:BEEP:STAT?
Response OFF

Setup for power-supply frequency

Syntax

data

Function

Example

:SYSTem:LFRequency data

50: This is specified when the frequency of the power supplied to this unit is 50 Hz.
60: This is specified when the frequency of the power supplied to this unit is 60 Hz.

Specifies the frequency of the power supplied to this unit.

Transmission :SYST:LFR 50

Indicates to the main unit that the frequency of the power being supplied is
50 Hz.

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88

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Inquiry concerning power-supply frequency

Syntax

data

Function

Response

syntax

Example

:SYSTem:LFRequency?

NR1 numerical data
50,60

Inquires about the setting for the power-supply frequency.

Headers: ON :SYSTEM:LFREQUENCY data
Headers: OFF data

Headers: ON
Transmission :SYST:LFR?
Response :SYSTEM:LFREQUENCY 60
Headers: OFF
Transmission :SYST:LFR?
Response 60

The power-supply frequency of the unit is set to 60 Hz.

Setup for Key Lock

Syntax

data

:SYSTem:KLOCk data

ON/1: Sets the Key Lock state.
OFF/0: Clears the Key Lock state.

Function

Example

Sets the Key Lock state.

Transmission :SYST:KLOC ON

Disables key operations on the front panel.

Inquiry concerning Key Lock

Syntax

data

Function

Response

syntax

Example

:SYSTem:KLOCk?

Character data
ON/OFF

Inquires about the state of Key Lock.

Headers: ON :SYSTEM:KLOCK data
Headers: OFF data

Headers: ON
Transmission :SYST:KLOC?
Response :SYSTEM:KLOCK ON
Headers: OFF
Transmission :SYST:KLOC?
Response ON

Key operations on the main unit are disabled.

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89

Panel Save

Syntax

data

Function

Example

:SYSTem:SAVe data

NRf numerical data
1to30

Saves the current measurement conditions to the built-in nonvolatile memory.

Transmission :SYST:SAV 3

Saves the measurement conditions under Panel No. 3.

Panel Load

Syntax

data

Function

Example

:SYSTem:LOAD data

NRf numerical data
1to30

Loads the current measurement conditions from the built-in nonvolatile memory.

Transmission :SYST:LOAD 27

Loads the measurement conditions from Panel No. 27.

Setup for Format

Syntax

:SYSTem:FORMat data

data

Function

NOTE

Example

1: FORMAT1
2: FORMAT2

Sets a format.
For more information, please refer to APPENDIX (6) "Using FORMAT2 on Measurement Data."

Transmission :SYST:FORM 2

sets the format to FORMAT2.

Inquiry concerning Format

Syntax

data

Function

Response

syntax

Example

:SYSTem:FORMat?

NR1 numerical data
1or2

Inquires about the setting of the format.

Headers: ON :SYSTEM:FORMAT data
Headers: OFF data

Headers: ON
Transmission :SYST:FORM?
Response :SYSTEM:FORMAT 1
Headers: OFF
Transmission :SYST:FORM?
Response 1

The format is FORMAT1.

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7.4 Command Reference