Hioki 3237, 3237-01, 3238, 3238-01, 3239 Instruction Manual

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3237 3237-01 3238 3238-01 3239 3239-01

DIGITAL HiTESTER

Instruction Manual

Oct. 2018 Revised edition 15 3237A981-15 18-10H

Introduction i Inspection Safety Notes Notes on Use Chapter Summary

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

1 2

2.3 Power On/Off

2.4 Selection of Power-supply Frequency

10 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

3237A981-15

3.6 Frequency Measurement (3238/39)

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

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

39 40 42

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

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

7.7 Compatibility with the ADVANTEST Digital Multimeter

7.8 Sample Program

53 62

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

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

Appendix APPENDIX1

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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.

Accessories

L9170-10 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.

Inspection before use

When measuring a dangerous voltage or current, or when a measurement of high reliability is required, always carry out the following confirmation before using.

No damage to the power cord, test lead and the produt itself No inaccurate measurement values are shown when connected to a

measurement target with clear values (non-defective sample, calibrator, etc.) and under the setting for the test conditions used by the customer

NOTE

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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.

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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

DANGER

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

______________________________________________________________________________________________

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

Measurement categories

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

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.) CAT II covers directly measuring electrical outlet receptacles.

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 (distribution panel).

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

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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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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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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.

______________________________________________________________________________________________

_____________________________________________________________________________________________

Chapter 1

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

(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.

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1.2 Major Features

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1.3 Names and Functions of Parts

1.3.1 Front Panel

CLAMP

terminal

COM terminal

3237

LED Display

Power switch

CLAMP

terminal

COM terminal

A-terminal

SENSE terminal

CLAMP

terminal

COM terminal

Operation keys

3238

LED Display

Power swtich

Operation keys

3239

LED Display

A-terminal

Operation keys

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1.3 Names and Functions of Parts

Power swtich

_____________________________________________________________________________________________

Operation keys

V V

LPΩ

SHIFT

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.

SMPL

SHIFT

ENT

AUTO

SHIFT+COMP

INT.TRIG

SHIFT+M.TRIG

0ADJ

SHIFT+LOAD

LOCK

SHIFT+LOCA L

AVE

SHIFT+SMPL

CLAMP

SHIFT

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.

CLAMP

SHIFT

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

1.3 Names and Functions of Parts

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Operation keys

4WΩ

SHIFT

4WΩ

SHIFT

SHIFT+ENT

Terminals

COM

CLAMP

SENSE

Switch

POWER

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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1.3 Names and Functions of Parts

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FUNCTION

LED display

CLAMP

FUNCTION

4W 2W

0ADJ

M.TRIG

AUTO

COMP

SET

FAST

MED

STATUS

SLOW

AVE

LOCK

RMT

SHIFT

COMP

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-terminal resistance measurement is performed. (3239) Lights up when a 2-terminal resistance measurement is performed. (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.

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

limit and lower-limit values.

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

value.

SHIFT

is pressed.

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1.3 Names and Functions of Parts

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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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1.3 Names and Functions of Parts

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Chapter 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 electrical accidents and to maintain the safety specifications of this instrument, connect the power cord provided only to a 3contact (two-conductor + ground) outlet.

. Confirm the power switch is OFF.

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

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

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

______________________________________________________________________________________________

2.1 Power Supply and Ground Connection

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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.

CLAMP terminal and SENSE terminal.

CLAMP terminal and SENSE terminal. Be

CAUTION

NOTE

CAUTION

Although CAT III, CAT IV are stated on the L9170-10 TEST LEAD, the DIGITAL HiTESTER is only compatible with CAT I and CAT II. To avoid electrocution, do not measure the lines of CAT III or CAT IV.

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

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

Removing and attaching the sleeves

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

Removing the sleeves

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

Attaching the sleeves

Insert the metal pins of the test leads into the holes of the sleeves, and firmly push them all the way in.

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2.2 Test Lead/Clamp Sensor Connection

_____________________________________________________________________________________________

3238

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

continuity test/ diode test/ frequency measurement

32393237/38

. Disconnect the L9170-10 TEST LEAD

from the sample being measured.

. Connect the black lead to the COM

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

Black

Red

Red L9170-10 TEST LEAD

(2) Current measurement

L9170-10 TEST LEAD

Black

3239

Black

Red

. Disconnect the L9170-10 TEST LEAD

from the sample being measured.

. Connect the black lead to the COM

terminal and the red lead to the Aterminal.

3237/38

Black

(3) Clamp current measurement

3239

Red

Clamp sensor connector

(4) 4-terminal resistance measurement

3239

Black

L2107 CLIP TYPE LEAD

Black

Red

. Disconnect the clamp sensor from the

sample being measured.

. Connect the black lead to the COM

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

. Disconnect the clamp sensor from the

sample being measured.

. Connect 4-terminal test leads like

those of the L2107 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.

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2.2 Test Lead/Clamp Sensor Connection

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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.

NOTE

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.

2.4 Selection of Power-supply Frequency

.Press

. Pressing

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

SHIFT

."SHIFT" lights up on the display.

ENT

opens the menu screen for entering various settings.

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

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

.Press to select a power-supply frequency.

. Pressing

.Press

NOTE

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2.4 Selection of Power-supply Frequency

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

ENT

causes "Fr" to flash.

ENT

again to define your selection.

, to avoid erroneous readings.

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Chapter 3

DANGER

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 seconda ry 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 600 VAC/DC (CAT II) or 1000 VAC/DC. (Cannot be used with CAT II, CAT III and CAT IV. Can be used when not directly connected to main power sources such as a battery or solar power, and transient overvoltage is below 2.5 kV.) . Do not apply any voltage to this terminal exceeding these ratings. The maximum rated voltage to ground of the COM terminal is 300 VAC/DC (CAT II) or 500 VAC/DC (Cannot be used with CAT II, CAT III and CAT IV. Can be used when not directly connected to main power sources such as a battery or solar power, and transient overvoltage is below 2.5 kV.). Do not apply any voltage to this terminal exceeding these ratings. The maximum rated voltage to ground of the A-terminal is 300 VAC/DC (CA T II) or 500 VAC/DC (Cannot be used with CAT II, CAT III and CA T IV. Can be used when not directly connected to main power sources such as a battery or solar power, and transient overvoltage is below 2.5 kV.). Do not apply any voltage to this terminal exceeding these ratings. The maximum rated voltage to ground of the SENSE terminal is 300 VAC/DC (CAT II) or 500 VAC/DC (Cannot be used with CAT II, CAT III and CA T IV. Can be used when not directly connected to main power sources such as a battery or solar power, and transient overvoltage is below 2.5 kV.). 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. If the test leads are open-circuited, live high voltage lines cannot be detected. After connecting the test leads, perform continuity tests to confirm that the test leads are not open-circuited. (See "3.4 Continuity Test".)

CLAMP

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3.1 Voltage Measurement

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

DANGER

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

L9170-10 TEST LEAD

Black

3.1.1 DC Voltage Measurement

. Make sure that "SHIFT" does not light on the display.

.Press

･

Check to make sure that the black lead of the L9170-10 TEST LEAD is connected to the COM terminal and the red lead to the V Ω CLAMP terminal.

Red

.Press to select a range. Or press

(See 4.1 Selection of Measurement Range.)

.Press

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.

3.1.2 AC Voltage Measurement

. Make sure that "SHIFT" does not light on the display.

.Press

.Press to select a range. Or press

(See 4.1 Selection of Measurement Range.)

.Press

(See 4.2 Switching of Sampling Period.)

SMPL

to select a sampling period.

AUTO

to select Auto Range.

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

______________________________________________________________________________________________

3.1 Voltage Measurement

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3.2 2-Terminal Resistance Measurement

DANGER

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

L9170-10 TEST LEAD

CLAMP terminal) and the sample to be measured. Connect the outer shield cover to the COM terminal. (Or use a shielded line, such as the 9326 CONNECTION CORD.) In case of using a dial resistor, connect the GUARD terminal to the COM terminal of the unit.

Black

Red

Check to make sure that the black lead of the L9170-10 TEST LEAD is connected to the COM terminal and the red lead to the V Ω CLAMP terminal.

”

3.2.1 Resistance Measurement (2-Terminal)

. Make sure that "SHIFT" does not light on the display.

.Press

.Press to select a range. Or press

(See 4.1 Selection of Measurement Range.)

.Press

(See 4.2 Switching of Sampling Period.)

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

(See 4.3 Zero Ajust Function.)

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

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

SMPL

to select a sampling period.

AUTO

to select Auto Range.

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3.2 2-Terminal Resistance Measurement

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3.2.2 Low-power Resistance Measurement (2-Terminal)

. Make sure that "SHIFT" does not light on the display.

.Press

.Press to select a range. Or press

(See 4.1 Selection of Measurement Range.)

.Press

(See 4.2 Switching of Sampling Period.)

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

(See 4.3 Zero Ajust Function.)

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

LPΩ

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

SMPL

AUTO

to select a sampling period.

to select Auto Range.

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3.2 2-Terminal Resistance Measurement

_____________________________________________________________________________________________

(

3.3 4-Terminal Resistance Measurement

DANGER

NOTE

3239

The four terminals of the L2107 CLIP TYPE LEAD Verify that all four terminals (SOURCE+, SOURCE-, SENSE+, and SENSE-) are connected. Also verify that the triangular mark

Black

L2107 CLIP TYPE LEAD

When measuring high resistance, there are cases in which an overload (“OF displayed) occurs owing to external noise. Do not use the unit near fluorescent light or power line. When external noise is high, please shield the red lead (connected to the V CLAMP terminal) and the sample to be measured. Connect the outer shield cover to the COM terminal. (Or use a shielded line, such as the 9326 CONNECTI ON CORD.) In case of using a dial resistor, connect the GUARD terminal to the COM terminal of the unit.

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.

”

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

SHIFT

."SHIFT" lights up on the display.

."4W" lights up on the display.

SMPL

to select a sampling period.

.Press

(See 4.2 Switching of Sampling Period.)

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

(See 4.3 Zero Ajust Function.)

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

When clipping a thin line Clipthe line at the tip,

______________________________________________________________________________________________

When clipping a thick line

Clipthe line at the deep,non-

3.3 4-Terminal Resistance Measurement

_____________________________________________________________________________________________

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

.Press

(See 4.2 Switching of Sampling Period.)

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

(See 4.3 Zero Ajust Function.)

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

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

SMPL

SHIFT

" lights up on the display.

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

to select a sampling period.

NOTE

. Make sure that "SHIFT" does not light on the display.

.Press .

. Connect the test lead to the sample being measured.

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

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.

______________________________________________________________________________________________

3.4 Continuity Test

_____________________________________________________________________________________________

3.5 Diode Test

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

DANGER

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 L9170-10 TEST LEAD is connected to the COM terminal and the red lead to the V Ω CLAMP terminal.

Black

Red

L9170-10 TEST LEAD

.Press

.Press .

.Press

SHIFT

."SHIFT" lights up on the display.

SMPL

to select a sampling period.

Black

Red

(See 4.2 Switching of Sampling Period.)

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

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

______________________________________________________________________________________________

3.5 Diode Test

_____________________________________________________________________________________________

3.6 Frequency Measurement (3238/39)

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

DANGER

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 L9170-10 TEST LEAD is connected to the COM terminal and the red lead to the V Ω CLAMP terminal.

Red

L9170-10 TEST LEAD

.Press

.Press to select an attenuator range.

.Press

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.

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.

______________________________________________________________________________________________

3.6 Frequency Measurement (3238/39)

_____________________________________________________________________________________________

3.7 Current Measurement (3238/39)

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

DANGER

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

L9170-10 TEST LEAD

3239

Black

Red

3.7.1 DC Current Measurement

.Press

.Press to select a range. Or press

(See 4.1 Selection of Measurement Range.)

.Press

(See 4.2 Switching of Sampling Period.)

SMPL

to select a sampling period.

Check to make sure that the black lead of the L9170-10 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.

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

.Press to select a range. Or press

(See 4.1 Selection of Measurement Range.)

.Press

(See 4.2 Switching of Sampling Period.)

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

______________________________________________________________________________________________

SMPL

to select a sampling period.

AUTO

to select Auto Range.

3.7 Current Measurement (3238/39)

_____________________________________________________________________________________________

3.8 Clamp Current Measurement

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

DANGER

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

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

3239

Black

Red

Connect the Clamp sensor connector to the 9704 CONVERSION ADAPTER.

9704

CONVERSION ADAPTER

Connect the 9704 black COM terminal to the COM terminal of the main unit and the 9704 red terminal to the V Ω

CLAMP terminal of the main unit.

Clamp sensor connector

Selection of the clamp sensor

.Press

. Pressing

.Press to display the clamp sensor setup screen.

SHIFT

."SHIFT" lights up on the display.

ENT

displays the menu screen.

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

.Press to select a clamp sensor.

. Pressing

. Another press to

NOTE

______________________________________________________________________________________________

3.8 Clamp Current Measurement

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 Dec. 1, 2008, are 90 10-50/9018-50/9132-50.

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.

_____________________________________________________________________________________________

3.8.1 DC Clamp Current Measurement

.Press

.Press to select a clamp sensor range.

.Press

(See 4.2 Switching of Sampling Period.)

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

the value.

Source side

SHIFT

."SHIFT" lights up on the display.

SMPL

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 9277/9278/9279/3284/3285 is selected.

Auto Range cannot be used.

______________________________________________________________________________________________

3.8 Clamp Current Measurement

_____________________________________________________________________________________________

3.8.2 AC Clamp Current Measurement

.Press

.Press to select a clamp sensor range.

SHIFT

."SHIFT" lights up on the display.

(Clamp sensor: 9010-50/9018-50/ 91 32-50/3283/ 32 84/3285) (See 4.1 Selection of Measurement Range.)

.Press

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

the value.

Load side

Source side

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

NOTE

Auto Range cannot be used.

______________________________________________________________________________________________

3.8 Clamp Current Measurement

_____________________________________________________________________________________________

Chapter 4

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

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

suited for the input signal level and 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. "AUTO" lights up and the unit

once again to restore Manual Range with the currently selected

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.

.Press

. Repeatedly press

settings in the order "FAST"→"MEDIUM"→"SLOW".

NOTE

______________________________________________________________________________________________

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: 3237/3 8/39 automatically self-correct offset and gain.

SMPL

every 30 minutes. Each self-calibration takes approximately 55 ms.

to cycle through the available sampling period

4.2 Switching of Sampling Period

_____________________________________________________________________________________________

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.

.Press

SHIFT

LOAD

SHIFT

" lights up on the display.

."0ADJ" lights up on the display, and the unit loads the 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

Wrong connection

Clearing the Zero-Adjust function

SENSE

SHIFT

."SHIFT" lights up on the display.

LOAD

clears the Zero-Adjust function.

NOTE

.Press

. Pressing

The Zero-Adjusted 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 -1999 99 count≦(Measurement value -

" is displayed.

Zero-Adjusted value)≦+199999 count, "

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

test function, or frequency measurement function.

______________________________________________________________________________________________

4.3 Zero Adjust function

_____________________________________________________________________________________________

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.

NOTE

.Press

screen.

.Press to select the number of averaged measurements.

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

.Press

measurement is enabled.

Clearing the Average function

.Press

. Pressing

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

SHIFT

."SHIFT" lights up on the display.

SMPL

SHIFT

to display the number of averaged measurements setup

ENT

."AVE" lights up on the display, and averaging

."SHIFT" lights up on the display.

SMPL

clears the Average function.

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

______________________________________________________________________________________________

4.4 Average function

_____________________________________________________________________________________________

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

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 i nactive 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

" lights up on the display.

."M.TRIG" is no longer lit on the display, and Internal

."M.TRIG" 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

______________________________________________________________________________________________

4.5 Trigger Function

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

_____________________________________________________________________________________________

4.5.3 Trigger Delay

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

. Pressing

.Press to display the trigger delay setup screen.

. Pressing causes the currently set trigger delay to flash.

"AUt": Auto delay "SEt": Manual delay

SHIFT

."SHIFT" lights up on the display.

ENT

displays the menu screen.

.Press to select auto delay ("AUt").

. Pressing

.Press

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

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 "dLy" to flash.

ENT

again to define your selection.

FAST MEDIUM SLOW

______________________________________________________________________________________________

4.5 Trigger Function

_____________________________________________________________________________________________

(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

. Pressing

.Press to display the trigger delay setup screen.

. Pressing causes the currently set trigger delay to flash.

AUt

SHIFT

": Auto delay

SHIFT

ENT

" lights up on the display.

displays the menu screen.

"SEt": Manual delay

.Press to select manual delay ("SEt").

. Pressing

ENT

causes the values indicating the trigger delay time to

flash.

. Set a trigger delay time by pressing .

. Pressing

.Press

ENT

causes "dLy" to flash.

ENT

again to define your selection.

______________________________________________________________________________________________

4.5 Trigger Function

_____________________________________________________________________________________________

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

). For trigger commands, refer to 7.4.3

"Specific Command Messages."

:INITIATE:CONTINUOUS

Continuous trigger state

:INITIATE:CONTINUOUS

ON OFF*

) or for the

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 :INITIATE (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

______________________________________________________________________________________________

4.5 Trigger Function

_____________________________________________________________________________________________

: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:IMMEDIATE

Trigger delay

Measurement

computed result

Measurement value

output

:INITIATE:CONTINUOUS OFF :TRIGGER:SOURCE EXTERNAL

Idle state

:INITIATE:IMMEDIATE

Wait state for trigger

TRIG terminal

M.TRIG

Trigger delay

Measurement

computed result

Measurement value

output

______________________________________________________________________________________________

4.5 Trigger Function

_____________________________________________________________________________________________

Chapter 5

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

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 t he continuity test

function or fre

uencymeasurement function.

COMP

______________________________________________________________________________________________

5.1 Comparator Function

_____________________________________________________________________________________________

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.

Press

COMP

when the comparator is off.

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

. Set the upper-limit value by pressing .

This is set to 12 V in the example.

(2) The lower-limit value is set.

Press

ENT

on the upper-limit value setup screen.

lower-limit value setup screen opens.

. Set the lower-limit value by pressing .

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.

______________________________________________________________________________________________

5.1 Comparator Function

_____________________________________________________________________________________________

NOTE

To turn the comparator OFF

If you press unit shifts to measurement with the comparator OFF.

Pressing

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

Whe n t h e co mp ar at or is ON, only t h e following k eys a r e active:

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

is set )

The conditions for m e a su rm e nt wi th th e c omp arat or O N a re t ak e n from

th e conditions of th e m e as u re m en t condu cted wi th th e comp arat or OFF.

The upper-limit a nd 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 measurement range, the absolute values indicated by the count va lues also change. sFor example, specify 038000 to set t he lower-limit val ue to 380 mV in the 2 V range of the

If th e u nit is switched off while in t he upper-limit value set up screen or

lower-limit value setup screen, the values entered during setup are canceled an d th e previously set value s re tai ne d.

If t he com para tor is tu r ne d on while Auto R ange is active, Auto Ra nge

will be cleared.

If th e compar ator is t urn ed on while t he upper-limit value of th e

compa rat or is se t to a val ue s mal ler t h a n t he lower-limit value, th e unit will indicate "

The relation b etween the thres hold a nd indication values a re a s follows:

Indication value > Upper-limit value : Hi Upper-limit value≧Indication val ue≧Lower-limit value: IN Lower-limit value > I ndication value: Lo

COMP

while the unit is measuring with the comparator ON, the

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

only when External Trigger

V function.

Err.004

", a nd th e compar ator will be t ur ne d off.

______________________________________________________________________________________________

5.1 Comparator Function

_____________________________________________________________________________________________

5.2 Comparator Buzzer Sound

Set the buzzer to sound at comparator determination.

NOTE

1 2

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

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

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

ENT

. You are returned to the measurement screen.

______________________________________________________________________________________________

5.2 Comparator Buzzer Sound

_____________________________________________________________________________________________

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.

NOTE

Press

indicating the panel number flashes.

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

Press

returned to the measurement screen.

When t he Panel Save screen opens, it indicates p anel n umb ers t ha t

have not been 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

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

______________________________________________________________________________________________

5.3 Panel Save Function

_____________________________________________________________________________________________

5.4 Panel Load Function

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

NOTE

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.

______________________________________________________________________________________________

5.4 Panel Load Function

_____________________________________________________________________________________________

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

Pressing

.Press to display the key operation sound setup screen.

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

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.

Pressing

Press

ENT

causes

ENT

again to define your selection.

bEEP

to flash.

______________________________________________________________________________________________

5.5 Key Operation Sound

_____________________________________________________________________________________________

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.

NOTE

2 3

Press

SHIFT

LOCA L

SHIFT

lights up on the display.

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

Pressing

The Key Lock function is not deactivated even if the uni t 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.

______________________________________________________________________________________________

5.6 Key Lock Function

_____________________________________________________________________________________________

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

Clearing the Remote function

Pressing

LOCA L

clears the Remote function.

NOTE

Even aft er r emot e s t at u s ha s been cleared, t he un i t will ree nt e r re mote

st atu s if externally controlled t hroug h the 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

______________________________________________________________________________________________

5.7 Remote Function

_____________________________________________________________________________________________

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

Pressing

.Press to display the system reset setup screen.

. Pressing causes "On" to flash.

Pressing

SHIFT

ENT

is pressed with

SHIFT

lights up on the display.

displays the menu screen.

runs System Reset.

rSEt

flashing, the unit will not perform a

System Reset.

______________________________________________________________________________________________

5.8 System Reset

_____________________________________________________________________________________________

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

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

does not clear interface data.

∗

RST

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

______________________________________________________________________________________________

5.8 System Reset

_____________________________________________________________________________________________

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

● ● ● ● ● －

●

－－－－－－－－－ ● － ● ● －－

Condition LOCK SMPL AVE ENT MENU SHIFT

Normal

LOCK

RMT

COMP

● ● ● ●

● －－－－ ● －－－－－－

● －－ ●

● ●

－ ●

*1: Only when External Trigger is active. *2:

:TRIGGER:SOURCE_EXTERNAL

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

______________________________________________________________________________________________

5.9 Measurement States and Effective Keys

_____________________________________________________________________________________________

Chapter 6

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

JC57-30360 (JC Electronics Corporation) Or, their equivalent.

______________________________________________________________________________________________

_____________________________________________________________________________________________

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

－－

No connection 27 No connection 28

－－

No connection

No connection 11 OUT (Reserved) 29 OUT (Reserved) 12 OUT (Reserved) 30 OUT (Reserved) 13 OUT EOC 14 OUT IN

―――

――

31 OUT Hi 32 OUT Lo

――

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

______________________________________________________________________________________________

6.1 Explanation of Signal Wires

_____________________________________________________________________________________________

―――――――――

(1) LOAD0

―――――――――

～LOAD4

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 indic ates that the LOAD number 1 indicates tha t 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

―――――――――

LOAD1

―――――――――

LOAD0

―――――――――

are all set to 1, or when LOAD0

Panel NO.

―――――――――

to LOAD4

are all setto 0, even if a trigger signal is applied, data loading 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.

______________________________________________________________________________________________

6.1 Explanation of Signal Wires

_____________________________________________________________________________________________

―――――

(4) EOC

This is a measurement end signal.

―――

(5) Hi

,IN

―――

,Lo

These are comparator determinations.

NOTE

In t h e following cases , in p u t s ig na ls will b e ineffective.

Trigger i n t h e I n te r na l Tr igger mode (TRIG Trigger in a ny screen oth er t h an mea su rem ent screens (TRIG Panel Load in remote st atus.

If no me as u re m en t is conducted af ter th e power is t u r ne d on, all t h e

outpu t signals (open collector) will go off.

If a trigger signal is applied to the un it wi th all of LOAD0

to Hi or Lo, P ane l Loa d is not executed.

If measurement is initiated after Panel Load has been executed and the

me as u re me n t conditions h ave been alte red , m ea s ur e me nt val ues will take at least 10 ms to stabilize. (Stabilization time varies with function, ra ng e , an d t h e sa m pl in g period.) To conduct m e as u re m en ts quickly, s et all of LOAD0 Lo after executing Panel 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.

―――――――

)

―――――――――

―――――――

―――――――――

- LOA D4

―――――――――

- LOA D4

to Hi or

set

(1) External trigger mode

―――――――

TRIG Measurement start signal

Measurement state

―――――――

EOC Measurement end signal

―――

,IN

―――

,Lo

Comparator result output

T2 T3

Idle state

Measurement in progress

Previous determination

Idle state

Determination

Measurement

______________________________________________________________________________________________

6.2 Timing Chart

_____________________________________________________________________________________________

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 55 ms each time.

－

(2) Internal trigger mode

―――――――

EOC Measurement end signal

―――

,IN

―――

,Lo

T6 Measurement end

signal (EOC pulse width

Comparator result output

Contents

―――

Time

MIN TYP MAX

)

FAST

MEDIUM

SLOW

－－－

1.7 ms 50 ms

500 ms

－－－

______________________________________________________________________________________________

6.2 Timing Chart

_____________________________________________________________________________________________

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

(2) Application of external output terminal

Connection of the relay

Connection of the LED

(3) Application of external control terminal

L: 0 to 1.2 V DC5±10%,

DC50 mAmax.

Connection of

negative logic output

Progammable controller

Connection of the

Connection of the relay

switch

(4) Circuit configuration of external control terminal

(5) Circuit configuration of

Connection of the progammable controller

external output terminal

______________________________________________________________________________________________

6.3 Internal Circuit Configuration

_____________________________________________________________________________________________

Chapter 7

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

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

CR + LF for transmission

______________________________________________________________________________________________

_____________________________________________________________________________________________

(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

grounding

______________________________________________________________________________________________

_____________________________________________________________________________________________

7.1 Preparing for Data Transfer

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) Connecting 3237/38/39 and Personal Computer

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

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

. Set RS-232C in personal computer.

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

______________________________________________________________________________________________

7.1 Preparing for Data Transfer

_____________________________________________________________________________________________

(3) 3237/38/39 Interface Setting

Designate 3237/38/39 Interface setting "

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

Interface to communicate with personal computer.

Press

Pressing

Press to display the interface setup screen.

Pressing causes the interface currently set to flash.

"rS" : RS-232C " "

Press to select

Pressing

SHIFT

" : Printer

Prn

" : GP-IB

gPIb

ENT

SHIFT

lights up on the display.

displays the menu screen.

RS-232C ("rS")

causes

"IF"

to flash.

NOTE

Press

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

ENT

again to define your selection.

______________________________________________________________________________________________

7.1 Preparing for Data Transfer

_____________________________________________________________________________________________

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. During communication, 3237/38/39 front panel "RMT"isturnedoninremote status.

LOCA L

Command Format

Remote status disables all operations except Press local status.

LOCA L

to disengage remote status (communication) and returns to

(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 co mmand 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 co mmand contains no parameter

:INIT (+delimiter)

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

Delimiter

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.

7.2 Communication

_____________________________________________________________________________________________

(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 co mmand. 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.

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.

______________________________________________________________________________________________

7.2 Communication

_____________________________________________________________________________________________

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

Compound Command Header Omission

When several commands having a common header are combined to form a compound command (e.g., :CALCulate:LIMit:UPPer and :CALCulate:LIMit:LOWer), if they are written together in sequence, the common portion (here, :CALCulate:LIMit:) can be omitted after its initial occurrence. This common portion is called the“current path”(analogous to the path concept in computer file storage), and until it is cleared, the interpretation of subsequent commands presumes that they share the same common portion.

This usage of the current path is shown in the following example:

Full expression

:CALC:LIM:UPP 150000;:CALC:LIMit:LOW 120000

Compacted expression

:CALC:LIMit:UPP 150000;LOW 120000

This portion becomes the current path, and can be omitted from the message immediately following.

The current path is cleared when the power is turned on, when reset by key input, by a colon“:”at the start of a command, and when a message terminator is detected. Standard command messages can be executed regardless of the current path. They have no effect upon the current path.

Acolon“:”is not required at the start of the header of a Simple or

Compound command. However, to avoid confusion with abbreviated forms and operating mistakes, we recommend always placing a colon at the start of aheader.

______________________________________________________________________________________________

7.2 Communication

_____________________________________________________________________________________________

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.

______________________________________________________________________________________________

7.2 Communication

_____________________________________________________________________________________________

)

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

Not used Not used Not used

Status byte registers(STB

ESB0

Logical

sum

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

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

Bit 1 Bit 0

ESB0

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.

______________________________________________________________________________________________

7.2 Communication

)

_____________________________________________________________________________________________

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.

______________________________________________________________________________________________

7.2 Communication

_____________________________________________________________________________________________

(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 3 237/38/39 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

______________________________________________________________________________________________

7.2 Communication

)

_____________________________________________________________________________________________

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

ESB0

bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0

Not used Not used

-OF +OF HI IN LO EOC

Not used

＆

bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0

Not used Not used

＆

-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.

＆＆

______________________________________________________________________________________________

7.2 Communication

_____________________________________________________________________________________________

(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

Bit 2

Bit 1

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

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

______________________________________________________________________________________________

7.2 Communication

_____________________________________________________________________________________________

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)

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)

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.

______________________________________________________________________________________________

7.3 Command Code Table

_____________________________________________________________________________________________

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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7.3 Command Code Table

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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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7.3 Command Code Table

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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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7.3 Command Code Table

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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:STATe 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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7.3 Command Code Table

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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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7.3 Command Code Table

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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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7.3 Command Code Table

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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 tran smissions 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 Command Reference

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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 r egisters 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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7.4 Command Reference

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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 standard 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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7.4 Command Reference

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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 t hat 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 initialize s 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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7.4 Command Reference

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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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7.4 Command Reference

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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 asso ciated error has 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 Command Reference

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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 ESER0 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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7.4 Command Reference

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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 quot ation 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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7.4 Command Reference

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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 measurement 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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7.4 Command Reference

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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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7.4 Command Reference

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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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7.4 Command Reference

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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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7.4 Command Reference

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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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7.4 Command Reference

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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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7.4 Command Reference

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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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7.4 Command Reference

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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 19999 9 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 setting 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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7.4 Command Reference

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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 19999 9 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 19999 9

Function

Example

Sets the lower-limit value to be used for comparator determination 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 19999 9 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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7.4 Command Reference

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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 not.

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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7.4 Command Reference

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System-related Commands

Setup for key operation sound

Syntax

data

Function

Example

:SYSTem:BEEPer:STATe data

ON/1: Key operation sound enabled OFF/0: Key operation sound 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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7.4 Command Reference

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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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7.4 Command Reference

Hioki 3237, 3237-01, 3238, 3238-01, 3239 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Introduction

Inspection

Safety Notes

Notes on Use

Chapter Summary