Hioki 3167 Instruction Manual

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Page 1

INSTRUCTION MANUAL

3167

AC/DC CLAMP ON

POWER HiTESTER

Page 2

Page 3

Contents

Introduction i For Safety Before Use Important Notes on Using the Power Meter Chapter Summary

iii

vii

Chapter 1 Overview and Identification of Controls

and Indicators

1.1 Overview of the 3167 1

1.2 Features 2

1.3 Identification of Controls and Indicators 3

1.4 Explanation for keys 4

1.5 Handle Operation 5

Chapter 2 Specifications 7

2.1 General Specifications 7

2.2 Measurement Accuracy 14

2.3 Measuring Item and Compulating Equation 15

2.4 Internal Configuration 16

Chapter 3 Before measurement 19

3.1 Basic Use 19

3.2 Fitting Clamp-on Sensor and Voltage Cord 20

3.2.1 Compatible Sensor and Voltage Cord 20

3.2.2 Fitting Method of Clamp-on Sensor and Voltage Cord

3.3 When the Power is Turned On 22

3.3.1 When using the AC adapter 22

3.3.2 When a DC Power Supply Is Used

3.4 Self Test 24

3.5 How to make the connections 26

3.5.1 Before connection to circuit 26

3.5.2 Notes When making the Connections

3.5.3 How to make connections

27 29

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Chapter 4 Basic Operation 31

4.1 Selecting the Rectifier Type 31

4.2 Selecting the Display 33

4.3 Selecting the Range 35

4.4 Holding the Display 38

4.5 Demagnetizing

Chapter 5 Applied Operation 41

5.1 Items Set by Setup Keys 41

5.2 Operating Setup Keys 42

5.3 Frequency Measurement 43

5.4 Integration 44

5.4.1 Settings 44

5.4.2 Integrating

5.4.3 Display Format of Integrating Value.

5.5 PT Settings 49

5.6 CT Settings 50

5.7 PT and CT Setting Samples 51

5.8 Selecting the Number of Averaging 54

5.9 Selecting D/A output

5.10 Setting Interface

44 47

55 58

5.10.1 Setting the GP-IB Address 58

5.10.2 Setting the RS-232C Interface

5.11 Selecting the Printing Items 60

5.12 Setting the Print Interval Time 61

5.13 External Control Terminal and Output Terminal 62

5.13.1 Output Terminal 62

5.13.2 External Control Terminal

5.13.3 Making the Connections

63 65

5.14 Other Functions 66

5.14.1 When the power is cut off 66

5.14.2 System Resetting

5.14.3 Error indications

66 68

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Chapter 6 Interface, GP-IB, RS-232C 71

6.1 Specifications 71

6.1.1 GP-IB 71

6.1.2 RS-232C

6.2 Installing and Removing the Interface Option 75

6.3 Identification of Controls and Indicators 76

6.4 Setting Interface 77

6.5 Introduction to the Interface 78

6.5.1 Features 78

6.5.2 Messages

6.5.3 Command Syntax

6.5.4 Headers

6.5.5 Message Terminators

6.5.6 Separators

6.5.7 Data Formats

6.5.8 Abbreviation of Compound Commands

6.5.9 Output Queue

6.5.10 Input Buffer

6.5.11 Status Model

78 79 80 81 81 82 83 84 84 85

6.5.12 Status Byte Register

6.5.13 Event Registers

6.5.14 GP-IB Commands

86 87 92

6.6 Command Reference 93

6.6.1 Standard Commands 94

6.6.2 Commands specific to the 3167

104

6.7 Sample Programs 148

6.7.1 GP-IB 148

6.7.2 RS-232C

149

6.8 Printer Output Function 151

6.8.1 Talk Only Function 151

6.8.2 Printer Mode Function

6.8.3 Type of Printing

6.8.4 Selecting Printing Items and Setting Printing Interval Time

6.8.5 Printer Output Buffer

151 151

151 152

6.8.6 Printing in Power Cut

6.8.7 Sensor Error Printing

6.8.8 Printing Example

152 152 153

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6.9 Device Compliance Statement 159

6.10 Notes on Interfaces 162

6.10.1 Notes on GP-IB Interface 162

6.10.2 Notes on RS-232C

163

Chapter 7 Maintenance and Service 165

7.1 Changing the Power Fuse 165

7.2 Disposing of the Unit 167

Chapter 8 Appendices 169

8.1 Range correspondence table 169

8.2 Error messages 171

8.3 Command Summary 172

8.3.1 Standard Commands 172

8.3.2 Commands Specific to the 3167

8.3.3 Valid Command According to Condition (Standard Command)

8.3.4 Valid Command According to Condition (Commands Specific to the 3167)

173

176

177

8.3.5 Execution Time of Command

8.3.6 Initialization

8.3.7 3167 Specific Command Tree

180 181 182

Index INDEX 1

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ntroduction

Thank you for purchasing the HIOKI "3167 AC/DC CLAMP ON POWER HiTESTER". To obtain maximum performance from the product, please read this manual first, and keep it handy for future reference.

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Introduction

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or Safety

DANGE

Mishandling this product during use could result in injury or death, as well as damage to the product. 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 product 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.

Safety symbols

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 the ON side of the power switch.

DANGE

WARNIN

CAUTIO

Indicates the OFF side of the power switch.

Indicates a grounding terminal.

Indicates DC (Direct Current).

Indicates both DC (Direct Current) and AC (Alternating Current).

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

Indicates that incorrect operation presents an extreme hazard that 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.

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

NOTE

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For Safety

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

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efore Use

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.

Standard accessories

Accessory Model number or rating Number provided

Instruction manual 1 Power cord 1 Voltage cord 9179 VOLTAGE CORD 1 AC adapter 9418-10 AC ADAPTER

(PSA-30U-120, PHIHONG)

Spare fuse (for voltage cord) M 0.3 A/250 V arc quenching 1

Shipment

Use the original packing materials when reshipping the product, if possible. If this is not available, employ the following procedure.

(1) Procure a packing case somewhat larger than the unit, such as a cardboard

box. (2) Wrap the unit in plastic sheeting. (3) Pack the unit wrapped in this cushioning material into the box, pack in the

accessories, add more cushioning to fill the box tightly, and then seal it

with adhesive tape. If required, secure the case with shipping twine.

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Before Use

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mportant Notes on Using the Power Meter

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

Preliminary check

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

Before use

DANGE

WARNIN

DANGE

The maximum input voltage (maximum sustainable input) is 600V DC/AC. Attempting to measure voltage in excess of the maximum input could destroy the product and result in personal injury or death.

When the unit is using a DC power supply, the voltage is 12 V±2V. When

using the supplied AC adapter, the voltage is 100 to 240 V AC (50/60 Hz). Using other voltage supplies may cause damage to the unit or an accident. To avoid electric shock and ensure safe operation, connect the power cord to a grounded (3-contact) outlet.

Making power meter connections

Connect the clamp-on sensors or voltage cords to the product first, and then to the active lines to be measured. Observe the following to avoid electric shock and short circuits.

Clamp sensor and Voltage cord should only be connected to the

secondary side of a breaker, so the breaker can prevent an accident if a short circuit occurs. Connections should never be made to the primary side of a breaker, because unrestricted current flow could cause a serious accident if a short circuit occurs.

Do not allow the voltage cord clips to touch two wires at the same time.

Never touch the edge of the metal clips.

When the clamp sensor is opened, do not allow the metal part of the

clamp to touch any exposed metal, or to short between two lines, and do not use over bare conductors.

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

attach the clamp sensor to a circuit that operates at more than AC 600Vrms, or over bare conductors.

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Important Notes on Using the Power Meter

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WARNIN

CAUTIO

To avoid electric shock accident, before removing or replacing an interface, power cord, and clamp sensor, confirm that the instrument is turned off and that the power cord are disconnected. The mounting screws must be firmly tightened or the input unit may not perform to specifications, or may even fail. Before using the product, make sure that the insulation on the sensor and power cord is undamaged and that no bare conductors are improperly exposed. Using the product under such conditions could result in electrocution. Replace the sensor and voltage cord (9179) specified by Hioki.

・Avoid stepping on or pinching the cable, which could damage the cable

insulation.

・Keep the cables well away from heat sources, as bare conductors could be

exposed if the insulation melts.

Others

CAUTIO

NOTE

・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.

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

do not input voltage to the output terminal.

・To avoid damage to the product, protect it from vibration or shock during

transport and handling, and be especially careful to avoid dropping.

・Note that the product may be damaged if the applied voltage or current

exceeds the measurement range.

・Accurate measurement may be impossible in the presence of strong

magnetic fields, such as near transformers and high-current conductors, or in the presence of strong electromagnetic fields such as near radio transmitters.

・The values for apparent power (VA), reactive power (var), power factor (PF)

and phase angle (deg) produced by this unit are computed from the measured voltage (V), current (A), and active power (W), using the expressions given in the specifications. The values given may be different from those measured with an instrument of different operating principles or using different calculation expressions.

・Integration values produced by the 3167 are computed in software from the

measured current and power values. Similar integration values produced by an instrument with a different response speed, sampling rate or method of calculation may differ from those of the 3167.

・For accurate measurement, allow the unit to warm up for more than half an

hour before starting operation.

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Important Notes on Using the Power Meter

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・When the input is less than 0.4% of the measurement range, the indication

is forcibly set to zero.

・The 3167 has a frequency measurement function, but this may produce

unexpected results on a waveform which is severely distorted.

・When an in-phase voltage of high frequency is applied (as for example when

measuring the secondary side of an inverter), errors may occur in the measured values.

・When the rectification method is set to AC + DC, it is not possible to

distinguish the polarity of the DC component of voltage or current.

・To ensure the accuracy of measurement be careful not to let the unit

overheat.(Keep away from sources of heat, and provide sufficient ventilation space around the unit, or when rack-mounted provide a cooling fan.)

・If an external voltage or current transformer is used, there is a possibility

that its phase difference may cause great errors in power measurement. For accurate power measurement, use a transformer which has a phase error as small as possible, with regard to the frequency band of the circuit to be used.

・If the voltage or the current of the circuit which is to be measured will

exceed its range as set on the 3167 unit, use an external voltage or current transformer so as to ensure that the maximum sustainable value is not exceeded. When this is done, it its possible to read out the measured values directly by using the PT and CT scaling functions.

・When extension wiring is in use, keep such wiring as far as possible away

from the 3167 unit in order to minimize the disturbing effects upon measurement of the external magnetic field which it generates.

・Ensure that a ny instrument (recorder, digital multimeter,

oscilloscope,etc.) c onnected to the output terminal either ha s an insulated input or is battery powered. Use of an instrument with uninsulated input will result in a l oop between ground, the 3167, the instrument, a nd ground, affecting the 3167’s analog ground level (the reference potential) and rendering measurements and waveform observations inaccurate.

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Important Notes on Using the Power Meter

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hapter Summary

The various chapters of this manual deal with the following subjects. Follow the introduction to Chapter 1, which describes precautions on use, overview, and features of this unit.

Chapter 1 Overviews and identification of indicators

Overview of the unit and its features and identification of indicators.

Chapter 2 Specifications

Specifications for the main unit, and measurement ranges.

Chapter 3 Before measurement

Describes setup and preparation for using the unit and important points to note.

Chapter 4 Basic operation

Illustrates handling and basic unit operation with illustration and example for each function or mode.

Chapter 5 Applied operation

Illustrates handling and applied unit operation with illustration and example for each function or mode.

Chapter 6 Interface GP-IB, RS-232C

Describes summary of optional interfaces (GP-IB and RS-232C) and commands.

Chapter 7 Maintenance and service

Covers maintenance and notes on ultimate disposal.

Chapter 8 Appendices

Collects range correspondence table, list of error massages and command summary as appendices.

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Chapter Summary

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Chapter Summary

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Chapter

Overview and Identificatio

of Controls and Indicator

.1 Overview of the 3167

The 3167 AC/DC CLAMP ON POWER HiTESTER is a single phase power tester suitable for measuring the electrical power consumption of low power equipment such as domestic electrical products. With this one unit, it is possible to measure voltage, current, active power, apparent power, reactive power, the power factor, phase angle, frequency and integrated value.

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1.1 Overview of the 3167

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.2 Features

(1) Wide broad band DC, from 10 Hz to 50 kHz. (2) In reactive power and the power factor indication, it is possible to recognize

the phase is lead or lag.

(3) The voltage range and current range are wide. (from 15 V to 600 V, from 2 A

to 500 A)

(4) Simultaneous three-channel analog output for voltage, current, and active

power is provided.

(5) Simultaneous three-channel monitor output (wave form output) for voltage,

current and active power is provided.

(6) It is possible to get the plus, minus, total current or power integrations

simultaneously.

(7) When you set the rectification method to DC, you can recognize the polarity of

direct voltage and direct current.

(8) The terminal for voltage measurements are insulated. Current measurement

is insulated in the clamp-on sensor.

(9) All measurement data has synchronism.

(10) GP-IB interface (option) is equipped. When connect GP-IB listen only printer,

manual printing of measurement data, time interval printing which synchronize with integration measurement and help printing of setting items are possible.

(11) RS-232C interface (option) is equipped. When connect RS-232C printer,

manual printing of measurement data, time interval printing which synchronize with integration measurement and help printing of setting items are possible.

(12) It is possible to change one of the apparent power, reactive power, power

factor, phase angle, frequency and integration value to direct voltage from D/A output terminal in 2 V f.s..

(13) Small-sized and light weight.

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1.2 Features

Page 17

Rectifier type display Voltage range display Current range display

Display a Display b Display c

Other function d isplay

Handle

POWER switch

Front panel

Clamp sensor connector

Voltage cord connector Connector for AC adapter

Analog output and external control terminal Option bay

Rear panel

Integrating condition display

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.3 Identification of Controls and Indicators

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1.3 Identification of Controls and Indicators

Page 18

DEMAG

SET UP

ITEM

HOLD

ENTER

SHIFT

RECTIFIER

START/STOP

RESET

DATA OUT

HELP

LOCAL

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.4 Explanation for keys

Key

Notation on the

instruction manua

▲

Summary

ectio

Switches over the display a. 4.2 In combination with the SHIFT key, this

demagnetizes the sensor.

4.5

Switches over the display b. 4.2 In combination with the SHIFT key, this switches

between the setting display and the measurement

display. Switches over the display c. 4.2 Changes items of setting display. 5 Switches over the voltage range. 4.3 Moves the cursor to the left in the setting display.

Switches over the voltage range. 4.3 Moves the cursor to the right in the setting display.

Switches over th e current range. 4.3 Changes setting value of setting display. 5 Switches over the current range. 4.3

▼

Changes setting value of setting display. 5 Holds display value. 4.4 Confirms setting value of setting display. 5 Validates the lower indicated function for that key

(Shift lamp lights). In combination with the SHIFT key, changes rectifie

type. In combination with the SHIFT key, executes

integration start or stop. In combination with the SHIFT key, resets

integration value.

4-6

4.1

5.4

Outputs the measuring value to the printer. 6.8 In combination with the SHIFT key, outputs the

measuring value to the printer.

6.8

Releases the remote state under interface. 6.3

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1.4 Explanation for keys

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.5 Handle Operation

CAUTIO

When using the handle as a stand for the 3167, pressing down on the unit will damage the handle.

Adjust the handle angle as follows.

1. Grip the ends of the handle with both hands and pull them away from the

handle retaning notches.

Pull firmly outward

2. Maintaining outward pressure on the end of the handles, turn the handles

to the desired angle.

NOTE

CAUTIO

3. Reset the handle ends to the retaining notches.

The handle angle is adjustable in increments of approximately 22 degrees.

When using the handle as a stand for the device, do not press down too hard on the device as this can damage the handle.

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1.5 Handle Operation

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1.5 Handle Operation

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2 s

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Chapter

Specification

.1 General Specifications

■ Measuring line Single phase, two conductor (1φ2W)

■ Measuring items Voltage, current, active power, apparent power,

reactive power, power factor, phase angle, frequency, current integration and power integration

■ Display type LED display display・a Voltage, current, active power

(4 digits display)

display・b Voltage, current, active power,

integrate passage time (4 digits display) display・c Voltage, current, active power,

apparent power, reactive power,

power factor, phase angle, frequency,

integrate value (Integrate value is displayed in 6

digits, the other is 4 digits.) Unit m, k, M, V, A, W, VA, var, Hz, Ah,

Wh (PF, deg and TIME show

displaying items)

■ Sample rate 5 times/sec.

■ Temperature and humidity 0 ℃ to 40 ℃, 80 % RH with no condensation

ranges for operation

■ Temperature and humidity -10 ℃ to 50 ℃, 80 % RH with no condensation

ranges for storage

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2.1 General Specifications

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Voltage, current, active power measurement

■ Measuring range Voltage 15.00/30.00/60.00/150.0/300.0/600.0 V Current 2.000/5.000/10.00/20.00 A (Uses clamp sensor rated at 20 A)

20.00/50.00/100.0/200.0 A (Uses clamp sensor rated at 200 A)

50.00/100.0/200.0/500.0 A (Uses clamp sensor rated at 500 A) Active power according to combination of

voltage and current

Includes auto and manual ranging

■ Maximum sustainable Voltage 600 V active value, 848 V peak input Current according to specifications for clamp-on

sensor

However, maximum sustainable input of clamp-on

sensor connector portion is 5.6 V, effective value is 8 V peak.

■ Maximum crest factor Less than 3

■ Input resistance (DC) Voltage 1 MΩ±5%

Current according to specifications for clamp-on

sensor

Only input resistance of main unit is 200 kΩ±10 %

■ Influence on power Less than ±0.3 % rdg. (In 45 Hz to 66 Hz, PF=0.5) factor

■ Input type Voltage resistive potential divided or isolated

amplifier

Current Clamp sensor

UNIVERSAL CLAMP ON CT (AC/DC) 9277, 9278, 9279 CLAMP ON SENSOR (AC) 9270, 9271, 9272

■ Measurement type Voltage real effective value measurement by

analog treatment, average rectifier effective value conversion measurement and DC measurement

Current real effective value measurement by

analog treatment and DC measurement

Active power real effective value measurement

by analog treatment

■ Effective input limit 10 to 100 % for range (only 600 V range)

10 to 110 % for range (V or A range except above)

■ Display limit 0.4 to 130 % for range (resolution 4 digit)

■ Temperature coefficient Less than ± 0.05 % f.s./℃

■ External magnetic field According to specifications for clamp-on sensor

influence

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2.1 General Specifications

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■ In-phase voltage influence Less than ± 0.2 %f.s.

(Voltage input terminal short, provides 600 V AC

rms and 50/60 Hz between voltage input terminal or clamp-on sensor and ground.)

■ Maximum in-phase voltage 600 Vrms (DC, 50 /60 Hz) for voltage output

terminal

■ Analog output Output voltage ±2 V DC f.s. outputs voltage,

current and active power

simultaneously Output accuracy measurement accuracy ± 0.1 %f.s. Response time less than 1.1 sec. (suddenly change

to 0 % to 90 % and 100 % to 10 %

for range) Output resistance 100 Ω±5%

■ Monitor output Output voltage 2 Vf.s. outputs voltage, current

and active power simultaneously

(wave form output) Output accuracy voltage, current: measurement accuracy ±0.5 %f.s.

(effective value level) active power:

measurement accuracy ±2.0 %rdg.

±0.5 %f.s. (averaging value level) Output resistance 100 Ω±5%

Apparent power, reactive power and power factor measurement

■ Measurement type Apparent power computed from voltage and current

(for computing equation refer to

table 2.3) Reactive power computed from active power and

apparent power (for computing

equation refer to table 2.3) Power factor computed from active power and

apparent power (for computing

equation refer to table 2.3)

■ Measurement range Both apparent power and reactive power are same

as active power (however, units are VA and var respectively)

Power factor (measurement limit): 0.000 to ±

1.000 (with polarity of lead or lag)

■ Effective input limit Same as the effective input limits of voltage,

current and active power

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2.1 General Specifications

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Phase angle measurement

■ Measurement type Computed from power factor

■ Measurement limit + (lag) 90.00 deg. to - (lead) 90.00deg.

■ Effective input limit Same as the effective input limits of voltage,

current and active power

Frequency measurement

■ Measurement type Reverse operation from input wave form cycle (reciprocal method)

■ Measurement range 500 Hz/50 kHz (Includes auto and manual ranging)

■ Measurement limit 0.8 % to 100 % for range (4 Hz to 500 Hz/400 Hz to

50 kHz)

■ Effective input limit Same as the input limits of voltage and current

■ Accuracy ±0.1 %rdg. ±1 dgt. (0 ℃ to 40 ℃, In sinewave

input)

■ Measurement cycle 2 times/sec. to 5 times/sec. (By measurement frequency, renewal cycle on display is 5 times/sec)

■ Functions Source changing (voltage and current)

Filter changing linked with range (cut off

frequency is 100 % for range)

Current integration and power integration

■ Measurement type Computed from measurement value of current and active power

■ Measurement limit 0to± 999999 MAh/MWh (Integrate time exists within 10000 hours)

■ Effective input limit Same as the input limits of current and active power

■ Accuracy Measurement accuracy for current and active power is ± 1 dgt.

■ Accuracy of integration ±100 ppm ±1 sec. (in 0 ℃ to 40 ℃)

time

■ Timer setting limit 1 minute to 10000 hours (sets the unit to 1 minute)

■ Functions Integration according to polarity (display the integration value of plus, minus and total)

Integration start, stop and reset (key operating

and external control are possible)

Stops integration with timer Display of integrate elapsed time (0 minute to

10000 hours)

Add and integration by repeat of start and stop Back up of integrate value and integrate elapsed

time in power cut

Integration restarting when the power cut is over

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2.1 General Specifications

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Functions

■ Rectifier type changing DC DC measurement AC+DCRMS AC + DC measurement (For both

voltage and current, display true RMS value)

AC RMS AC (For both voltage and current,

display true RMS value)

AC+VMEAN AC (voltage is displayed as average

rectifier effective value, current is displayed as true RMS value)

■ Scaling Direct reading by setting of PT and CT ratio Setting limit PT 1.000 to 9999 CT 0.01 to 9999

■ Average Display by moving and averaging the sampling data

Number of averaging OFF, 8, 16, 32 and 64

■ Over input warning When the input wave form peak value is 3 times for range, warning lamp lights

■ Battery backup Backup each settings and integrate data

When the power is cut off during integration, it is

restarted after power cut is over

■ Hold Stops renewaling displays of all measurement values

D/A output

■ Constitution 16 bits D/A converter, 1ch (polarity +15 bits)

■ Accuracy Measurement accuracy ±0.2 %f.s. (23 ℃±3 ℃)

■ Temperature coefficient Less than ±0.05 %f.s./℃

■ Sample rate 5 times/sec.

■ Output voltage DC ±2 Vf.s.

■ Output contents Apparent power, reactive power, power factor,

phase angle, frequency, current integration and power integration

■ Output resistance 100 Ω±5%

Other

■ Dielectric strength 2.2 kVAC, 50/60 Hz, 1 minute

Between voltage input terminal and case, output

terminal, external control terminal, power supply

When using 9418-10

PHIHONG): 1.5 kVAC, 50/60 Hz, 1 minute

AC ADAPTER (PSA-30U-120,

Between primary power supply and case, output

terminal, external control terminal

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2.1 General Specifications

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■ Insulation resistance In 500 V DC more than 100 MΩ

Between voltage input terminal and case, output

terminal, external control terminal, power supply

When using 9418-10

PHIHONG): In 500 VDC more than 20 M Ω

AC ADAPTER (PSA-30U-120,

Between primary power supply and case, output

terminal, external control terminal

■ Power supply 12 V DC±2V When using AC adapter: 100 AC to 240 V 50/60 Hz

■ Power consumption 20 VA Max. (when the optional interface is fitted) At rated input level: 13 VA Max. (when the

optional interface is fitted)

■ Mass Approx. 2.4 kg (only main unit, but includes an option)

■ External dimensions Approx. 215 (W) × 80 (H) × 280 (D) mm (without projections such as buttons and supporting leg)

■ Accessories Instruction manual 1

9418-10

AC ADAPTER (PSA-30U-120, PHIHONG) 1

Power cord 1 9179

VOLTAGE CORD 1

Options

■ 9588 GP-IB INTERFACE Based on IEEE-488.1 1987 and refer to IEEE-488.2 1987

SH1, AH1, T5, L4, SR1, RL1, PP0, DC1, DT1, C0 Manual output using talk only mode, time interval

output and help output function is contained

(External control is possible for manual output) (It is possible to set the interval with unit in 10

seconds from 10 seconds to 100 hours. Synchronized with integration starting)

■ 9592 RS-232C INTERFACE Start-stop transmission

Baud rate 1200, 2400, 4800, 9600 bps

Data length 7 or 8 bits Parity NONE, ODD or EVEN Stop bits 1 or 2 bits Manual output using printer mode, time interval

output and help output functions are contained. (External control is possible for manual output)

(It is possible to set the interval with unit in 10

seconds from 10 seconds to 100 hours. Synchronized with integration starting)

■ 9270 (20A), 9271 (200A), 9272 (20A/200A) CLAMP ON SENSOR (for AC)

■ 9277 (20A), 9278 (200A), 9279 (500A) UNIVERSAL CLAMP ON CT (for AC/DC)

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2.1 General Specifications

Page 27

Table 2.1-1 When using Clamp sensor rated at 20 A

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■ 9290 CLAMP ON ADAPTER (for 1500 A AC)

■ 9442 PRINTER (using with 9592 RS-232C INTERFACE)

■ 9443-03 AC ADAPTER for printer (for U.S.A)

9443-02 AC ADAPTER for printer (for EU excluding Switzerland) 9443-01 AC ADAPTER for printer (for JAPAN)

■ 9446 CONNECTION CABLE (for printer)

■ 1196 RECORDING PAPER

■ 9151-02 GP-IB CONNECTOR CABLE (2 m)

9151-04 GP-IB CONNECTOR CABLE (4 m) (using with the 9588 GP-IB INTERFACE)

Table 2.1 Range correspondence table

15.00 V

2.000 A 5.000 A 10.00 A 20.00 A

30.00 W 75.00 W 150.0 W 300.0 W

30.00 V

60.00 V

150.0 V

300.0 V

600.0 V

60.00 W 150.0 W 300.0 W 600.0 W

120.0 W 300.0 W 600.0 W 1.200 kW

300.0 W 750.0 W 1.500 kW 3.000 kW

600.0 W 1.500 kW 3.000 kW 6.000 kW

1.200 kW 3.000 kW 6.000 kW 12.00 k W

Table 2.1-2 When using Clamp sensor rated at 200 A

15.00 V

30.00 V

60.00 V

150.0 V

300.0 V

600.0 V

20.00 A 50.00 A 100.0 A 200.0 A

300.0 W 750.0 W 1.500 kW 3.000 kW

600.0 W 1.500 kW 3.000 kW 6.000 kW

1.200 kW 3.000 kW 6.000 kW 12.00 k W

3.000 kW 7.500 kW 15 .00 kW 30.00 kW

6.000 kW 15.00 W 30 .00 kW 60.00 kW

12.00 kW 30.00 kW 60.00 kW 120.0 kW

Table 2.1-3 When using Clamp sensor rated at 500 A

15.00 V

30.00 V

60.00 V

150.0 V

300.0 V

600.0 V

NOTE

In apparent power and reactive power, the unit W in above table must be

50.00 A 100.0 A 200.0 A 500.0 A

750.0 W 1.500 kW 3.000 kW 7.500 kW

1.500 kW 3.000 kW 6.000 kW 15.00 k W

3.000 kW 6.000 kW 12 .00 kW 30.00 kW

7.500 kW 15.00 kW 30.00 kW 75.0 0 k W

15.00 kW 30.00 kW 60.00 kW 150.0 kW

30.00 kW 60.00 kW 120.0 kW 300.0 kW

considered as VA or var.

────────────────────────────────────────────────────

2.1 General Specifications

Page 28

. . .

────────────────────────────────────────────────────

.2 Measurement Accuracy

Measurement accuracy

Period of guaranteed accuracy: 6 months (23 ℃±3 ℃, PF=1, warm-up time=30 min.)

Frequency Voltage Current Effective power

DC 10 Hz to 20 Hz 20 Hz to 45 Hz 45 Hz to 66 Hz 66 Hz to 4k Hz 4 kHz to 10 kHz 10 kHz to 50 kHz

±0.4 %rdg. ±0.3 %f.s ±1.5 %f.s. ±0.4 %rdg. ±0.4 %f.s ±0.4 %rdg. ±0.1 %f.s ±0.4 %rdg. ±0.4 %f.s ±1.4 %f.s. ±3.0 %f.s.

±0.5 %f.s. ±1.0 %f.s. ±0.3 %f.s. ±0.3 %f.s. ±0.3 %f.s. ±1.0 %f.s. ±1.0 %f.s.

±0.4 %rdg. ±0.3 %f.s ±1.5 %f.s. ±0.4 %rdg. ±0.4 %f.s ±0.4 %rdg. ±0.1 %f.s ±0.4 %rdg. ±0.4 %f.s ±1.4 %f.s. ±3.0 %f.s.

────────────────────────────────────────────────────

2.2 Measurement Accuracy

Page 29

)

────────────────────────────────────────────────────

.3 Measuring Item and Compulating Equation

Table 2.3 Compulating equation

Apparent power (VA

NOTE

・V means voltage measurement value, A means current measurement value

and W means active power measurement value. (In this case, rounding error for display ±1 dgt. is not included.)

・s means the polarity which become -1 when the current phase against

voltage is lead and +1 when it is lag.

・Compulating accuracy is ±1 dgt. for the calculate value from measurement

value on display.

Reactive power (var) Power factor (PF) Phase angle (deg)

────────────────────────────────────────────────────

2.3 Measuring Item and Compulating Equation

Page 30

────────────────────────────────────────────────────

.4 Internal Configuration

・Figures 2.4-1 and 2.4-2 show the internal configuration of the 3167. ・The measurement voltage is insulated in the input unit. The measurement

current is insulated in the clamp-on sensor. The input signals are amplified to the required signal level, and output as monitor signals. At the same time, they are input to the power calculation circuit and effective value conversion circuit. In DC mode, however, without passing through the effective value conversion circuit, the signals pass through a mean value rectification circuit. The analog outputs are output with a full scale value of ±2 V DC. In the AC mode, the DC component is eliminated.

・In the effective value conversion circuit, using a dedicated analog calculation

IC, conversion to an effective value by the effective value computation (true RMS) or mean value rectified effective value computation (voltage only) is carried out. The outputs converted to effective values are smoothed, and output as 2 V DC full-scale analog signals to the digital circuits and output terminals.

・In the power calculation circuit, a multiplier multiplies the voltage and

current, and the result is output as a 2 V DC full-scale analog signal to the digital circuits and output terminals. The multiplied waveform is also amplified and output as a monitor signal.

・For frequency measurement the voltage and current waveforms are shaped

by a filter, and output to the digital circuits.

・The peak detection circuit checks whether the voltage and current values

exceed the circuit operation levels, and if so outputs an "out-of-range" signal to the digital circuits.

・The digital circuits perform A/D conversion of the analog output signals for

voltage, current, and active power, then transfer the A/D converted values to the CPU, where these values are used for computational derivation of the apparent power, reactive power, power factor, phase angle, and integrated value. The signal for frequency goes to a frequency counter where its frequency is measured and calculated in the CPU. Signals input from the I/O port are used for the calculation expression and lighting the LEDs. The I/O port is also used for output of the signals (range signals and so forth) controlling the analog circuits.

・The digital circuits also carry out external control, D/A conversion output,

and interface processing.

────────────────────────────────────────────────────

2.4 Internal Configuration

Page 31

r n n

circuit

To CPU

Voltage range signal (from CPU)

Current range signal (from CPU)

AC+DC,ACrms

ACmean

Frequency range signal (from CPU)

AC+DC,ACrms

Frequency range signal (from CPU)

(from CPU)

V signal

terminal)

Monitor V output ( terminal)

Excess V signal (to CPU)

signal

A signal

A analog output ( terminal)

Monitor A output ( terminal)

Excess A signal (to CPU)

A frequency signal

Phase signal

W signal

W analog output ( output terminal)

Monitor W output ( terminal)

S d

(One signal is also used as an auxiliary signal.)

n n

────────────────────────────────────────────────────

ectifier type

election sign

ens

igna

Attenuato

Sensor voltage

detection

Amplifier

Insulation

amplifier

eliminatio

Effective

value

calculatio

Absolute

value

eterminatio

Peak

detection

Frequenc

filter

Effective

value

calculatio

Smoothin

circuit

Smoothin

circuit

analog outp

(to V output

to Vm output

frequenc

to A output

ensor iscriminatio ignals

Peak

detection

Frequenc

filter

Phase

detection

Multiplie

circuit

Fig. 2.4-1 The analog circuit configuration

Smoothin

circuit

Amplifier

to Am output

to W analog

to Wm output

────────────────────────────────────────────────────

2.4 Internal Configuration

Page 32

External

al al

e l

From external control terminal

V frequency

signal

Frequency source selection

V signal

Wsignal

To D/A output terminal

GP-IB

RS-232C

Interface bus

────────────────────────────────────────────────────

Sens

discriminatio

signa

Excess V sign Excess A sign

Phase sign

Auxiliary sign

V range sign A range sign

Frequency rang

sign

Rectifier typ

selection signa

sign

A frequenc

CPU

ROM

RAM

I/O port

Display,ke

control

Interface

Optio

Frequency

counter

A sign

Input

election

/D convert

/A convert

Fig. 2.4-2 The digital circuit configuration

────────────────────────────────────────────────────

2.4 Internal Configuration

Page 33

────────────────────────────────────────────────────

Chapter

Before measureme

.1 Basic Use

Ste

Fit of clamp-on sensor and voltage cord

Power on the 3167

Connect to measuring object

Select of rectifier type

Select of display items

Select of measuring range

Described in sections:

Section 3.2 "Fitting Clamp-on Sensor and

Voltage Cord"

Section 3.3 "When the Power is Turned On"

3.4 "Self Test"

Section 3.5 "How to make the connections"

Section 4.1 "Selecting the Rectifier Type"

Section 4.2 "Selecting the Display"

Section 4.3 "Selecting the Range"

Power on the measuring object

Measurement

────────────────────────────────────────────────────

3.1 Basic Use

Page 34

────────────────────────────────────────────────────

.2 Fitting Clamp-on Sensor and Voltage Cord

.2.1 Compatible Sensor and Voltage Cord

(1) Clamp- on sensor

In this unit, uses CLAMP ON SENSOR (9270, 9271 or 9272) or UNIVERSAL CLAMP ON CT (9277, 9278 or 9279) for current input. The clamp sensors are sold separately, so select a proper sensor.

Compatible sensor

・9270 (rated at 20 A AC) ・9271 (rated at 200 A AC) ・9272 (rated at 20 A AC or 200 A AC, ranges are changeable) ・9277 (rated at 20 A AC/DC) ・9278 (rated at 200 A AC/DC) ・9279 (rated at 500 A AC/DC)

WARNIN

CAUTIO

(2) Vol tage cord

Use attached 9179 VOLTAGE CORD. A fuse is located in the voltage cord for additional protection. Always use a fuse of the specified rating.

M0.3 A/250 V arc quenching fuse, 20 mm ×5.2 mm dia.

On care of cables, please keep following notes

Before using the product, make sure that the insulation on the sensor and power cord is undamaged and that no bare conductors are improperly exposed. Using the product under such conditions could result in electrocution. Replace the sensor and voltage cord (9179) specified by Hioki.

・Avoid stepping on or pinching the cable, which could damage the cable

insulation.

・Keep the cables well away from heat sources, as bare conductors could be

exposed if the insulation melts.

────────────────────────────────────────────────────

3.2 Fitting Clamp-on Sensor and Voltage Cord

Page 35

────────────────────────────────────────────────────

.2.2 Fitting Method of Clamp-on Sensor and Voltage Cord

(1) Fittin g method of clamp-on sensor

Connect a CLAMP ON SENSOR (9270, 9271 or 9272) or a UNIVERSAL CLAMP ON CT (9277, 9278 or 9279) to the clamp-on sensor connector. Push the connector in until you hear a click and it is securely locked.

(2) Fittin g method of voltage cord

Insert the attached VOLTAGE CORD (9179) into the connector, then lock it securely with the arms.

NOTE

────────────────────────────────────────────────────

Align the projection with the slot and insert.

3.2 Fitting Clamp-on Sensor and Voltage Cord

Page 36

────────────────────────────────────────────────────

.3 When the Power is Turned On

.3.1 When using the AC adapter

(1) Confirm power switch on front panel is "OFF". (2) Connect voltage cord and current sensor. (3) Connect attached AC adapter to AC power inlet on rear panel. (4) Connect power code to the power outlet (5) Turn on the power switch on front panel. (6) All Indicators on front panel illuminate and begin self testing. (Refer to

3.4 "Self Test" for details.) This test ends about for 10 seconds.

WARNIN

CAUTIO

NOTE

Use only the supplied Model 9418-10 AC ADAPTER (PSA-30U-120, PHIHONG). AC adapter input voltage range is 100 to 240 VAC (with ±10% stability) at 50/60 Hz. To avoid electrical hazards and damage to the product, do not apply voltage outside of this range.

When power is turned off, do not apply voltage or current to the voltage input terminal and clamp-on sensor. Doing so may damage the product.

Before measuring, please perform a warm-up at least for 30 minutes after the power is turned on.

────────────────────────────────────────────────────

3.3 When the Power is Turned On

Page 37

────────────────────────────────────────────────────

.3.2 When a DC Power Supply Is Used

When a battery or other DC power supply is used, use a connector plug with the positive terminal on the inside.

Battery

To prevent accidents, ground the negative side or connect it to the frame.

(1) When the test sample is grounded, connect the negative side to ground.

(For example: testing power lines indoors or outdoors, connect the negative side to ground.)

(2) When the test sample is on a chassis ground isolated from ground, connect the

negative side to the chassis ground. (For example: for vehicle-borne measurements, for testing vehicle parts when the vehicle frame is taken as ground for the measurement, connect the negative side to the frame.)

The power connector dimensions:

2.1 mm dia

5.5 mm dia

9.5 mm

The 3167 does not detect the battery voltage, so during long-term operation, it is necessary to carry out separate checks on the battery.

────────────────────────────────────────────────────

3.3 When the Power is Turned On

Page 38

)

────────────────────────────────────────────────────

.4 Self Test

Indications in self test shifts as follows:

(1) All indicators illuminate (2) Display a 3167

Display b Software version number Display c The rating of clamp-on sensor (when sensor is not connected,

"none" is displayed.)

Display example

Display

(3) When the optional interface is fitted, displayed as follows:

Display a Option name (9588:GP-IB INTERFACE, 9592:RS-232C INTERFACE) Display b baud rate (In GP-IB, nothing is displayed) Display c Setting contents (GP-IB:address, RS-232C:data length, parity,

stop bits, control mode)

Display example of G P-IB

Display

(address 1) (talk only

Display c

Display example of RS-232C

Display

(4) After self checking, errors are indicated in case that unusual matter is

founded. (5) Nothing is displayed for two seconds. (6) Enter normal measurement state.

For error indications, refer to 5.14.3 "Error indications".

────────────────────────────────────────────────────

3.4 Self Test

Page 39

────────────────────────────────────────────────────

NOTE

・Settings at the power is turning on become previous condition. (Backup

function) However, this function does not work when internal lithium battery is used up. In this case, error is indicated at the power is turning on.

・The battery would run down after six years. Please contact your nearest

service representative for battery change.

・Don’t press the keys unnecessarily during self testing.

If the clamp-on sensor is different from the one which was connected when the unit was last powered off, after self-tests (1), (2) and (3) have been displayed, the clamp-on sensor rating display flashes.

Display example of 200 A AC/DC sensor

CAUTIO

NOTE

At this point, press any key one time to confirm the sensor. (display lights) When clamp sensor is not connected or is pulled out, displayed as shown below:

At this point, connect clamp sensor after the power is turned off.

In order to prevent damages of this unit and the sensor, never plug in or unplug the sensor connector when the power is turned on.

Settings or operations depend on the sensor change as shown below:

1. Rectifier type AC+DC RMS (AC RMS in sensor dedicated for AC)

2. Current range Maximum range

3. Integration Stops forcibly or data reset

If the same sensor is connected, the integration calculation is forcibly stopped, but other settings remain unchanged.

────────────────────────────────────────────────────

3.4 Self Test

Page 40

────────────────────────────────────────────────────

.5 How to make the connections

Explains how to make the connection of this unit.

・After fitting the clamp sensor and voltage cord and power is turned on, make

connection.

・To measure accurately, the leads should connect correctly. ・Erroneous wiring may cause an accident. Please pay particular attention to

the following points.

.5.1 Before connection to circuit

DANGE

WARNIN

CAUTIO

The maximum input voltage (maximum sustainable input) is 600V DC/AC. Attempting to measure voltage in excess of the maximum input could destroy the product and result in personal injury or death.

・Check the measurement range before taking measurements.

Note that the product may be damaged if the applied voltage or current exceeds the measurement range.

・A fuse is located in the voltage cord for additional protection. ・In the event this fuse is blown replace it with a fuse of the specified rating.

(M0.3 A/250 V arc quenching fuse 20 mm ×5.2 mm dia.)

・Turn on the power and make sure that the power meter does not display

"Err".

NOTE

────────────────────────────────────────────────────

3.5 How to make the connections

Accurate measurement may be impossible in the presence of strong magnetic

fields, such as near transformers and high-current conductors, or in the

presence of strong electromagnetic fields such as near radio transmitters.

Page 41

────────────────────────────────────────────────────

.5.2 Notes When making the Connections

When the unit is connected to the live line, please pay particular attention to the following points:

Safety gear

DANGE

WARNIN

Clamp sensor and voltage cord should only be connected to the secondary side of a breaker, so the breaker can prevent an accident if a short circuit occurs. Connections should never be made to the primary side of a breaker, because unrestricted current flow could cause a serious accident if a short circuit occurs. Do not allow the voltage cord clips to touch two wires at the same time. Never touch the edge of the metal clips. When the clamp sensor is opened, do not allow the metal part of the clamp to touch any exposed metal, or to short between two lines, and do not use over bare conductors.

To avoid electric shock when measuring live lines, wear appropriate protective gear, such as insulated rubber gloves, boots and a safety helmet.

Cable handling

CAUTIO

・Avoid stepping on or pinching the cable, which could damage the cable

insulation.

・Do not use the damaged cables. ・Keep the cables well away from heat sources, as bare conductors could be

exposed if the insulation melts.

────────────────────────────────────────────────────

3.5 How to make the connections

Page 42

────────────────────────────────────────────────────

Clamp sensor handling

CAUTIO

DANGE

・To avoid damage to the product, protect it from vibration or shock during

transport and handling, and be especially careful to avoid dropping.

・Never disconnect the clamp sensor from the connecter of the main unit

which is connected to the live lines. Since power is supplied from the main unit, damage to the unit is possible. If disconnects the sensor from the connector, applying input without power supply may damage the unit.

・Use only specified clamp-on sensor or voltage cord. ・Taking the sensor apart may damage the open-close mechanism that could

result in and inoperative unit.

Notes when using CT

While supplying electricity to the current transformer, if the secondary is open-circuited an extremely high voltage appears across the secondary terminals, destroying the insulation and causing an electrical accident. This unit can carry out measurement with a clamp-on sensor without open-circuiting the secondary side, but when connecting it to other instruments, to avoid the possibility of an electrical accident, short-circuit the secondary side.

DANGE

How to clamp the clamp sensor to the line

To avoid short circuits and potentially life-threatening hazards, never attach the clamp sensor to a circuit that operates at more than AC 600Vrms, or over bare conductors.

────────────────────────────────────────────────────

3.5 How to make the connections

Page 43

────────────────────────────────────────────────────

NOTE

Source side

・ mark is on the core section of clamp-on sensor. ・Position the sensor so that the

mark points the direction of the load,

and then close the core section (with the lever)

Current direction arrow Point the direction of the load

Load side

Electric wire

Source side

Load side

Current direction arrow Point the direction of

the load

.5.3 How to make connections

Procedure

(1) Connect the clamp-on sensor to the clamp-on sensor connector on the rear

panel

(2) Plug the voltage cord into the voltage cord connector with the correct

polarity and lock the arms securely. (3) Turn on the power. (4) Connect the red and black voltage cord to the conductor to be measured. (5) Clamp the clamp sensor to the line to which the red voltage cord is

connected with the

load.

Power supply

side

mark facing from the power supply toward the

Load

side

Blac

────────────────────────────────────────────────────

3.5 How to make the connections

Page 44

────────────────────────────────────────────────────

3.5 How to make the connections

Page 45

V±Sensor input

V Indicate

A Indicate

W Indicate

AC+DC RMS

AC RMS

AC VMEAN

AC+DC RMS

AC RMS

────────────────────────────────────────────────────

Chapter

Basic Operatio

.1 Selecting the Rectifier Type

(1) This equipment equips four way type rectifier circuit. It is necessary to select

one rectifier type before start measuring. However, when using AC clamp-on sensor, selection may not be possible.

DC Measure DC only. (AC clamp-on sensor cannot be

selected)

AC+DC (RMS) Measure AC only or true RMS value AC and DC mixed.

(AC clamp-on sensor cannot be selected) AC (RMS) Measure AC only or true RMS value. AC (V MEAN) Measure AC only average rectifier effective value

converted for voltage, true RMS value for current.

Insulating

amplifier

RMS

conversion

Mean

conversion

Filter

────────────────────────────────────────────────────

RMS

conversion

Quadrant

multiplication

Fig. 4.1-1 Rectifier type overview

Filter

4.1 Selecting the Rectifier Type

Page 46

DC AC + DC (RMS) AC (RMS) AC (V MEAN)

AC (RMS) AC (V MEAN)

SHIFT

RECTIFIER

────────────────────────────────────────────────────

(2) The present rectifier type displays on rectifier display.

Fig. 4.1-2 Rectifier display

(3) To change the type execute as follows.

Press the Press the

key to illuminate the shift lamp (Shift condition).

key, the rectifier type is changed and shift lamp puts

out.

Select suitable rectifier type repeating these operation. In this operation, shift condition is canceled with every key operation after that.

AC/DC Clamp Sensor

AC Clamp Sensor

NOTE

・When selecting DC, it is possible to display the polarity of voltage and

current.

・When selecting AC+DC or AC the displayed value of voltage and current

become always plus.

・For sine wave, both "average rectifier effective value converted (MEAN)" and

"real effective value (RMS)" indicate correct effective value. However, only "real effective value" indicates correct value for the input which include distorted wave or DC element.

・After starting integration, rectifier cannot change until the integration data

is reset. Also cannot change when display is under holding state.

────────────────────────────────────────────────────

4.1 Selecting the Rectifier Type

Page 47

)

time (TIME)

)

────────────────────────────────────────────────────

.2 Selecting the Display

(1) Each time the

according to the following cycle.

Voltage (V) Current (A) Active power (W

(2) Each time the

according to the following cycle.

Voltage (V) Current (A) Active power (W

(3) Each time the

according to the following cycle.

Voltage (V) Current (A) Active power (W) Apparent power (VA)

key is pressed, the selected item for display a shifts

key is pressed, the selected item for display b shifts

key is pressed, the selected item for display c shifts

Integrate elapsed

Reactive power (var) Power factor (PF) Phase angle (deg) Frequency (Hz) Plus integrate value (+Ah/Wh)

Minus integrate value (-Ah/Wh) Total integrate value (ADD Ah/Wh

(4) During the integrate value is displayed, following mark is displayed on

integration display.

＋ : Display plus integrate value

− : Display minus integrate value

ADD : Display total integrate value

────────────────────────────────────────────────────

Fig. 4.2 Integration display

4.2 Selecting the Display

Page 48

500 Hz range

50 kHz range

────────────────────────────────────────────────────

(5) When selecting "TIME" in display b, integrate elapsed time is displayed as

follows;

From 0 minute to 99 hours and 59 minute

From 1000 hours to 9999 hours and 59 minute

From 100 hours to 999 hours and 59 minute

10000 hours

(6) In frequency display, the frequency measurement range is displayed as follows;

On shipping, frequency for voltage input is able to measure until 500 Hz. Refer to Chapter 5 "Applied Operation" when measuring current input or frequency over 500 Hz.

NOTE

Under setting condition, constants or condition is displayed on the display.

────────────────────────────────────────────────────

4.2 Selecting the Display

Page 49

────────────────────────────────────────────────────

.3 Selecting the Range

(1) Setting limits

Voltage range

15 V, 30 V, 60 V, 150 V, 300 V, 600 V Current range (Range setting limit differs according to the rating of the clamp-

on sensor.) Sensor rated at 20 A (9270, 9272, 9277) 2 A, 5 A, 10 A, 20 A

Sensor rated at 20 A (9271, 9272, 9278) 20 A, 50 A, 100 A, 200 A Sensor rated at 500 A (9279) 50 A, 100 A, 200 A, 500 A

Active power, reactive power and apparent power are combined with voltage and current range. Refer to table 2.1 in Section 2.1 "Specifications".

Active input limit (accuracy assuring limit) is 10 % to 110 % for range. (10 % to 100 % only in 600 V range)

NOTE

Indicatable limit is 0.4 % to 130 % for range. In case of over this limit, following mark is displayed (this means out of range).

・After starting integration, rectifier cannot change until the integration data

is reset. Also cannot change when display is under holding state.

・When the "o.r" indication appears, other display values may be affected;

change to an appropriate range.

────────────────────────────────────────────────────

4.3 Selecting the Range

Page 50

)

────────────────────────────────────────────────────

(2) Settin gs

Voltage rang

⇒ ⇒⇒⇒⇒⇒

AUTO 15 V 30 V 60 V 150 V 300 V 600 V

←←←←←←

Range u

Range down

Current range

9270, 9272, 927

(Sensor rated at 20 A

9271, 9272, 927

(Sensor rated at 200 A

9279

(Sensor rated at 500 A

⇒ ⇒ ⇒ ⇒

AUTO 2A 5A 10 A 20 A

← ← ← ←

⇒ ⇒ ⇒ ⇒

AUTO 20 A 50 A 100 A 200 A

←←←←

⇒ ⇒ ⇒ ⇒

AUTO 50 A 100 A 200 A 500 A

← ← ← ←

Range u

Range down

Range u

Range down

Range u

Range down

Fig. 4.3 Range display

────────────────────────────────────────────────────

4.3 Selecting the Range

Page 51

W W W

────────────────────────────────────────────────────

(3) Auto-ranging function

Auto means auto-ranging function. Shift level for auto-ranging function shows as follows;

NOTE

hen measuring value is over 110% for range hen OVER lamp is illuminated hen measuring value is less than 30% for range

Range up Range down

To release auto-ranging function press any key for range setting.

・In auto-ranging function sometimes range goes on up and down according to

distortion of input wave or size of measuring value. In this case, release auto-ranging function and select range manually.

・OVER lamp illuminates when peak value of voltage input and current input

waveform are over three times for range. In this case, internal circuit works abnormally. Select the range not to illuminate OVER lamp.

・When over input is applied such as out of range displayed by either voltage

or current, sometimes other measuring value become abnormal. Be sure to select the range not to show out of range or illuminate OVER lamp in both voltage and current.

・Apparent power shows out of range when either voltage or current shows

same display. Reactive power, power factor and phase angle shows out of range when either active power and apparent power shows same display. Power factor and phase angle shows out of range when apparent power is 0.

DANGE

Do not apply input that exceeds the maximum sustainable input. Doing so may damage the unit or cause an accident that might result in injury or death. Stop measurement promptly.

────────────────────────────────────────────────────

4.3 Selecting the Range

Page 52

HOLD

────────────────────────────────────────────────────

.4 Holding the Display

Press the

key, holding lamp is illuminated and preserve all measuring value at that point. (Hold state) Press the

key again, this lamp is turned off, and return normal measuring condition.

Holding lam

Under hold state, operating is controlled as follows; (1) Shifting of range and rectifier type are not allowed. (Error No.016 is

displayed.)

(2) Following settings are unable to change which are explained in Chapter 5.

"Applied Operation". (Error No.017 is displayed.)

Items Abbreviation

Selecting frequency measurement source and range Setting integrate time and items Setting PT ratio Setting CT ratio Selecting number of averaging Selecting D/A output items

────────────────────────────────────────────────────

4.4 Holding the Display

Page 53

SHIFT

DEMAG

────────────────────────────────────────────────────

.5 Demagnetizing

When using an AC/DC clamp-on sensor to measure DC, the sensor may become magnetized. Always carry out demagnetizing before beginning measurement operations.

Demagnetizing method

(1) Disconnect the clamp-on sensor from measurement line and close the core

section tightly. (2) Press the (3) Press the (4) During demagnetizing, "

measurement is not executed for about 4 seconds.

key to light shift lamp. key to carry out demagnetization.

" is displayed and

NOTE

・Ensure that no input is applied while carrying out demagnetization. ・When using an AC sensor, demagnetizing is not executed. ・During integrating, demagnetizing cannot be executed. ・When demagnetizing is executed by pressing the demagnetizing key on the

Universal clamp-on CT, numerical value is displayed on the display of the main unit.

・During demagnetizing, various waveforms may appear on the analog output

and monitor output, but this is not a malfunction.

Demagnetizing ke

────────────────────────────────────────────────────

4.5 Demagnetizing

Page 54

────────────────────────────────────────────────────

4.5 Demagnetizing

Page 55

────────────────────────────────────────────────────

Chapter

Applied Operatio

.1 Items Set by Setup Keys

Following items require setting by setup key.

Items

Selecting frequency measurement source and range

Setting integrate time and items

Setting PT ratio

Setting CT ratio

Selecting the number of averaging

Selecting D/A output items

Setting GP-IB address

Setting RS-232C

Abbreviation

Selecting printing items for GP-IB listen only printer or RS-232C printer

Setting printing interval time for GP-IB listen only printer or RS-232C printer

to are applied to this setting when 9588 GP-IB INTERFACE or 9592 RS-

232C INTERFACE (provided as an option) is equipped.

────────────────────────────────────────────────────

5.1 Items Set by Setup Keys

Page 56

SHIFT

SET UP

ITEM

ENTER

ITEM

SET UP

SHIFT

START/STOP

────────────────────────────────────────────────────

.2 Operating Setup Keys

"Setup key" means every key shown in figure 5.2 Those key work as "Setup key" during shift lamp is lightening. During shift lamp is put out, this function does not work. However, those key work as the function shown with black letters above them.

Fig. 5.2 Setup keys

Function of those keys are shown with blue letters or marks under them. Overview for operating is as follows;

(1) Press the

key and illuminate shift lamp. Then press the would be setting condition. To return to normal measuring condition, press the

(2) Press the

key again.

key under setting condition setting items shift according to the following cycle.

FREQ INTG PT CT AV

GP-IB

DATA OUT D-A OUT

RS-232C

Setting items and present setting condition and so on are displayed. Changeable setting value and so on flash.

(3) To change setting condition press

, ,

▲

▼

They select mode or digit or increase and decrease values and so on.

(4) Changed setting condition is decided by pressing the

key. At this time

flashing stops. (light becomes normal condition)

(5) To continue changing setting items press the

key again.

key it

key.

NOTE

(6) Press the

During integrating (for RUN lump is lightening,) it cannot be changed to

key, return to normal measuring condition.

setting display. (For invalid key operation error No.012 is displayed.) To move to setting stop integrating by pressing the

key.

Refer to 5.4 "Integration" for details.

────────────────────────────────────────────────────

5.2 Operating Setup Keys

Page 57

)

ENTER

SET UP

ITEM

SET UP

HOLD

────────────────────────────────────────────────────

.3 Frequency Measurement

(1) Setup keys are able to select frequency measurement source (either voltage or

current waveform frequency) and frequency measurement range (either auto range or fix range 500 Hz or 50 kHz). Display example under setting condition is shown as follows;

Display a Display b Display c

(500 Hz range) (In Auto-range function

NOTE

(2) To select frequency source press

▲

▼

key during display b is

flashing. (V or A) To select range press

Pressing

, key can exchange flashing of display b for display c.

, key during display c is flashing.

(500 Hz, 50 kHz or AUTO)

(3) Pressing the

key stops flashing and decide settings. Internal settings

does not change until this is operated.

(4) When changing settings again press

, ,

▲

Flashing indication appears. (5) To return to normal measuring condition press the (6) To move to integration setting press the

key.

・When there is no flashing indication, setting cannot be changed (during

holding display). At this time, press the measurement and press the

key to release holding condition.

key to return to

・Frequency is able to measure in following limits.

In 500 Hz range 4 Hz to 500 Hz In 50 kHz range 400 Hz to 50 kHz When it exceeds measuring limit following mark is displayed. (out of range)

▼

key.

・When the auto range mode is selected for frequency measurement, if there

is no input, or if the input is outside the permitted range, the display appears as follows:

・The 3167 has a low-pass filter to remove harmonics which exceed the upper

limit of measurement and ensure that the target frequency can be measured correctly. The cut-off frequency of this filter is switched together with the range.

────────────────────────────────────────────────────

5.3 Frequency Measurement

Page 58

ENTER

SET UP

ITEM

SET UP

HOLD

SHIFT

RESET

SHIFT

START/STOP

SHIFT

START/STOP

────────────────────────────────────────────────────

.4 Integration

.4.1 Settings

(1) Setup keys are able to select integrate items (either current or power

integration) and set integrate time. Display example under setting condition is shown as follows;

Display a Display b Display

or W

hours minute

NOTE

(2) To select integrate items press

▲

flashing. During flashing display c values can change by

To move the digit flashing press

▼

key during display b is

▲

, key. It can also select

▼

whether to select integrate items or to set integrate time. The setting limit of integrate time is 1 minute to 10000 hours. To set 10000 hours, set values to zero in all digits.

(3) Pressing the

key stops flashing and decide the settings. As long as this

key is pressed, internal settings are unable to change.

(4) When changing settings again press

, ,

▲

▼

Flashing indication appears. (5) To return to normal measuring condition press the (6) To move to PT setting press the

key.

When there is no flashing indication, setting cannot be changed (during

holding display or integrating). At this time, press the

to measurement and press the

press the

and

keys to reset integrating data.

key to release holding condition or

key to return

key.

.4.2 Integrating

(1) Integrating can start by following two way.

By key operation By external control signal (Refer to 5.13.2 "External Control Terminal")

(2) To start integrating lighten shift lamp by pressing the

the

key under normal measuring condition. simultaneously RUN

lamp on the display is lit. (3) To stop integrating lighten shift lamp by pressing the

the

────────────────────────────────────────────────────

5.4 Integration

key. Simultaneously RUN lamp on the display is gone off.

key and press

key, and press

Page 59

SHIFT

RESET

────────────────────────────────────────────────────

(4) If integration is stopped then started again, the integration count will

continue from the previous cumulative value.

(5) Integrating value must be reset when you want to begin it from 0 after

stopping. To reset values lighten shift lamp by pressing the press the

key.

key and

(6) Integrating would stop under following condition.

When achieving integrate time. When stopped by key operation. (or by ":INTEGrate:STATe STOP"

command of GP-IB or RS-232C) When integrate time achieve 10000 hours. When integrate value achieve ±999999 MAh (MWh). When disconnects clamp-on sensor from this unit or changes of the rating of

the clamp-on sensor. (While outputting to the printer, prints integrate

elapsed time and an error comment of "SENSOR ERROR".

NOTE

・When starting integration auto range setting is released and fixed on

starting point. It is necessary to set range not to be over inputting while integrating. If during integration an input value exceeds 130 % of the current range setting, the value added is just 130 % of the range. The Ah or Wh unit indication flashes to indicate that an out-of-range value has occurred. This continues flashing until the integration value is reset.

・When lightening RUN lamp for integration, range and rectifier can not

change. And setup keys are invalid. (error No.012 is displayed)

・Even if RUN lamp is turned off, when there is integrate data (the data is

not reset) range and rectifier are unable to change. (error No.012 is displayed) As following table, one of setup keys function are invalid. And in case of holding display under this condition, changeable items are limited.

Items Display Change

Selecting frequency measurement source and range Yes Yes No Setting integrate time and selecting integrate items Yes No No Setting PT ratio Yes No No

Change in

holding condition

Setting CT ratio Yes No No Selecting the number of averaging Yes Yes No Selecting D/A output items Yes Yes No Setting GP-IB address Yes Yes Yes

Setting RS-232C Yes Yes Yes

Selecting printing items for GP-IB listen only printer or RS-232C printer

Setting printing interval time for GP-IB listen only printer or RS-232C printer

────────────────────────────────────────────────────

Yes Yes Yes

5.4 Integration

Page 60

SHIFT

RESET

────────────────────────────────────────────────────

・When integrated by external control, display in table above would be as

follows;

(W)

・During lightening RUN lamp for integration, resetting is out of order (error

No.015 is displayed). Resetting must be done after stopping integration.

・On starting and stopping integration key operating (and START command

of GP-IB or RS-232C) and external control are unable to mix (error No.011 is displayed).

・When using external control, integrating has no relation to integrate time

which is set according to 5.4.1 "Settings". After all, integration stops in following cases.

Stopped by external control signals. When the integrate time achieves 10000 hours.

When the integrate value achieves ±999999 MAh (MWh).

When disconnects clamp-on sensor from this unit or changes of the rating of

clamp-on sensor. (While outputting to the printer, prints integrate elapsed time and an error comment of "SENSOR ERROR".)

But, integrate elapsed time can display normally same as key operating.

・During displaying "S. Err", integrating cannot start (error No.013 is

displayed). In this case, change PT ratio and CT ratio. Refer to Section 5.5 "PT Settings" or 5.6 "CT Settings".

・When the integrate value achieves "999999M" or when the integrate time

achieves 10000 hours, integrating cannot restart. (Error 014) In this case, press the

and

keys to reset integrating data.

・When equip 9588 GP-IB INTERFACE provided as an option, set the unit to

printer mode and connect GP-IB listen only printer, measuring value which is set in 5.11 "Selecting the Printing Items" are able to print according to every certain interval simultaneously as starting integration.

・When equip 9592 RS-232C INTERFACE provided as an option, set the unit

to printer mode and connect RS-232C printer, measuring value which is set in 5.11 "Selecting the Printing Items" are able to print according to every certain interval simultaneously as starting integration.

・When doing system resetting, integrating is stopped and the equipment is

reset to initial condition. For system resetting refer to 5.14.2 "System Resetting".

・When the clamp-on sensor is disconnected from the unit and a different

clamp-on sensor connected, or when the rating of the clamp-on sensor is changed, the new clamp-on sensor rating is displayed flashing. At this point, any key input, or the receipt of a GP-IB or RS-232C command, resets the integration value. On returning to the original clamp-on sensor or original rating, the integration value is not reset.

・When the power is cut off during integrating, integration starts again after

returned. If during printing, print integrate elapsed time and power cut comment "POWER FAILURE".

────────────────────────────────────────────────────

5.4 Integration

Page 61

9270, 9272, 9277 (Sensor rated at 20 A )

9271, 9272, 9278 (Sensor rated at 200 A)

9279 (Sensor rated at 500 A)

9270, 9272, 9277 (Sensor rated at 20 A)

────────────────────────────────────────────────────

.4.3 Display Format of Integrating Value.

Format in integration reset are showed in table 5.4-1 and 5.4-2. Digits of integrate value and integrate range format carry up or down simultaneously. (However, digits do not carry down in integration reset format.)

Table 5.4-1 Constitution of current integrate range

A range 2.000 A 5.000 A 10.00 A 20.00 A

Reset value 0.00000 Ah 0.00000 Ah 00.0000 Ah 00.0000Ah

A range 20.00 A 50.00 A 100.0 A 200.0 A

Reset value 00.0000 Ah 00.0000 Ah 000.000 Ah 000.000 Ah

A range 50.00 A 100.0 A 200.0 A 500.0 A

Reset value 00.0000 Ah 000.000 Ah 000.000 Ah 000.000 Ah

Table 5.4-2 Constitution of power integrate range

15.00 V 00.0000 Wh 00.0000 Wh 000.000 Wh 000.000 Wh

30.00 V 00.0000 Wh 000.000 Wh 000.000 Wh 000.000 Wh

60.00 V 000.000 Wh 000.000 Wh 000.000 Wh 0.00000 kWh

150.0 V 000.000 Wh 000.000 Wh 0.00000 kWh0.00000 kWh

300.0 V 000.000 Wh 0.00000 kWh0.00000 kWh0.00000 kWh

2.000 A 5.000 A 10.00 A 20.00 A

600.0 V 0.00000 kWh0.00000 kWh0.00000 kWh00.0000 kWh

────────────────────────────────────────────────────

5.4 Integration

Page 62

9271, 9272, 9278 (Sensor rated at 200 A)

9279 (Sensor rated at 500 A)

────────────────────────────────────────────────────

15.00 V 000.000 Wh 000.000 Wh 0.00000 kWh0.00000 kWh

30.00 V 000.000 Wh 0.00000 kWh0.00000 kWh0.00000 kWh

60.00 V 0.00000 kWh0.00000 kWh0.00000 kWh00.0000 kWh

150.0 V 0.00000 kWh0.00000 kWh00.0000 kWh00.0000 kWh

300.0 V 0.00000 kWh00.0000 kWh00.0000 kWh00.0000 kWh

600.0 V 00.0000 kWh00.0000 kWh00.0000 kWh000.000 kWh

15.00 V 000.000 Wh 0.00000 kWh0.00000 kWh0.00000 kWh

30.00 V 0.00000 kWh0.00000 kWh0.00000 kWh00.0000 kWh

60.00 V 0.00000 kWh0.00000 kWh00.0000 kWh00.0000 kWh

150.0 V 0.00000 kWh00.0000 kWh00.0000 kWh00.0000 kWh

300.0 V 00.0000 kWh00.0000 kWh00.0000 kWh000.000 kWh

600.0 V 00.0000 kWh00.0000 kWh000.000 kWh000.000 kWh

20.00 A 50.00 A 100.0 A 200.0 A

50.00 A 100.0 A 200.0 A 500.0 A

Example

What is integration resetting value ?

Display format of current range and active power range applies to integrate value format under reset condition.

Range Display forma

30 W 30.00 W 30.0000 Wh 00.0000 Wh

1.5 kW 1.500 kW 1.50000 kWh 0.00000 kWh

Also in scaling display format applies to integrating value format.

Range Display forma

30 W×5(CT) 150.0 W 150.000 Wh 000.000 Wh

Integrating

value format

Integrating

value format

Reset value

────────────────────────────────────────────────────

5.4 Integration

Page 63

ENTER

SET UP

ITEM

SET UP

HOLD

SHIFT

RESET

ENTER

────────────────────────────────────────────────────

.5 PT Settings

(1) When using external PT, upstream value can read directly by operating with

setup key. (scaling function) Display example under setting condition would be as follows;

Display a Display b Displ ay c

NOTE

(2) When display c is flashing values can change by

▲

▼

key. (The digits do not carry up or down.) To move flashing digit press key.

(3) When left side digit is flashing, decimal point flashes by pressing

When right side digit is flashing decimal point flashes by pressing When decimal point is flashing it can move by

(4) Pressing the

key stops flashing and decide settings. As long as this

▲

▼

key.

key is pressed, internal settings unable to change. Scaling lamp is lit when PT is except 1. (Refer to figure 5.5)

(5) When changing settings again, press

, ,

▲

▼

Flashing indication appears.

(6) To return to normal measuring condition press the (7) To move to CT setting press the

key.

・When there is no flashing indication, setting cannot be changed (during

holding display or integrating). At this time, press the to measurement and press the press the

and

keys to reset integrating data.

key to release holding condition or

key to return

・Setting limit of PT ratio is 1 to 9999. When display PT ratio less than 1

and press the

key, "1.000" is set forcibly.

・As result of scaling, if value is over the maximum value "9999M", following

mark is displayed. (Means scaling error)

key.

When active and apparent power become scaling error, reactive power, power factor, phase angle and power integrate value display this error too. However, when becomes out of range, "o.r" is displayed.

Fig. 5.5 Scaling lamp

────────────────────────────────────────────────────

5.5 PT Settings

Page 64

Display a Display b Display c

ENTER

SET UP

ITEM

SET UP

HOLD

SHIFT

RESET

ENTER

────────────────────────────────────────────────────

.6 CT Settings

(1) When using external CT, upstream value can read directly by operating with

setup key. (Scaling function) Display example under setting condition would be as follows;

NOTE

(2) When display c is flashing values can change by

▲

digits do not carry up or down.) To move flashing digit press

▼

key. (The

key.

(3) When left side digit is flashing, decimal point flashes by pressing

When right side digit is flashing, decimal point flashes by pressing key. When decimal point is flashing it can move by

(4) Pressing the

key stops flashing and decide settings. As long as this

▲

▼

key.

key is pressed, internal settings are unable to change. Scaling lamp is lit when CT is except 1. (Refer to figure 5.5)

(5) When changing settings again, press , ,

▲

▼

Flashing indication appears. (6) To return to normal measuring condition press the (7) To move to average setting press the

key.

・When there is no flashing indication, setting cannot be changed (during

holding display or integrating). At this time, press the return to measurement and press the condition or press the

and

key to release holding

keys to reset integrating data.

key to

・Setting limit of CT ratio is 0.01 to 9999. When display CT ratio less than

0.01 and press the

key, "0.010" is set forcibly.

・As result of scaling, if values is over the maximum value "9999M", following

mark is displayed. (Means scaling error)

key.

・When active and apparent power become scaling error, reactive power,

power factor, phase angle, current and power integrate value display this error too. However, when out of range is showed, "o.r" is displayed.

────────────────────────────────────────────────────

5.6 CT Settings

Page 65

SHIFT

SET UP

ITEM

SET UP

HOLD

SHIFT

RESET

────────────────────────────────────────────────────

.7 PT and CT Setting Samples

Confirm whether hold lamp is turned off and integrate data is reset. (For integration refer to 5.4 "Integration".) When hold lamp is lit, setting is out of order. During integrating or in case of not reset integrate data in spite of stopping integration, setting is also unable.

Setting samples

In this section, explain when using following PT and CT. PT: Upstream 6,600 V Downstream 110 V (PT ratio 6,600÷110=60)

CT: Upstream 2,000 A Downstream 5 A (CT ratio 2,000÷5=400) Uses clamp-on sensor (9270) rated at 20 A

Procedure

(1) Press the (2) Press the

key and lighten shift lamp. key and make setting condition. Displays in this case

become as follows;

Flashing

If this equipment is changed from initial setting, which item of (3) is displayed.

(3) Press the

(4) Set PT. Press the

key, setting items shift according to the following cycle.

key and display following marks.

The highest unit flashing

(When PT ratio except 1 is already set that value is displayed.) Not flashing the highest unit means during the display holding or not reset the integrate data. At this time press the release holding state by the

key and return normal condition and

key or reset data by the

key, and then repeat from (1).

────────────────────────────────────────────────────

5.7 PT and CT Setting Samples

Page 66

)

ENTER

ITEM

ENTER

SET UP

────────────────────────────────────────────────────

(5) Set PT according to following order.

Press

▲

key 5 times.

key 5 times. Or press

▼

Flashing

Press key once. Or press key

4 times.

Press

▼

key once. Or press

▲

key

Flashing

3 times

Finally press the

By above operation, PT ratio is decided at 60

key.

Light (stop flashing

and scaling lamp is lit.

If shift next setting items or return normal measuring condition under

flashing condition PT remains previous settings.

(6) Next, set CT. After previous operation press the

key and display

following marks.

Flashing

The highest unit flashing

(When CT ratio except 1 is set that value is displayed)

(7) Set CT according to following order.

Press

▲

key 3 times. Or press

▼

key 7 times.

Press key once. Or press key

4 times.

Press

▲

key 2 times Or press

▼

key 2 times

Finally press the

key.

By above operation, CT ratio is decided at

400 and scaling lamp is lit.

(8) Next, when press the

key, shift lamp is turned off and return to

normal measuring condition. Scaling lamp is still light.

Flashing

Light (stop flashing)

────────────────────────────────────────────────────

5.7 PT and CT Setting Samples

Page 67

────────────────────────────────────────────────────

(9) Because range setting is set at downstream of PT and CT, as a rule make it

150 V and 5 A range. Resolvable range such as voltage, current on active power become as follows.

Voltage 9.000 kV (150 V ×60) Current 2.000 kA (5 A ×400) Active power 18.00 MW (150 V ×5A×60 ×400) Apparent power 18.00 MVA Reactive power 18.00 Mvar Current integration 0.00000 kAh (On starting integration) Power integration 0.0000 MWh (On starting integration)

────────────────────────────────────────────────────

5.7 PT and CT Setting Samples

Page 68

)

ENTER

SET UP

ITEM

SET UP

HOLD

────────────────────────────────────────────────────

.8 Selecting the Number of Averaging

(1) Average function is good when the measuring value is hard to read for its

instability. The 3167 performs movable averaging but can select its number.

(For frequency measurement, this function is invalid.) Display example under

setting condition would be as follows;

Display a Display b Displa y c

(2) During display c is flashing, the number of averaging can change by key

operation as follows;

Move to righ

→ → → → → → (64) OFF 8 16 32 64 (OFF ← ← ← ← ← ←

NOTE

Move to le

(3) Pressing the

key stops flashing and decide settings. As long as this key is pressed, internal settings are unable to change. Average lamp is lit when the number of averaging is except off. (Refer to figure 5.8)

Fig. 5.8 Average lamp

(4) When changing settings again, press

, ,

▲

Flashing indication appears.

(5) To return to normal measuring condition press the (6) To move to selecting D/A output press the

key.

・When there is no flashing indication, setting cannot be changed (during

holding display). At this time, press the measurement state and press the

key to release holding condition.

key to return to

・If during averaging an input value exceeds 130 % of the current range

setting, the value used for averaging is just 130 % of the range. While an averaged value which includes an out-of-range value is being displayed, the unit indication flashes to indicate this fact.

▼

key.

────────────────────────────────────────────────────

5.8 Selecting the Number of Averaging

Page 69

)

ENTER

SET UP

ITEM

SET UP

HOLD

────────────────────────────────────────────────────

.9 Selecting D/A output

(1) By converting the measurement data to a DC voltage, and outputting it to a

recorder, it is possible to monitor long-term changes at a glance. D/A output means the function which changes measuring data (digital value) to voltage (analog value). For voltage, current and active power use analog output. Both D/A and analog are output from rear panel connector. Refer to 5.13 "External Control Terminal and Output Terminal".

(2) Display example under setting condition would be as follows;

Display a Display b Display c

(3) Measuring data output from D/A is displayed by symbols in display c. During

unit symbols in display c is flashing, they shift according to the following cycle by key operation;

For integrated values, the current setting (current integration or power integration) is determined automatically and the corresponding value output.

Move to right

→ → → → → → → → →

(ADD Ah/Wh) VA var PF deg Hz +Ah/Wh -Ah/Wh ADD Ah/Wh (VA

← ← ← ← ← ← ← ← ←

Move to left

(4) Pressing the

key stops flashing and decide settings. As long as this

key is pressed, internal settings are unable to change.

(5) When changing settings again, press

, ,

▲

▼

key.

Flashing indication appears. (6) To return to normal measuring condition press the (7) To move to setting interface press the

key. However, when 9588 GP-

key.

IB INTERFACE or 9592 RS-232C INTERFACE is not equipped, return to first

frequency setting condition.

NOTE

────────────────────────────────────────────────────

When there is no flashing indication, setting cannot be changed (during

holding display or integrating). At this time, press the

to measurement state and press the

key to release holding condition.

5.9 Selecting D/A output

key to return

Page 70

-2V

-100 % f.s.

100%f.s.

Apparent power and reactive power

2V0V0V-0-0.51+0.5+02V

Power factor

-90°

+90°

LEAD LAG

Phase angle

0°0V0%fs.

50%f.s.

100%fs.

Frequency

)

────────────────────────────────────────────────────

(8) For D/A output example refer to figures 5.9-1 to 5.9-5.

Fig. 5.9-1 D/A output of apparent and reactive power

Fig. 5.9-2 D/A output of power factor

Fig. 5.9-3 D/A output of phase angle

Fig. 5.9-4. D/A output of frequency

Lower than 0.8 % f.s. becomes out of range. (Approx. 3.3 V In 500 Hz range, 500 Hz is 100 % In 50 kHz range, 50 kHz is 100 %

────────────────────────────────────────────────────

5.9 Selecting D/A output

Page 71

────────────────────────────────────────────────────

Figure 5.9-5 Examples of Chronological Changes of Integration D/A Output

(1) When the integrated value equals a multiple of "the measurement range

multiplied by the set integration time", the D/A output of the integration value

becomes 2V. For example, if the measurement range is 300W and the

integration time is set to 24 hours, when the integrated value is 7.2kWh (300

x 24), 14.4kWh (300 x 24 x 2), 21.6kWh (300 x 24 x 3)… its the D/A output will

be 2V (when it is a multiple of -7.2kWh, the D/A output will be -2V).

NOTE

(2) When integration has started, D/A output begins to change. When integration

has stopped, the last D/A output is maintained. When integration has

restarted, D/A output begins to change again.

(3) When the integration value is reset, D/A output returns to 0V.

(4) When the integration value exceeds ±2V, D/A output returns to 0V and then

begins to change again.

(5) If the displayed value is held (by the HOLD function) during integration, the

D/A output will be held, too. When the display HOLD is cancelled, D/A output

begins to change again according to integration value.

・About 3.3 V is output in plus out of range. About -3.3 V is output in minus

out of range.

・In holding or averaging, value on display is output.

・D/A exchanging rate is about five times/second. There is filter in output

circuit, and the response time is about a half seconds.

・When the display is under the holding state, D/A output items cannot be

changed.

・When integrating by external control, integrate time to be set × range

would be 2 Vf.s.. However, during external control, integration time set is not displayed. So check in advance.

────────────────────────────────────────────────────

5.9 Selecting D/A output

Page 72

)

Display a Display b Display c

ENTER

SET UP

ITEM

────────────────────────────────────────────────────

.10 Setting Interface

The settings displayed differ according to whether an optional 9588 GP-IB INTERFACE is fitted or an optional 9592 RS-232C INTERFACE is fitted.

.10.1 Setting the GP-IB Address

(1) When equipped 9588 GP-IB INTERFACE provided as an option this

equipment is able to remote control by GP-IB. Address is set by setup key. Setting limit of address is 0 to 30 and talk only. Display example under setting condition would be as follows;

Display a Display b Display c

(For address 1) (For talk only

(2) During display c flashing each of

able to change address. When address is "00", pressing, makes mode of talk only. When it is "30" pressing makes mode of talk only.

(3) Pressing the

this key is pressed, internal settings are unable to change.

(4) When changing settings again press

Flashing indication appears. (5) To return to normal measuring condition press the (6) To move to selecting the printing items press the

key stops flashing and decide the settings. As long as

.10.2 Setting the RS-232C Interface

(1) When equipped 9592 RS-232C INTERFACE provided as an option this equipment

is able to remote control by RS-232C. Baud rate, data length, parity, stop bits,

control mode are set by setup key. Setting value of each item are as follows:

Band rate 1200, 2400, 4800, 9600 bps

Data length 7,8 bits

Parity none, odd, even

Stop bits 1,2 bits

Communications mode Control mode (Co.), printer mode (Pr.)

Display example under setting condition would be as follows;

, ,

▲

key.

▼

▲

▼

key are

▼

key

key also

key.

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5.10 Setting Interface

Page 73

ENTER

SET UP

ITEM

────────────────────────────────────────────────────

(2) To select baud rate press the

▲

▼

key during display b is flashing.

(1200, 2400, 4800, 9600) To select data length press the

▲

▼

key during left side numeral

in display c is flashing. (7,8) To select parity press the

▲

▼

key during the second character

from left in display c is flashing. (n, o, E) To select stop bits press the

▲

▼

key during the third numeral

from left in display c is flashing. (1, 2) To select communications mode press the

▲

▼

key during the first

and second characters from right in display c are flashing. (Co, Pr) Flashing can be moved by pressing the

, key. Press the

key to shift flashing according to the following cycle; baud rate - data length - parity - stop bits - communications mode - baud rate…. Press the

key to shift flashing according to the following cycle; baud

rate - communications mode - stop bits - parity - data length - baud rate….

(3) Pressing the

key stops flashing and decide the settings. As long as

this key is pressed, internal settings are unable to change.

(4) When changing settings again press the

, ,

▲

key. Flashing indication appears.

▼

NOTE

(5) To return to normal measuring condition press the (6) To move to selecting the printing items press the

key.

When the unit is controlled by connection to a computer, set the communications mode to "Co." (control mode). Also, when connection to a printer, set to "Pr." (printer mode). If set to "Pr", TLK lamp lights.

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5.10 Setting Interface

Page 74

( m

(

ENTER

SET UP

ITEM

DATA OUT

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.11 Selecting the Printing Items

(1) When Equip 9588 GP-IB INTERFACE provided as an option, set address to

talk only, and connect GP-IB listen only printer measuring value are able to print to printer. When Equip 9592 RS-232C INTERFACE provided as an option, set communications mode to printer mode, and connect RS-232C printer measuring value are able to print to printer.

Display example under setting condition would be as follows;

Display a Displ ay b Display c

NOTE

(2) Select printing items with

In case not output voltage

easuring value)

, key. At this time, unit symbols of

In case output voltag

easuring value)

display b and c are lit and displays items. "ON" showed on display c means printing that item. "OFF" showed on display c means not printing that item. Whether on or off can change by pressing

▲

▼

key. Repeating

this operating and select "ON" or "OFF" for every items.

(3) Pressing the

key stops flashing and decide settings. As long as this

key is pressed, internal settings are unable to change.

(4) When changing settings again, press

, ,

▲

▼

Flashing indication appears. (5) To return to normal measuring condition press the (6) To move to setting the print interval time press the

key.

When all the printing items are set to "OFF", the effect of pressing the

key or of interval printing is to output the printer elapsed time and the values of the a, b and c displays. (Printing example: Section 6.8.8.) The values of the a, b, and c displays are produced by the "MEAS?" command.

key.

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5.11 Selecting the Printing Items

Page 75

ENTER

SET UP

ITEM

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.12 Setting the Print Interval Time

(1) When Equip 9588 GP-IB INTERFACE provided as an option, set address to

And at the same time of integration starting, in every certain intervals, measuring value which is set in 5.11 "Selecting the Printing Items" can print.

In this section, set that interval. Display example under setting condition would be as follows;

Display a Display b Display c

NOTE

hours minutes 10 second

(2) Flashing unit can move with

can change with

▲

▼

, key. Values of flashing unit

key. The smallest unit of setting limit is 10 seconds and biggest is 100 hours. If input more times, it is set to 100 hours in force at pressing the

(3) Pressing the

key stops flashing and decide settings. As long as this

key.

key is pressed, internal settings are unable to change.

(4) When changing settings again, press

, ,

▲

▼

Flashing indication appears.

(5) To return to normal measuring condition press the

key key.

(6) To return to first condition of frequency measuring press the

If the printing interval is set to 0, printing is synchronized with the start of integration is not executed.

key.

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5.12 Setting the Print Interval Time

Page 76

←About 50ms→

Wm waveform

Noise

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.13 External Control Terminal and Output Terminal

.13.1 Output Terminal

(1) Analog output (V, A, W terminals)

Outputs ±2 V DCf.s. direct voltage for range. Outputs simultaneously for voltage(V), current(A) and active power(W).

(2) Monitor output (Vm, Am, Wm terminals)

Waveform output 2 Vf.s. for range. Outputs simultaneously for voltage(V), current(A) and active power(W).

(3) D/A output (D/A OUT terminal)

Refer to 5.9 "Selecting D/A output". Output resistance of these terminals are about 100 Ω.

NOTE

・On the waveform of the monitor output for active power, there may be a

noise signal present for approximately 50 ms.

・Use ANALOG GND terminal for common of output terminal. ・Ensure that a ny instrument (recorder, digital multimeter,

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5.13 External Control Terminal and Output Terminal

Page 77

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.13.2 External Control Terminal

The external control terminals accept a 0/5 V logic signal or a relay contact short/open signal to control the unit. For details of the settings, refer to Section 5.4 "Integration", and Sections 5.10 "Setting Interface" through 5.12 "Setting the Print Interval Time".

CAUTIO

・Voltage applying except 0/5 V causes damages. ・If there is remarkable chattering in contact point signal sometimes controls

become abnormally.

・Use EXT GND terminal for common of external control terminal.

(1) Integration start and stop (INTEGRATOR START/STOP terminal)

Integrate tim

5 V (open)

0 V (short)

Integration start Integration stop

Fig. 5.13-1 Integration start/stop

(2) Reset integration (INTEGRATOR RESET terminal)

Over 300 msec

5 V (open)

0 V (short)

Resets during this term

Fig. 5.13-2 Reset integration

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5.13 External Control Terminal and Output Terminal

Page 78

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(3) Data output (Manual printing)

(print order for GP-IB listen only printer or RS-232C printer) (DATA OUT terminal)

Over 300 msec

5 V (open)

0 V (short)

print order is out put to printe during this term.

Fig. 5.13-3 Data output

(4) The circuit in external control terminal consists followingly.

+5 V

10 kΩ

1kΩ

74HC1

0.1 μF

Fig. 5.13-4 Internal circuit

Input termina

EXT GND

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5.13 External Control Terminal and Output Terminal

Page 79

Fig. 5.13-5

Making the connections

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.13.3 Making the Connections

(1) Use suitable wires bared at their ends for a length of about 10 mm. (2) As shown in figure 5.13-5, depress the knob on the terminal with a

screwdriver, and push the end of the wire into the connection hole.

(3) Release the screwdriver, and the wires will be locked into place. (4) Use the same procedure to remove the wires.

Recommended wire size Single strand

1.0 mm dia. (AWG #18) Multi-stranded

0.75 mm Usable wire Single strand

0.4 to 1.0 mm dia. (AWG 26 to 18)

Multi-stranded

0.3 to 0.75 mm

(AWG 22 to 20) strand diameter

at least 0.18 mm. Strand stripping length 10 mm

CAUTIO

NOTE

To prevent damage of this equipment, not apply input externally to output terminal.

・Analog output voltage is ±2 V DCf.s. for each range. Monitor output is 2

Vf.s. for each range. When using PT･CT, range multiplied by value of those is 2 V.

・When using measuring range as auto ranging, analog output rate changes

as range changing. Be careful of making mistake for range conversion when recording on the such line measuring value changes hard. In such measurement we advice you to measure in fixed ranging.

・Output response time is about 1.1 sec. Note that if there are fluctuations on

the line being measured which happen faster than the response time of the unit, errors in the output voltage may occur.

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5.13 External Control Terminal and Output Terminal

Page 80

Display b

Display c

SHIFT

RESET

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.14 Other Functions

.14.1 When the power is cut off

(1) When the power is cut off during integrating, integration starts again after

that.

(2) When the power is cut off during equipped 9588 GP-IB INTERFACE provided

as an option and using listen only printer, or equipped 9592 RS-232C INTERFACE as an option and using RS-232C printer, after returned,

When the power is cut off during data forwarding, reforward from the top

of the data.

When it is cut off during integrating, print integrate elapsed time and

power cut comment "POWER FAILUR".

(3) During above-stated transaction display following marks.

.14.2 System Resetting

After power turning on, press the self testing, you can do system resetting. (For self testing, refer to 3.4 "Self Test.") By above-stated operation, settings are reset following initial condition. (On shipping each settings are set under initial condition.) Integrate elapsed time or integrate value and so on are also reset.

and

key continuously during

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5.14 Other Functions

Page 81

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Items Settings

Display a Voltage Display b Current Display c Active power Voltage range 600 V Current range Sensor rated at 20 A : 20 A

Sensor rated at 200 A : 200 A Sensor rated at 500 A : 500 A

Rectifier t ype AC Clamp-on se nsor AC RMS

AC/DC Clamp-on sensor AC+DC RMS Frequency range 500 Hz Frequency measurement source Voltage Integrate time 1000:00 (1,000hours) Integrate items Active power PT ratio 1.000 CT ratio 1.000 D/A output items Appa rent power The number of averaging OFF (No averaging) Printing items All items Print interval time 000:00:00 (No interval printing) GP-IB address 1

Baud rate 9600 bps Data length 8bits

RS-232C

Parity bits none Stop bits 1bit

Communication mode

Control mode (Co.)

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5.14 Other Functions

Page 82

Example of error indication

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.14.3 Error indications

When there is something wrong for self testing at the power turning on or operates wrong key in integrating or holding the display, error indications are displayed.

A list of error indication

Error

number

001 Backup error 25 101 ROM error Requires repair 102 RAM error Requires repair 103 I/O port error Requires repair 104 Frequency measurement circuit error Requires repair 105 A/D and D/A converter error Requires repair 106 Display and key control circuit 1 error Requires repair 107 Display and key control circuit 2 error Requires repair 108 Interrupt handler fault Requires repair 109 RS-232C circuit error Requires repair 110 Clamp sensor is disconnected 25 011 Integration key operation and external control used together 46 012 Integration invalid key press during integration operation 45 013 Integration integration started while scaling error has 46 014 Integration restarted from maximum integration count or occurred

integration elapsed time

Errors Pages

015 Integration integration reset carried out during integration 46 016 Invalid key press during display hold 38 017 Invalid key press during setting 38 021 Interface data out or help operation carried out while not set to

"talk only" (GP-IB) or "printer mode" (RS-232C) Data out or help operation carried out when interface

or is not installed 022 Interface no space left in internal data buffer 152 023 Interface not connected printer, timeout occurred 163, 164

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5.14 Other Functions

163, 164

Page 83

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NOTE

・Error 001: When there is a backup error, pressing any key frees the display

and returns to the normal measurement state. The 3167, however, undergoes a system reset. (Refer to Section 5.14.2 "System Resetting".) This error happens when internal lithium battery is used up. Please contact your nearest service representative for battery change. The battery would run down after six years.

・Errors 101 to 109 indicate internal problems with the 3167. If these error

indications appear, the unit requires repair.

・Error 110 is displayed when sensor is disconnected. This is released by

connecting the sensor. However, before installing the sensor, turn off the power switch.

・If the sensor fitted is different from the one which was previously used, after

a power-on, after the self-tests have been completed, the clamp sensor rating display flashes. At this point, press any key to confirm the sensor.

Settings or operations depend on the sensor change, as indicated below.

1. Rectifier type AC+DC RMS (AC RMS in sensor dedicated for AC)

2. Current range Maximum range

3. Integration Stops forcibly or data reset

If the same sensor is connected, the integration calculation is forcibly stopped, but other settings remain unchanged.

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5.14 Other Functions

Page 84

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5.14 Other Functions

Page 85

e B C

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Chapter

Interfac

GP-I

RS-232

.1 Specifications

.1.1 GP-IB

IEEE-488.1 1987 IEEE-488.2 1987

NOTE

On the 9588, if the output queue becomes full, it is cleared and a query error is generated. This does not correspond to the clearing of the output queue and the outputting of a query error in the deadlock state as stipulated in IEEE

488.2. (A deadlock state occurs when both the input buffer and the output queue are full, and processing cannot continue normally.)

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6.1 Specifications

Page 86

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Interface functions provided

SH1 All source handshake functions AH1 All acceptor handshake functions

Basic t alk functions Serial poll function

Talk-only mode is provi ded. The talker cancellation function with MLA (My Listen Address) is provided.

Basic listener functions

Listen-only mode is not provided. The listener cancellation function with MTA (My Talk Address) is provided.

SR1 All service request functions

RL1 All remote/local functions

PP0 Parallel polling is not provided.

ASCII codes are used.

.1.2 RS-232C

■ Transfer system Start-stop synchronization

■ Baud rate 1200, 2400, 4800, 9600 bps

■ Data length 7 or 8 bits

■ Parity Even, odd or none

■ Stop bits 1 or 2 bits

■ XON/XOFF Can be transmitted and received.

(Set with the RS232c:HANDshake command)

DC1 All device clear functions DT1 All device trigger functions

C0 The controller function is not provided.

255 byte

Input buffe

An XOFF (13 H) code is transmitted when the input buffer is 3/4 full (255 bytes).

75 byte

Input buffe

An XON (11H) code is transmitted when the input buffer is 1/4 full (75 bytes).

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6.1 Specifications

Page 87

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■ Hardware handshake Can be transmitted and received. (Set with the RS232c:HANDshake command)

■ Execution confirmation After analyzing and executing one line of data

messages (data up to the terminator) from the controller, a

numeric data value (ASCII) is returned. (Set with the RS232c:ANSWer command)

Transmitted data 000 no error nnn error detected in item nnn of the received

program code

In the case of a query command, the transmission

is appended after the response message.

■ Electrical characteristics Input voltage levels +5 V to +15 V on

-15 V to -5 V off

Output voltage levels (load impedance 3 kΩ to 7 kΩ)

+5 V to +9 V on

-9 V to -5 V off

Connector pin assignment and function

Pin N

RS-232C CCITT Signal name

AA(GND) 101 Frame Ground BA (TXD) 103 Send Data BB (RXD) 104 Receive Data CA (RTS) 105 Request to Send CB (CTS) 106 Clear to Send AB (GND) 102 Signal Ground CF (DCD) 109 Data channel receive

carrier detect

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6.1 Specifications

Page 88

AA 1 B

5 6 A

7 C

8 CD 20

1 AA 2

B 6 7

F 20 CD

────────────────────────────────────────────────────

(1) Connect to the Controller

3167 Controlle

A B A B

B F

B B C C

A C

Example of RS-232C cable connecting

(2) Connect to the printer

There are two types of printer: ones with pin 2 of the RS-232C interface for "receive data" (BB), and ones with pin 3 for "receive data" (BB).

For a printer with pin 2 for "receive data", use a "straight" cable (with samenumbered pins connected). For a printer with pin 3 for "receive data", use a cable with pin connections as shown above.

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6.1 Specifications

Page 89

Rail

Guide rail

Rail

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.2 Installing and Removing the Interface Option

WARNIN

NOTE

To avoid electric shock accident, before removing or replacing an interface, power cord, and clamp sensor, confirm that the instrument is turned off and that the power cord are disconnected. The mounting screws must be firmly tightened or the input unit may not perform to specifications, or may even fail. To avoid the danger of electric shock, never operate the product with an 9588 GP-IB INTERFACE/9592 RS-232C INTERFACE. To use the product after removing an interface, install a blank panel over the opening of the removed module.

The space for fitting the 9588 GP-IB INTERFACE or the 9592 RS-232C INTERFACE in the rear panel of the 3167 is covered with a blanking plate. Follow these three steps to install the interface:

(1) Remove the fixing screws, and take off the blanking plate. (Be careful not to

lose the screws.)

(2) Insert the interface option into the exposed slot in the rear of the 3167 by

sliding its guide rails along the rails provided on the sides of the inside of the slot. (See the figure below)

(3) Push the interface option firmly into place, and fix with the screws removed in

step (1). Ensure that the fixing screws for the interface are fastened securely. Loose

screws can lead to added susceptibility to noise, and operational errors.

WARNIN

NOTE

3167

crews

To avoid the danger of electric shock, never operate the 3167 unit with

an input unit such as GP-IB or RS-232C interface removed.

If you should wish to use the unit after removing an input unit, fit a

blanking panel over the opening of the removed unit.

Ensure that the screws for the interface cable are fastened securely.

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6.2 Installing and Removing the Interface Option

Page 90

DATA OUT

HELP

LOCAL

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.3 Identification of Controls and Indicators

Interface status display

When 9588 GP-IB INTERFACE is fitted These indicators show the GP-IB control state:

RMT: Remote TLK: Talker When 9592 RS-232C INTERFACE is fitted These indicators show the RS-232C control state:

RMT: Remote TLK: Printer Mode (Pr.)

NOTE

Data out/help output key (

When using GP-IB in talk only mode or RS-232C in printer mode, measuring value or setting state can output with this key.

LOCAL key (LOCAL)

Press this key to release the remote state of the GP-IB or RS-232C interface and to resume the local state. However, the LOCAL key is disabled if the GP-IB controller has put the unit into the local lock out state. (Only when GP-IB is fitted.)

When communications are carried out by means of a controller, both the GPIB and RS-232C interfaces go into the remote mode, and key input is not accepted. To execute key input, release the remote state with the

)

key.

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6.3 Identification of Controls and Indicators

Page 91

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.4 Setting Interface

Refer to 5.10 "Setting Interface".

NOTE

・When connecting to a controller, set as follows: GP-IB any address RS-232C Control mode (Co.) ・When connecting to a printer, set as follows: GP-IB Talk only RS-232C Printer mode (Pr.)

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6.4 Setting Interface

Page 92

)

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.5 Introduction to the Interface

.5.1 Features

(1) All of the functions of the 3167 main unit, except for powering on, can be

controlled. (2) The unit can be reset. (3) In the hold state, single-shot measurement is possible. (4) IEEE 488.2-1987 standard (essential) commands can be used. (5) This unit can output manual, time interval and help output using the talk

only mode or printer mode.

.5.2 Messages

Data received or sent by the GP-IB interface is called a message. The

following are the message types:

Of these, program messages are those received by the unit from the controller,

while response messages are those sent from the unit to the controller.

(1) Program messages

Program messages can be divided into either command messages or query

messages. Command messages are orders for control of the unit, such as for

making settings or for reset or the like. Query messages are orders for

responses relating to results of operation, results of measurement, or the state

of device settings.

Message

Program message

Command message Query message

Response message

Execution confirmation messages (only RS-232C

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(2) Response messages

After a query message has been received, a response message is produced the moment that its syntax has been checked. It is also possible to change the message unit separator of response messages from the semicolon ";" to the comma "," when headers are off, using the command "TRANsmit:SEParator". Initially this separator is set to the semicolon ";".

A space is represented by "_" in this manual. Headers on "V_+101.2 E+0;A_+1.200 E-3"

Headers off "+101.2 E+0;+1.200 E-3"

↓

Headers off "+101.2 E+0,+1.200 E-3"

(3) Execution confirmation message

Execution confirmation message is the numeric data (ASCII) created by analyzing and executing one line of data (data up to the terminator) from the controller. This numeric data is returned to the controller. The controller and this unit are synchronized by means of this data. (Refer to 6.1.2 "RS-232C".)

.5.3 Command Syntax

The names of commands for the 3167 are as far as possible mnemonic. Furthermore, all commands have a long form, and an abbreviated short form. In command references in this manual, the short form is written in upper case letters, and then this is continued in lower case letters so as to constitute the long form. Either of these forms will be accepted during operation, but intermediate forms will not be accepted. Further, during operation both lower case letters and upper case letters will be accepted without distinction.

Example For "DISPLAY", either "DISPlay" or "DISP" will be accepted. However, any

one of "DISPLA", "DISPL", or "DIS" is wrong and will generate an error. Response messages generated by the 3167 are in long form and in upper case

letters.

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.5.4 Headers

Whether or not headers are prefixed to response messages is set by the

"HEADer" command. It is essential to prefix headers to program messages.

(1) Command program headers

There are three types of command: simple commands, compound commands,

and standard commands.

Simple command header This header is a sequence of letters and digits.

HEADer Compound command header

This header is made up from a plurality of simple command type headers marked off by colons.

VOLTage:RANGe Standard command header

This header begins with an asterisk, and continues with a standard command stipulated by IEEE 488.2.

*RST

(2) Query program headers

These are for commands used for interrogating the unit about the results of

operations, about measured values, or about the current states of settings for

the unit. As shown by the following examples, they can be recognized as

queries by a question mark appearing after the program header. The structure

of the header is identical to that of a command program header, with "?"

always being affixed to the last command. There are queries possible in each

of the three previously described types of command form.

SCALe? SCALe:PT?

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6.5 Introduction to the Interface

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)

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.5.5 Message Terminators

The 3167 recognizes, (1) linefeed character (0AH) (GP-IB, RS-232C) , (2) EOI signal (GP-IB only), (3) LF with EOI (GP-IB only), as message terminators.

To terminate a response message, the 3167 always provides the appropriate EOI signal, and also sends a terminating character sequence. By the use of the "TRANsmit:TERMinator" command either of the following can be selected as response message terminator sequence:

GP-IB RS-232C

(1) LF with EOI (linefeed only) LF

The initial selection is (1). A detailed explanation of the "TRANsmit:TERMinator" command is given in Section 6.6.2, "Commands specific to the 3167."

.5.6 Separators

(1) Message unit separator

A semicolon ";" is used as a message unit separator when it is desired to set out several messages on a single line.

Example "

RST ; :SCALe:CT_4 ; :AVERaging_64"

(2) Header separator

In a message which has a header and data, a space (represented by "_" in the examples) is used as the header separator to separate the header from the data.

(2)

CR + LF with EOI

(carriage return plus linefeed

CR + LF

Example ":VOLTage:AUTO_ON"

(3) Data separator

If a message has several data items, commas are required as data separators for separating these data items from one another.

Example ": MEASure?_V , A,W,VA"

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.5.7 Data Formats

The 3167 uses character string data and decimal numeric data, and the type

used varies according to the command in question.

(1) Character data

Character string data must always begin with an alphabetic character, and

the following characters can be either alphabetic characters or numerals.

Although in character data either upper case letters or lower case letters are

accepted, response messages output by the 3167 are always in upper case

letters.

Example ":DISPlay_ V ,A,W"

(2) 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.

Further, if the accuracy of a numerical value exceeds the range with which the

3167 can deal, it is rounded off. (5 and above is rounded up; 4 and below is

rounded down).

NR1 format - integer data.

Examples +12, -23, 34

NR2 format - fixed point numbers.

Examples +1.23, -23.45, 3.456

NR3 format - floating point numbers.

Examples +1.E-2, -2.3 E+4

The term "NRf format" includes all these three formats.

When the 3167 is receiving it accepts NRf format, but when it is sending

response messages it utilizes whichever one of the formats NR1 to NR3 is

indicated in the particular command. All of the following examples set the

voltage range to 150 V:

":VOLTage:RANGe_150"

":VOLTage:RANGe_150.2"

":VOLTage:RANGe_1.495E2"

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.5.8 Abbreviation of Compound Commands

When several compound commands have a common head portion, for example :SCAL:PT and :SCAL:CT, then, when and only when writing them directly following on from one another, this common portion (:SCAL: in this example) can be omitted from each command except for the first one. This common portion is called "the current path", by analogy with the general concept of the current directory in the directory structure of UNIX or MSDOS, and until it is cleared the analysis of following commands is performed by deeming them to be preceded by the current path which has been curtailed in the interests of brevity. This manner of using the current path is shown in the following example:

Normal expression

":SCALe:CT_2;:SCALe:PT_10;:SCALe:CT?"

Abbreviated expression:

" :SCALe:

The current path is cleared when the power is turned on, when a system reset is performed by key input, when a colon ":" appears at the start of a command, and when a message terminator is detected.

Messages of standard command form can be executed without relation to the current path. Further, they have no effect upon the current path. It is not necessary to prefix a colon ":" at the start of headers of simple commands and compound commands. However, in order to prevent confusion with abbreviated forms and mistakes in operation, it is recommended practice always to prefix ":" to headers.

With the 3167, there are nine possible current paths: ":VOLTage:", ":CURRent:", ":SCALe:", ":TRANsmit:", ":FREQuency:", ":INTEGrate:", ":DATAout:", ":RS232c:" and ":STATus:"

CT_2;PT_10;CT?"

This becomes the current path, and can be curtailed from the following commands.

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.5.9 Output Queue

Response messages accumulate in the output queue and are read out as data

and cleared by the controller. The output queue is also cleared in the

following circumstances:

・When a device clear is issued.

・When the power is turned off and turned on again.

・When the unit is reset by a key press.

・When a query error is generated.

The 3167 has an output queue of 1000 bytes capacity. If the response

messages overflow this limit of 1000 bytes, a query error is generated, and the

output queue is cleared. Further, if a new message is received while the

output queue still contains data, the output queue is cleared, and a query

error is generated.

.5.10 Input Buffer

The 3167 has an input buffer of 300 bytes capacity. Messages which are

received are put into this buffer and executed in order. If the data

accumulated in this buffer exceeds 300 bytes the buffer becomes full, and until

a space again becomes available in the buffer the GP-IB interface bus goes

into the waiting state.

In case of RS-232C interface, if the buffer becomes full, its data is thrown

away untill the analysis of input buffer is completed. (When XON, XOFF

control or hardware handshake is invalid.)

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.5.11 Status Model

In its implementation of the serial polling function using service requests, the 3167 employs the status model specified by IEEE 488.2. The term "event" refers to any phenomenon which generates a service request.

Generation of service requests

Status byte register (STB

Generation of service

request (SRQ)

Represents standard event registe

Data is present in the output queue

Bits represent corresponding event registers

bit 7

bit 6

bit 5

bit 4 bit 3 bit 2 bit 1 bit 0

SRQ MSS

Logical sum

bit 7 bit 6

ESB MAV ESB1 ESB0

・・・・・・・・・・・・・・・・・

bit 5

& & &

bit 4 bit 3 bit 2 bit 1 bit 0

× ESB MAV ESB1 ESB0

Service request enable register (SRER

The status byte register holds information relating to the event registers and the output queue. It is further possible to use the service request enable register as a mask to select the items required. If any of the bits selected by the mask becomes 1, bit 6 (the master summary status or MSS bit) is also set to 1, an SRQ message is generated, and this generates a service request.

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.5.12 Status Byte Register

(1) Status byte register (STB)

The status byte register is an 8-bit register whose contents are output from

the 3167 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

Simultaneously with this the SRQ bit is set to 1, and a service request is

generated.

Status byte register (STB

bit 7

bit 6

bit 5

bit 4 bit 3 bit 2 bit 1 bit 0

SRQ

Unuse

Logical sum

bit 7 bit 6

Unuse

MSS

× ESB MAV Unuse

ESB MAV Unuse

・・・・・・・・・・・・・・・・・

bit 5

& & &

bit 4 bit 3 bit 2 bit 1 bit 0

Unuse

ESB1 ESB0

Service request enable register (SRER

The SRQ bit is synchronized with service requests, and is read out and

simultaneously cleared when serial polling is being performed. Although the

MSS bit is only read out on an "*STB?" query, on a "*CLS" command for

example it is not cleared until the event is cleared.

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