GW Instek GPM-8310 User Manual

Digital Power Meter

GPM-8310

USER MANUAL

Rev. A

ISO-9001 CERTIFIED MANUFACTURER

This manual contains proprietary information, which is protected by copyright. All rights are reserved. No part of this manual may be photocopied, reproduced or translated to another language without prior written consent of Good Will company.

The information in this manual was correct at the time of printing. However, Good Will continues to improve products and reserves the rights to change specification, equipment, and maintenance procedures at any time without notice.

Good Will Instrument Co., Ltd.

No. 7-1, Jhongsing Rd., Tucheng Dist., New Taipei City 236, Taiwan.

TABLE OF CONTENTS
Table of Contents
SAFETY INSTRUCTIONS ..................................................	5
GETTING STARTED ........................................................	10
Characteristics ..........................................	11
Appearance ...............................................	16
Set Up.......................................................	25
BASIC SETTING .............................................................	28
Setting up measurement range .................	29
Setting up measurement status ................	33
Setting up System status ..........................	72
MEASUREMENT AND OTHER FUNCTIONS ....................	81
Measurement function ..............................	82
Other functions ........................................	88
Integration measurement function ............	91
Graph measurement function .................	103
DIGITAL I/O / DA4 .......................................................	121
Digital I/O / DA4 Overview .....................	122
External Remote Control .........................	124
DA4 Output Function ..............................	125
User / 4094 Mode ...................................	130
REMOTE CONTROL ......................................................	136
Configure Remote Control Interface ........	137
Configure EOL Character ........................	144
Return to Local Control ...........................	144
COMMAND OVERVIEW ................................................	145
Command Syntax ....................................	145
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GPM-8310 User Manual
Command List ........................................	149
APPENDIX ....................................................................	228
Specifications .........................................	229
Status system .........................................	239
Dimensions ............................................	243
Declaration of Conformity .......................	244
Power measurement ...............................	245
Introduction to IEC-62301 .......................	247
EUP Directive Lot6 specifications ...........	248
Connection Guide ...................................	249

4

SAFETY INSTRUCTIONS

SAFETY INSTRUCTIONS

This chapter contains important safety instructions that you must follow during operation and storage. Read the following before any operation to ensure your safety and to keep the instrument in the best possible condition.

Safety Symbols

These safety symbols may appear in this manual or on the instrument.

Warning: Identifies conditions or practices that

	WARNING	could result in injury or loss of life.
	CAUTION	Caution: Identifies conditions or practices that
		could result in damage to the GPM-8310
		or to other properties.
		DANGER High Voltage
		Attention Refer to the Manual
		Protective Conductor Terminal
		Earth (ground) Terminal

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GPM-8310 User Manual

Do not dispose electronic equipment as unsorted municipal waste. Please use a separate collection facility or contact the supplier from which this instrument was purchased.

6

SAFETY INSTRUCTIONS

Safety Guidelines

General Guideline

CAUTION

Make sure that the voltage input level does not exceed AC600V.

Make sure the current input level does not exceed 20A.

Do not place any heavy object on the instrument.

Avoid severe impact or rough handling that can lead to damaging the instrument.

Do not discharge static electricity to the instrument.

Use only mating connectors, not bare wires, for the terminals.

Do not block or obstruct the cooling fan vent opening.

Do not perform measurement at the source of a low-voltage installation or at building installations (Note below).

Do not disassemble the instrument unless you are qualified as service personnel.

Make sure that the COM terminal to earth is limited to 600Vpk.

Remove all test leads before disconnecting the mains power cord from the socket.

If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

The device should be placed in a place where the plug connected to it can be removed easily.

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GPM-8310 User Manual

(Note) EN 61010-1:2010 specifies the measurement categories and their requirements as follows. The GPM-8310 falls under category II 600V.

Measurement category IV is for measurement performed at the source of low-voltage installation.

Measurement category III is for measurement performed in the building installation.

Measurement category II is for measurement performed on the circuits directly connected to the low voltage installation.

Power Supply

WARNING

AC Input voltage: 100-240 VAC 50/60Hz

The power supply voltage should not fluctuate more than 10%.

Connect the protective grounding conductor of the AC power cord to an earth ground, to avoid electrical shock.

If grounding practice is not well implemented, a certain amounts of noises will be generated when connecting to GPM-001, the handy measurement accessory for GPM-8310.

Cleaning the

Instrument

Disconnect the power cord before cleaning.

Use a soft cloth dampened in a solution of mild detergent and water. Do not spray any liquid.

Do not use chemicals containing harsh material such as benzene, toluene, xylene, and acetone.

Operation		Location: Indoor, no direct sunlight, dust free,
Environment		almost non-conductive pollution (Note below)
	Temperature: 0°C to 40°C
	Humidity: < 30°C: < 80%RH(non-condensing);
		30°C~40°C:<70%RH(non-condensing);
		>40°C: <50%RH (non-condensing)
		Altitude: <2000m
	Overvoltage category: OVC II

8

SAFETY INSTRUCTIONS

(Note) EN 61010-1:2010 specifies the pollution degrees and their requirements as follows. The GPM-8310 falls under degree 2.

Pollution refers to “addition of foreign matter, solid, liquid, or gaseous (ionized gases), that may produce a reduction of dielectric strength or surface resistivity”.

Pollution degree 1: No pollution or only dry, non-conductive pollution occurs. The pollution has no influence.

Pollution degree 2: Normally only non-conductive pollution occurs. Occasionally, however, a temporary conductivity caused by condensation must be expected.

Pollution degree 3: Conductive pollution occurs, or dry, non-

		conductive pollution occurs which becomes conductive due to
		condensation which is expected. In such conditions, equipment
		is normally protected against exposure to direct sunlight,
		precipitation, and full wind pressure, but neither temperature
		nor humidity is controlled.
Storage		Location: Indoor
environment		Temperature: -40°C to 70°C
		Humidity: <90%RH(non-condensing)
Disposal	Do not dispose this instrument as unsorted
	municipal waste. Please use a separate collection

facility or contact the supplier from which this instrument was purchased. Please make sure discarded electrical waste is properly recycled to reduce environmental impact.

9

GPM-8310 User Manual

GETTING STARTED
This chapter describes the GPM-8310 in a nutshell,
including accessories, package contents, its main
features and front / rear panel introduction.
Characteristics ................................................................	11
Accessories ..............................................................................................	14
Package Contents ....................................................................................	15
Appearance.....................................................................	16
Front Panel ..............................................................................................	16
Main Display Overview ...........................................................................	19
Rear Panel ................................................................................................	22
Set Up ............................................................................	25
Tilting the Stand ......................................................................................	25
Power Up .................................................................................................	26
Connect the wires to the GPM-8310.......................................................	27

10

GETTING STARTED

Characteristics

The GPM-8310 is a high-precision, programmable power meter for using in standby measuring the device with low power such as switching power supplies, transformers, power supplies, adapter and other devices. It equips with a color TFT-LCD screen and also multiple graph displays which are very convenient for reading the measurement results. The GPM-8310 has become a reliable power measurement instruments because of its simple operation, excellent performance, user-friendly graph displays and automatic measurement interface.

Operation	Press the buttons on the front panel to easily
	turn on the GPM-8310 measurement function.
	All settings and measurements results are
	displayed on the 5-inches TFT-LCD screen panel
	for easy use of each function.
	Standard display mode: 2 main measurement
	results and 8 secondary measurement results are
	displayed in this screen.
	Simple display mode: 4 major measurement
	results are displayed in this screen.

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	GPM-8310 User Manual
Performance	6 selectable voltage ranges available from 15V to
	600V with 0.1% of reading + 0.05% of range.
	12 selectable current ranges available from 5mA
	to 20A with 0.1% of reading + 0.05% of range.
	It can even measure the voltage of abnormal
	wave of CF 3. The half-range CF is up to 6 or 6A.
	It can even measure the current of abnormal
	wave of CF 3. The half-range CF is up to 6 or 6A.
	Total harmonic distortion measurement.
	50-orders harmonic test and analysis function.
	Graph display for measurement results
	including harmonic orders distribution.
	Plug-in USB disk data store function including
	log and screenshot.
	Auto range function for integration measurement.

12

GETTING STARTED

Features	Full five-digit measurement.
	Voltage measurement range: 15V ~ 600V or
	automatic switching
	Current measurement range: 5mA ~ 20A or
	automatic switching
	Maximum accuracy of 0.1% of reading + 0.05%
	of range
	2 main measurement readings and 8 minor
	measurement readings are displayed in the
	screen of standard display mode.
	4 main measurement readings are displayed in
	the screen of simple display mode.
	Added stand-alone display of total harmonic
	distortion measurement function (50 steps)
	Test bandwidth of voltage and current: DC ~
	100kHz.
	Selectable boot settings (Previous / Default)
	Waveform display up to 10kHz along with
	Harmonic bar and list table
Interface	Standard interface: USB / RS232 / LAN / GPIB
	Optional interface: Digital IO / DA4
Application	It can be applied to production test such as
	power supplies, transformers, motors, electrical
	equipment and other equipment with low standby
	power.
	It can be applied to power measurement
	conforms to IEC 62301
	It can be applied to assess the power
	consumption of product design.

13

			GPM-8310 User Manual
Accessories
	Standard Accessories	Part number	Description
		82PM-83100E01	User Manual CD
		82GW1SAFE0M01	Safety Instruction Sheet
		Region dependent	Power Cord
		GTL-209	Test leads: 1x red, 1x black
		GTL-212	Test leads: 1x yellow, 1x blue
	Optional Accessories	Part number	Description
		GPM-001	Test Fixture
		GTL-234	RS232C cable
		GTL-246	USB cable
		GTL-248	GPIB cable
		GCP-300	Current Probe
		GRA-422	Rack Adapter Panel (19”, 2U)
	Option	Name	Description
		Opt.01	DA4 (Factory installed)

14

GETTING STARTED

Package Contents

Check the contents before using the instrument.

Opening the box

Contents (single unit)

Main unit

Test leads (red x1, black x1, yellow x1, blue x1)

Power cord x1 (region dependent)

User manual CD

Safety instruction sheet

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GPM-8310 User Manual

Appearance

Front Panel

Hardcopy Key	LCD Display	Function Keys
	GPM - 8310	Digital Power Meter
Hardcopy		V-Range	I-Range	MAX Hold

Mode	Setup	Hold
	INTEGRATOR
Start	Stop	Reset
Key Lock	Trigger	ESC
Local		: Long Push

POWER
				Enter
Power	USB Host	Soft	Enter	Arrow	Trigger	ESC
key	Port	keys	Key	Keys	Key	Key

Power Key	Turns On or Off the main
	power. For the power up sequence,
	see page 26.

USB Host Port	Connects with USB flash drive for
	data storage or screenshot.
Hardcopy Key	Captures the current screenshot or
	saves the data log for reading. For
	details, refer to page 67.

16

		GETTING STARTED
Function Keys		V-Range key, up/down arrow keys
		and Enter key can be used together
		to select a voltage range or auto
		range measurement mode. Also,
		press and hold the V-Range key to
		toggle between manual and auto
		range setting. See page 29.
		I-Range key, up/down arrow keys
		and Enter key can be used together
		to select a current range or auto
		range measurement mode. Also,
		press and hold the I-Range key to
		toggle between manual and auto
		range setting. See page 29.
		Press this button to display the
		maximum measurement reading.
		See page 89.
		Press this key to select measure
		mode (DC/AC/AC+DC/V-MEAN).
		See page 90.
		Press this key to enter the
		measurement settings menu. See
		page 33.
		Press this key to switch window and
		stop refreshing. See page 89.
		Use the left and right
		arrow keys to select
		Integrator mode, and
		press Enter button to
		enter the time integrator
		function. See page 91.
		17

		GPM-8310 User Manual
		Press this key to toggle to key lock. In
		Remote control mode, press this button
		to switch to local mode. See page 90.
Enter Key		This button is used to enter the menu,
		confirm the settings and switch
		between the standard display mode
		and simple display mode (no function
		table and display icon). See page 89.
Trigger key		Activates the Trigger function. See
		page 89.
ESC Key		Press this button to cancel the
		current setting. The cursor returns to
		the default position or return to the
		previous menu according to the
		situation. See page 90.
Arrow Keys		This four arrow keys are
		used to edit the parameters,
		browse the menu system and
		select the parameter range.
Soft Keys		The 5 soft keys have varied functions
		from the OSD (On-Screen Display)
		options, individually, per different
		settings. In addition, from the main
		display, the 5 soft keys act like
		shortcuts leading to the 5 secondary
		menus, for which refer to the page 21.
		The mapping sequence is from top to
		bottom of soft keys corresponding to
		from left to right of secondary menus.
		For instance, the top soft key enables
		shortcut to the far left secondary
		menu (Enlarge) directly.
18

GETTING STARTED

Main Display Overview

Voltage Range Mode

CF RemoteMax.

Hold

Sync External

Current Range

Update Rate

VT

CT SF

Average

Source

Display Hold

Peak Voltage

Line Filter

Peak Current

Harmonic

Main

Calculation

Measurement

Measure

Display

Storage

Key Lock

Minor

Measurement

Frequency

Display

Filter

Remote Error

Secondary Menus

Item

Status icon

Description

Voltage Range

V-Range 15V

Voltage measurement range.

Example here range is 15V.

V-Auto means that Voltage Auto

Range is turned on.

Current Range

I-Range 5A

Current measurement range.

Example here range is 5A.

I-Auto means that Current Auto

Range is turned on.

Mode

AC+DC

Measurement mode

(AC, DC, AC+DC, V-MEAN)

Date Update

Update 0.1s

Data update rate

Rate

(0.1/0.25/0.5/1/2/5/10/20/Auto)

Crest Factor

CF3

Crest Factor (3/6/6A)

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			GPM-8310 User Manual
	VT Ratio State	VT	External voltage magnification
			(On/Off)
	CT Ratio State	CT	External current magnification
			(On/Off)
	Power Ratio	SF	External power magnification
	State		(On/Off)
	Remote	RMT	Remote control mode (On/Off)
	Line Filter	L.F	Voltage and current filters (On/Off)
	Frequency Filter	F.F	Frequency filters (On/Off)
	Maximum Hold	MAX Hold	Retain and display the maximum
			measurement reading.
	Average	AVG-8	Average number of sampling
			(8/16/32/64)
	Sync Source	SYNC.V	Synchronization source (V/I/Off)
	Keyboard Lock	Key Lock	Lock Key button
	Harmonic	HRM.I	Harmonic calculation method
	Calculation		(IEC/CSA/Off)
	Measure Storage	STORE	Measured date storage (On/Off)
	External Input	EXT1	External signal input function
			(Ext1/Ext2/Off)
	Display Hold	Hold	Retain and display the current
			measurement reading.
	Peak Voltage	P.V	The voltage exceeds the
			measurement range
	Peak Current	P.I	The current exceeds the
			measurement range
	Remote Error	Error-XXX	An error occurs in remote
			command
20

				GETTING STARTED
	Standard Display	Display the measurement result of 2 major and 8
	Mode	minor measurement parameters
	Simple Display	Display the measurement result of 4 major
	Mode	measurement parameters
	Secondary menus Display secondary function menu
			Enlarge	This function key is used to
				switch display of measurement
				result from 2 major plus 8 minor
				to 4 major ones.
			Integrator	This function key is used to set up
				integrator measurement
				parameters and execute integrator
				measurement function.
			Parameter	This function key is used set up
				measurement parameters.
			System	This function key is used to enter
				the system setting and system
				configuration screens.
			Graph	This function key is used to set up
				graph measurement settings and
				execute measurement in the
				intuitive graph displays.

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GPM-8310 User Manual

Rear Panel

Current	External	Voltage	RS-232	LAN	USB Device
Input	Input 1/2	Input	Connector	Port	Port

CURRENT	I	I	EXT1	V	VOLTAGE
					RS232	LAN
			10V MAX
			EXT2	V

20A MAX GPIB

2V MAX	600V MAX
CAT II 600V
	Digital IO / DA4

TO AVOID SHOCK, WARNING REMOVE INPUTS

BEFORE OPENING.

AC 100 240V 50 / 60Hz 30VA MAX

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<![endif]>LABEL .NO.SER

GPIB	Digital IO / DA4	GND	Power Cord
Connector	Connector	Terminal	Socket

Power Cord	Connects the power cord.
Socket	AC 100~240V ±10%,
	50/60Hz
RS232 Connector	Accepts an RS-232C cable for
	remote control; DB-9 male
	connector. For remote
	control details, see page 138.
GPIB Connector	Accepts an optional GPIB
	card for remote control. For
	GPIB details, see page 140.
USB Device Port	Accepts a USB device cable
	for remote control; Type B,
	female connector. For remote
	control details, see page 137.
22

		GETTING STARTED
LAN Port		Accepts a LAN for remote
		control. For remote control
		details, see page 142.
Digital IO / DA4		Accepts a digital I/O cable
Connector		for signal output; SCSI 26 pin,
		female connector. For digital
		I/O details, see page 122
GND Terminal		Connects the GND (ground)
		terminal to the earth ground.

Voltage/Current input terminal

CURRENT I	I	EXT1	V	VOLTAGE
		10V MAX
		EXT2	V
	20A MAX	2V MAX		600V MAX

CAT II 600V

Voltage/Current input terminals is used to connect the main measurement signals.

External Input 1/2	Connects output signal to the EXT1
	terminal which receives up to 10V, or
	the EXT2 terminal that receives at the
	maximum of 2V. See page 59 for setting.

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GPM-8310 User Manual

Do not use damaged device. Before using the

		equipment, check its housing first to sure there is
	Warning	no any cracks. Do not operate this device in an
		environment containing explosive gases, steam or
		dust.
		The maximum measurable current and voltage are
		600 V and 20A for voltage and current terminals of
		the rear panel of the GPM-8310. Do not input
		exceeded voltage and current, otherwise it will burn
		the device.
		The maximum input voltage are 10 V and 2V for
		EXT1 and EX2 terminals of the rear panel of the
		GPM-8310. Do not input exceeded voltage,
		otherwise it will burn the device.
		Always use the supplied cable for connection.
		Before connecting the device, observe all the safety
		symbols marked on the device.
		Turn off the power to the device and the application
		system before connecting I/O terminals.
		Do not install replacement parts on the device or
		perform any unauthorized modifications.
		Do not use this device if the removable cover is
		removed or loosened.
		Do not connect any cables and terminals before
		performing self-test.
		Use only the power adapter supplied by the
		manufacturer to avoid accidental injury.
		Do not use this device for life support systems or
		any other equipment that has safety requirements.

24

GETTING STARTED

Set Up

Tilting the Stand

Pull out the handle sideways and rotate it clockwise for the several applications listed below.

Horizontal

Tilt

Place the unit horizontally.

Rotate the handle for tilt stand.

Vertical

Place the handle vertically for hand carry.

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GPM-8310 User Manual

Power Up

Steps

Note

1. Ensure the AC voltage is 100~ 240V.

2. Connect the power cord to the AC voltage input.

Make sure the ground connector on the power cord is connected to a safety ground. This will influence the measurement accuracy.

3.Push to turn on the main power switch on the front panel.

4.The display turns on and shows the last function that was used before the power was reset.

26

GETTING STARTED

Connect the wires to the GPM-8310

Two separate wires is used to connect the Background GPM-8310, so voltage and current

measurement are isolated and don’t interfere with each other.

Connection diagram

CURRENT I	I	EXT1	V	VOLTAGE
		10V MAX
		EXT2	V
	20A MAX	2V MAX		600V MAX

CAT II 600V

Description	V +	The positive voltage input (+), 600V for
		input on the rear panel.
	V -	The negative voltage input (-), 600V for
		input on the rear panel.
	I +	The positive current input (+), 20A for
		input on the rear panel.
	I -	The negative current input (-), 20A for
		input on the rear panel.
	EXT1	The external 1 voltage input, 10V for input
		on the rear panel.
	EXT2	The external 2 voltage input, 2V for input
		on the rear panel.

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GPM-8310 User Manual

BASIC SETTING
Setting up measurement range ........................................	29
Auto Range ..............................................................................................	31
Setting up measurement status .......................................	33
Setting up synchronization source .........................................................	33
Setting up line filter .................................................................................	34
Setting up frequency filter .......................................................................	35
Setting up crest factor .............................................................................	36
Setting up auto-zero function .................................................................	37
Setting up method of calculating harmonics .........................................	38
Setting up data update rate.....................................................................	40
Setting up measure storage ....................................................................	42
Setting up average function ....................................................................	44
Setting up the voltage and current skipping configuration ...................	46
Setting up the skipping configuration for external .................................	50
Setting up the VT ratio state ...................................................................	53
Setting up the CT ratio state ...................................................................	55
Setting up the power ratio state..............................................................	57
Setting up the external sensor input terminal ........................................	59
Saving and loading the setup parameters ..............................................	61
Setting up the D/A output configuration ...............................................	63
Setting up the hardcopy and log configuration ......................................	67
Setting up the MATH configuration .......................................................	69
Setting up System status .................................................	72
System information screen .....................................................................	72
System configuration screen...................................................................	73
Setting up power on status .....................................................................	75
Setting up brightness ..............................................................................	76
Setting up key sound ...............................................................................	77
Setting up remote interface.....................................................................	78
Setting up SCPI identity ..........................................................................	80

28

BASIC SETTING

Setting up measurement range

To get the accurate measurement results, you should set an appropriate measurement range before you perform measurement task.

Set voltage range 1. Press V-Range button. The V-

Range field turns to bluish.

2.Use up and down arrow keys to select the desired range.

3.Press Enter button to confirm your selection.

Available range Crest Factor	AUTO, 15V, 30V, 60V, 150V, 300V, 600V
is 3:
Crest Factor	AUTO, 7.5V, 15V, 30V, 75V, 150V, 300V
is 6/6A:

Set current range 1. Press I-Range button. The I-Range field turns to bluish.

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GPM-8310 User Manual

2.Use up and down arrow keys to select the desired range.

3. Press Enter button to confirm your selection.

Available range Crest Factor	AUTO, 5mA, 10mA, 20mA, 50mA,
is 3:	100mA, 200mA, 0.5A, 1A, 2A, 5A, 10A,
	20A
Crest Factor	AUTO, 2.5mA, 5mA, 10mA, 25mA,
is 6/6A:	50mA, 100mA, 250mA, 0.5A, 1A, 2.5A,
	5A, 10A

When it is under the manual setting ranging from

	Note	5mA to 200mA, the manual range adjusts to auto
		range automatically if input current exceeds 700mA.
	Note	When the measurement range is set manually, if the
		range status icon lights in green means that the
		measured value meets the setting range. On the
		contrary, If the range status icon lights in red means
		that the measured value doesn’t meet the best setting
		range. In this case. It is better to switch to other range
		to get more accurate measurement results.
	Note	The P.I status icon lights in red when the current
		measurement circuit detects that the measured value
		exceeds setting range by 3 folds (CF is set to 3) or 6
		folds (CF is set to 6/6A).
	30