Graphtec GL220 Operating Manual

220

USER’S MANUAL

MANUAL NO. GL220-UM-151

Introduction

Introduction

Thank you for purchasing the GL220 midi LOGGER.

Please read this manual thoroughly before attempting to use your new product to ensure that you use it correctly and to its full potential.

Notes on Use

Be sure to read all of the following notes before attempting to use the GL220 midi LOGGER.

1.Note on the CE Marking

The GL220A complies with the EN61326 (Class A) standard based on the EMC directive (89/336/EEC). It also conforms to the EN61010-1 standard based on the LV directive (72/23/EEC)

Although the GL220 complies with the above-mentioned standards, be sure to use it correctly in accordance with the instructions and notes provided in its User’s Manual.

Moreover, use of the GL220 by incorrect procedures may result in damage to the GL220 or may invalidate its safeguards. Please confirm all of its notes regarding use and other related information to ensure correct use.

2.Warning

This is a Class A product according to the EMC directive. In a domestic environment, this product may cause radio interference or may be affected by radio interference to the extent that proper measurement cannot be performed.

3.Notes for Safe Operation

(1)Be sure to use the Graphtec-supplied AC adapter. In environments where there is a lot of noise or where the power supply is unstable, we recommend that you ground the GL220.

(2)When a high-voltage signal cable has been connected to the main unit’s analog signal input terminal, avoid touching the leads of the input terminal’s signal cable to prevent electrical shock due to high voltage.

(3)Ensure that the GL220’s power source is positioned so that it can easily be disconnected.

4.Notes on Functions and Performance

(1)Be sure to connect the main unit to an AC or DC power supply that conforms to the rated range. Connection to a non-rated power supply may cause the main unit to overheat and break down.

(2)Do not block the vent on the main unit.

Continued operation with the vent blocked may cause the main unit to overheat and break down.

(3)To avoid malfunctions and other damage, avoid using the GL220 in the following locations.

•Places exposed to high temperature and/or high humidity, such as in direct sunlight or near heating equipment.

(Allowable temperature range: 0 to 45°C (0 to 40°C when a battery pack is mounted), Allowable humidity range: 5 to 85%R.H.)

•Locations subject to excessive salt spray or heavy fumes from corrosive gas or solvents.

•Excessively dusty locations.

•Locations subject to strong vibrations or shock.

•Locations subject to surge voltages and/or electromagnetic interference.

(4)If the main unit becomes soiled, wipe it off using a soft, dry cloth. Use of organic solvents (such as thinner or benzene) causes deterioration and discoloration of the outer casing.

(5)Do not use the GL220 in the vicinity of other devices which are susceptible to electromagnetic interference.

(6)Measured results may not conform to the stated specifications if the GL220 is used in an environment which is subject to strong electromagnetic interference.

I

Introduction

(7)Insofar as possible, position the GL220 input signal cables away from any other cables which are likely to be affected by electromagnetic interference.

(8)For stabilized measurement, allow the GL220 to warm up for at least 30 minutes after turning it on.

About Registered Trademarks

•Microsoft and Windows are registered trademarks or trademarks of Microsoft Corporation in the U.S. and elsewhere.

•Other company names and product names included in this manual are registered trademarks or trademarks of their respective companies.

II

To Ensure Safe and Correct Use

To Ensure Safe and Correct Use

●To ensure safe and correct use of the GL220, read this Manual thoroughly before use. ●After having read this Manual, keep it in a handy location for quick reference as needed. ●Do not permit small children to touch the GL220.

●The following describes important points for safe operation. Please be sure to observe them strictly.

Conventions Used in This Manual

To promote safe and accurate use of the GL220 as well as to prevent human injury and property damage,safety precautions provided in this manual are ranked into the five categories described below. Be sure you understand the difference between each of the categories.

DANGER

This category provides information that, if ignored, is highly likely to cause fatal or serious injury to the operator.

WARNING

This category provides information that, if ignored, is likely to cause fatal or serious injury to the operator.

CAUTION

This category provides information that, if ignored, could cause physical damage to the GL220.

			HIGH	This category provides information that, if ignored, is likely
				to cause burns or other injury to the operator due to contact
			TEMPERATURE
				with high temperature.
			ELECTRICAL	This category provides information that, if ignored, is likely to
			SHOCK	expose the operator to electrical shock.

Description of Safety Symbols

The symbol indicates information that requires careful attention (which includes warnings). The point requiring attention is described by an illustration or text within or next to the symbol.

The symbol indicates action that is prohibited. Such prohibited action is described by an illustration or text within or next to the symbol.

The symbol indicates action that must be performed. Such imperative action is described by an illustration or text within or next to the symbol.

i

Safety Precautions

Safety Precautions

WARNING

Be sure to securely connect the GL220’s power cord.

●After checking that the Power switch is turned off, connect the power cord’s female plug to the GL220 and then connect its male plug into the electrical socket.

●Use of the GL220 without the power cord securely plugged into the electrical socket may result in electrical shock due to current leakage.

●Before running the GL220 using a DC power supply, be sure to ground the protective ground terminal ( ) to avoid electrical shock and fire hazards. For grounding, use a ground wire with a diameter of at least 0.75 mm2. When using the GL220 in an environment where grounding is not possible, ensure that the voltage to be measured is no greater

than 50 V (DC or rms).

Securely connect the power cord Make sure that the socket has a good protective ground

If the GL220 generates smoke, is too hot, emits a strange odor, or otherwise functions abnormally, turn off its power and unplug its power cord from the electrical socket.

●Use of the GL220 in such status may result in a fire hazard or electrical shock.

●After checking that smoke is no longer being generated, contact your sales representative or nearest Graphtec vendor to request repair.

●Never try to perform repair yourself. Repair work by inexperienced personnel is

extremely dangerous.

Amateur repairprohibited

Before turning on the GL220, ensure that the electric socket’s supply voltage conforms to the GL220’s power rating.

● Use of a different supply voltage may cause damage to the GL220 or a fire hazard due

to electrical shock or current leakage.

Use of a differentsupply voltageprohibited

Never disassemble or remodel the GL220.

●Such action may cause a fire hazard due to electric shock or current leakage.

●Contact with a high-voltage component inside the GL220 may cause electric shock.

●If repair is required, contact your sales representative or nearest

Graphtec vendor.

No disassembly

Avoid using the GL220 in extremely dusty or humid places.

●Such use may cause a fire hazard due to electrical shock or current leakage.

Use prohibited	Watch out for
	electrical shock

Avoid using the GL220 in places where it may be exposed to water such as bathrooms, locations exposed to wind and rain, and so on.

Avoid water	Watch out
	electrical shock

Prevent dust or metallic matter from adhering to the power supply connector.

●Adhesion of foreign matter may cause a fire hazard due to electrical shock or current leakage.

Never use a damaged power cord.

●Use of a damaged cord may result in a fire hazard due to electrical shock.

●If the cord becomes damaged, order a new one to replace it.

No foreign matter Watch out	Unplug the power
forelectrical shock	cord from the socket

ii

Safety Precautions

Safety Precautions

CAUTION

Do not use or store the GL220 in a location exposed to direct sunlight or the direct draft of an air conditioner or heater.

● Such location may impair the GL220’s performance.

Storage/Use prohibited

Do not use the GL220 in a location subject to excessive mechanical vibration or electrical noise.

● Such location may impair the GL220’s performance.

Do not place coffee cups or other receptacles containing fluid on the GL220.

●Fluid spilling inside the GL220 may cause a fire hazard due to electrical shock or current leakage.

Avoid water Watch out electrical shock

To insert or disconnect the power cord or a signal input cable, grasp the power cord’s plug or the signal input cable’s connector.

●Pulling the cord/cable itself damages the cord/cable, resulting in a fire hazard or electrical shock.

Use prohibited

No pulling

If fluid or foreign matters enters inside the GL220, turn off the Power switch and disconnect the power cord from the electrical socket.

●Use in such status may cause a fire hazard due to electrical shock or current leakage.

● Contact your sales representative or nearest Graphtec vendor to request repair.

Unplug the power cord from the socket

Do not attempt to lubricate the GL220’s mechanisms.

● Such action may cause the GL220 to break down.

Do not input voltage that exceeds the permissible input voltage range that is specified on the GL220’s label.

●Exceeding the specified voltage input range may cause electrical shock or a fire hazard.

Use prohibited

Never clean the GL220 using a volatile solvent (such as thinner or benzine).

●Such action may impair the GL220’s performance.

●Clean off any soiled areas using a soft dry cloth.

No lubrication

No volatile solvents

iii

CONTENTS

CONTENTS

Introduction.........................................................................................................................................................	I
Notes on Use.......................................................................................................................................	I
About Registered Trademarks............................................................................................................	II
To Ensure Safe and Correct Use........................................................................................................................	i
Conventions Used in This Manual.......................................................................................................	i
Description of Safety Symbols.............................................................................................................	i
Safety Precautions.............................................................................................................................................	ii

1	General Description...................................................................................	1-1
1.1	Overview..............................................................................................................................................	1−2
1.2	Features................................................................................................................................................	1-2
1.3	Operating Environment..........................................................................................................................	1-3
	Ambient Operating Conditions.........................................................................................................	1-3
	Warming-up Before Use..................................................................................................................	1-3
	Configuration When in Use..............................................................................................................	1-3
1.4	Notes on Temperature Measurement....................................................................................................	1-4
1.5	Notes on Using the Monitor...................................................................................................................	1-4
1.6	Changing the Display Language...........................................................................................................	1-4

2 Checks and Preparation............................................................................		2-1
2.1	Checking the Outer Casing...................................................................................................................	2-2
2.2	Checking the Accessories.....................................................................................................................	2-2
2.3	GL220 Nomenclature and Functions.....................................................................................................	2-3
2.4	Connecting the Power Cable and Turning on the Power.......................................................................	2-4
	Connecting to an AC Power Supply.................................................................................................	2-4
	Connecting to a DC Power Supply..................................................................................................	2-5
2.5	Connecting the Signal Input Cables......................................................................................................	2-6
	Terminal Configuration and Signal Types.........................................................................................	2-6
2.6	Logic Alarm Cable Connection and Functions......................................................................................	2-7
	Logic Alarm Cable Connection........................................................................................................	2-7
	Internal Equivalent Circuit of the Input/Output Circuit......................................................................	2-8
	Wiring...............................................................................................................................................	2-9
2.7	Attaching USB Memory.......................................................................................................................	2-10
	Inserting a USB Memory...............................................................................................................	2-10
2.8	Connecting to a PC.............................................................................................................................	2-11
	Connection Using a USB Cable.....................................................................................................	2-11
2.9	Using the Battery Pack (the B-517 Option).........................................................................................	2-12
	Mounting the Battery Pack.............................................................................................................	2-12
	Charging the Battery......................................................................................................................	2-13
2.10	Connecting the Humidity Sensor (Option)...........................................................................................	2-14
2.11	Precautions to Observe When Performing Measurement...................................................................	2-15
2.12	Noise Countermeasures......................................................................................................................	2-16
2.13	Setting the Date and Time...................................................................................................................	2-17
	How to Recharge the Rechargeable Battery.................................................................................	2-17
	How to Set the Date and Time.......................................................................................................	2-17

3 Settings and Measurement........................................................................		3-1
3.1	Window names and functions...............................................................................................................	3-2
3.2	Key Operation........................................................................................................................................	3-7
	(1) SPAN/TRACE/POSION..............................................................................................................	3-7
	(2) TIME/DIV....................................................................................................................................	3-8

I

CONTENTS

	(3) MENU.........................................................................................................................................		3-8
	(4)	QUIT (LOCAL)............................................................................................................................	3-8
	(5)	Direction keys.............................................................................................................................	3-8
	(6)	ENTER.......................................................................................................................................	3-8
	(7) FAST FORWARD key (KEY LOCK)...........................................................................................		3-9
	(8)	START/STOP (USB Drive Mode)...............................................................................................	3-9
	(9)	REVIEW...................................................................................................................................	3-10
	(10) DISPLAY.................................................................................................................................		3-10
	(11) CURSOR (ALARM CLEAR)...................................................................................................		3-11
	(12) FILE........................................................................................................................................		3-11
3.3	Operation Modes.................................................................................................................................		3-13
	(1)	Free Running............................................................................................................................	3-13
	(2)	Capturing..................................................................................................................................	3-14
	(3)	Dual View Replaying.................................................................................................................	3-14
	(4)	Replaying.................................................................................................................................	3-15
3.4	Setting Menus.....................................................................................................................................		3-16

4	Specification..............................................................................................	4-1
4.1	Standard Specifications.........................................................................................................................	4-2
	Standard Specifications...................................................................................................................	4-2
	Internal memory devices.................................................................................................................	4-3
	PC Interface.....................................................................................................................................	4-3
	Monitor.............................................................................................................................................	4-3
	Input Unit Specifications..................................................................................................................	4-4
4.2	Function Specifications.........................................................................................................................	4-5
	Function Specifications....................................................................................................................	4-5
	Trigger Functions.............................................................................................................................	4-5
	External Input/Output Functions......................................................................................................	4-6
4.3	Accessory/Option Specifications...........................................................................................................	4-7
	Control Software..............................................................................................................................	4-7
	Accessories.....................................................................................................................................	4-7
	Battery Pack B-517 (Option)............................................................................................................	4-7
	Humidity Sensor B-530 (Option)......................................................................................................	4-7
4.4	External Dimensions.............................................................................................................................	4-9
Index.............................................................................................................		S-1

II

CHAPTER 1 General Description

This chapter provides a general description of the GL220 and its features.

1.1 Overview

1.2 Features

1.3 Operating Environment

1.4 Notes on Temperature Measurement

1.5 Notes on Using the Monitor

1.6 Changing the Display Language

CHAPTER 1 General Description

1.1Overview

The GL220 (with color monitor and internal memory) are compact, lightweight data loggers.

GL220 are equipped with an Internal memory to enable the direct capture of a large volume of data to USB memory. Furthermore, the data loggers can be connected to a PC via USB to enable on-line settings, measurement, and data capture.

1.2Features

Input

●Adoption of an M3 screw type terminal facilitates wiring.

●The GL220 enables settings to be made using dedicated keys and interactive menus, using just one hand.

Display

●With the GL220’s high-resolution 4.3-inch wide TFT color liquid crystal display, you can confirm the waveforms of measured data and each channel’s settings at a glance.

Data Capture

●A large volume of measured data can be saved to a USB memory.

●The high-capacity internal memory enables measurement for a long term without the use of USB memory.

●The USB memory device can be removed and replaced without terminating data capture operations. This allows any part of the data to be extracted during long capture operations.

●Internal memory used for the built-in memory maintains captured data even after the power is turned off.

●The Internal memory can be used with disk images thus multiple data items can be maintained.

●For voltage and humidity measurements, data can be captured up to a sampling speed of 10 ms/1ch by setting fewer channels for measurement (sampling speed is 100 ms and above for temperature measurements).

●The new ring memory capture function maintains latest data even after capturing for a long term. (You need to set how long you want to keep data.)

Data Control & Processing

●The application software provided lets you set conditions and monitor data on on a computer using the USB interface.

●The application software allows you to control multiple GL220 units from a single computer to easily perform multi-channel measurements.

●The USB drive mode function enables the GL220’s internal memory to be recognized as an external drive by your PC. (Connect the GL220 to your PC and turn on the power supply to the GL220 while holding down the [START] key.)

●Captured data can be read from the application software to files and displayed for processing.

●Data can be transferred off-line to a computer using USB memory.

1-2

CHAPTER 1 General Description

1.3Operating Environment

This section explains the operating environment for the GL220

Ambient Operating Conditions

(1)Ambient temperature and humidity (the GL220 must be operated within the following ranges.)

•Temperature range: 0 to 45°C (0 to 40°C when battery pack is mounted)

•Humidity range: 5 to 85% RH

(2)Environment (do not use in the following locations.)

•A Location such as being exposed to direct sunlight

•Locations exposed to salty air, corrosive gases, or organic solvents

•Dusty locations

•Locations subject to vibration or impact

•Locations subject to voltage surge or electromagnetic interference such as lightning or electric furnaces

(3)Installation category (overvoltage category)

•The GL220 belongs to Installation Category II defined in IEC60664-1.

•Never use the GL220 for Installation Category III or IV.

(4)Measurement category

•The GL220 belongs to Measurement Category I defined in IEC61010-1.

•The GL220 cannot be used for Measurement Category II, III, or IV.

If condensation occurs...

Condensation occurs in the form of water droplets on the device surfaces and interior when the GL220 is moved from a cold to a warm location. Using the GL220 with condensation will cause malfunctioning. Wait until the condensation has disappeared before turning on the power.

Warming-up Before Use

The GL220 should be allowed to warm up with the power turned on for approximately 30 minutes to ensure that it operates according to the specified performance.

Configuration When in Use

It is recommended to use the GL220 while it is laid flat or inclined on the stands.

Usage Configuration

90°

Laid flat	Inclined on the stands	Opening the stands

To prevent possible malfunction, do not block the air vents of the GL220.

If you use the GL220 in other position than described in the above, the measurement accuracy may not meet the specifications.

To prevent possible toppling, use both of the stands of the GL220 when you place it inclined. Use the GL220 with both of the two stands open as shown in the figure above.

1-3

CHAPTER 1 General Description

1.4Notes on Temperature Measurement

Please observe the following precautions when performing temperature measurement.

●Do not block the air vents. Always provide a space of at least 30 cm on all sides of the GL220.

●For stabilized temperature measurement, allow the GL220 to warm up for at least 30 minute safter turning it on.

●Exposure of the input terminals to direct drafts, direct sunlight, or abrupt changes in temperature may impair the equilibrium of the input parts and result in measurement errors. To measure temperature in such an environment, take appropriate countermeasures such as changing the installation site of the GL220.

●If measured values fluctuate due to external noise, try the countermeasures described on page 2-16.

1.5Notes on Using the Monitor

The monitor is an LCD display unit, and so the display will vary depending on the operating environment.

If the screen saver function is used, it will operate and clear the screen if no operations are performed during the preset time. If the screen saver operates, press any key to restore the display.

•Condensation may form on the LCD screen if the GL220 is moved from a cold to a warm location. If this occurs, wait until the LCD screen warms up to room temperature.

•The LCD screen is manufactured to extremely high precision. Black dots may appear, or red, blue, and green dots may not disappear. Likewise, streaks may appear when viewed from certain angles. These phenomena are due to the LCD screen construction, and are not signs of a fault.

1.6Changing the Display Language

You can choose either English, Japanese, French, German, Chinese, or Korean as the language displayed on the screen. The default display language is set to English when the GL220 is shipped overseas. To change the display language, see the instructions in “OTHR:Language”.

1-4

CHAPTER 2 Checks and Preparation

This chapter explains how to check the GL220’s external casing and accessories, and how to prepare the GL220 for operation.

2.1Checking the Outer Casing

2.2Checking the Accessories

2.3GL220 Nomenclature and Functions

2.4Connecting the Power Cable and Turning on the Power

2.5Connecting the Signal Input Cables

2.6Connecting the External I/O Cable

2.7Attaching USB Memory

2.8Connecting to a PC

2.9Using the Battery Pack (the B-517 Option)

2.10Connecting the Humidity Sensor (Option)

2.11Precautions to Observe When Performing Measurement

2.12Noise Countermeasures

2.13Setting the Date and Time

CHAPTER 2 Checks and Preparation

2.1Checking the Outer Casing

After unpacking, check the GL220’s outer casing before use. In particular, please check for the following:

●Surface scratches

●Other flaws such as stains or dirt

2.2Checking the Accessories

After unpacking, check that the following standard accessories are included.

Standard Accessories

Item			Remarks	Quantity
Quick Start Guide		GL220-UM-85x		1
CD-ROM		User's Manual, Application software		1
AC cable/AC adapter		100 to 240 VAC, 50/60 Hz		1
Optional Accessories
Item		Option number	Remarks
Logic alarm cable		B-513	2m, Bare tips
DC drive cable		B-514	2m, Bare tips
Battery pack		B-517	7.4V/2200mAh 17Wh
Humidity sensor *1		B-530	3 m, with dedicated power connector
Humidity sensor power box		B-542	For connection with 10 humidity sensors: Built to order
M3 screws with flat washers (60)		B-543	60 per set
USB memory 2GB		B-550	2GB
Shunt resistor 250 Ω		B-551	250 Ω, Rated power of 1 W, Maximum service voltage of
			15.8 V, Built to order
T-type thermocouple *2		JBS-7115-5M-T	5-m length, 5 thermocouples per set, wire diameter of
			0.32, 1.0 x 1.6 x 5000 mm
K-type thermocouple *2		JBS-7115-5M-K	5-m length, 5 thermocouples per set, wire diameter of
			0.32, 1.0 x 1.6 x 5000 mm
Extra fine K-type thermocouple		ST-55K-TC-1.2M	Tip wire diameter of 0.127, 0.5 x 0.7 x 200 mm, Relay
(TC200/TD1000), 5 per set			part 1 m, 5 per set
Needle-shape K-type		RIC-410	-100 to 300°C, Class 1, Cord length: 1.1 m
thermocouple
Stationery-surface K-type		RIC-420	-30 to 400°C, Class 2, Cord length: 1.1 m
thermocouple
L-type stationery-surface K-type		RIC-430	-30 to 600°C, Class 2, Cord length: 1.1 m
thermocouple
Mini-connector for K-type		RIC-440	5 per set, Connectable thermocouple: Wire diameter of
thermocouple (5 per set)			0.65 mm, End terminal: M3Y terminal
Mini-connector for K-type		RIC-441	2 per set, Connectable thermocouple: Wire diameter of
thermocouple (2 per set)			0.65 mm, End terminal: M3Y terminal
Mini-connector for T-type		RIC-450	5 per set, Connectable thermocouple: Wire diameter of
thermocouple (5 per set)			0.65 mm, End terminal: M3Y terminal
Mini-connector for T-type		RIC-451	2 per set, Connectable thermocouple: Wire diameter of
thermocouple (2 per set)			0.65 mm, End terminal: M3Y terminal

*1: Allowable temperature range: -25 to +80°C *2: Sold only in Japan.

2-2

Battery cover

One battery pack can be installed

(Battery pack is the option B517)

CHAPTER 2 Checks and Preparation

2.3GL220 Nomenclature and Functions

This section describes the names and function of parts of the GL220.

USB I/F terminal (left side)

	Operation status LED
	POWER	: ON when the power is ON
Monitor	START	: ON during data capture

CHARGE : ON while the battery is charging

Power switch (Right side)

Control panel keys

AC adapter jack

USB device terminal

GND terminal

Power output connector for humidity sensor	Analog input terminal
(Humidity sensor is the option B-530)

External input/output terminals

•LOGIC/PULSE

•EXT TRIG/SAMPLE

•ALARM

Logic alarm cable(When using the B-513 option)

Label

Label

Stands

Before using the stands, read the precautions provided in

Section 1.3 "Operating Environment".

2-3

CHAPTER 2 Checks and Preparation

2.4Connecting the Power Cable and Turning on the Power

This section describes how to connect the power cable and turn on the power. The connection method will vary depending on the type of power supply used.

Connecting to an AC Power Supply

Use the AC cable and AC adapter that are provided as accessories.

Be sure to use the AC adapter that is supplied as a standard accessory.

(1) Plug the AC cable into the AC adapter.

AC adapter

AC cable

(2) Connect the output side of the AC adapter to the connector on the GL220.

AC adapter cable

(3)Using the flat-blade screwdriver, press against the minus (-) button above the GND terminal, while connecting the grounding cable to the GL220. Connect the other end of the cable to ground.

(4)Plug the AC cable into the mains power outlet.

(5)Press the power switch on the GL220 to the ON side to turn on the power.

Always connect the GND terminal and refer to the safety precautions. The GL220 must be grounded even when connected to other devices and sharing a common ground level.

2-4

CHAPTER 2 Checks and Preparation

Connecting to a DC Power Supply

Use the optional DC drive cable (B-514).

Use a power supply within the 8.5 to 24 VDC range (26.4 VDC max.).

(1)Configure the tip of the DC drive cable (B-514: 2m) to enable it to be connected to the DC power supply.

(2)Connect the DC output side to the power supply connector on the GL220.

B-514

8.5 to 24 VDC power supply

Shielded lead (– side)

White (+ side)

(3) Connect the DC input side to the DC power supply.

Be sure to check the polarity of the wire tips when performing wiring.

(4) Press the power switch on the GL220 to the ON side to turn on the power.

2-5

CHAPTER 2 Checks and Preparation

2.5Connecting the Signal Input Cables

This section describes how to connect the signal input cables.

Terminal Configuration and Signal Types

	Terminal configuration
Voltage input	Thermocouple input
DC voltage
	Compensation wire is
	used if it is required.
Resistance temperature detector	Current input
not available
	DC current
	Shunt resister
	Ex: The current is converted to the voltage in
	the shunt register.
	For 4 to 20mA current input, installing 250
	ohms (0.1%) resister for converting 1 to 5V.
	* 250 ohms shunt register is the option B551.

+.........................................High-voltage terminal (terminal for high-voltage input signals)

–..........................................Low-voltage terminal (terminal for low-voltage input signals)

Item	Description
Input configuration	Isolated input, scanning
Analog voltage	20, 50, 100, 200, 500 mV/F.S.; 1, 2, 5, 10, 20, 50 V/F.S.; 1-5V
Thermocouples	K, J, E, T, R, S, B, N, W (WRe 5-26)
A/D resolution	16-bit (Effective resolution: About 1/40,000 of the +/- range)
Filter	Off, 2, 5, 10, 20, 40
	Filter operation is on a moving average basis.
	The average value of the set sampling count is used.
	If the sample interval exceeds 5 seconds, the average value of data ob-
	tained in a sub-sample (5 seconds) is used.

2-6

CHAPTER 2 Checks and Preparation

2.6Logic Alarm Cable Connection and Functions

Logic Alarm Cable Connection

The logic alarm cable (B-513: Option) enables logic/pulse input, external trigger input, external sampling input, and alarm signal output.

Connect the logic alarm cable (B-513: Option) to the external input/output terminal as shown below.

	Logic alarm cable
	(B-513: Option)
Logic/Pulse Specifications
Item	Description
Number of input channels	4
Input voltage range	0 to +24V max. (single-ended ground input)
Threshold level	Approx. +2.5V
Hysteresis	Approx. 0.5 V (+2.5 to +3 V)

* Logic input and pulse input are switchable.

Trigger input/external sampling input specifications

	Item	Description
	Number of input channels	1
	Input voltage range	0 to +24V max. (single-ended ground input)
	Threshold level	Approx. +2.5V
	Hysteresis	Approx. 0.5 V (+2.5 to + 3 V)
Alarm output specifications

Item	Description
Number of output channels	4
Output format	Open collector output
	+5V, pull-up resistance 10 KΩ
	* See the next page for details on alarm output.

2-7

CHAPTER 2 Checks and Preparation

Internal Equivalent Circuit of the Input/Output Circuit

● Alarm Output

+5V			Maximum ratings of the transistor for alarm output
			VCEO (Collector-emitter voltage)	: 30 V
			IC (Collector current)	: 0.5	A
			PC (Collector dissipation)	: 0.2	W
			* The maximum ratings must not be exceeded.

		Example of external
	10K	connection
		ALARM
		Load
	2SC2411K

GND

Required for an inductive load such as a relay

DC

(5 to 24V)

● Logic/Pulse Input

+5V +5V

100K

Comparator

68K

LOGIC/PULSE(n) 220K

GND

● Trigger Input

+5V	+5V
100K Ω	Comparator
TRIGGER/	68K Ω
SAMPLE
	220K Ω
GND	0.01µF

2-8

CHAPTER 2 Checks and Preparation

Wiring

Cable tips are bare tips. Perform wiring for the necessary functions.

Signal Name

Channel Number

Wire Color

Logic/Pulse output

1

Orange with red dotted line

2

Orange with black dotted line

3

Gray with red dotted line

4

Gray with black dotted line

Alarm output

1

White with red dotted line

2

White with black dotted line

3

Yellow with red dotted line

4

Yellow with black dotted line

Trigger input/external sampling input

Pink with red dotted line

GND

Pink with black dotted line

Shielded

* Logic and pulse are switchable.

Orange with red dotted line

: 1

Orange with black dotted line

: 2

Logic/Pulse input

Grey with red dotted line

: 3

Grey with black dotted line

: 4

White with red dotted line

: 1

White with black dotted line

: 2

Alarm output

Yellow with red dotted line

: 3

Yellow with black dotted line

: 4

Pink with red dotted line :

Trigger input/sampling input

Pink with black dotted line

GND

Shielded

2-9

CHAPTER 2 Checks and Preparation

2.7Attaching USB Memory

Attaching USB memory to the GL220 allows you store measured data directly.

Adequate precautions against static electricity must be taken when handling USB memory.

Inserting a USB Memory

Attach the USB memory to the USB memory port.

USB Memory

When you attach the USB memory to GL220A, be careful during handling so as not to bump or drop the unit. <Supported USB Memory Specifications>

• Power supply	: +5 V
• Power consumption	: 250 mA or below
• Capacity	: no limit (each file must be smaller than 2 GB)

*USB memory with security functions such as fingerprint authentication or having a connector without a shell (metallic part) cannot be used.

Use the B-550 (option) as USB memory.

2-10

CHAPTER 2 Checks and Preparation

2.8Connecting to a PC

Use the USB cable to connect the GL220 to a PC.

Connection Using a USB Cable

Use the USB cable to connect the GL220 to a PC.

USB cable

If the USB cable is used, the USB driver must be installed in your PC. Please refer to “USB Driver

Installation Manual” in the accessory CD-ROM for the installation procedure.

Use the A-B USB cable to connect the GL220 to a PC.

A-connector B-connector

2-11

CHAPTER 2 Checks and Preparation

2.9Using the Battery Pack (the B-517 Option)

●The B-517 battery is the only battery type that can be used with the GL220.

●Refer to the specifications (P.4-7) for information on the battery run time.

●The operating temperature range of the GL220 with a battery pack mounted is as follows:

Running on battery	: 0 to 40°C
Battery being charged	: 15 to 35°C

Mounting the Battery Pack

(1) While lightly pushing the grip of the battery cover, slid the cover in the direction indicated bythe arrow.

1

2

(2) Attach the lithium-ion battery (B-517).

1 2

(3) Attach the battery cover.

2-12

CHAPTER 2 Checks and Preparation

Charging the Battery

Expected time required for charging: ● Approx. 4 hours

The battery pack is charged by mounting it in the GL220, attaching AC adapter to the GL220.

(1)Mount the battery pack in the GL220 (see the previous section for the mounting procedure).

(2)Turn on the power to the GL220. (Please see Section 2.4, “Connecting the Power Cable and Turning on the Power”).

(3)The CHARGE LED lights.

CHARGE LED

•The GL220 is equipped with a temperature monitor function which starts automatic charging as soon as it is cooled down. Therefore, depending on the internal temperature, charging may not be performed immediately.

•When charging is attempted while the power is ON, charging may not be performed immediately even if the temperature environment conforms to the specification. In such a case, set the Screen Saver settings to ON or perform charging while the power is OFF.

•If input is being made directly from the DC power supply instead of the AC adapter, the DC voltage must be at least 16V.

•The operating temperature range during charge is from 15 to 35°C.

2-13

CHAPTER 2 Checks and Preparation

2.10Connecting the Humidity Sensor (Option)

Connect the + and - lead wires of the humidity sensor (the B-530 option) to the desired terminals, and theninsert the round connector into the 5V OUT connector on the GL220.

Brown: Connected to the + terminal

White: Connected to the - terminal

Humidity sensor (the B-530 Option)

Connected to the 5V OUT terminal.

Do not use the sensor in a strong electrolyte envronment. Measured results may not satisfy to the stated.

2-14

CHAPTER 2 Checks and Preparation

2.11Precautions to Observe When Performing Measurement

Please be sure to read the following carefully in order to prevent electric shocks or shorts.

•Do not apply voltage of 60Vp-p or above between the analog input section and main unit, or between analog input channels.

•Do not apply high-voltage high-frequency signals (50 kHz and above).

•Be sure to use only the AC adapter provided as a standard accessory.The rated power supply range for the adapter is 100 to 240 VAC, and the rated frequency is 50/60 Hz. Do not use any other voltages.

•Maximum input voltage

If a voltage exceeding the specified value is input, the semiconductor relay in the input section will be damaged. Never input a voltage exceeding the specified value even for a moment.

<Between +/– terminals (A) >

• Maximum input voltage

: 60Vp-p

<Between input terminal/input terminal (B) >

• Maximum input voltage

: 60Vp-p

• Withstand voltage

: 350 Vp-p at 1 minute

<Between input terminal/GND (C) >

• Maximum input voltage

: 60Vp-p

• Withstand voltage

: 350 Vp-p at 1 minute

• Input Circuit Diagram for Analog Input (Voltage, Thermocouples)

50Ω

500kΩ 0.05µF

500kΩ 0.05µF

50Ω

Channel Switching Relay

Capacitors have been incorporated into the input circuit to increase the noise elimination capability.

After voltage measurement, when the inputs have been disconnected, there will still be some electric charge remaining. Before starting another measurement operation, short-circuit the + and - terminals to enable self-discharge.

The GL220 has a scan system.

While in the status (open) in which signals are not input to the input terminal, measured results may be influenced by signals from other channels.

In such a case, turn OFF the input setting or short circuit +/-.

If signals are input correctly, measured results are not influenced by other channels.

2-15