Graphtec GL220 Quick Start Guide
Checking the Outer Casing
Checking the Accessories
Setting and Checking the AC Line Frequency
After unpacking, check the GL220's Exterior to make sure that
there are no crack or other damage before use.
Set the AC line frequency inthe “OTHR” menu. This setting
(50 or 60 Hz) affects the noise reduction performance of the device.
o Quick Start Guide : 1
o CD-ROM : 1
o AC cable/AC adapter : 1
Don't forget to
check the setting
Thank you for choose the midi LOGGER GL220.
This Quick Start Guide describes the basic operations.
Please refer to the manual (PDF) in the CD-ROM for more information.
midi LOGGER
GL220
Quick Start Guide
GL220-UM-852
GL220 Contents
Nomenclature............................................................................
Connection Procedures..............................................................
Precautions to Observe When Performing Measurement ..............
Descriptions of the Control Panel Keys .......................................
Descriptions of the Menu Screens ..............................................
Measurement Procedure............................................................
1. Preparations : How to Make the Preparations Required for Data Capture....
2. Setup : How to Make the Settings..................................................
3. Data Capture : How to Capture Data ..............................................
4. Data Replay : How to Replay Captured Data .....................................
Convenient Functions................................................................
Trigger Functions to Control Data Capture Start/Stop Operations.................
Span, Position and Trace Functions to Adjust the Waveform Display.............
Specifications...........................................................................
Standard Specifications ...........................................................
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3
4
5
8
9
9
10
13
14
15
15
17
18
18
External Input/Output Functions ..............................................
Input Unit Specifications ..........................................................
Installation Guide......................................................................
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GL220 Nomenclature
Top Panel
Control panel keys
Power switch
Operation status LED
-POWER
-START
-CHARGE
AC adapter jack
Monitor
GND terminal
External input/output terminals
-LOGIC/PULSE
-EXT TRIG/SAMPLE
-ALARM
Logic alarm cable is required for connection
(Cable is the option B-513)
Power jack for the humidity sensor
(Humidity sensor is the option B-530)
Analog signal input terminals
Connecting the USB
memory device
Bottom Panel
Label
2
Battery cover
One battery pack can be installed
(Battery pack is the option B517)
USB interface terminal
Note: Connect wires to the desired terminals according to the terminal numbers on
top of the terminal block.
GL220 Connection Procedures
Connecting the AC Adapter
Connect the output side of the AC adapter to the
connector indicated as "DC LINE" on the GL220.
Making Connections to the Analog Input Terminals
CH 1 2 3 4 5 6 7 8 9 10
Direct voltage input Thermocouple inputDirect current input
＋
Direct voltage
-
＋
Direct voltage
-
Connecting the Grounding Cable
Grounding cable
Use a flathead screwdriver to push the button above the
ground terminal while connecting the grounding cable to the
GL220. Connect the other end of the cable to ground.
Shunt resistance
Ex: for current in the 4 to 20 mA
range, apply a resistance of 250 W
(±0.1%) and perform measurement
in the 1 to 5 V range.
Note: Use B-551 (option)
for this shunt resistance.
＋
－
Compensation
copper wire
Note: Connect wires to the desired terminals according to the terminal numbers on
top of the terminal block.
Making Connections to the External Input/Output Terminals
Connection diagram
B-513
*B-513 (sold separately) cable is required for external input/output.
(For logic/pulse input, alarm output, trigger input, external sampling input
Orange with red dotted line : 1
Orange with black dotted line : 2
Grey with red dotted line : 3
Grey with black dotted line : 4
White with red dotted line : 1
White with black dotted line : 2
Yellow with red dotted line : 3
Yellow with black dotted line : 4
Pink with red dotted line : Trigger input/
external sampling input
Pink with black dotted line
Shielded
Logic/pulse
input
Alarm output
GND
3
Precautions to Observe When Performing Measurement
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
Warming-up
GL220 requests to have approximately 30 minutes warm-up in order to have the
specified performance.
Unused channels
The analog input section has high impedance.
If it is open, measured value may vary due to noise.
In such a case, set to "Off" unused channels in the AMP setting menu or
short the + and – terminals.
C
＋
ー
＋
A
ー
＋
B
ー
Noise countermeasures
If measured values fluctuate due to extraneous noise, conduct the following
countermeasures.
(Results may differ according to noise type.)
Ex 1 : Connect the GL220's GND to ground.
Ex 2 : Connect GL220's GND to measurement object's GND.
Ex 3 : In the AMP settings menu, set filter to any setting other than "OFF".
Ex 4 : Operate GL220 with batteries (Option: B-517).
Ex 5: Set the sampling interval which enables GL220’s digital filter (see table below).
Number of Measuring
Channels*
1 chahnnel or less
2 chahnnels or less
5 chahnnels or less
10 chahnnels or less
*Number of Measuring Channels” is the number of channels in which
input settings are NOT set to “OFF”.
**Temperature cannot be measured when the sampling interval is set to 10, 20, or 50 ms.
Allowed Sampling Interval
10 msec or slower**
20 msec or slower**
50 msec or slower**
100 msec or slower
Sampling Interval which
enables Digital Filter
50 msec or slower
125 msec or slower
250 msec or slower
500 msec or slower
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GL220 Descriptions of the Control Panel Keys
(2) TIME/DIV
(4) QUIT
+ + ENTER
Password setting
(12) CURSOR
(11) FILE
(ALARM CLEAR)
(10) REVIEW
(8) START/STOP (USB DRIVE MODE)
(9) DISPLAY
(1) SPAN/POSI/TRACE
(3) MENU
(5) DIRECTION KEYS
(6) ENTER
(7) FAST FORWARD
(KEY LOCK)
1. SPAN/POSI/TRACE
This key enables SPAN, POSITION, and TRACE settings to be made independently for
each channel. Each time this key is pressed, the display mode changes in the sequence
shown below. Use the and keys to select the
channel, and the and keys to change the setting values.
MONITOR
Displays digital values (default).
SPAN
POSITION
TRACE
Used to change span settings (change the waveform amplitude).
Used to change position settings (adjust the upper and lower values
of the waveform).
Used to change trace settings
Note: If the QUIT key is pressed when the GL220 is in the SPAN, POSITION,
or TRACE mode, the display returns to MONITOR mode.
(set the waveform display to On or Off).
2. TIME/DIV
Press the TIME/DIV key to change the time axis display range on the waveform screen.
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3. MENU
Press the MENU key to open a setup menu. Each time this key is pressed, the setup screen
tabs change in the sequence shown below.
AMP
DATA
TRIG
USER
OTHR
- AMP Settings
Used to set the input, range, filter and other settings.
- Data Capture Settings
Used to set settings such as the sampling interval, data capture
destination, and calculations during data capture.
- Trigger Settings
Used to specify data capture start and stop conditions, and alarm
conditions.
- User Settings
Used to set the names of the users of this device, and to change
from one user to another.
- Other Settings
Used to set settings such as the screen brightness, background
color, and language.
Settings are
complete !
4. QUIT (LOCAL)
Press the QUIT key to cancel the settings and return them to their default status. If the
device is in the Remote (Key Lock) status that the device is operated by the computer via
the interface,, press this key to return the device to the normal operating status (Local).
5. Keys (DIRECTION KEYS)
These keys are used to select menu setup items, to make span settings in the digital display
area, to move the cursors during a data replay operation, and so forth.
6. ENTER
Press the ENTER key to enter the settings made in the setup menus, and to confirm your
settings.
7. Keys (KEY LOCK)
These keys are used to move the cursor at high speed during a data replay operation, and to
change the operation mode in the file settings box. Hold down both keys simultaneously for
at least two seconds to enable key lock status. To cancel key lock status, press them again
for at least two seconds.
The key lock status can be confirmed by the status of the key lock lamp on the monitor.
Note: Pressing these keys simultaneously with the key + ENTER + key enables
password protection for the key lock operation.
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