GL820 Modular system allows expansion up to 200 channels

GL820 Modular system allows expansion up to 200 channels
2016/8/11
GL820:Instrument products:Graphtec Corporation
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GL820
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Huge 2GB Flash Memory,
modular system allows expansion up to 200 channels
Modular system allows expansion up to 200 channels
The standard configuration has 20 analogue input channels. It can be expanded up to 200 channels by adding
optional 20 channelextension terminal kits.
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Configuration for additional channels
Number of channels
20 ch
40 ch
100 ch
200 ch
GL820 Unit
1 set
1 set
1 set
1 set
Extension terminal base kit (B-537)
N/A
1 set
1 set
1 set
20ch extension terminal set (B-538)
N/A
1 set
4 sets
9 sets
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All channels are isolated, each with multifunction input
Isolated channels, each with multifunction
input
It contains an isolated input system which ensures that signals are
not corrupted by inputs to other channels, thus eliminating wiring
concerns. The GL820s multi-type inputs are suitable for voltage,
temperature, humidity, pulse, and logic signals, enabling combined
measurements of different phenomena like temperature/humidity
and voltage.
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*) The input signal needs to be not exceeding the specified voltage at any time.
The component in the amplifire of the unit may have the damage by over voltage.
Please check the details of over voltage in the specification sheet (Maximum input voltage or Withstand voltage
seccion) or the caution label attached on the unit.
Maximum sampling rate of up to 10ms
Provides faster sampling rates for voltage measurements. Can achieve 10ms sampling interval when limiting the
number of channels in use.
Sampling interval
Channels
Measurement*2
Voltage
Temp.
10ms
20ms
50ms
100ms
200ms
500ms
1s
2s
1
2
5
10
20
50
100
200
X
X
X
X
X
X
X
X
N/A
N/A
N/A
X
X
X
X
X
X: selection is available, N/A: selection is not available
*2: For humidity measurements, the 0-1 V range and scaling function are used to display results directly in Relative
Humidity. Sampling rate limitations are same as those for voltage measurement.
External sampling function
Captured data can be synchronized with external timing signals when the external sampling rate function is
used.*3
*3: The Logic/alarm cable, (B-513 option), is needed to connect the alarm output ports.
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Huge built-in 2GB Flash memory
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Built-in 2GB Flash Memory for reliable long term measurement
The 2GB Flash Memory enables secure long term data measurement without using an external storage device.
Data is retained even when power is turned off because flash memory is used.
Capturing time*4 (20 Analogue channels being used.)
[unit: days]
10ms*5
50ms*5
100ms*5
200ms
500ms
1s
2s
Built-in 2GB Flash Memory
29
72
89
101
253
506
5,068
512MB USB memory stick*6
7
18
22
25
64
129
1,294
Sampling interval
*4: The above figures are approximate.
*5: The sampling rate is limited by the number of channels in use. (10ms: 1ch, 50ms: 5ch, 100ms: 10ch)
*6: Standard USB memory devices without high-end functions such as fingerprint recognition are required.
Ring memory function
The most recent data is saved when internal memory or external memory is configured in ring memory mode.
Captured data size in ring memory mode is limited to 1/3 of available memory.
Hot-swappable USB memory sticks
Also supports popular USB memory sticks for external storage. The GL820 saves measured data directly to
USB memory sticks. USB memory sticks can be replaced during measurement without data loss.
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Large easy-to-read 5.7-inch wide TFT color LCD
Utilises a bright clear 5.7-inch wide TFT color LCD monitor (VGA: 640 x 480 dots). Makes it easy to read data in
waveform or digital form and to check your measurement parameter settings. The background color of the screen
can be set to black or white.
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Waveform display (Analog + Digital)
Dual display (Current + Past)
Waveform display (Analog only)
Digital display
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PC-friendly, supports USB memory stick, has USB and
LAN ports
Supports USB memory devices
Captured data can be saved directly to USB memory sticks when these are chosen for external storage.
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Easy connection to PC via USB or Ethernet
The GL820 can be controlled by a PC if connected by USB cable, allowing transfer of data to a PC in real-time.
If you need to move large data files to your PC then the GL820 can emulate an external USB drive for quick data
transfer.
The WEB & FTP server function, FTP client-server function and NTP client function are supported when the
GL820 is connected to the LAN via the Ethernet port.
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Easy application software
Easy connection to PC
The GL820 can be controlled by a PC if connected by USB cable, allowing transfer of data to a PC in real-time.
If you need to move large data files to your PC then the GL820 can emulate an external USB drive for quick data
transfer.
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Up to 10 units or 500 channels can be connected to 1 PC through LAN or USB. Measurements can be
performed simultaneously or independently.
Various measurement screens
Select from 4 screens such as the Y-T (waveform + digital), Y-T (large waveform), digital view and report view to
display measurements in real time.
The direct-Excel function enables captured data to be written directly to an Excel file.
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Informative data replay screens
Three screens are available to view measurements in replay mode. The Y-T (waveform) display, the digital
display and the X-Y graph can be selected to show your specified data. The maximum, minimum, average and
peak-to-peak values between cursors are shown when using the digital display screen.
Simple configuration screens
The number of configuration screens has been reduced to five. Parameters can be set easily while viewing
measured waveforms.
Useful functions
Post-process your captured data with useful functions for arithmetic calculation, statistical calculation, search
and file format conversion.
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The configuration of CSV file can be
specified.
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Other features
Alarm output function
Alarm signals can be output when alarm conditions occur. Four
alarm output ports are fitted.*7
*7: The Logic/alarm cable, (B-513 option), is needed to connect the
alarm output ports.
Alarm warnings can be sent via E-mail when computer is connected to LAN.
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Can be used with 3 types of power source
Chose from AC supply, DC supply or the optional battery pack which enables 6 hours*8 of continuous
measurement. The power source is automatically switched to the battery pack when the AC power supply is
interupted. If the capacity of the battery pack goes low then measurement is automatically terminated and the
captured data file is closed and protected.
*8: DC power drive cable and battery pack are optional extras. Measuring time by using the battery pack varies on the
conditions.
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Copyright © 2007 GRAPHTEC corporation. All rights reserved.
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