Products

GRA002- GRAPHTEC GL820 20 multi-channel logger (up to 200ch)

Data logger with 5.7'' color display, with 20 channels, expandable up to 200 ch,2GB on-board memory, USB/LAN PC I/F. 16-bit

  • Modular system allows expansion up to 200 channels
  • All channels are isolated, each with multifunction input
  • Huge built-in 2GB Flash memory
  • Large easy-to-read 5.7-inch TFT colour LCD
  • PC -friendly, supports USB memory stick, has USB and LAN ports

 

Description

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.


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

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.


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

10ms

20ms

50ms

100ms

200ms

500ms

1s

2s

Channels

1

2

5

10

20

50

100

200

Measurement*2

Voltage

X

X

X

X

X

X

X

X

Temp.

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.

Huge built-in 2GB Flash memory

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.)

Sampling interval

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

*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.

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.

   

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.

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.

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.

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.

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.

The configuration of CSV file can be specified.

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.

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.

In The Box

  • AC Adapter - 100 to 240 V AC, 50/60 Hz (with specified type of power cord) 
  • CD-ROM - User's manual (PDF format), application software
  • Quick Start Guide

Manuals/Guides

Spec Sheets

  • Graphtec GL820 Isolated Input, Multi-Channel logger Midi Logger Data Sheet

Comparison

  • Graphtec GL100 vs GL220 vs GL820 Selection Chart

Other

  • Software
  • GL820 Application Examples

Manufacturer Specs

Item

Description

Number of analog input channels

20 ch, Expandable up to 200 ch by unit of 20 ch

External input output

Input *1

Trigger or Sampling input 1ch, Logic or Pulse input 4 ch

Output *1

Alarm output 4 ch

Sampling interval

10 ms to 1 h (in 10 ms to 50 ms, voltage only and limited channel), External

Time scale

1 sec to 24 hour/division

Trigger function

Action

Start or stop capturing data by the trigger

Source

Start: Off, Input signal, Alarm, External *1, Clock, Week or Time
Stop: Off, Input signal, Alarm, External *1, Clock, Week or Time

Combination

OR or AND condition at the level of signal or edge of signal

Condition

Analog: Rising, Falling, Window-in, Window-out
Pulse: Rising, Falling, Window-in, Window-out
Logic: Rising, Falling

Alarm function

Detecting method

Level or edge of signal

Condition

Analog: Rising, Falling, Window-in, Window-out
Pulse: Rising, Falling, Window-in, Window-out
Logic: Rising, Falling

Alarm output *1

4 channels, Output type: Open collector (pulled-up to 5 V by resistor 10 kΩ)

Pulse input function *1

Accumulating count mode

Accumulating the number of pulses from the start of measurement
Range: 50, 500, 5k, 50k, 500k, 5M, 50M, 500M counts/F.S.

Instant count mode

Counting the number of pulses per sampling interval
Range: 50, 500, 5k, 50k, 500k, 5M, 50M, 500M counts/F.S.

Rotation count (RPM) mode

Counting the number of pulses per second and then it is converted to RPM
Range: 50, 500, 5k, 50k, 500k, 5M, 50M, 500M rpm /F.S.

Max. input pulse rate

50k pulses/sec or 50k counts per sampling interval (16 bits counter is used)

Calculation function

Between channels

Addition, Subtraction, Multiplication and Division for analog input

Statistical

Select two calculations from Average, Peak, Max., Min., RMS

Search function

Search for analog signal levels, values of logic or pulse or alarm point in captured data

Interface to PC

Ethernet (10 BASE-T/100 BASE-TX), USB (Full speed)

Storage device

Built-in Flash memory (2 giga-bytes), USB memory device *2

Data saving function

Captured data

Direct saving of data into built-in Flash memory or USB memory device

Others

Setting conditions, Screen copy

Ring capturing mode

Function: ON/OFF, Number of capturing point: 1000 to 2000000 (size of the capture data will be limited to 1/3 of available memory when in Ring Mode)

USB memory device emulation

USB Memory emulation mode (Transfer or delete the file in built-in memory)

Engineering scale function

Set based on the reference point of the scaled output and input signal for each channel (Voltage measurement: four points are necessary to scale the output, Temperature measurement: two points are necessary to scale the output).

Display

Size

5.7 inch TFT color LCD (VGA: 640 x 480 dots)

Formats

Waveform + Digital, Waveform only, Calculation + Digital, Expanded digital

Operating environment

0 °C to 45°C, 5 % to 85 % RH
(When operating with battery pack 0 °C to 40 °C, charging battery 15 °C to 35°C)

Power source

AC adapter (100 V to 240 V, 50/60 Hz)
DC power (8.5 V to 24 V DC, max. 26.4 V)*3, Battery pack*3

Power consumption

32VA or lower
(When operating with AC adapter, displaying LCD, charging battery pack)

External dimensions (WxDxH)

approx. 232 x 152 x 50 mm

Weight

approx. 900 g (Excluding AC adapter and battery pack)

 


  Software specifications
 

Item

Description

Supported OS

Windows XP / Vista / 7 (32 bits and 64 bits edition)

Functions

Control GL820, Real-time data capture, Replay data, Data format conversion

GL820 setting control

Input settings, Memory settings, Alarm settings, Trigger settings

Controlled units

Up to 10 units or 500 channels

Captured data

Transfers data in real-time (in binary or CSV format), saved data in GL820 or the USB memory

Displayed information

Analog waveforms, Logic waveforms, Pulse waveforms, Digital values

Display modes

Y-T waveforms, Digital values, Report, X-Y graph (specified period of data, data reply only)

Warning functions

Sends E-mail to the specified address when the alarms occur

File format conversions

Converts the specified period data or all data to the CSV format (thinning function is available)

Report functions

Creates the daily or monthly report automatically (can also export directly to Excel)

 


  GL820 Input Terminal Unit Specifications
 

Item

Description

Quantity

AC adapter

100 V to 240 V AC, 50/60 Hz (with specified type of power cord)

1set

CD-ROM

User's manual (PDF format), Application software

1piece

Quick Start Guide

 

1copy

 


  GL820 Input Terminal Unit Specifications
 

Type of input terminal

Screw terminal (M3 screw)

Method

Scans by the photo-MOS-relay, all channels isolated, balanced input

Measurment Range

Voltage

20, 50, 100, 200, 500 mV, 1, 2, 5, 10, 20, 50V, 1-5 V F.S

Temperature

Thermocouple : K, J, E, T, R, S, B, N, W (WRe5-26)
RTD : Pt100, JPt100, Pt1000 (IEC751

Humidity

0 to 100 % (using humidity sensor (B-530 optional), power is supplied to only one sensor)

Input filter

Off, 2, 5, 10, 20, 40 (Moving average)

Measurement accuracy *4

Voltage

± 0.1 % of F.S.

Temperature

Thermocouple

Measurement range

Accuracy

 

R/S

0 ≤ TS ≤100 °C

± 5.2 °C

 

100 < TS ≤300 °C

± 3.0 °C

 

R : 300 < TS ≤1600 °C

± (0.05 % of rdg + 2.0 °C)

 

S : 300 < TS ≤1760 °C

± (0.05 % of rdg + 2.0 °C)

 

B

400 ≤ TS ≤ 600 °C

± 3.5 °C

 

600 < TS ≤ 1820 °C

± (0.05 % of rdg + 2.0 °C)

 

K

-200 ≤ TS ≤-100 °C

± (0.05 % of rdg + 2.0 °C)

 

-100 < TS ≤1370 °C

± (0.05 % of rdg + 1.0 °C)

 

E

-200 ≤ TS ≤-100 °C

± (0.05 % of rdg + 2.0 °C)

 

-100 < TS ≤820 °C

± (0.05 % of rdg + 1.0 °C)

 

T

-200 ≤ TS ≤ -100 °C

± (0.1 % of rdg + 1.5 °C)

 

-100 < TS ≤400 °C

± (0.1 % of rdg + 0.5 °C)

 

J

-200 ≤ TS ≤ -100 °C

± 2.7 °C

 

-100 ≤ TS ≤100 °C

± 1.7 °C

 

100 < TS ≤1100 °C

± (0.05 % of rdg + 1.0 °C)

 

N

0 ≤ TS ≤1300 °C

± (0.1 % of rdg + 1.0 °C)

 

W

0 ≤ TS ≤2315 °C

± (0.1 % of rdg + 1.5 °C)

 

Reference Junction Compensation (R.J.C.): ±0.5 °C

 

RTD

Pt100

-200 to 850 °C (FS = 1050 °C)

± 1.0 °C

 

JPt100

-200 to 500 °C (FS = 700 °C)

± 0.8 °C

 

Pt1000

-200 to 500 °C (FS = 700 °C)

± 0.8 °C

 

A/D converter

16 bit (effective resolution: 1/40000 of measuring full range)

 

Maximum input voltage

Between +/- terminal

60 Vp-p

 

Between channels

60 Vp-p

 

Between channels / GND

60 Vp-p

 

Maximum input voltage

Between channels

350 Vp-p (1minute)

 

Between channels(-) / GND

350 Vp-p (1minute)

 

 

*1 Logic alarm cable (B-513) option is required. Input signal of External sampling, Logic, Pulse; Maximum voltage: 24 V, Threshold: approx. 2.5 V, Hysteresis: approx. 0.5 V

*2 Size of the USB memory device is unlimited. Maximum file size is limited to 2 GB

*3 DC drive cable (B-514) or battery pack (B-517) option is required.

Subject to the following conditions;
* Room Temperature is 23 °C±5 °C
* When 30 minutes or more have elapsed after power was turned on.
* Filter is set to 10
* Sampling rate is set to 1s with 20 channels.
* GND terminal is connected to ground.

Tech Specs

Dataloggers / Data Acquisition/Data Recorders Template

Type (Recorders)

Data Logger

Style (Recorders)

Behind Panel / DIN Rail Mount, Bench / Portable

# Channels Expanded plus Logic (Recorders)

200 EA 

# Channels Base Unit (Recorders)

20 EA

Display (Recorders)

Built-in, Included w/ Base Unit

# Logic / Digital Channels (Recorders)

4

Sampling Interval (Controllers/Recorders)

10 ms

Sampling Frequency (Recorders)

100 S/s (0.0001 MS/S)

Input Types (Controllers/Recorders)

Digital / Logic / On-Off, Frequency / Pulse, T/C - RTD, Voltage 

Output Types (Controllers/Recorders)

Logic / SSR 

Bits

16

Power Source

AC Line, Battery, DC Line 

Screen Size

5.7 IN

Special Functions (Recorders)

External Trigger, Logic / Ladder / Math, PC Software Available, Software / Visible Alarms 

Data storage

Yes 

# Data Points

2000000

Isolated Inputs (Recorders)

Yes

Test Equipment General Attributes

Unique Features

Compact Data Acquisition Data LOGGER with modern conveniences such as Ethernet and USB 2.0 interfaces, along with a USB flash memory port. Expandable to 200 channels

Warranty

12 MONTHS (1 YEARS)

Safety Approval

CE

Interfaces I/O

LAN / Ethernet, Analog Input , USB

Storage

Internal Memory, USB Flash Drive

Product Weight

2.0 LBS

Product Height

5 IN

Product Length

23.2 IN

Product Width

15.2 IN

Shipping Weight

4.0 LBS

Data Logging

Yes

ECCN Number

EAR99

Calibration Included

Factory Calibration

Battery Type

Li-ion

Power Supply Voltage

120V/220V Universal

Country of Origin

Japan

Shipping Height

16.5 CM (6.50 IN)

Shipping Length

32.5 CM (12.80 IN)

Shipping Width

24.5 CM (9.65 IN)

 

 

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