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Graphtec GL820 Isolated Input, Multi-Channel Midi Logger
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Item Number: GL820
Manufacturer: Graphtec Corp
Part Number: GL820
* Whole number only
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Graphtec GL820 Isolated Input, Multi-Channel Midi Logger
Huge 2GB Flash Memory, modular system allows expansion up to 200 channels.
Features
- 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
   Technical Specifications
GL820 Main Unit Specifications
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item
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Description
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Number of analog input channels
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20 ch, Expandable up to 200 ch by unit of 20 ch
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External input output
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Input *1
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Trigger or Sampling input 1ch, Logic or Pulse input 4 ch
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Output *1
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Alarm output 4 ch
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Sampling interval
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10 ms to 1 h (in 10 ms to 50 ms, voltage only and limited channel), External
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Time scale
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1 sec to 24 hour/division
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Trigger function
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Action
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Start or stop capturing data by the trigger
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Source
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Start: Off, Input signal, Alarm, External *1, Clock, Week or Time
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Stop: Off, Input signal, Alarm, External *1, Clock, Week or Time
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Combination
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OR or AND condition at the level of signal or edge of signal
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Condition
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Analog: Rising, Falling, Window-in, Window-out
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Pulse: Rising, Falling, Window-in, Window-out
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Logic: Rising, Falling
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Alarm function
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Detecting method
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Level or edge of signal
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Condition
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Analog: Rising, Falling, Window-in, Window-out
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Pulse: Rising, Falling, Window-in, Window-out
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Logic: Rising, Falling
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Alarm output *1
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4 channels, Output type: Open collector (pulled-up to 5 V by resistor 10 kΩ)
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Pulse input function *1
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Accumulating count mode
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Accumulating the number of pulses from the start of measurement
Range: 50, 500, 5k, 50k, 500k, 5M, 50M, 500M counts/F.S.
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Instant count mode
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Counting the number of pulses per sampling interval
Range: 50, 500, 5k, 50k, 500k, 5M, 50M, 500M counts/F.S.
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Rotation count (RPM) mode
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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.
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Max. input pulse rate
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50k pulses/sec or 50k counts per sampling interval (16 bits counter is used)
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Calculation function
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Between channels
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Addition, Subtraction, Multiplication and Division for analog input
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Statistical
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Select two calculations from Average, Peak, Max., Min., RMS
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Search function
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Search for analog signal levels, values of logic or pulse or alarm point in captured data
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Interface to PC
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Ethernet (10 BASE-T/100 BASE-TX), USB (Full speed)
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Storage device
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Built-in Flash memory (2 giga-bytes), USB memory device *2
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Data saving function
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Captured data
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Direct saving of data into built-in Flash memory or USB memory device
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Others
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Setting conditions, Screen copy
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Ring capturing mode
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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)
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USB memory device emulation
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USB Memory emulation mode (Transfer or delete the file in built-in memory)
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Engineering scale function
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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).
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Display
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Size
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5.7 inch TFT color LCD (VGA: 640 x 480 dots)
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Formats
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Waveform + Digital, Waveform only, Calculation + Digital, Expanded digital
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Operating environment
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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)
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Power source
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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
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Power consumption
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32VA or lower
(When operating with AC adapter, displaying LCD, charging battery pack)
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External dimensions (WxDxH)
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approx. 232 x 152 x 50 mm
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Weight
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approx. 900 g (Excluding AC adapter and battery pack)
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Software specifications
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Item
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Description
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Supported OS
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Windows XP / Vista / 7 (32 bits and 64 bits edition)
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Functions
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Control GL820, Real-time data capture, Replay data, Data format conversion
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GL820 setting control
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Input settings, Memory settings, Alarm settings, Trigger settings
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Controlled units
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Up to 10 units or 500 channels
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Captured data
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Transfers data in real-time (in binary or CSV format), saved data in GL820 or the USB memory
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Displayed information
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Analog waveforms, Logic waveforms, Pulse waveforms, Digital values
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Display modes
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Y-T waveforms, Digital values, Report, X-Y graph (specified period of data, data reply only)
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Warning functions
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Sends E-mail to the specified address when the alarms occur
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File format conversions
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Converts the specified period data or all data to the CSV format (thinning function is available)
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Report functions
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Creates the daily or monthly report automatically (can also export directly to Excel)
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Standard accessories
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Item
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Description
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Quantity
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AC adapter
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100 V to 240 V AC, 50/60 Hz (with specified type of power cord)
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1set
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CD-ROM
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User's manual (PDF format), Application software
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1piece
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Quick Start Guide
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1copy
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Analog input specifications
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Item
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Description
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Type of input terminal
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Screw terminal (M3 screw)
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input method
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Scans by the photo-MOS-relay, all channels isolated, balanced input
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Measurement range
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Voltage Temperature
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20, 50, 100, 200, 500 mV, 1, 2, 5, 10, 20, 50 V, and 1-5 V /F.S.
Thermocouple: K, J, E, T, R, S, N, and W (WRe5-26)
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Resistance Temperature Detectors (RTDs): Pt100, JPt100 (JIS), Pt1000 (IEC751)
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Humidity
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0 to 100%
(using humidity sensor (B-530 optional), power is supplied to only one sensor)
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Filter
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Off, 2, 5, 10, 20, 40 (moving average in selected number)
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Measurement accuracy *4
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Voltage
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0.1% of F.S.
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Temperature
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Thermocouple
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Measurement range
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Measurement accuracy
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R/S
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0 °C ≦ TS ≦ 100 °C
100 °C ≦ TS ≦ 300 °C
R: 300 °C ≦ TS ≦ 1600 °C
S: 300 °C ≦ TS ≦ 1760 °C
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±5.2 °C
±3.0 °C
±(0.05 % of reading +2.0 °C)
±(0.05 % of reading +2.0 °C)
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B
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400 °C ≦ TS ≦ 600 °C
600 °C ≦ TS ≦ 1820 °C
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±3.5 °C
±(0.05% of reading +2.0 °C)
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K
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-200 °C ≦ TS ≦ -100 °C
-100 °C ≦ TS ≦ 1370 °C
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±(0.05 % of reading +2.0 °C)
±(0.05 % of reading +1.0 °C)
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E
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-200 °C ≦ TS ≦ -100 °C
-100 °C ≦ TS ≦ 800 °C
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±(0.05 % of reading +2.0 °C)
±(0.05 % of reading +1.0 °C)
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T
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-200 °C ≦ TS ≦ -100 °C
-100 °C ≦ TS ≦ 400 °C
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±(0.1 % of reading +1.5 °C)
±(0.1 % of reading +0.5 °C)
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J
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-200 °C ≦ TS ≦ -100 °C
-100 °C ≦ TS ≦ 100 °C
100 °C ≦ TS ≦ 1100 °C
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±2.7 °C
±1.7 °C
±(0.05 % of reading +1.0 °C)
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N
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0 °C ≦ TS ≦ 1300 °C
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±(0.1 % of reading +1.0 °C)
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W
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0 °C ≦ TS ≦ 2000 °C
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±(0.1 % of reading +1.5 °C)
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Reference Junction Compensation (R.J.C.): ±0.5 °C
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RTD
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Measurement range
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Measurement accuracy
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Pt100
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-200 °C to 850 °C (FS=1050 °C)
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±1.0 °C
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JPt100
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-200 °C to 500 °C (FS=700 °C)
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±0.8 °C
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Pt1000
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-200 °C to 500 °C (FS=700 °C)
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±0.8 °C
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A/D Converter
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ΣΔtype, 16 bits (effective resolution: 1/40000 of measuring full range)
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Maximum input voltage
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Between +/- terminal
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60 Vp-p
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Between channels
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60 Vp-p
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Between channels / GND
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60 Vp-p
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Withstand voltage
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Between channels
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350 Vp-p (1minute)
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Between channels(-) / GND
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350 Vp-p (1minute)
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*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.
*4 Subject to the following conditions;
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Room Temperature is 23 °C±5 °C
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When 30 minutes or more have elapsed after power was turned on.
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Filter is set to 10
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Sampling rate is set to 1s with 20 channels.
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GND terminal is connected to ground.
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Product Reviews
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