Graphtec GL820

Product Description

Discontinued model.

New model here

• Type: General purpose data logger / Paperless recorder.
• Channels: 20 - expandable to 200.
• Inputs: Voltage, Current*, Temperature, Humidity and Logic I/O.
• Speed: 10ms to 1hr.
• Resolution: 16bit.
• Data Storage: 2GB internal memory or USB device.
• PC Connection: Ethernet & USB.
• Data transfer: USB memory device or direct to PC.
• Power: Internal Battery or External 12~24 volts DC.
• Software: Software included.

GL820 Technical Specifications. Download

GL820 Quick Start Guide (10.1 MB) Download

GL820 Users Manual (29.8 MB) Download

GL820 Software Users Manual (7.2 MB) Download

GL820 Application Software Download

Up to 200 isolated channels with multifunction input

The GL820 is fitted with 20 channels as standard but can be expanded from 20 to 200 channels with the optional B-537 and B-538 expansion modules. A total of 500 channels can be monitored via the GL820 software and up to ten GL820 units can be networked as a complete data logging system.

Built-in 2GB flash memory for reliable measurements

The 2GB flash memory used for the built-in memory device ensures that data is retained even if the power supply is interrupted. This means momentary disruptions in the AC power supply or accidentally switching off power will not result in data loss.Two ports are provided on the GL820, one for the plug-in USB memory device and one for connecting to a PC.

Direct record to a USB memory device

Commercially available USB memory devices may be used for direct capture of data.

In addition, the GL820 can be connect directly to a PC via the USB cable which allows data to be transferred or measurements to be stored directly to the PC.

* The sampling rate is limited by the number of channels in use. (10ms: 1ch, 50ms: 5ch, 100ms: 10ch)

The multifunction GL820 device can record voltages, temperature, current*, humidity, pulse and logic signals. *External shunt resistor required.

Voltage: 20 mV to 50 V

Current: 4-20 mA process signals or larger currents with external shunts.

Thermocouples: K, J, E, T, R, S, B, N, W, (WRe5-26)

RTDs: Pt100, JPt100, Pt1000 (IEC751)

Humidity: 0 to 100% (The B-530 option is required)

Vivid 14.5cm(5.7") TFT colour LCD...

The bright, easy-to-read 14.5cm(5.7") TFT colour LCD monitor (VGA: 640 x 480 dots) makes it even easier to review measurement parameter settings, measured waveforms, and digital values.

All the GL820's functions can be accessed through the navigation cluster and LCD screen. Single touch buttons for such tasks as display mode, setup and logging start/stop negate the need for complicated menu trees.

9 hours of continuous battery operations

Optional battery packs are available for use in areas where AC power is unavailable or subject to interruption. The battery packs enables 9 hours* of continuous measurement and provides a remaining battery capacity display function. * Varies with measurement conditions.

Free Bundled PC software

The GL820 is bundled with PC application software that enables data logging directly to a PC. In addition to waveform monitoring, this software provides other useful functions such as direct writing of data to an Excel file and report creation. The software also provides a Help display function for enhanced usability.

Diverse measurement screens

Various display screens can be selected: Y-T, X-Y, Digital, Meter, and Report.

Multi-channel measurement

One GL820 data logger enables measurement on up to 200 channels at the device itself, and up to 500 channels when PC measurement has been specified. In addition, since the channels can be assigned to four display groups, they can be arranged according to the input type.

Convenient functions

A function that displays the logic alarm status during measurement and a password protection function are built in. Other convenient functions are the display of a CSV file batch conversion screen after captured data has been replayed and various data search functions.

Software Features

• Configuration and channel setup via USB or Ethernet Real time data storage to hard disk.
• Stored data import from GL820.
• Email notification of errors and alarms.
• Available measurement modes: Y-T and X-Y.
• Separate screens are available for each of the settings.
• Direct Excel transfer can be enabled as a report function.

Remote monitoring via Ethernet; Web server/FTP functions

Your PC’s Firefox, Opera or Internet Explorer applications can be used for settings, control, data monitoring and data acquisition.

The Web server function enables the acquisition of setting control data.

The FTP function enables the acquisition of data stored to the GL820.

GL820 Main Features

• 20 input channels as standard, expandable to 200 channels.
• Isolated multifunction channels for Voltage, Temperature or Humidity.
• Inputs: Voltage (20mv to 50V), Thermocouples (K,E,J,T,N,R,S,T,B,W) and 4-20mA signals via external shunt resistor. Optional Graphtec Humidity sensor is available.
• Four pulse inputs and one trigger input.
• 16-bit ADC resolution.
• 14.5cm (5.7") colour LCD display (VGA: 640 x 480 dots).
• Waveform and text display modes.
• Easy-to-use keypad menu system.
• Single open-collector alarm output.
• Range of trigger functions.
• Real-time statistical calculation.
• Built-in 2GB flash memory.
• 2 x USB 2.0 interfaces - one for USB Memory stick and one for PC connection.
• Ethernet (TCP/IP) for PC connection and WEB/FTP server.
• User replaceable batteries for up to 9 hours of operation.
• Scan speed - Maximum.
  • 10 milli Seconds for 1 channel.
  • 20 milli Seconds for 2 channels.
  • 50 milli Seconds for 5 channels.
  • 100 milli Seconds for 1-10 channels.
  • 200 milli Seconds for 11-20 channels.
  • 500 milli Seconds for 21-50 channels.
  • 1 Second for 51-100 channels.
  • 2 Seconds for 101-200 channels

The GL820 includes the following:

• GL820 Quick Start Guide.
• midi LOGGER Software.
• Power Supply - 24Volts DC.
• USB Cable.