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Graphtec GL 7000 Data Acquisition / Data Logger 112 Input Channel


The GL7000 is a modular data acquisition instrument that provides an array of configuration options to allow virtually any industrial measurement. Its most basic form consists of the GL7000 processing module and an attached Alarm module (included). The addition of one or more analog and/or discrete modules completes the configuration and allows the GL7000 to acquire data either to its own internal memory or directly to an Ethernet- or USB-connected PC. When used as a stand-alone instrument the GL7000 can record data to fast, non-volatile RAM (up to 2,000,000 samples), built-in flash memory, SD memory, or a USB thumb drive (251,000,000 samples each). An optional solid state disk module (SSD) is available that provides up to 64 GB of fast, non-volatile storage space with a maximum file size of 2 GB.

Sample rate and measurement range is defined by the optional analog modules that may be attached to the GL7000 processing unit. Some modules support a sample interval as low as one sample every microsecond and a full scale range of 100V. Others support various special measurement functions like direct-connected thermocouples and RTDs for temperature measurements. Another module supports discrete and pulsed-discrete inputs allowing state, count, and rotational rate measurements to be acquired along with analog data. As many as ten modules may be connected to a GL7000 processing unit. A complete list of modules is included in this datasheet.

The optional touch-screen display is detachable and allows local data logger and data acquisition configuration without a PC. The display also provides real time feedback during data recording in the form of a multi-channel, real time graphical display of acquired data, alarm states, and much more. The display may be attached to the GL7000 processor, or tethered up to 10 meters away from the processor using a standard CAT-5 cable.

The GL7000's data acquisition and data logging characteristics may also be configured by a remote PC connected to the instrument's Ethernet port, or locally using its USB port. Software is provided to allow real time data acquisition, stream-to-disk, playback, and export to other applications like Excel.

Like other data logger and data acquisition products in the GL line, the GL7000 provides extreme triggering flexibility that allows it to adapt to virtually any recording application. Of course, data acquisition operations to a connected PC, or data logging operations in a stand-alone mode may be manually started and stopped. When enabled, the triggering features of the GL7000 automate this process and allow recording processes to be initiated and terminated based upon signal level settings, date and time, and external events. 0-100% pre-trigger information may be stored when recording to the instrument's built-in 2,000,000 storage points (per analog module) RAM memory. Trigger level conditions include settings for edge triggering, level-only tests, and dual level settings to allow inside/outside window triggering. Recording can also be initiated and terminated as Boolean functions of multiple input channels using logical AND/OR combinations.

Finally, up to ten alarm outputs are available with the included Alarm Module. Alarms can be initiated based upon any trigger condition previously described, as well as upon TC burnout, and alarm states may be held or automatically reset when the alarm condition no longer exists.

The GL7000 is a total solution instrument that is easily expanded to meet growing measurement requirements for high- and low speed applications, and stand-alone or PC-connected implementations.


  • Modular construction. A selection of amplifiers tailors the system to address any application.
  • A range of isolated analog amplifiers support measurements from millivolts to hundreds of volts, as well as thermocouple- and RTD-based temperature measurements.
  • A logic and pulse input amplifier module provides 16 channels of discrete and/or pulse inputs for state, counting, and rotational rate recording along with analog data.
  • An included alarm module allows ten alarm outputs that may be triggered by any combination of measured analog or discrete channel levels. The alarm outputs can drive loads up to 50 V and 2 A.
  • Programmable sample intervals address the full spectrum of high- and low-speed measurements, from one sample per microsecond to one sample per hour.
  • Stand-alone or PC-connected operation using included PC side software.
  • Stand-alone recording to built-in RAM memory for speed, removable SD memory, USB thumb drive, and flash memory for non-volatile recordings.
  • Optional 64 GB, high-speed SSD memory for non-volatile recording sessions as fast as 1 MHz per channel and file sizes up to 2 GB.
  • Built-in USB and Ethernet interfaces allow operation as a direct-connected PC-based instrument or a remote Web-based server.
  • Optional, detachable touch-screen allows local instrument configuration and real time display.
  • Flexible pre- and post-triggering options give you complete control over when and how data is recorded.
  • Unique backup feature allows measurements to be automatically backed up over definable intervals to non-volatile SD and SSD memory, or pushed to a local or remote FTP file server.
  • Multiple GL7000 instruments may be daisy-chained to provide expanded and synchronous operation.


Number of Amplifier Modules


Max. 10 modules

Function Modules like the Display Module and the SSD Module are not included in the 10 Modules mentioned above.

The Logic/Pulse amplifier can be set to either logical amplifier or pulse amplifier. The pulse amplifier can only be set for up to 2 modules (16ch/1 module).

External input/output

Start/Stop input, External trigger input, External sampling input, Trigger output.

When using the external input/output function, the I/O cable B-513 (optional) for GL series is required.

Alarm input/output


The Alarm Module is a separate module from the main module.


Ethernet (10BASE-T/100BASE-TX), USB2.0 (compatible with high-speed), standard - included

Internal memory device

Built-in flash memory: approx. 2GB

The built-in RAM is equipped with standard in each Amplifier Module, which can be stored 2,000,000 data. Synchronization function is available in GL-Connection only.

External memory device

SD card (SDHC equivalent, maximum approx. 32GB) slot standard-included

Backup function

Setting Conditions: EEPROM/Clock: Lithium secondary battery

Clock accuracy (23ºC environment)

±0.002% (Lunar equation: approx. 50 seconds)

Synchronization between measurement modules


With Start and Trigger synchronizing functions

When using the synchronizing function, the optional coaxial cable B-559 is required. The synchronizing function is avail- able in the GL-Connection only.

Time base accuracy

±100ppm (23ºC±2ºC)

Usage environment

0 to 45ºC, 5 to 85% R.H.

Withstand voltage

Between AC power and housing: 1500 VAC at 1 minute

Insulation resistance

Between AC power and housing: 500 VDC at 20MΩ or more

Power supply

AC input: 100 to 240 V AC/50 to 60Hz

Power consumption

85 VA

External dimension (approx.) [W × H × D]

Main module: 193 × 141 × 160 mm (not including protruding parts) Alarm Module: 30 × 136 × 145 mm (not including protruding parts)

Weight (approx.)

Main module: 2.2 kg

Alarm Module: 30 × 136 × 145 mm (not including protruding parts)


Vibration proof: Automobile parts Type 1 Class A equivalent

Internal Memory Devices

Memory capacity

Built-in RAM: SD-RAM, 2,000,000 data (equipped with each Amplifier Module)

SSD*1: approx. 64GB (However, one file must be 2GB at the maximum.) Built-in flash memory: Flash memory, approx. 32GB

*Depending on the recording destination there is a limit to the sampling interval.

Memory contents

Built-in RAM: Measured data

SSD*1: Measured data, main module setting Conditions, Screen copy

Built-in flash memory: Measured data, main module setting Conditions, Screen copy SD card: Measured data, main module setting Conditions, Screen copy

PC Interface

Interface types

Ethernet (10BASE-T/100BASE-TX); USB (High-speed)

Software functions

Data transfer to the PC (real-time memory); PC control of the main module

Ethernet functions (10BASE- T/100BASE-TX)


Web server functions: Displays the screen images of main module

FTP server functions: SSD*1, Built-in flash memory, Transfers and deletes files from the SD card memory

FTP client functions: Backup captured data to FTP server

NTP client functions: Time synchronization with the NTP server. DHCP client functions: IP address automatic acquisition

USB functions

USB drive mode: SSD*1, Built-in flash memory, Transfers and deletes of files from the SD card memory

*By flipping the machine slide switch, or turning on the power while pressing the [Start/Stop] key on the Display Module, it goes into USB Drive Mode.

Real-time data transfer speed*2

1 msec/10ch fastest


CISPR 14 - 1
CISPR 14 - 2
CISPR 14 - 2
CISPR 16 - 1
CISPR 16 - 2
CISPR 16 - 3
CISPR 16 - 4
IEC/TR EN 61000 - 1 - 1
IEC/TR EN 61000 - 2 - 1
IEC/TR EN 61000 - 2 - 3
IEC EN 61000 - 3 - 2
IEC EN 61000 - 3 - 4
IEC/TC EN 61000 - 3 - 5
IEC EN 61000 - 4 - 2
IEC EN 61000 - 4 - 3
IEC EN 61000 - 4 - 4
IEC EN 61000 - 4 - 5
IEC EN 61000 - 4 - 6
IEC EN 61000 - 4 - 7
IEC EN 61000 - 4 - 8
IEC EN 61000 - 4 - 9
IEC EN 61000 - 4 - 11
EN 50 081 part 1
EN 50 081 part 2
EN 55 011
EN 55 013
EN 55 014
EN 55 015
EN 55 020
EN 55 022
EN 55 024
EN 50 082 part 1
EN 50 082 part 2
EN 50 093
FCC Part 15
MIL-STD - 461E