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MSR175 Shock Transportation Data Logger
Kenny Laidlaw
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The MSR175 shock transportation data logger is the newest miniature logger from MSR.  The MSR175 more >
Graphtec GL2000 High Speed Data Logger

Graphtec GL2000 High Speed Data Logger

The GL2000 is a 4 channel standalone data logger suitable for high voltage and true RMS monitoring. The logger has 4 channels capable of logging AC voltages up to 1000V (CAT III up to 600vAC). Analogue inputs are also suitable for use with K, J, E, T, R, S, B, N and W Type Thermocouples. The GL2000 comes with a wide 7" wide TFT colour LCD with waveform or digital options. 4 individual A/D converters allow all 4 channels to be logged at 1µs to the internal memory and at 100kHz to an external memory, USB or SD memory card. The Trigger function allows the unit to wait for a specific input value to start and stop logging, limiting high speed logging to capture specific data for fault diagnosis.


High speed 1 MS/s simultaneous sampling with isolated input

GL2000 is equipped with an isolated input mechanism to protect signals from interference caused by noise from other channels. 16-bit A/D converter adopted to achieve hi-speed and hi-resolution measurement.


Simultaneous sampling

GL2000 utilizes simultaneous sampling to eliminate slowdown in sampling rate by using multiple A/D converters in simultaneous sampling method. Four individual A/D converters in each channel sustains the maximum sampling speed for all four channels to measure high speed rapid voltage fluctuation and multi-channel vibration measurement.

Sampling interval: 1 µs to 1 min (in steps of 1, 2, 5)

External sampling function

Sampling of the logger is performed in sync with an external device using an external signal input.

Maximum input frequency: 100 kHz

* B-513 Input/Output cable for GL is required.


Multi-function input with CAT III measurement category

Voltage, temperature, humidity, logic and pulse measurements can all be taken simultaneously in high speed.

Multifunction Input

CAT III 600 V is compatible with measuring power supply circuit in an equipment that captures power directly from the distribution panel.

CAT III Diagram

Measures abnormalities in a repeated waveform by effectively measuring the corresponding RMS value

  • In 1000 Vrms range, Crest Factor is up to 1.41
    * Maximum rated safety voltage: 600 V rms, Peak voltage: 850V
  • In other range, Crest Factor is up to 2.0

RMS Values

Scaling (Engineering unit) function

Measured voltage value can be converted to a specified engineering unit. The value can be displayed with the physical measurement value of the sensor and be saved into the data file with the converted values.

Scaling Function

Calculation function between channels

Four arithmetic operations (Addition, subtraction, multiplication and division) are available using two analog input channels.
* Data can be saved only in GBD file format.
Calculation Example

Trigger function

The trigger in this unit has multiple functions including level trigger of input signal value for each channel.
Trigger action Start or stop capturing data by triggering Trigger source Off, Measured signal level, Alarm, External, Scheduled time, Scheduled day, Elapsed time
* When trigger is used for starting action, level of measured signal can be set for each channel. Threshold

Analog input:

High or Rising, Low or Falling, Window-in, Window-out

Logic input:

H or L (4-channel signal pattern)

Pulse input:

High or Rising, Low or Falling, Window-in, Window-out


Level OR, Level AND, Edge OR, Edge AND

Alarm function & signal output

Threshold of an alarm can be set for each channel. When an alarm occurs, notification is sent by following methods.
Alarm threshold

Analog input:

High, Low, Window-in, Window-out

Logic input:

H or L (signal in each channel)

Pulse input:

High or Rising, Low or Falling, Window-in, Window-out
When alarm is detected

  • Display to screen (Digital value of alarm's origin channel is displayed in red)
  • Save alarm information to measurement data file
  • Output alarm signal
    Number of channel:

    4 channels (Output channel can be arranged to each source channel in OR condition.)

    Signal type:

    Open collector (pull-up to 5 V with 10 kΩ resistor), maximum load is the 24 V and 100 mA.
    * Requires Input/Output cable for GL series (B-513 Option).

Large Easy-to-read 7-inch LCD

Monitor data in multiple methods in addition to digital value display and full waveform display screen.

Y-T waveform monitor screen

Displays data with analog waveform and digital value. Screen can also be split into 1, 2, 4 or 8 zones to display the channels in different zones.

Y-T Waveform


Digital monitor screen

Displays current data in digital value and results of real time statistical calculation. (Function: Maximum, Minimum, Peak-to-peak, and Average)
When displays only current data, it can be shown in 1, 2, 4 or 8 zones.
Digital Screen

Past waveform monitor screen

Display the past part of the data while capturing data. Execute without stopping measurement and also scroll past data. Data screen can be switched with past and current.
Past Waveform

XY graph monitor screen

Emulates the classic XY chart recorder. Also supports features for pen up/down and position movement.

XY Graph


Quick and Easy Set Up Process

Simple operation with cursor and enter keys, and menu-driven operation with six pre-set menu screens: AMP, DATA, DISP, TRIG, I/F (Interface) and OTHER.
Setup Process

Other helpful functions

Delivers reliable measurements out at a location with unstable power supply.

Equipped with three types of options for power source, AC adapter, DC input, and battery pack. With a battery pack, GL2000 runs continuously for approximately 3 hours. If an AC power failure occurs, it will automatically switch from the AC adapter to the battery pack. Additionally, when the battery pack is drained, measurements will automatically stop after saving the data file preserving the accumulated data. (Requires two battery packs (B-569 option) installed.)

Instrument is in compliance with JIS Vibration Test Method for Automobile Type 1 Class A. (Vibration durability test: 5 m/s²)


Supports large built-in RAM (4MS/ch) and built-in Flash (4 GB)

Built-in RAMLong term recording is made possible with 4 M samples/ch built-in RAM and 4 GB built-in Flash memory. It supports both USB Flash memory and SD Card memory to be used as external storage devices for recorded data for certain sampling intervals.

Approximate recording time

GL2000 Recording Time

* When using 8GB or larger memory, the size of data file will be up to 4GB. The Relay mode enables extended recording time.

Convenient Data Recording Functions


Memory division function
Auto Save Function

Built-in RAM can be divided into 1, 2, 4, or 8 blocks with multiple high-speed recording measurement using the trigger function.
Memory Division Function

Ring mode

Search Function

Saves most recent data of specified number after recording stops.Number of capturing data 1000 to 10000000 data
* When using built-in RAM, 10 to 4000000 data

Ring Mode







Relay mode
Data Backup

Save data to multiple files with specified capturing time or file size (up to 4 GB) until recording data is stopped.

Relay Mode



Save & replay data in CSV format

Data Backup

Captured data can be saved with GBD (binary) and CSV (text) format. CSV format file can be played on GL2000 and opened with spreadsheet software.

Save & Replay Data

Data backup and hot swaps

The recorded data can automatically save to other storage device at specified regular intervals during data capture. (Maximum sampling speed: 1 kS/s (interval 1 ms) with GBD format, 100 S/s (interval 10 ms) with CSV format)
When the backup destination is set to a SD Flash memory card or a USB Flash memory device, memory device can be exchanged before the memory capacity becomes full using the key operation.

Auto save function
Auto Save Function

Recorded data saved in a built-in RAM is automatically copied as data file to a built-in Flash memory, SD Flash memory card or USB Flash memory with auto save function. An SD Flash memory card or a USB Flash memory can be used as a backup location when using the built-in RAM. The process will prevent losing any data captured in the built-in RAM by any overwrite or power cycles.

Search function
Search Function

The search function can locate a specific value within the captured data as well as finding abnormal values within data of a long-recorded file.
Search content
Search for analog signal levels, logic signal pattern, pulse signal levels or alarm point in captured data.

Analog signal channel:

Signal levels in each channel
・Search mode: raising, falling, window-in, window-out

Logic signal channel:

Signal level (H or L) in each channel

Pulse signal channel:

Signal levels in each channel
・Search mode: raising, falling, window-in, window-out


Alarm detected point on selected alarm signal output channel

Equipped with Ethernet (LAN) and USB interface to communicate with PC

GL2000 Side View

Convenient function with LAN (Ethernet interface) capability

When GL2000 is connected to LAN using the Ethernet interface, networked computer can monitor real-time measured value, transfer files, and change set ups without using application software (GL980_2000-APS software).

Web server function

GL2000 can be controlled externally via a network on the WEB browser, which also supports real-time monitoring and ability to use the menu buttons.

Web Server Function

FTP server function

File in available storage device on GL2000 except built-in RAM can be transferred or deleted from the PC.

FTP Server Function

NTP client function

The clock on the GL2000 periodically synchronises with the NTP server.

NTP Client Function

Email sending function

Send information when alarm occurs, or when battery is low, or when communication speed drops, or to notify when the space becomes limited on the storage device by an e-mail to specified address. Information may also be sent periodically by settings.

Email Sending Function


USB Drive Mode to Easily Transfer Files to PC

The USB drive mode function allows simple data transfer to the PC from built-in Flash memory and SD Flash memory card which acts as USB Flash drive on GL2000. It also allows for adding, removing, and deleting files from storage device on the GL2000 from PC file browsing explorer.

USB Drive Mode

The GL2000 data logger is available for sale. If you would be interested in purchasing a new unit, please visit the GL2000 Product Page