Graphtec

Graphtec's loggers are designed to perform a wide variety of tests and measurements from temperature, strain, pressure, voltage, and current logging to hundreds of multichannel measurements.The loggers have functions such as slow sampling and oscilloscope functions.

Contact

Product manager

Yrjö Inkinen
+358 400 211 997

Graphtec's Easy-to-use, Multifunction & Multichannel dataloggers for professional use!

Graphtec's loggers are designed to perform a wide variety of tests and measurements from temperature, strain, pressure, voltage, and current logging to hundreds of multichannel measurements.The loggers have functions such as slow sampling and oscilloscope functions.

Graphtec was founded in 1949 in The company designs and manufacturers multifunction dataloggers for professional use also suitable for industrial use.

Graphtecin loggers key features:
  • Multichannel & multifunction
  • Capability of logging different data/measurements
  • Fast and slow sampling
  • Immunity to external EMC
  • Input channel isolation for large voltage differences 
  • Built-in memory for stand-alone use
  • PC interface (USB, LAN etc.), Wireless connection for data transfer (WLAN)
  • Easy to use PC Software
  • Good Display

Contact us!

You can order all Graphtec's dataloggers from Yleiselektroniikka. Yleiselektroniikka is Graphtec's instruments' official distributor in Finland. Yleiselektroniikka's product manager help you to choose the right product for your application. You can also request for demo products or book a meeting to find out more about the dataloggers and their functionalities. All Graphtec product purchases include product training that ensure you'll get most out of the product.

Graphtec Logger Product Chart

Compare loggers' key features from the product chart below. Find out more technical product infomation from the product pages. From the product page you can also download product specific brochures and datasheets.

Picture Instrument Measurements / Sensor examples Channels Sample range (speed) Functionalities Interface Control

Graphtec GL100 WL

GL100-N Petit Logger, Display, RAM, microSD, USB.
GL100-WL (with WLAN)
GL 100-WL-TH (with WLAN + temperature & humidity sensor)
20 mV ... 50 V, temperature, humidity, acceleration, CO2, Lux, UV, current 1-8 0.5 s - 60 min (2 S/s) One or more GL100 logger can log as seperate unit or connected to network. Clear display, Battery or USB Charger. USB, WiFi Works as seperate unit, PC Software, Smartphone Control

Graphtec GL240

GL240, 10 Channel Datalogger, SD memory card, 4.3 inch TFT Color Display ±20 mV ... ±100 V, thermopairs, humidity sensor, other sensors 10 10 ms - 1 h, (100 S/s) Cost-efficient and multifunctionint datalogger. Clear color display, WLAN option 16 bit A/D USB, WiFi Works as seperate unit, PC software, smartphone connection, FTP, HTTP

Graphtec GL840-M

GL840-M, 20 Channel Datalogger, extendable. The housing has suplementary channels 10/4. SD memory card, 7 inch TFT Display ±20 mV ... ±100 V, thermopairs Pt100, JPt100, Pt1000, touch sensor, other sensors. Compatible with GL100 special sensors 20-200 10 ms - 1 h, (100 S/s) Large color display, Easy-to use. Has suplementary channels in the housing, GL100 sensors (2-8 ouputs) and logic/pulse (4) alarm (4). Extendable 200 channels. 16 bit A/D Ethernet, USB, WiFi Works as seperate unit, PC software, smartphone connection, FTP, HTTP

Graphtec GL840-WV

GL840-WV 20 Channel datalogger, extendable. Isolated 2300 Vrms AC. The housing has suplementary channels 10/4. SD memory card, 7 inch TFT display ±20 mV ... ±100 V, thermopairs, Pt100, JPt100, Pt1000, humidity sensors, other sensors. Compatible with GL100 special sensors. 20-200 10 ms - 1 h, (100 S/s) Large color display, Easy to use.Housing has suplementary channels.GL100 special sensors (2-8 outputs) and logic/pulse (4), alarm (4). Extendable 200 channels. 16 bit A/D Ethernet, USB, WiFi Works as seperate unit, PC software, smartphone connection, FTP, HTTP

Graphtec GL900-4

GL900-4 Fast logger, 4 isolated channels, USB memory, 5.7 inch TFT color display ±20 mV ... ±500 V, thermopairs, humidity sensors, other sensors 4 10 µs - 1 min, (100 kS/s) X-Y Display, FFT, timer, 500V input, isolated 1 kV, 16 bit A/D Ethernet, USB Works as seperate unit, PC software, FTP, HTTP, Webserver

Graphtec GL900-8

GL900-8 Fast logger, 8 isolated channels, USB memory, 5.7 inch TFT color display ±20 mV ... ±500 V, thermopairs, humidity sensor, other sensors 8 10 µs - 1 min, (100 kS/s) X-Y Display, FFT, timer, 500V input, isolated 1 kV, 16 bit A/D Ethernet, USB Works as seperate unit, PC software, FTP, HTTP, Webserver

Graphtec GL7000

GL7000 Data Platform Modular Multilogger, oscilloscope, function generator, SD memory card, Flash 2GB, Optional 5.7 inch TFT color touch display ±20 mV ... ±1000 V, thermopairs, Pt100, JPt100, Pt1000, humidity sensor, acceleration/vibration sensors, TEDS, current sensots (AC/DC), other sensots and voice recording*** 2-112 1 µs - 1 h (1 MS/s) Most versatile and extendable logger. Isolated max 2300 Vrms.DC .. 200 kHz. Versatile triggers, mathematic functions, FFT, SSD module 64 GB + module RAM 2MB, 16 bit A/D Ethernet, USB Works as seperate unit, PC software, FTP, HTTP, Webserver

* Different dataloggers can be synchronized with PC software or with GL Connection. This extends the number of logging channels (can be even more than thousand).
***  Microphone or dB-device output can be connected to GL7000 modules for 16-bitt download (recording),depending on sensor qualities. Infrared measurements of wind turbines; measurement of sound and air pressure in different lifts.

Graphtec GL100 Compact and Easy-to-use Loggers

Graphtec GL100

Graphtec Petit Logger GL100 is a handy small logger that can be set to log and collect for example warehouse or laboratory temperature and humidity. GL100-WL is equipped with wireless WLAN connection, that enables you to monitor and control the logging in realtime with a smartphone application (Android, iOS).

GL100-N and GL100-WL (WLAN) key features:

  • Versatile measurements, suitable for special applications
  • Compatible with Special sensors and Sensor Combos
  • USB interface
  • LCD display
  • Built-in memory (RAM 4.9 MB) and microSD memory card (max 32 GB)
  • Transferring the logged data in realtime or after logging with PC software or USB interface
  • Transferring the measured data wirelessly, remote control with smartphone application (Android, iOS) ** Note! Only with GL100-WL-logger,  that has the wireless WLAN connection
GL-100 Series Product Examples:
GL100 loggers can be connected with special sensors | Check also the GL100 Combos

Graphtec GL100 loggers

GL100 datalogger can be connected with different adapters and sensors ans special sensors such as temperature, humidity, acceleration, carbon dioxide (CO2), Illuminance, UV, AC current and voltage. 
For one GL100 logger you can attach approx. 1 to 8 sensors depending on the sensor ans adapter types.

With the combo sensors you can measure two different values at the same time i.e. GS-TH (temperature / humidity), GS-3AT (acceleration / temperature) and GS-LXUV (Illuminance / UV intensity).

GL100 loggeres are also availble as ready built combo products i.e. GL100-WL-TH that has GL100-WL logger and GS-TH temperature / humidity sensor. GL100-WL-TH Combo is especially designed for temperatue and humidity logging and monitoring in real time (wireless connection).

Find out more about the GL100 Series' Petit Loggers and sensors and adapters on GL-100 product pages.

Graphtec GL240 and GL840 midi loggers

Graphtec GLx40

Graphtec's GL240 and GL840 midi LOGGERs are designed for both field and laboratory use. The compact size, robust casing and extendable features / functionalites make them ideal for many applications. You can connect many special sensors with the GL240 and GL840 midi LOGGERs. With the midi logger and the special sensors you are able to save and monitor different values such as, temperature, voltage, humidity, logic, pulse and acceleration.

Midi logger GL240 key features:
  • 10 isolated channels
  • 4.3 inch color display
  • USB interface (USB2.0)
  • Place for logic/pulse sensor
  • Place for SD memory card (SDHC card) or wireless LAN unit (Optional)
  • Possibility for wireless functioning (WLAN optional)
  • Sample date (speed) 10 ms - 1 h, (100 S/s)
  • Touch panel for ease of use

Logger model GL840-WV (Withstand Voltage) is designed to withstand large voltage differences. The GL840-WV can be connected to applications where the voltage difference can be hundreds of volts (max 2300 Vrms CH/GND, 1 min).

GL840-M and GL840-WV key features:
  • 20 isolated input channels as standard (can be extended to 200 channels with addittional modules)
  • 3 different input channels that ensure the measurement of variety of signals
  • Clear 7 inch color display
  • USB interface (USB2.0)
  • Place for logic / pulse sensors
  • Ethernet (10BASE-T/100BASE-TX)
  • Place for SD memory card (SDHC-card) or for wireless LAN unit (Optional)
  • Digital sensor port
  • WLAN option for wireless measurements
  • Sample rate / speed 10 ms - 1 h (100 S/s)
  • Touch panel for ease of use
  • Designed to whitstand large voltage differences (max 2300 Vrms CH/GND, 1 min) ** Note! only model GL840-WV

Midilogger product examples:

  • GL240,10 channel datalogger
  • GL840-M, 20 channel datalogger
  • GL840-WV, 20 channel datalogger, Isolated 2300 Vrms AC
GL240 and GL840 loggers additional modules, sensors, adapters and wide variety of triggers

Graphtec GL240 & GL840

You can extend the number of GL840 loggers' channels with 20 channels supplementary modules (B-564 and B565 (WV) up to 200 channels. With the additional modules you can log and save different values such as temperature, voltage, humidity, acceleration, mechanical values, logic, pulse etc. 

With the WLAN-adapteri (B-568) you can connect the loggers into network and internet. With the B-568 adapter you can also transfer data from GL100-WL into bigger logger in real time.

GL240 and GL840 dataloggers input channel can be set to function also as an alarm output. The GL240 and GL840 multiloggers have many trigger functions. With the trigger functions you can set the logging i.e. to start and to stop at specific time and date. You can control and monitor the functions with PC software.

You can connect all GL100 special sensors, with the GL840 digital sensor output. By using the GS-DPA adapter you can also connect combo sensor with the GL840 datalogger.

Sensors and Adapters that can be connected to GL840 and GL240 dataloggers via GL100 petit logger

Picture Module Measurement (actual sensing) Measurement (calculated value)
Graphtec GS-TH Temp./Humidity sensor
GS-TH
Temperature (-20 ºC to 85 ºC),
Humidity (0 to 100 % RH)
Accumulated temperature,
Dew-point temperature
Graphtec GS-3AT Acceleration/Temp. sensor
GS-3AT
Acceleration in 3-axis (max. 10 G),
Temperature (-10 ºC...50 ºC)
N/A
Graphtec GS-LXUV Illuminance/UV sensor
GS-LXUV
Illuminance (max. 200 k lx),
UV intensity (max. 30 mW/cm2)
Accumulated Illuminance,
Accumulated UV intensity
Grtaphtec GS-CO2 Carbon dioxide sensor
GS-CO2
CO2 concentration
(max. 9999 ppm)
N/A

Adapters for connecting multiple sensors

Picture Module Measurement (actual sensing)
Graphtec GS-4VT Voltage/Temp. input module
GS-4VT
Voltage (max. 50 V) or Temp. (TC: K/T type) of 4 ch,
Logic or Pulse of 4 ch
Graphtec GS-4TSR Temperature input terminal
GS-4TSR
Thermistor (max. 120 ºC) of 4 ch,
Logic or Pulse of 4 ch
Graphtec GS-103AT-4P Thermistor sensor
GS-103AT-4P
Temperature sensor (-40 to 105 ºC), Normal type
use with GS-4TSR module
Graphtec GS-103JT-4P Thermistor sensor
GS-103JT-4P
Temperature sensor (-40 to 120 ºC), Ultrathin type
use with GS-4TSR module
Graphtec GS-DPA-AC AC current sensor adapter
GS-DPA-AC*

AC current,
2 sensors are able to connect (*1)

Power (instantaneous),
Integrated power (Electric energy)

Grpahtec GS-AC50A AC current sensor
GS-AC50A
Clamp-on type (max. 50 A AC), use with GS-DAP-AC module
Graphtec GS-AC100A AC current sensor
GS-AC100A
Clamp-on type  (max. 100 A AC), use with GS-DAP-AC module
Graphtec GS-AC200A AC current sensor
GS-AC200A
Clamp-on type (max. 200 A AC), use with GS-DAP-AC module

 

Graphtec GL900 high-speed midi logger

Graphtec GL900

Graphtec GL900 is an easy-to-use logger with isolated 8-channel/4 -channel multifunction input. With the GL900 you can perform high-speed simultaneous measurements of voltage, temperature, and various other values. The sample rate/speed is max 100 kS/s.

GL900 can operate in 500 V (measurement range 20 mV .. 500 V). GL900 datalogger can be connected with different thermopairs and sensors such as humidity sensor.

GL900 Serie's datalogger have built-in flash memory (256 MB) and wide range of  triggers for data logging , USB and Ethernet interface. The data logged with GL900 can be also save on external USB memory stick (max 512 MB) max. 1 kS/s. You can follow and monitor the data on the instruments' display or with PC software. With the PC software you can save the data straight to Excel format. 

GL900 Series' product examples:

  • GL900-4 datalogger, 4 isoated channels
  • GL900-8 datalogger, 8 isolated channels

Graphtec's most versatile multifunction and most extendable modular multilogger GL7000

Graphtec multiloggeri GL7000

Graphtec's Data Platform GL7000 is a modular multilogger that can be connected to power electronic on 1000 V voltage and log data with 1 MS/s speed. You can connect 10 different modules into GL7000. At the same time you can collect and save data from connected sensors and modules i.e. acceleration and vibration.

GL7000 is a multilogger, oscilloscope and function generator

GL7000 is a main unit that has space for 10 different modules. The modules are mounted into the GL700 frame steadily, but the modules are also easy to change.

From the 10 modules you can find different voltage modules (20 mV .. 1000 V), temperature, logic/pulse, Charge, vibration (TEDS, IEPE) function generators and alarm modules.

GL7000 multilogger's built-in memory, standard capacity and data download 

GL7000 main unit's standard capacity is RAM 2 MB, internal Flash memory 2 GB and place for memory card max. 32 GB SDHC card. Optionally you can connect GL7000 with 64 GB SSD memory module. 64 GB SSD memory module ensures fast multichannel data logging even in longer time frames.

GL7000 has wide variety of triggers that you can use i.e. as a timer for starting and stopping data logging at specific time and date.

More information about GL7000 main unit and attachable modules can be found from the product page.

Product specific PC Softwares and additional GL Connection

Graphtec software

All the Graphtec's data loggers come with a product specific PC software. In addition Graphtec's has GL Connection program that enables you to sync different data loggers together. 

With the PC software you can for example log GL840 sensors' information and at the same time control GL100-WL data such as temperature and humidity and transfer the data in PC software into same time frame. With some of the PC software you can save the data straight into Excel format.

Graphtec software

Graphtec's GL Connection PC Software examples.

Graphtec software