GL240
midi Logger

All channel Isolated/Universal input, Standalone Multi-Channel

Its compact size contains an isolated input system which ensures that signals are not corrupted by inputs to other channels, thus eliminating wiring concerns. The GL240s multi-type inputs are suitable for voltage, temperature, humidity, pulse, and logic signals, enabling combined measurements of different phenomena like temperature/humidity and voltage.

Voltage 20 mV – 100 V , 1-5 V/F.S.
Thermocouple Type: K, J, E, T, R, S, B, N, and W (WRe5-26)
Humidity 0 to 100% RH- using the humidity sensor (option B-530)
Pulse 4ch Rotation count (RPM), Accumulating count, Instant count
Logic 4ch

Maximum sampling interval of up to 10ms

Provides faster sampling rates for voltage measurements. Up to 10ms sampling speed is achievable when limiting the number of channels in use.

Sampling Interval 10ms 20ms 50ms 100ms
Number of channel 1 2 5 10
Measuring Voltage ● ● ● ●
Temperature – – – ●

Built-in 4GB Flash memory with SD card support

The new GL series enables reliable long term measurment with its built-in 4GB flash memory and SD card slot for external storage devices. The SD card slot supports an SDHC memory card of up to 32GB.

The captured data can be stored in GBD (Graphtec binary data) or CSV file format.

Sampling 10ms 50ms 100ms 200ms 500ms 1s 10s
GBD format 41 days 88 days 103 days 207 days Over 365 Over 365 Over 365
CSV format 3 days 11 days 16 days 36 days 91 days 182 days Over 365
*Figures are approximate. File size of captured data is 2GB in GBD or CSV file format on this chart.
*Sampling interval is limited by the number of channels in use.(10ms:1ch, 50ms:5ch, 100ms:10ch)

Ring capture function

Relay capture function

The most recent data is saved when the memory is configured in ring memory mode. (Number of capturing data is 1000 to 2000000 points)

Data is continuously saved to multiple files up to 2GB without losing any data until capturing is stopped when the memory is configured in the relay mode.

Hot-swapping the SD memory card

SD card can be replaced during data capturing when the sampling interval is 100ms or slower.

Back up recording data

The data file can be created periodically for purpose of backing up data while recording it, and the file is automatically transferred to another storage device on the unit or FTP server on the network.

Backup interval: 1, 2, 6, 12, 24 hour(s)
Backup file destination: SD memory card or FTP server
Data file format: GBD (binary) or CSV (text)
* The CSV format is available with firmware version 1.43 or rater.
• Available sampling speed is the 100 ms or slower when using the CSV format.
• When the RING mode or external pulse synchronization sampling is selected for recording, the backup function is not available.

• The storage device specified as the recording destination of the measurement data can not be set as the transfer destination of the backup file.
• When backup is enabled and data file format is specified with CSV format, SD memory card exchange (hot-swapping) and RELAY recording are not available.

Data file verification

It is a function to check the integrity of the data file when replaying the data file. It compares check-sum generated from the data file and recorded check-sum. When two check-sums do not match, the data file may be corrupted or has been changed by someone. The check-sum code is recorded into the file when data file is created by the GL unit.
* Check-sum code is added to normal data recording file and also file created for backup, ring or relay recording. Adding check-sum is available for data files created in GBD format.When the recorded data file is converted and saved using GL100_240_840-APS or GL-Connection software, the check-sum code will not match.
* This function is available with firmware version 1.43 or rater.

Useful functions

Displays the data by a bar chart (in firmware ver.1.10 or later)

The integrated data that is measured by the digital sensors can be displayed by a bar chart in the GL240 series.

Available GS sensors Measurement Unit
GS-TH (Temp/Humidity) sensor Integrated temperature ℃h
GS-DPA-AC adapter with GS-Acxxx sensor (AC current/power) Integrated power kWh
GS-LXUV (Illuminance/UV) sensor Integrated illuminance lxh or klxh
GS-LXUV (Illuminance/UV) sensor Integrated UV mW/cm2h

Alarm output function

USB drive mode

Alarm signals can be placed using the four channel alarm output ports based on set conditions for each channel.
* Optional cable (B-513) is required.

USB drive mode function enables data to be transferred to the PC from GL240 by drag&drop feature.

Easy-to-read 4.3-inch wide color LCD

Easy-to-read 4.3-inch wide color LCD

Carries a clear 4.3-inch wide TFT color LCD screen （WQVGA：480×272 dot）for the GL240. Monitoring data are displayed in waveform or digital form option. Parameter settings can be displayed on the screen.

Choose from AC power supply, DC supply* or the rechargeable battery pack.*
* Optional accessories (B-514 or B-569) are required.

Networking features

Cover (B-577)

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Protect the main body from cosmetic damages and minor impacts.
* The cover is not to protect from hard impact.

Storage case (B-581)

Portable case to store GL240 and signal input cables for easy handling.
* The case is not to protect from hard impact.

WIRELESS LAN

Wireless measurement using wireless LAN (option)*

* Optional Wireless LAN unit is available in limited region.
Wireless LAN option enables the wireless communication with other device.
Connects to the GL100-WL wireless unit remotely when the GL240 is set as an access point.
When the GL240 is set as a station, PC and smart devices will be able to access the WLAN unit directly.

What you can do using the wireless LAN (option)*
Case 1 : Combining GL100-WL and GL240

GL100-WL can now be connected to the GL240 as a remote sensor using the WLAN feature.
You can expand your measurement variety by adding the sensors available on the GL100-WL unit.
The measured value by GL100-WL will appear in a single file along with the measurement value from the GL240 main inputs. GL240 will now take in direct information from the GL100-WL unit. GL240 supports 1 unit of the GL100-WL.

Case 2 : Remote monitoring of GL240 by PC or Smart device

Measured data can be monitored and controlled via PC or a smart device using the application software.

Using a wireless LAN, there is no needs to connect by USB cable with the GL240.

Available configuration

■Available functions

Display the data Control the Start / Stop Change the settings Saves the data Receives warning mail
Smart
Device		 YES YES YES N/A N/A

■Available functions

Display the data Control the Start / Stop Change the settings Saves the data Receives warning mail
PC YES YES YES YES N/A

■Available functions

Display the data Control the Start / Stop Change the settings Saves the data Receives warning mail
Smart
Device		 YES YES YES N/A N/A

■Available functions

Display the data Control the Start / Stop Change the settings Saves the data Receives warning mail
Smart
Device		 YES YES YES N/A N/A
PC YES YES YES YES N/A

Case 3 : Remote monitoring of GL240 using Network

GL240 can be connected to a LAN (Local Area Network) via an wireless LAN access point.

Available configuration

■Available functions

Display the data Control the Start / Stop Change the settings Saves the data Receives warning mail
Smart
Device		 YES YES YES N/A N/A
PC YES YES YES YES YES

■Available functions

Display the data Control the Start / Stop Change the settings Saves the data Receives warning mail
Smart
Device		 YES YES YES N/A YES

■Available functions

Display the data Control the Start / Stop Change the settings Saves the data Receives warning mail
PC YES YES YES YES YES

Case 4 : Remote monitoring of GL240 via Internet

Using a router that supports a dinamic DNS service,
it enables to monitor GL240 remotely via Internet.
In other words, it is possible to contact your GL240 wherever you are !!

Available configuration

■Available functions

Display the data Control the Start / Stop Change the settings Saves the data Receives warning mail
Smart
Device		 N/A N/A N/A N/A YES
PC N/A N/A N/A N/A YES

■Available functions

Display the data Control the Start / Stop Change the settings Saves the data Receives warning mail
Smart
Device		 YES YES YES N/A YES
PC YES YES YES YES YES

SPECIFICATION & ACCESSORY

GL240 Main unit specifications

Item Description
Number of analog input channels 10 channels
External input/
output *1		 Input *2 Trigger or Sampling (1 channel), Logic/Pulse (4 channels)
Output *3 Alarm (4 channels)
Sampling interval 10 ms to 1 hour (10ms to 50ms: voltage only) *4, External signal
Time scale of waveform display 1sec. to 24 hour /division
Trigger,
Alarm function		 Trigger action Start or stop capturing data by the trigger
Repeat action Off, On (auto rearmed)
Trigger source Start: Off, Measured signal, Alarm, External, Clock, Week or Time
Stop: Off, Measured signal, Alarm, External, Clock, Week or Time
Condition Setting Combination: OR or AND
Analog signal: Rising (High), Falling (Low), Window-in, Window-out
Logic signal: Pattern (combination of each input signal in high or low)
Pulse (number of count): Rising (High), Falling (Low), Window-in, Window-out
Alarm output Outputs a signal when alarm condition occurs in the input signal *5
Pulse input
function		 Rotation count
(RPM)		 Counts the number of pulses per sampling interval and converts to rpm
(rotations per minute), Number of pulses for one rotation may be set to
50, 500, 5000, 50k, 500k, 5M, 50M, 500M rpm/F.S. (rpm./Full Scale)
Accumulating
count		 Accumulates the number of pulses from the start of measurement
50, 500, 5000, 50k, 500k, 5M, 50M, 500M C/F.S. (Counts/Full Scale)
Instant count Counts the number of pulses per sampling interval
50, 500, 5000, 50k, 500k, 5M, 50M, 500M C/F.S. (Counts/Full Scale)
Maximum number of pulse inputs Maximum input frequency : 50kHz
Maximum number of count : 50kC/sampling (16-bit counter)
Calculation
function		 Between channels Addition, Subtraction, Multiplication, and Division for analog input
Statistical Select two calculations from Average, Peak, Maximum, Minimum, RMS
Search function Search for analog signal levels, values of logic or pulse or alarm point
in captured data
Interface to PC USB (Hi-speed), WLAN (using B-568 option)
Storage
device		 Internal Built-in 4GB Flash Memory *6
External One SD card slot (Support SDHC memory card, up to 32GB) *7
Saved contents Captured data, Setting conditions, Screen copy
Back up recording data function Backup interval *8 Off, 1, 2, 6, 12, 24 hour(s)
Backup file destination *8 SD memory card or FTP server
Data format *8 GBD (binary) or CSV (test)
Check-sum function (Verifies data file) OFF: Not adding check-sum code to data file.
ON: Adding check-sum code to data file. Check-sum code is verified when replaying data on the GL unit or GL-Connection software.
Capturing mode Mode: Normal, Ring, Relay
Ring: Saves most recent data (Number of captured data: 1000 to 2000000 points) *9
Relay: Saves data to multiple files without losing data until data capturing is stopped
Replay Data Replays captured data that was saved in the GL240 (in GBD or CSV format)
Scaling (Engineering unit) function Measured value can be converted to the specified engineering unit
• Analog voltage: Converts using four reference points (gain, offset)
• Temperature: Converts using two reference points (offset)
• Pulse count: Converts using two reference points (gain)
Action during data capture • Displaying parst data (using dual display mode (Current + Past data))
• Hot-swapping the SD memory card
• Saving data in between cursors
Display Size 4.3-inch TFT color LCD (WQVGA: 480 x 272 dots)
Language English, French, German, Chinese, Korean, Russian, Spanish, Japanese
Information *10 Waveform in Y-T with digital values, Waveform only, Digital value, Digital values
and statistics values
Operating environment 0 to 45 ºC, 5 to 85 % RH (non condensed)
(When operating with battery pack 0 to 40 ºC, charging battery 15 to 35 ºC)
Power source AC adapter 100 to 240 V AC, 50/60 Hz (1 pc of adapter is attached as standard accessory)
DC power 8.5 to 24 V DC (DC drive cable (option B-514) is required)
Battery pack Mountable battery pack (battery pack (option B-569): 7.2V DC, 2900mAh)
Power consumption *11 Max. 36 VA
External dimensions (W x D x H
in mm, Excluding projections)		 Approx.194 x 121 x 46 (with the cover)
Weight *12 Approx. 634 g (the cover is attached)
(*1)Input/Output cable for GL (option B-513) is required to connect the signal.
(*2)Input signal;
  • Voltage range: Up to 24V (common ground)
  • Signal type: Voltage, Open collector, Contact (relay)
  • Threshold: Approx. + 2.5 V (Hysteresis: Approx. 0.5V (2.5V to 3V))
(*3)Output signal: Open collector (pull-up to 5V by 10kΩ resistor)
<Maximum rating of the output transistor>
  • Voltage: Max. 30V
  • Current: Max. 0.5A
  • Collector dissipation: Max. 0.2W
(*4)Minimum interval varies by number of channels used.
(*5)Output port can be specified in each input channel.
(*6)The built-in Flash memory is available for units with serial numbers C6043XXX or later. Please contact your local representative for more information.
(*7)SD memory card cannot be used on SD card slot while the wireless LAN unit (opton B-568) is used.
(*8)The CSV format is available with firmware version 1.43 or rater.
– When the RING mode or external pulse synchronization sampling is selected for recording, the backup function is not available.
– When there are meany number of active channels, the sampling time is fast, or the backup interval is long, it may take time to closing the data file after recording stops because the size of the data to be backed up becomes large.
– When saving file to FTP server using wireless LAN connection, backup may fail depending on the communication condition.
– Available sampling speed is the 100 ms or slower when using the CSV format.
– When backup is enabled and data file format is specified with CSV format, SD memory card exchange (hot-swapping) and RELAY recording are not available.
(*9)Size of the capture data will be limited to 1/3 of available memory.
(*10)Display mode is switched every time the dedicated key is pressed. In magnified digital value mode, the displayed channel number can be specified. In the waveform display mode, the changing of the time scale will be effective from the point of the next displayed data.
(*11)Rating under maximum power consumption using the AC adapter, with LCD display on, and battery pack being
charged.
(*12)Excludes AC adapter and battery pack.

GL240 Analog input specifications

Item Description
Input method All channels isolated balanced input *13, Scans channels for sampling
Type of input terminal Screw terminal (M3 screw)
Measurement
range		 Voltage 20, 50, 100, 200, 500 mV, 1, 2, 5, 10, 20, 50, 100 V, and 1-5V F.S. (Full Scale)
Thermocouple Type: K, J, E, T, R, S, B, N, and W (WRe5-26)
Humidity 0 to 100 % RH – using the humidity sensor (option B-530)
Filter Off, 2, 5, 10, 20, 40 (moving average in selected number)
Measurement
accuracy *14		 Voltage ± 0.1% of F.S. (Full Scale)
Temperature
(Thermocouple)*15		 Type Measurement range
(TS: Temp Sense)		 Measurement accuracy
R 0 ≤ TS ≤ 100 ºC ± 5.2 oC
100 < TS ≤ 300 ºC ± 3.0 oC
300 < TS ≤ 1600 ºC ± (0.05% of rdg. + 2.0 oC)
S 0 ≤ TS ≤ 100 ºC ± 5.2 oC
100 < TS ≤ 300 ºC ± 3.0 oC
300 < TS ≤ 1760 ºC ± (0.05% of rdg. + 2.0 oC)
B 400 ≤ TS ≤ 600 ºC ± 3.5 oC
600 < TS ≤ 1820 ºC ± (0.05% of rdg. + 2.0 oC)
K -200 ≤ TS ≤ -100 ºC ± (0.05% of rdg. + 2.0 oC)
-100 < TS ≤ 1370 ºC ± (0.05% of rdg. + 1.0 oC)
E -200 ≤ TS ≤ -100 ºC ± (0.05% of rdg. + 2.0 oC)
-100 < TS ≤ 800 ºC ± (0.05% of rdg. + 1.0 oC)
T -200 ≤ TS ≤ -100 ºC ± (0.1% of rdg. + 1.5 oC)
-100 < TS ≤ 400 ºC ± (0.1% of rdg. + 0.5 oC)
J -200 ≤ TS ≤ -100 ºC ± 2.7 oC
-100 < TS ≤ 100 ºC ± 1.7 oC
100 < TS ≤ 1100 ºC ± (0.05% of rdg. + 1.0 oC)
N -200 ≤ TS < 0 ºC ± (0.1% of rdg. + 2.0 oC)
0 ≤ TS ≤ 1300 ºC ± (0.1% of rdg. + 1.0 oC)
W 0 ≤ TS ≤ 2000 ºC ± (0.1% of rdg. + 1.5 oC)
R.J.C. ± 0.5 oC
A/D converter Sigma-Delta type, 16 bits (effective resolution: 1/40000 of the measuring full range)
Maximum
input voltage		 Between
(+) / (-) terminal		 20 mV to 1 V range: 60 Vp-p,
2 V to 100 V range: 110 Vp-p
Channels ((-) / (-)) 60 Vp-p
Channel / GND 60 Vp-p
Max. voltage
(withstand)		 Between channels 350 Vp-p (1 minute)
Channel / GND 350 Vp-p (1 minute)
(*13)The terminal “b” for using the RTD is connected each other across all channels.
(*14)Subject to the following conditions:
  • Room temperature is 23 oC ± 5 oC.
  • When 30 minutes or more have elapsed after power was turned on.
  • Filter is set to 10.
  • Sampling rate is set to 1 sec, using 10-channel.
  • GND terminal is connected to ground.
(*15)Wire size of thermocouple used is 0.32mm diameter in the T or K type and 0.65mm diameter in other types.

Software specifications for PC

Item Description
Model name GL100_240_840-APS
Supported OS Windows 10, 8.1, 8, 7, Vista (32/64-bit edition)
Supported device GL840 (USB, Ethernet, WLAN), GL240 (USB, WLAN), GL100 (USB, WLAN)
Functions Control the GL series, Real-time data capture, Replay data, and Data format conversion
Supported units & channels Up to 1000 channels total, Up to 4 groups (number of units is limited by model)
Settings control Input condition, Captuering condition, Trigger/Alarm condition, Report, etc.
Capturing data Saved to PC Saves captured data in real time (in GBD binary or CSV format)
Saved to GL unit Saves to the SD memory card (in GBD binary or CSV format)
Displayed information Y-T waveform, Digital values, Report, X-Y graph (specified period of data, data reply only),
Two displays for the current and past data, and Statistical calculation
File operation Converting data format to CSV from GBD binary, merge multiple data files
in the time axis or as an additional channel
Warning function Send e-mail to the specified address when the alarms occur
Statistical calculation Maximum, Minimum, and Avarage during data capturing
Report function Creates the daily or monthly report automatically

Software specifications for Smart device

Item Description
Model name GL-Connect
Supported OS Android 4.1 to 6.0, iOS 9/10/11
Supported device GL840 (WLAN), GL240 (WLAN), GL100 (WLAN)
Functions Control the GL series, Display measured data in waveform or digital value
Supported units Up to 10 units
Settings control Start/Stop, Sampling interval
Capturing data Saves captured data in the GL main body (data cannot be saved in the smart device)
Displayed information Data captured in real time by digital value, Replay the data stored in the GL body by the waveform

Wireless LAN unit (option) specifications

Item Description
Model number B-568
Supported GL series GL840, GL240
Communication method Wireless communication (using radio waves in the 2.4GHz band)
Supported WLAN system IEEE802.11b/g/n
WPS: Push button or PIN method
Security protocols: WEP64, WEP128, WPA-PSK/WPA2-PSK, AKIP/AES
Communication distance: Approx. 40m (depending on the conditions of radio
communication)
Installed location Attaches to the SD card slot on GL840 / GL240 *7
Function Access Point mode: Communicate with the GL100-WL as a remote sensor
(captured data in the GL100-WL is transferred to GL840/GL240)
Station mode: Communicate with PC or Smart device (control GL840/GL240 and
transfer the data from GL840/GL240)
Connected number of GL100-WL GL840: Up to 5 units of the GL100-WL
GL240: 1 unit of the GL100-WL

Humidity Sensor B-530 (option) Specifications

Item Description
Allowable temperature range -25 to 80℃
Allowable humidity range 0 to 100％ RH
Relative humidity measurement accuracy ±3％ RH（5 to 98％ RH at 25℃）
Method Capacitance method
Relative humidity measurement accuracy (5 to 98%) Measurement environment Measurement accuracy
0 to 10℃ ±5％ RH
10 to 20℃ ±4％ RH
20 to 30℃ ±3％ RH
30 to 40℃ ±4％ RH
40 to 50℃ ±5％ RH
50 to 60℃ ±6％ RH
60 to 70℃ ±7％ RH
70 to 80℃ ±8％ RH
* Measurement accuracy at 60℃ or more is a reference value.
Response time 15 sec. (90% response when membrance filter is installed)
Sensor output 0 to 1 VDC
External dimensions Φ14 x 80 mm (excluding cable)
Cable length 3 ｍ
Sensor power source DC + 5 to +16 V
Power consumption approx. 4 mA

Options and Accessories

Item Model number Description
Wireless LAN unit B-568 WLAN adapter, IEEE802.11b/g/n
Battery pack B-569 Rechargeable Lithium-ion battery (7.2 V, 2900mAh)
Input/Output cable for GL series B-513 2 m long (no clip on end of cable)
DC drive cable B-514 2 m long (no clip on end of cable)
Humidity sensor B-530 With 3 m long signal cable (with power plug)
Shunt resistor B-551-10 250 ohms 0.1% (it converts the signal to the “1-5V” from the “4-20mA”)
Cover B-577 Rubber protector (for replacement)
Storage case B-581 Storage for GL series (except GL7000 and GL100)
AC power adapter ACADP-20 For replacement
Input: 100 to 240 V AC, Output: 24 V DC

Dimensions

GL240 External Dimensions with cover (rubber protector)

Scale : mm
Tolerance : +/- 5 mm

GL240 External Dimensions

Scale : mm
Tolerance : +/- 3 mm