Graphtec GL840

20-200 ch. data-logger for voltage, temperature, humidity, pulse counter with WiFi (optional) and FTP/WEB interface for remote control

Three types of input system enable to measure various phenomena

Input system 1 : Multifunction analog input ports

Contains a highly isolated input system which ensures that signals are not corrupted by noise from other channels. The GL840`s inputs are suitable for combined measurements from voltage,temperature,humidity, logic, and pulse signals.
The standard configuration has 20 analog input channels. It is expandable to 200 channels by adding optional 20 channels extension terminal base unit(B-566) and input terminal units(B-564 or B-565).

Withstand voltage & Accuracy Multi-input type (B-564) Withstand-voltage type (B-565)
Voltage Input voltage range 20 mV to 100V 20mV to 100V
Max. voltage (Input - GND) 60 Vp-p 300 Vp-p
Temp. Thermocouple R, S, B, K, E, T, J, N, W (WRe5-26)
RTD (Resistance Temp. Detector) Pt100 (IEC751), JPt100 (JIS), Pt1000 (IEC751)
Accuracy Voltage ± 0.1% of F.S. ±(0.05% of FS + 10μV)
Temperature* ± 1.55 ºC ± 1.1 ºC

* Accuracy rating for K-type thermocouple at 100˚C includes reference junction compensation. Accuracy varies by the temperature levels and thermocouple types.

The following shows how a standard configuration is expanded to more than 40 channels

Configuration for additional channels

Number of channels

20 channels

40 channels

100 channels

200 channels

GL840 unit (GL840-M or GL840-WV)

1 set

1 set

1 set

1 set

Connection cable(B-567-05 or -20)

N/A

1 pc

1 pc

1 pc

Terminal base (B-566)

N/A

2 sets

5 sets

10 sets

Input terminal (B-564 or B-565 )

N/A

1 set

4 sets

9 sets

Offers longer cable for the input terminals

Input terminal blocks can be connected directly(in daisy chain), or using the B-565 cable(s). This allows the input terminals to be placed in separate locations according to the need of the application.

The input terminal unit and the GL840 main body can be extended by using an extended connections cable.

*If the signal is affected by noise, It may be required to use a slower sampling.

Input system 2 : Support dogotal sensors

Digital sensors and input terminal/adapters for the GL100 connects to the GL840 directly

 

Input system 3 : 4 channels of Logic/Pulse inputs

Supports 4-channels logic or pulse signal inputs. Pulse mode allows cumulative, instant, or rotational values for industrial measurement capability with speed and flow.

Maximum sampling interval of up to 10ms

Provides faster sampling rates for voltage measurements. You are able to achieve up to 10ms sampling speed when limiting the number of channels in use.

Sampling Interval

10ms 20ms 50ms 100ms 200ms 500ms 1s 2s

Number of channel

1 2 5 10 20 50 100 200

Measuring

Voltage

Temperature

- - -

 

Supports large-size SD memory card for reliable long term measurement

New GL840 series carries two SD memory card slots for storage device. The SDHC type SD memory card is supported up to 32GB. 4GB SD memory card comes as a standard accessory installed in the first slot.

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


Capturing time* (when all 20 analog channels are being used with Logic/`Pulse inputs turned off.)

Sampling

10ms 50ms 100ms 200ms 500ms 1s 10s

GBD format

31 days 77 days 95 days 108 days 270 days Over 365 Over 365

CSV format

3 days 11 days 16 days 21 days 54 days 109 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)

Limited sampling speed is available when digital sensors and GL100-WL are used as a remote monitoring device.

What you can do using the wireless LAN (option)
Case 1 : Combining GL100-WL and GL840

GL100-WL can now be connected to the GL840 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 GL840 main inputs. GL840 will now take in direct information from the GL100-WL units.GL840 supports up to five units of the GL100-WL.


Application Example : Air conditioning performance test

Easily get the additional information that is required for the multi channel temperature measurement.

 


Measurement data from GL100-WL, GS sensor on the main unit can be displayed as a waveform and digital value.

Case 2 : Remote monitoring of GL840 by PC or Smart device


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

Using a wireless LAN, there is no needs to connect by USB cable with the GL840.

Application Example : Equipment maintenance (remote monitoring)

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 GL840 using Network


GL840 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 GL840 via Internet


Using a router that supports a dinamic DNS service,
it enables to monitor GL840 remotely via Internet.
In other words, it is possible to contact your GL840 whereever 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

Ring 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)

Relay capture function

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.

Useful functions

Alarm output function

Based on set conditions for each channels, alarm signal can be placed using the four channel alrm out put ports.*
*Input/Output cable(B-513 option) is required to connect the alrm output ports to external buzzer/light mechanism.

USB drive mode

USB drive mode function enables data to be transferred to the PC from GL840 by drag&drop feature.
 

Navigation function

Simple to use navigation screen allows setting operatin for measurement and wireless LAN adapter.

Large easy-to-read 7-inch wide color LCD

Carries a clear 7-inch wide TFT color LCD screen (WVGA:800x480 dots) for the GL840. Monitoring data are displayed in waveform or digital form option. Parameter settings can be displayed on the screen.

3 Types of power source

Choose from AC power supply, DC supply* or the rechargeable battery pack.*
*DC power drive cable(B-514) and battery pack(B-569) are optional accessories.

Networking features

WEB&FTP server function
GL840 can be controlled externally via a network on the WEB browser, which also supports monitoring and transfer of signals and captured data.

FTP client function

Captured data is periodically transferred to the FTP server for backup.

NTP client function

The clock on the GL840 is periodically synchronized with the NTP server.

*The GL840 needs tobe connected to a LAN enviroment using the available Ethenet/WLAN ports for above functions.

GL840 Main unit specifications

Item Description
Model number GL840-M GL840-WV
Number of analog input channels 20 channels in standard configuration, Expandable up to 200 channels
Number of analog input terminals Up to 10 terminals (20 channels / terminal), standard config: 1
Type of analog input terminal Multi-input type, Withstand-voltage type
Port for digital sensor 1 port for the sensor/input terminal/adapter of the GL100
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 1 sec. 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) mode
Counts the number of pulses per sampling interval and converts to rpm
(rotations per minute), Number of pulses for one rotation can be set to
50, 500, 5000, 50k, 500k, 5M, 50M, 500M rpm/F.S. (rpm./Full Scale)
Accumulating
count mode
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
mode
Counts the number of pulses per sampling interval
50, 500, 5000, 50k, 500k, 5M, 50M, 500M C/F.S. (Counts/Full Scale)
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 Ethernet (10 BASE-T/100 BASE-TX), USB (Hi-speed), WLAN (using B-568 option)
Storage
device
Media SD memory card (Support SDHC, up to 32 GB), supports 2 slots *6
Saved contents Captured data, Setting conditions, Screen copy
Capturing mode Mode: Normal, Ring, Relay
Ring: Saves most recent data (Number of capturing data: 1000 to 2000000 points) *7
Relay: Saves data to multiple files without losing data until dada capturing is stopped
Replay data Replays captured data that was saved in the GL840 (in GBD or CSV format)
Scaling (Engineering unit) function Measured value can be converted to 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 past data (using dual display mode (Current + Past data))
• Hot-swapping the SD memory card
• Saving data in between cursors
Display Size 7-inch TFT color LCD (WVGA: 800 x 480 dots)
Language English, French, German, Chinese, Korean, Russian, Spanish, Japanese
Information *8 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 two battery packs (battery pack (option B-517): 7.2V DC, 2900mAh)
Power consumption *9 Max. 38 VA
External dimensions (W x D x H
in mm, Excluding projections
Approx. 240 x 158 x 52.5 Approx. 240 x 166 x 52.5
Weight *10 Approx. 1010 g Approx. 1035 g
*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)
  • 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 4GB SD memory card is installed to slot 1 as standard accessory.
*7 Size of the capture data will be limited to 1/3 of available memory.
*8 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.
*9 Rating under maximum power consumption using the AC adapter, with LCD display on, and battery pack(s)
being charged.
*10 Excludes AC adapter and battery pack.
 

Software specifications for PC

Item Description
Supported OS Windows 8.1, 8, 7, Vista (32/64-bit edition)
Supported device GL840 (USB, Ethernet, 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, Capturing 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 4.4, iOS 7/8
Supported device GL840 (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 device GL840
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 Attached to the SD CARD slot number 2 on the GL840
* When the wireless LAN unit is installed, the SD memory card cannot be used
in slot number 2
Function Access Point mode: Communicate with the GL100-WL as a remote sensor
(captured data in the GL100-WL is transferred to GL840)
Station mode: Communicate with PC or Smart device (control GL840 and
transfer the data from GL840)
Connected number of GL100-WL GL840: Up to 5 units of the GL100-WL

GL840 Analog input specifications

Item Description
Model number GL840-M, Input terminal B-564 GL840-WV, Input terminal B-565
Input method All channels isolated balanced input *11, 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, W (WRe5-26)
Range: 100, 500, 2000 ºC *12
RTD (Resistance
Temperature Detector)
Type: Pt100, JPt100 (JIS), Pt1000 (IEC751)
Range: 100, 500, 2000 ºC *12
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 *13
Voltage ± 0.1% of F.S. (Full Scale) ± (0.05% of F.S. + 10μV)
Temperature (Thermocouple) *14
  Type Measurement range
(TS: Temp Sense)
Measurement accuracy Measurement accuracy
R 0 ≤ TS ≤ 100 ºC ± 5.2 ºC ± 4.5 ºC
100 < TS ≤ 300 ºC ± 3.0 ºC ± 3.0 ºC
300 < TS ≤ 1600 ºC ± (0.05% of rdg. + 2.0 ºC) ± 2.2 ºC
S 0 ≤ TS ≤ 100 ºC ± 5.2 ºC ± 4.5 ºC
100 < TS ≤ 300 ºC ± 3.0 ºC ± 3.0 ºC
300 < TS ≤ 1760 ºC ± (0.05% of rdg. + 2.0 ºC) ± 2.2 ºC
B 400 ≤ TS ≤ 600 ºC ± 3.5 ºC ± 3.5 ºC
600 < TS ≤ 1820 ºC ± (0.05% of rdg. + 2.0 ºC) ± 2.5 ºC
K -200 ≤ TS ≤ -100 ºC ± (0.05% of rdg. + 2.0 ºC) ± 1.5 ºC
-100 < TS ≤ 1370 ºC ± (0.05% of rdg. + 1.0 ºC) ± 0.8 ºC
E -200 ≤ TS ≤ -100 ºC ± (0.05% of rdg. + 2.0 ºC) ± 1.0 ºC
-100 < TS ≤ 800 ºC ± (0.05% of rdg. + 1.0 ºC) ± 0.8 ºC
T -200 ≤ TS ≤ -100 ºC ± (0.1% of rdg. + 1.5 ºC) ± 1.5 ºC
-100 < TS ≤ 400 ºC ± (0.1% of rdg. + 0.5 ºC) ± 0.6 ºC
J -200 ≤ TS ≤ -100 ºC ± 2.7 ºC ± 1.0 ºC
-100 < TS ≤ 100 ºC ± 1.7 ºC ± 0.8 ºC
100 < TS ≤ 1100 ºC ± (0.05% of rdg. + 1.0 ºC) ± 0.6 ºC
N -200 ≤ TS < 0 ºC ± (0.1% of rdg. + 2.0 ºC) ± 2.2 ºC
0 ≤ TS ≤ 1300 ºC ± (0.1% of rdg. + 1.0 ºC) ± 1.0 ºC
W 0 ≤ TS ≤ 2000 ºC ± (0.1% of rdg. + 1.5 ºC) ± 1.8 ºC
R.J.C. ± 0.5 ºC ± 0.3 ºC
Temperature (RTD) *15
  Type Measurement range
(TS: Temp Sense)
Accuracy Accuracy
Pt100 -200 ≤ TS ≤ 100 ºC ± 1.0 ºC ± 0.6 ºC
100 < TS ≤ 500 ºC ± 0.8 ºC
500 < TS ≤ 850 ºC ± 1.0 ºC
JPt100 -200 ≤ TS ≤ 100 ºC ± 0.8 ºC ± 0.6 ºC
100 < TS ≤ 500 ºC ± 0.8 ºC
Pt1000 -200 ≤ TS ≤ 100 ºC ± 0.8 ºC ± 0.6 ºC
100 < TS ≤ 500 ºC ± 0.8 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 2 V range: 60 Vp-p,
5 V to 100 V range: 110 Vp-p
Channels ((-) / (-)) 60 Vp-p 600 Vp-p
Channel / GND 60 Vp-p 300 Vp-p
Max. voltage
(withstand)
Between channels 350 Vp-p (1 minute) 600 Vp-p
Channel / GND 350 Vp-p (1 minute) 2300 Vrms AC (1 minute)
*11 The terminal "b" for using the RTD is connected each other across all channels.
*12 If the specifications of the temperature sensor is lesser or greater than the selected measurement range, GL840 can measure up to the specifications of the sensor.
*13 Subject to the following conditions:
  • Room temperature is 23 oC ± 5 oC.
  • When 30 minutes or more have elapsed after power has turned on.
  • Filter is set to 10.
  • Sampling rate is set to 1 sec, using 20-channel in GL840-M and 10-channel in GL840-WV.
  • GND terminal is connected to ground.
*14 Wire size of thermocouple used is 0.32mm diameter in the T type and 0.65mm diameter in other types.
*15 Supports 3-wire type sensor.
Models
GL840-M  Data-logger GL840 cu 20 canale - precizie: ± 0.1%, suportă max. 110V pe intrare
GL840-WV  Data-logger GL840 cu 20 canale - precizie: ± 0.05% + 10μV, suportă max. 300V pe intrare
Optional accessories
B-564 Terminal 20 canale intrare (necesită B-566)
B-565 Terminal 20 canale intrare, rezistent la tensiune înaltă (necesită B-566)
B-566 Bază pentru terminal intrare tip B-564 sau B-565
B-568 Adaptor WLAN, IEEE 802.11 b / g / n
B-567-05 Cablu conexiune pentru baza extensie B-566, 50 cm - min. 1 buc necesară pentru a monta extensii canale
B-567-20 Cablu conexiune pentru baza extensie B-566, 2m lungime - min. 1 buc necesară pentru a monta extensii canale
B-569 Acumulator Litiu-Ion (7.2 V, 2900mAh)
B-530 Senzor de umiditate - cablu 3m
B-551-10 Rezistență de precizie 250 ohm - convertește semnalul din 4-20 mA în 1-5V
ACADP-20 Sursă de alimentare AC/DC - intrare 100-240V AC, ieșire 24 V DC
GS-TH Senzor de temperatură și umiditate
GS-LXUV Senzor măsură intensitate luminoasă / UV, cablu 20cm
GS-CO2 Senzor concentrație CO2, cablu 20 cm
GS-3AT Senzor accelerație și temperatură, cablu 20 cm
GS-4TSR Terminal intrare 4 x termisor, cablu 20 cm
GS-103AT-4P Senzor temperatura cu termistor, tip normal, (-40 ~ 105 ºC), 3m, 4 buc/set
GS-103JT-4P Senzor temperatura cu termistor, tip ultra-subțire, (-40 ~ 120 ºC), 3m, 4 buc/set
GS-DPA-AC Adaptor montaj senzor curent, cablu 20 cm
GS-AC50A Senzor curent (clampmetru) 50A, cablu 20 cm
GS-AC100A Senzor curent (clampmetru) 100A, cablu 20 cm
GS-AC200A Senzor curent (clampmetru) 200A, cablu 20 cm
GS-4VT Adaptor intrare 4 canale temperatură(termocupluri) sau tensiune, cablu 20 cm
GS-EXC Cablu de extensie senzor/adaptor, lungime 1.5m
GS-DPA Adaptor 2 porturi pentru conectare 2 module senzor
B-570 Adaptor montare GL-840 pe șină DIN
B-540 Adaptor montare bază pentru terminal (B566) pe șină DIN
B-513 Cablu intrare/ieșire pentru seria GL, 2m lungime
B-514 Cablu alimetare DC, 2m lungime
Documents
Datasheet (EN) Brosura si specificatii

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