Portable Data Logger - GRAPHTEC GL840-M

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GL840-M

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Part number:GL840-M

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Specifications

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20 channel data logger with 7" color display (TFT color LCD), 4GB Internal Flash with optional SD card slot (SDHC 32GB max), 16-bit resolution, high isolation per channel (125 VAC RMS and 350 VDC channel-to-chassis), Up to 110Vp-p between (+) and (-), withhhhstands up to 350Vp-p (max 1min) channel-to-GND and between channels.

The GL840 is a comprehensive multichannel data logger and the best value market leader. This compact, various signal input datalogger accepts voltage, temperature, humidity, pulse, logic signals and more!

Along with the basic analog signal, Logic/Pulse, and digital sensors can be all connected to monitor a variety of measurements.

Wireless LAN option enables the wireless communication with other device. When the GL840 is set as a station, PC and smart devices will be able to access the WLAN unit directly.

GL100-WL can now be connected to the GL840 as a remote sensor using the WLAN feature. GL840 supports up to five units of the GL100-WL.

Various functions, such as a bar chart data display, alarm output function, navigation function, and networking features, are available in the GL840 to assist be conveniently used.

Provides faster sampling rate 10ms for voltage measurement.

The new GL series enables reliable long term measurment with its built-in 4GB flash memory and SD card slot for external storage devices.

Features:

WLAN capable using optional* WLAN Unit B-568 for remote monitoring and datalogging
7 inch wide TFT color LCD screen
Three types of power source: AC, DC*, rechargeable battery pack*
Extended memory capacity using SD cards (SDHC compatible up to 32GB*)
Max sampling interval up to 10ms
Expandable up to 200 channels
Access GL100 sensors and adapters
Flexible input system for applications such as RTD, T/C, humidity and more
Smartphone, remote access monitoring

Applications:

Agriculture
Greenhouse and Hydroponics
Construction and Civil engineering
Machinery manufacturing
Automotive industry
Aerospace
Utilities/Gas and Electric
Electrical appliance and Office equipment
Food processing

Specifications
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
Input Trigger or Sampling	(1 channel), Logic/Pulse (4 channels) Output Alarm (4 channels)
Sampling interval	10 ms to 1 hour (10ms to 50ms: voltage only), 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
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)
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	Ethernet (10 BASE-T/100 BASE-TX), 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)
Saved contents	Captured data, Setting conditions, Screen copy
Back up recording data function
Backup interval	Off, 1, 2, 6, 12, 24 hour(s)
Backup file destination	SD memory card or FTP server
Data format	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 capturing data: 1000 to 2000000 points) 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	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-569): 7.2V DC, 2900mAh)
Power consumption	Max. 38 VA
External dimensions (W x D x H in mm, Excluding projections)	Approx. 246 x 161 x 58.2 (with the cover)
Weight	Approx. 1218 g (the cover is attached)