|Withstand voltage & Accuracy||Multi-input type (GL840-M)
Input terminal (B-564 / B-564SL)
|Withstand-voltage type (GL840-WV)
Input terminal (B-565)
|Voltage||Input voltage range||20 mV to 100 V||20 mV to 100 V|
|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), Pt1000 (IEC751), JPt100 (JIS)|
|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 100ºC includes reference junction compensation. Accuracy varies by 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-567 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.
Optional terminal lineup
Standard terminal : B-564
This standard terminal is mounted on the standard model GL840-M of the main unit.
It is a multi-standard terminal in the terminal line-up.
Specifications: Same as the above specifications.
Withstand high-voltage high-precision terminal : B-565
This withstand high-voltage high-precision modelthe terminal is mounted on the GL840-WV of the main unit.
It is a withstand high-voltage and high-precision terminals in the terminal lineup.
Specifications: Same as the above specifications.
Screwless terminal : B-564SL
The performance of this newly added terminal is equivalent to that of the standard terminal B-564.
The push-button shape of the terminals makes it easy to connect signal input lines, greatly reducing wiring time when using multiple channels.
* This terminal is only available as an option item. It is not sold in combination with the main unit.
|Number of analog channels||20ch / unit|
|Input terminal type||Screwless terminal|
|Connectable wire diameter||φ0.3 to 1.3mm|
|Measurement ranges||Voltage||20mV – 100V, 1-5V F.S.|
|Temperature||Thermocouples: K, J, E, T, R, S, B, N, C (WRe5-26)|
|RTD: Pt100, JPt100, Pt1000|
|Humidity||0 to 100% (* Optional item B-530 is required)|
Terminal Base Cover : B-588
This is a newly added optional terminal cover.
It can be mounted on each terminal of the B-564/565/564SL.
It is ideal as a safety measure to prevent accidental touching of the wire connections.
* This is not compatible with shunt resistor (B-551)
Input system 2 : Support digital 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. Up to 10ms sampling speed is achievable when limiting the number of channels in use.
|Number of channel||1||2||5||10||20||50||100||200|
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.
Capturing time* (when all 20 analog channels are being used with Logic/Pulse inputs turned off.)
|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.
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)
• 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.
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 GL840 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|
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 GL840 by drag & drop feature.
Large easy-to-read 7-inch wide color LCD
Simple to use navigation screen allows setting operation for measurement and wireless LAN adapter.
Monitoring data can be displayed in waveform or digital form. 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.*
* Optional accessories (B-514 or B-569) are required.
Various functions are available using a network.
Web & FTP server function, FTP client function, NTP client function
Storage case (B-581)
Protect the main body from cosmetic damages and minor impacts.
* The cover is not to protect from hard impact.
Portable case to store GL840 and signal input cables for easy handling.
* The case is not to protect from hard impact.