Graphtec GL840-M Multi-Channel Data Logger | Denkei Corporation Americas

GL840-M Multi-Channel Data Logger

GL840 has two line-up that is “multi-inputs model”, suitable for temperature measurement with multiple channels, and “withstand-voltage model”, suitable for stacked high voltage battery application, or high-precision temperature measurement.

Supports three types of input formats and the analog signal input port can be expanded from the standard 20 channels to a maximum of 200 channels. It makes measure a variety of phenomena.

The optional wireless LAN unit enables wireless measurement, remote monitoring and measurement, and expanding the measurement range.

GL840-M Multi-Channel Data Logger

Model:

GL840

Maker:

Graphtec Corporation

Feature

20 isolated analog input channels & 7” color display
Expandable to 200 channels (requires B-566, B-567-05 or -20 cable and B-564 or B-564SL block)
4GB internal memory & supports up to 32GB SDHC card
DCV full scale inputs of ±20 mV to ±100 V over 12 ranges
Direct thermocouple connection of all TC types
Sampling intervals from 10msec to 1h (channel count dependent)
4 digital input channels (pulse or logic) & 4 alarm outputs (requires item # B-513)
External trigger or external sampling function (requires item # B-513)
EU scaling to user defined engineering units
Input type, alarm type and trigger type are programmable per channel
PC hosting via USB, LAN or optional WiFi module (item # B-568)
Battery operation via optional rechargeable battery (item # B-569)
External DC operation from 8.5 to 24Vdc (requires item # B-514)
APS Software GUI included and unlicensed.

Optional items for consideration

NIST-CAL NIST traceable calibration with certificate
NIST-CAL-DATA NIST traceable calibration with cert. & data
ISO-17025-240 ISO-17025 accredited calibration
B-569 Rechargeable battery
B-568 Wireless LAN module (WiFi)
B-513 Digital Input / Alarm Output cable
B-514 External DC Power cable
B-530 Humidity Sensor
B-536US-240R Custom Pelican case for storage & transport
ACADP-20 Replacement AC Power adapter
B-564 Add-on 20 channel terminal block
B-564SL Add-on 20 channel terminal block, screwless
B-566 Expansion Base Unit
B-567-05 Expansion Cable 0.5m
B-567-20 Expansion Cable 2.0m

Specification

Item		Description
Model number		GL840-M	GL840-WV
Number of analog input channels		20 channels in standard configuration, Expandable up to 200 channels
Type of analog input terminal		Multi-input type, Withstand-voltage type, Screwless terminal (option)
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)
External input/output (*1)	Output (*3)	Alarm (4 channels)
Sampling interval		10 ms to 1 hour (10ms to 50ms: voltage only) (*4), External signal
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
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 DC power: 8.5 to 24 V DC (DC drive cable required) Battery pack: Mountable two battery packs
External dimensions		Approx. 246 x 161 x 58.2 mm (with cover)

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