20 Channel Data Logger GL 840-M
20 Channel Data Logger GL-840-M
Voltage: 20mV to 100V (Max. voltage 60 Vp-p)
Thermocouple type R, S, B, K, E, T, J, N, W (WRE5-26)
RTD: Pt100, Pt1000, JPt100
Humidity: 0 to 100% RH - using optional sensor
Includes: AC adapter and battery
This product is no longer available.
A third-generation data logger with remarkable price/performance is the Model GL840 Series. With the addition of four discrete inputs and outputs, the device's 20 analog channels can be expanded to 200 channels. Logic inputs or pulse inputs can be configured for the discrete inputs of the device as a group. Each of the four channels can be set up to measure frequency or to count when it is set up for pulse. Alarms on the four discrete outputs can be set off by several straightforward analog and pulse/discrete input channel conditions.
A direct-connected voltage in the range of 20 mV to 100 V full scale across 12 ranges, a direct-connected thermocouple of any type, or a 3-wire PT100 or PT1000 RTD can all be measured using one of the 20 GL840 analog input channels. Shunts, powered or grounded thermocouples, as well as off-ground measurements utilizing shunts, are all possible with the GL840's analog input channels because each of them is electrically separated from the other channels and power ground. Up to 60 Vp-p common modes are supported by the GL840-M model. The versatility of the GL840's triggering is its most potent feature. As a function of analog and pulse/discrete signal level (single or windowed), alarm, date, time, and day of the week, data recording can be independently initiated or terminated.
GL840-M data logger, 200 extendable analog input channels, software on CD, and an AC converter are all included.
WiFi functionality is optional.
Features 4 GB of inbuilt non-volatile memory and can be used independently or with a computer.
Web server functionality built-in for remote operations.
Support for removable SD memory with a 32 GB capacity.
7-inch color display built-in.
four independent input channels.
4 independent alarm outputs.
Model number - GL840-M
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, Screwless terminal (option)
Port for digital sensor - 1 port for the sensor/input terminal/adapter of the GL100
Sampling interval - 10 ms to 1 hour (10ms to 50ms: voltage only) *4, External signal
The time scale of the waveform display - 1 sec. to 24-hour/division
Alarm output - Outputs a signal when an alarm condition occurs in the input signal *5
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)
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