Graphtec GL840 Data Logger, 20 Input Channel(s)

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RS Stock No.:
182-8025
Mfr. Part No.:
GL840-M
Manufacturer:
Graphtec
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Brand

Graphtec

Model Number

GL840

Number of Input Channels

20

Maximum Voltage Measurement

100V

Maximum Temperature Measurement

1100 (Type J) °C, 1300 (Type N) °C, 1370 (Type K) °C, 1600 (Type R) °C, 1760 (Type S) °C, 1820 (Type B) °C, 2000 (Type W) °C, 400 (Type T) °C, 800 (Type E) °C

Power Source

Battery, Mains

Best Temperature Measurement Accuracy

±0.1 + 0.5 °C (Type T) %, ±0.1 + 1 °C (Type N) %, ±0.1 + 1.5 °C (Type W) %, ±0.5 + 1 °C (Type E) %, ±0.5 + 1 °C (Type J) %, ±0.5 + 1 °C (Type K) %, ±0.5 + 2 °C (Type B) %, ±0.5 + 2 °C (Type R) %, ±0.5 + 2 °C (Type S) %

Minimum Operating Temperature

-25°C

Maximum Operating Temperature

+85°C

Maximum Current Measurement

200A

Display Type

TFT LCD

Temperature Measurement Resolution

0.1°C

Battery Type

Lithium Battery

Number of Readings Per Channel

1000

Best Voltage Measurement Accuracy

±0.1 %

Alarm

Yes

Best Humidity Measurement Accuracy

±3 %RH

Maximum Humidity Measurement

100%RH

Humidity Measurement Resolution

0.1%

COO (Country of Origin):
JP
Input/Output cable for GL is required to connect the signal.
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))
Output signal: Open collector (pull-up to 5V by 10kΩ resistor)

Voltage: Max. 30V,
Current: Max. 0.5A,
Collector dissipation: Max. 0.2W
Minimum interval varies by number of channels used.
Output port can be specified in each input channel.
The built-in Flash memory is available for units with serial numbers C604XXXX or later.
SD memory card cannot be used on the SD card slot while the wireless LAN unit is used.
Size of the capture data will be limited to 1/3 of available memory.
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.
Rating under maximum power consumption using the AC adapter, with LCD display on, and battery pack(s) being charged.
Excludes AC adapter and battery pack.