2-3
CHAPTER 2 Checks and Preparation
2.3 Nomenclature and Functions
This section describes the names and function of parts of the GL840.
Monitor
Operation status LEDAC adapter jack
External input/output terminals
GS sensor and terminal/
adapter connection terminal
(Option: when using
• Temperature and humidity sensor (GS-TH)
• 4ch voltage/temperature terminal (GS-4VT)
• 3-axis acceleration/temperature sensor (GS-3AT)
• 4ch thermistor terminal (GS-4TSR)
• Adapter for AC current sensor (GS-DPA-AC)
• CO2 sensor (GS-CO2)
• Illumination/ultraviolet sensor (GS-LXUV)
• Branch adapter for GS (GS-DPA).)
• POWER ON when the power is ON
Blinking while accessing to
the memory
• START ON during data capture
• CHARGE ON while the battery is
charging
Control panel keys
• LOGIC/PULSE
• EXT TRIG/SAMPLE
• ALARM
PC interface terminals
• USB
• LAN
Power switch
Analog signal input terminals
• Standard terminal (B-564)
• Withstand high-Voltage
high-precision terminal (B-565)
GND terminal
Power jack for humidity sensor
Wireless LAN connection terminal
SD CARD
Tilt foot
GL840 xing screw
LabelBattery cover
Humidity sensor (Option: when using the B-530)
Two battery packs can be installed
(Battery pack is the option B-569)
Input/output cable for GL (Cable is the option B-513)
Wireless unit (Option: when using the B-568)
Screwless terminal (B-564SL)
Analog signal input terminals
• Screwless terminal
(B-564SL)
GND terminal
Power jack for humidity sensor
Wireless unit (Option: when using the B-568)
SD CARD
Humidity sensor (Option: when using the B-530)
Wireless LAN connection terminal
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