GRAPHTEC GL840 - To Ensure Safe and Correct Use; Conventions Used in This Manual; Description of Safety Symbols

2
Nomenclature
Two battery pack can be installed
(Battery pack is the option B-569)
Battery cover
Monitor Power switchControl panel keys
Label
Bottom Panel
Front Panel
Power jack for humidity sensor
Humidity sensor
(Option: when using the B-530)
GND terminal
Operation status LED
• POWER
• START
• CHARGE
AC adapter jack
SD CARD2
External input/output terminals
• LOGIC/PULSE
• EXT TRIG/SAMPLE
• ALARM
Input/out put cable for GL
(Cable is the option B-513)
(Option: when using
• Temperature and humidity sensor
• 4ch voltage/temperature terminal
• 3-axis acceleration/temperature sensor
• 4ch thermistor terminal
• Adapter for AC current sensor
• CO2 sensor
• Illumination/ultraviolet sensor
• Branch adapter for GS.)
Wireless unit
(Option: when using the B-568)
Tilt foot
• Standard terminal (B-564)
• Withstand High Voltage high-precision terminal
(B-565)
Analog signal input terminals
Top Panel
LAN interface terminal
USB interface terminal
GS sensor and terminal/
adapter connection terminal
Wireless LAN
connection terminal