Nomenclature And Functions - GRAPHTEC GL840 User Manual

2.3 Nomenclature and Functions

This section describes the names and function of parts of the GL840.
AC adapter jack
External input/output terminals
• LOGIC/PULSE
• EXT TRIG/SAMPLE
• ALARM
Input/output cable for GL (Cable is the option B-513)
PC interface terminals
• USB
• LAN
Monitor
Analog signal input terminals
• Standard terminal (B-564)
• Withstand high-Voltage
high-precision terminal (B-565)
Tilt foot
Battery cover
Two battery pack can be installed
(Battery pack is the option B-569)
Operation status LED
• POWER ON when the power is ON
Blinking while accessing to the
SD memory card
• START ON during data capture
• CHARGE ON while the battery is charging
Control panel keys
GND terminal
Power jack for humidity sensor
Humidity sensor (Option: when using the B-530)
Wireless LAN connection terminal
Wireless unit (Option: when using the B-568)
SD CARD2
Module fixing screw
Label
CHAPTER 2 Checks and Preparation
GS sensor and terminal/
adapter connection terminal
(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.)
SD CARD1
Power switch
2-3