2
■ Part material and environment resistance
Part Material Chemical resistance/oil resistance
Case display unit PC/ABS Rather being resistant to water, alcohol, oil, salt and weak acid but has effects of swelling
chassis and dissolution by alkaline, aromatic hydrocarbon and halogen acid.
Touch switch front PET (polyethylene PET is susceptible to damage by strong acid, alkaline, boiling water and water and water
protective sheet terephthalate) vapor but has extremely high resistance to organic solvent and oily substances.
Case packing Nitrile rubber Class This is “O” ring for general mineral oil, and shows good characteristics for gasoline
1·A (JIS B 2401 alcohol, inorganic acid and alkaline. However, it has less resistance to benzene, to
Class 1·A) luene, trichloroethylene, ether, ketone, ethyl acetate, organic acid, etc.
Back plate Incombustible/ Material has rigidity insulation resistance, excellent antiweatherability, water resistance
heat-resistant vinyl and chemical resistance. It has low resistance to hydro-carbon, ester, ketone, aldehyde,
chloride sheet uric acid, chlorinated solvent and rosin.
POWER
Mode indicator
Touch switch
The display screen is
touch switch
Green under run
Orange under stop
Red at alarm
Green blinking at system screen
Infrared ray transmission
port (CH0)
Transmit and receive by
infrared ray
Front protective sheet
This is the sheet to protect
the touch switch and is
replaceable.
Main body
Display device
320 × 240 (× 3) dots
STN color LCD
■ Name of each component
● The front
● The rear
Back plate
CH1 RS-232C connector
(D-sub 9 Pin)
Power supply terminals
(3 mm dia. screws)
Connect the power supply
CH2, CH3 & CH4 RS-485 terminals
(3 mm dia. screws)
Connect RS-485 communication wires
Case packing
Preuent water seepage
into the main boy and
mounting panel
DC input/output
(Hidden in inside of the back plate)
24V GND FG
12 34 5
678910
RS-232C
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