PHM-7230 Ex Intrinsically Safe Isolated Intelligent IO Modules

Power supply

20~35VD

Input signal

Switch contact and proximity switc

Supply voltage at sensor side

8.2VD

Input characteristics of signal input

Onsite input current: when it is>2mA, it means logic 1     

Onsite input current: when it is <1.2mA, it means logic 0, switching hysteresis:0.2mS

The channel number

3 channel

Communication interface

RS485

Communication protect

MODBUS RTU

Dielectric strength

≥2500VAC (intrinsically safe terminal and non-intrinsically safe terminal

Insulation resistance

≥100MΩ

Applicable field equipment

In accordance with DIN19234 and NAMUR proximity switch

Temperature parameter

Continuous working temperature: -20℃~+60℃, storage temperature: -40℃~+85

Relative air humidity

10%~95%RH without condensation

Explosion-proof sign

[Exia Ga] ⅡC

Authentication parameter

(between terminals 1-2, 4-5 and 7-8)

Um=250V Uo=10.5V Io=15mA

Co=1.7μF Lo=100mH Po=39.4mW

Installation place requirement

It can be connected with instruments in 0 zone with ⅡA, ⅡB, ⅡC dangerous gas