Explosion-proof mark：Ex(ia)ⅡC 
allowable input signal in dangerous area：
active signal：input signal>2.1mA，
input signal <1.2mA，means OFF
input signal to safety area：
allowable load：AC220V 1A，DC24V 3A
Electrode Open Output:

external power supply：<40V DC，switch frequency≤5kHz。
current input ≤40mA, Short-circuit current <100mA。
NEPSI certification parameter（between 9 and 10 terminal）： 
Uo=10.5V，Io=16.2mA，Co=1.7μF， Lo=94.8mH
apply scope：Proximity switch、active and passive switch
communication：RS232 or RS485 interface
power supply：DC 24V±10%
power consumption：1.1 W
case size：22.5×100×115 mm