معرفی محصول
سوئیچ امپلی فایر KFD2 SR2 EX2 2S با ورودی نامور و دو کاناله میباشد
یک ورودی دیجیتال و دو خروجی دارد ولتاژ تغدیه 24VDC است
در مناطق ضد انفجار مورد استفاده قرار مییگیرد
FEATUERS
2channel isolated barrier
voltage 24vdc
Dry contact or NAMUR inputs
Usable as signal splitter 1 input and 2 outputs
2 2 relay contact outputs with AND logic
Line fault detection LFD
Reversible mode of operation
Up to SIL 2 acc to IEC 61508
Function
This isolated barrier is used for intrinsic safety applications It
transfers digital signals NAMUR sensors mechanical
contacts from a hazardous area to a safe area
Each sensor or switch controls two form A normally open relay
contacts for the safe area load The normal output state can be
reversed using switches S1 and S2 Switch S3 is used to
enable or disable line fault detection of the field circuit
During an error condition, the relays revert to their deenergized
state and the LEDs indicate the fault according to
NAMUR NE44
A unique collective error messaging feature is available when
used with the Power Rail system