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D4 intrinsically safe explosion-proof proximity Sensor
D4 intrinsically safe explosion-proof proximity Sensor
D4 intrinsically safe explosion-proof proximity Sensor
D4 intrinsically safe explosion-proof proximity Sensor
D4 intrinsically safe explosion-proof proximity Sensor

D4 intrinsically safe explosion-proof proximity Sensor

  • Product Type:KJT-NJ-4
  • Installation:Flush
  • Detection distance:0.8mm/1mm
  • operating voltage:6-12VDC
  • output method:NAMUR NC
  • Ambient temperature:-25℃~+70℃
  • Outlet Mode:2M Intrinsically Safe Cable

       intrinsically safe NAMUR proximity switches are mainly used in equipment and environments that require explosion protection, such as coal mines, petrochemicals, etc. The NAMUR signal is the most widely used intrinsically safe digital input and frequency input standard signal in the world. The earliest is the German standard (DIN19234). Later it became a European standard (EN 50227, DIN EN 60947-5-6). The NAMUR signal is a passive 2-wire system, nominal 8VDC power supply, 1mA and 3mA switching signals. NAMUR type sensors are intrinsically safe explosion-proof instruments and are usually used in conjunction with isolated safety barriers.

● Detect various metal objects--
● With surge, overload, short circuit and reverse polarity protection functionsDC 2 Wire NC
● Shell material: PBT--
● Protection grade IP66 (IEC)--
● Ambient temperature: -25℃~+70℃--


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Product Model
 KJT-NJ-4
Installation methodFlush
Detection distance
0.8mm/1mm
Working temperature
-25~+70℃
SpecificationsD4-20
Operating Voltage
6-12V DC
Ripples-
No-load current>2.2mA(OFF)< 1.1mA(ON)
Maximum load current
<10mA
Voltage drop-
On-off level150Hz
Hysteresis<15(Sr)
Overload protection current-
Short circuit protection-
Repeat accuracy<3.0%(Sr)
Temperature drift<10%(Sr)
Response time0.5ms
Connection methodTerminal Type
Protection levelIP66
Sensing surface materialPBT
Shell MaterialPBT
EMCRFI>3V/M / EFT>1KV  /  ESD>4KV(contact)
Shock/VibrationIEC 60947-5-2,Part7.4.1  /  IEC 60947-5-2,Part7.4.2


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