KJT intrinsicically safety Namur proximity switch is mainly used in equipment and environment requiring explosion-proof, such as coal mine, petrochemical, etc. Namur signal is a standard signal suitable for a wide range of intrinsically safe digital input and frequency input in the world. Its suitability was as early as the German standard (din19234). Later, it became a European standard (EN 50227, DIN 60947-5-6). Namur signal is passive 2-wire system, nominal 8vdc power supply, 1mA} and 3mA switching signals. Namur sensors are intrinsically safe explosion-proof instruments, which are usually used in conjunction with isolated safety barriers.
Product model KJT-NJ-12
Installation mode Non buried
Detection distance 4mm
Outline specification M12*25
No load current > 2.2mA(OFF) />1.1mA(ON)
working voltage 8.2VDC
switching frequency 2KHz
Switching hysteresis < 15% (Sr)
Repetition accuracy < ±1.0%(Sr)
response time 0.05ms
working temperature - 25ºC-70ºC
temperature drift < ±1%(Sr)
delayed < 10ms
Sensing surface material POM
LED display NO
Degree of protection IP67
| Product Model |
KJT-NJ-12 |
| Installation method |
Non-Flush |
| Detection distance |
4mm |
| Working temperature |
-25ºC~+70ºC |
| Specifications |
M12*1-25 |
| Operating Voltage |
6-12V DC |
| Ripples |
- |
| No-load current |
>2.2mA(OFF)< 1.1mA(ON) |
| Maximum load current |
<10mA |
| Voltage drop |
- |
| On-off level |
150Hz |
| Hysteresis |
<15(Sr) |
| Overload protection current |
- |
| Short circuit protection |
- |
| Repeat accuracy |
<3.0%(Sr) |
| Temperature drift |
<10%(Sr) |
| Response time |
0.5ms |
| Connection method |
Terminal Type |
| Protection level |
IP66 |
| Sensing surface material |
PBT |
| Shell Material |
PBT |
| EMC |
RFI>3V/M / EFT>1KV / ESD>4KV(contact) |
| Shock/Vibration |
IEC 60947-5-2,Part7.4.1 / IEC 60947-5-2,Part7.4.2 |
Company profile
Nanjing KJT Electric Co., Ltd. is located in Nanjing, the ancient capital of the Six Dynasties in the Yangtze River Delta. Relying on university technology and independent R & D, kaijite has developed into a national high-tech enterprise specializing in R & D, production and sales of automation industrial control products. The company has more than 20 invention and utility model patents, and has won the titles of "private scientific and technological enterprise", "small and medium-sized scientific and technological enterprise" and "national high-tech enterprise". The company has set up offices in Thailand, Hebei, Chongqing, Shandong and other places, and its products are exported to Southeast Asia, Europe, Africa, America and other markets.
Quality standard
While continuously developing and expanding, kegit has formulated strict standards for product quality, and has passed iso9001:2015 international quality management system certification. All products have passed CE certification to ensure that product performance and quality reach the advanced level of similar international products and are in a leading position in the industry.
Industry application
KJT products include various industrial automation sensors, industrial safety products, measurement products, wireless transmission devices, etc. they are widely used in aerospace, navigation, railway, post and telecommunications, communication, elevator, textile, petrochemical, mining, metallurgy, machine tool, machinery, tobacco, packaging, printing, food, measurement, office, household appliances and other industries, Promote the development of automation industry.
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