CNTD CJY-S/M long range cylindrical inductive sensors provide 4–30mm nominal metal-detection distances with a straight male M12 four-pin A-coded connector. Flush and nonflush sensing housings in M12, M18 and M30 sizes have nickel-plated brass construction, red operating indicators and IP65 protection. The manufacturer describes nominal sensing distances approximately 1.5–2 times those of its existing standard models; select the actual operating gap from the specified setting range.
All listed models operate at 10–30VDC. DNA/DNB identify NPN NO/NC; DPA/DPB identify PNP NO/NC. DNC/DPC provide complementary NO+NC outputs. The attachment gives single-output circuit and connector diagrams; it does not assign both output conductors of a NO+NC version.
| Sensing housing / distance | NPN models | PNP models |
|---|---|---|
| M12 / 4mm, flush | CJY12S-04DNA/M CJY12S-04DNB/M CJY12S-04DNC/M | CJY12S-04DPA/M CJY12S-04DPB/M CJY12S-04DPC/M |
| M12 / 8mm, nonflush | CJY12S-08DNA/M CJY12S-08DNB/M CJY12S-08DNC/M | CJY12S-08DPA/M CJY12S-08DPB/M CJY12S-08DPC/M |
| M18 / 10mm, flush | CJY18S-10DNA/M CJY18S-10DNB/M CJY18S-10DNC/M | CJY18S-10DPA/M CJY18S-10DPB/M CJY18S-10DPC/M |
| M18 / 16mm, nonflush | CJY18S-16DNA/M CJY18S-16DNB/M CJY18S-16DNC/M | CJY18S-16DPA/M CJY18S-16DPB/M CJY18S-16DPC/M |
| M30 / 20mm, flush | CJY30S-20DNA/M CJY30S-20DNB/M CJY30S-20DNC/M | CJY30S-20DPA/M CJY30S-20DPB/M CJY30S-20DPC/M |
| M30 / 30mm, nonflush | CJY30S-30DNA/M CJY30S-30DNB/M CJY30S-30DNC/M | CJY30S-30DPA/M CJY30S-30DPB/M CJY30S-30DPC/M |
| Model group | Nominal distance | Setting range | Standard iron target | Average response frequency |
|---|---|---|---|---|
| CJY12S-04/M | 4mm | 0–2.8mm | 12×12×1mm | 400Hz |
| CJY12S-08/M | 8mm | 0–4.9mm | 25×25×1mm | 300Hz |
| CJY18S-10/M | 10mm | 0–7mm | 20×20×1mm | |
| CJY18S-16/M | 16mm | 0–10.5mm | 40×40×1mm | 200Hz |
| CJY30S-20/M | 20mm | 0–11.9mm | 45×45×1mm | 100Hz |
| CJY30S-30/M | 30mm | 0–17.5mm | 75×75×1mm |
Use each setting-range entry directly rather than calculating one common percentage of nominal distance. Response frequency is an average measured with the standard target, twice the target width as the spacing between successive targets, and a sensing gap equal to half the nominal distance.
| Parameter | Rating for the listed models |
|---|---|
| Supply / maximum control output | 10–30VDC / 200mA |
| Leakage current / residual voltage | ≤10mA / ≤1V |
| Hysteresis | ≤10% of nominal detection distance |
| Temperature influence | Within ±10% of the sensing distance at 20°C over −25 to +70°C |
| Protection circuit | Surge, reverse-polarity and overcurrent protection |
| Enclosure / indication | IP65; red operating LED |
| Operating / storage temperature | −25 to +70°C / −30 to +80°C, without icing |
| Humidity | 35–95%RH, without condensation |
| Insulation resistance | ≥50MΩ at 500VDC |
| Dielectric strength | 1500VAC, 50/60Hz, 1min |
| Vibration | 1mm amplitude, 10–55Hz swept over 1min, 2h per X/Y/Z direction |
| Shock | 500m/s², approximately 50G, three times per X/Y/Z direction |
| Materials | Nickel-plated brass case and nuts; nickel-plated iron washers; PBT sensing face |
| Position | Element | Meaning and options |
|---|---|---|
| 1 | CJ | Inductive sensing |
| 2 | Housing shape | Y=cylindrical metal. YG=stainless-steel cylindrical housing and YS=plastic cylindrical housing are additional general guide choices; listed full models use Y. |
| 3 | Size | 12=M12, 18=M18, 30=M30 in the model selection. The guide also identifies 08=M8, without a corresponding full model here. |
| 4 | S | Long range type |
| 5 | Thread length | Blank=standard; L=long thread. The illustrated dimensions apply to standard bodies. |
| 6 | Distance | 04=4mm, 08=8mm, 10=10mm, 16=16mm, 20=20mm, 30=30mm for listed models; 02=2mm also appears in the general guide. |
| 7 | Supply | D=10–30VDC for the full models above; A=90–250VAC and E=20–60VDC are general guide options without full models in this selection. |
| 8 | Output | N=NPN; P=PNP |
| 9 | State | A=NO; B=NC; C=NO+NC |
| 10 | M | Straight male M12 four-pin A-coded connector, after the slash in the complete designation |
| Single-output circuit | Supply pins | Output pin | Load connection |
|---|---|---|---|
| NPN | Pin 1: brown / +V; pin 3: blue / 0V | Pin 4: black / switching output | Between +V and pin 4 |
| PNP | Between pin 4 and 0V |
Pin 2 is not assigned by the illustrated single-output diagrams. Use the connector-face and timing drawings in the attachment for orientation and NO/NC behavior. NO+NC versions require their matching output assignment; the single-output drawing is not a complete pinout for them. Tighten the connector to 0.39–0.49N·m and secure the cable connection with tape where vibration occurs. A fixed cordset length is not specified for these direct-connector sensor bodies.
| Housing / mounting | Sensing thread | Overall axial reference | Thread reference | Front projection | Nut reference |
|---|---|---|---|---|---|
| CJY12S-04/M, flush | M12×1 | 65mm | 50mm | Flush | Ø21mm, 17mm across flats, 4mm thick |
| CJY12S-08/M, nonflush | 60mm | 45mm | 7mm | ||
| CJY18S-10/M, flush | M18×1 | 65mm | 50mm | Flush | Ø29mm, 24mm across flats, 4mm thick |
| CJY18S-16/M, nonflush | 60mm | 45mm | 10mm | ||
| CJY30S-20/M, flush | M30×1.5 | 65mm | 50mm | Flush | Ø41mm, 36mm across flats, 5mm thick |
| CJY30S-30/M, nonflush | 60mm | 45mm | 11mm | Ø41mm, 35mm across flats as drawn, 5mm thick |
The rear electrical connector thread is M12×1 on all illustrated housings. Axial dimensions follow the drawing endpoints and include the illustrated connector body, without a separate cable assembly. Complete indicator, nut and sensing-head geometry is retained in the attachment.
All values below are millimeters. A and B are the illustrated face-to-face and parallel spacing. n is the sensing-head exposure reference; Ød is the surrounding-metal opening diameter; ℓ and m follow the axial and surrounding-metal endpoints in the attached geometry.
| Model group | A | B | n | Ød | ℓ | m |
|---|---|---|---|---|---|---|
| CJY12S-04/M | 24 | 24 | 0 | 12 | 12 | 18 |
| CJY12S-08/M | 48 | 36 | 11 | 36 | 24 | 36 |
| CJY18S-10/M | 42 | 36 | 0 | 18 | 21 | 27 |
| CJY18S-16/M | 84 | 54 | 14 | 54 | 42 | 54 |
| CJY30S-20/M | 90 | 60 | 0 | 30 | 45 | 45 |
| CJY30S-30/M | 150 | 90 | 15 | 90 | 75 | 90 |
The guide references CCC to GB/T14048.10 and TÜV/CE to EN60947-5-2; supporting certification documents are not included. Utilization references are DC-13 at 10–30VDC, 200mA and AC-140 at 24–250VAC, 200mA. The AC reference does not change the 10–30VDC operating supply of the listed models.
Use for ordinary industrial metal-position sensing within the specified target, gap, circuit and mounting conditions. Regional versions can differ. The manufacturer excludes personnel-safety functions, exceptionally high-reliability nuclear, gas and power systems, harsh outdoor or contaminated environments, fire or explosion hazards, strong acids or alkalis, and military or aerospace applications unless specifically designed and confirmed for that purpose.
