Balluff BES03RM (BES M18MG-PSC16F-S04G) Induktiver Näherungssensor

Bestell-Nr.: BES03RM; Vollständiges Modell: BES M18MG-PSC16F-S04G, M18-thread non-flush mount inductive Näherungssensor.

Erklärung des Modellcodes

M18: M18×1 cylindrical threaded housing

MG: Nicht bündige Montage, extended sensing range

P: PNP-Ausgang

SC: 3-Draht DC

16F: Nominal sensing distance 16 mm

S04G: M12-A-coded male connector, 3-Stift

Kernelektrik & Mechanische Spezifikationen

M12-3-pin Pin Assignment (Male Connector)

1. Braun: DC+ (10-30V)
2. —— (Nicht verbunden)
3. Blau: 0V/GND
4. Schwarz: Signalausgang (PNP)

Notiz: This is a 3-pin M12, not standard 4-pin. Select M12-A-coded 3-core cable for procurement.

Installationsrichtlinien

1. Non-flush type. Do not sink fully into metal bracket; sensor front face must protrude from metal surface.
2. Center-to-center distance between adjacent sensors ≥36 mm to prevent mutual interference.
3. LED is located at plug root, 360° visible; LED lights up upon target detection.

Common Replacement Options

Original Balluff Äquivalent

BES M18MG-NSC16F-S04G (BES03RN): Same dimension & Erfassungsbereich, NPN normally-open version.

Inländische kompatible Alternativen (M18 non-flush,16 mm,PNP-NO,M12-Stecker)

Innovation: IS-M18-16PO-M12

Huong: LJ18A3-16-Z/BY-G (M12 connector variant)

Replacement checkpoints: confirm 16 mm sensing distance, non-flush mount, PNP-NO, M12-3-pin, 10-30VDC-Versorgung.

Typische Anwendungen

Metal-part detection on assembly lines, machine-tool limit sensing, conveyor position confirmation, Lagerung & Logistik, harsh-environment use (low temperature, Staub, water splash).

Balluff BES03RM (BES M18MG-PSC16F-S04G) Complete Installation Manual

Bestell-Nr.: BES03RM, Vollständiges Modell: BES M18MG-PSC16F-S04G, M18 non-flush inductive proximity sensor

1. Produktübersicht
2. Typ: Inductive proximity switch, nicht bündig (cannot be flush-mounted)
3. Gehäuse: M18×1 nickel-plated brass; sensing face PBT engineering plastic
4. Schaltabstand: Nominal Sn=16 mm, effective operating distance Sr≈16 mm
5. Ausgabe: PNP NO normally-open, 3-wire DC 10-30VDC, max. load 200 mA
6. Schnittstelle: M12-A-coded 3-pin male plug (NOT 4-pin)
7. Bewertung: IP68; Operating temperature -40℃～+85℃; Switching frequency 430 Hz
8. Standardzubehör: 2 pcs M18 lock nuts
9. Mechanische Installationsspezifikationen (Kritisch: Never sink non-flush sensor into metal bore)

⚠️This is a non-flush sensor. The sensing face must not sink inside metal mounting holes. Sinking will cause severe sensing-range loss, false triggering or failure to detect targets.

2.1 Abmessungen (Einheit: mm)

Faden: M18×1

Gesamtlänge: 66 mm

Status LED at M12 plug root, 360° viewable; LED illuminates when metal target is detected

Lock nut across-flats: 24 mm

2.2 Mounting Torque

Lock-nut tightening torque: 15-20 N·m, maximum 25 N·m. Exceeding will cause thread stripping or housing cracking.

2.3 Multi-sensor Spacing

Center-to-center distance between identical sensors ≥36 mm to avoid crosstalk false switching

Minimum clearance between sensor sidewall and nearby metal wall ≥18 mm; metal must not hug sensor body

Reference target: 18×18 mm steel plate; smaller actual targets reduce effective sensing range.

2.4 Working Gap to Target

Recommended operating gap: 4-12 mm; maximum reliable operating gap ≤14 mm; avoid continuous operation at the 16 mm limit threshold.

Sensing face shall face metal target as perpendicular as possible; tilt angle preferably <15°. Larger tilt reduces effective sensing distance.

3. Elektrische Verkabelung (M12-A-coded 3-pin male pin-out)

❗Use M12-A-coded 3-core female-end cables. Standard 4-core M12 cables are also acceptable, leave pin 2 unconnected.

Built-in Electrical Protections

Reverse-polarity protection, Ausgangskurzschlussschutz, Überlastschutz.

PLC connection: Connect to PNP-type digital input module.

Induktive Lasten (Relaisspulen): Fit free-wheeling diode in reverse parallel across coil terminals.

Widerstandslasten: Keep load current ≤200 mA.

Verbotene Operationen

1. Do NOT apply AC voltage; only 10-30 VDC DC supply permitted.
2. Route sensor cables separately from high-power power cables to minimize electromagnetic interference.
3. Power-on Commissioning Procedure
4. Complete all wiring; verify no short-circuits before applying power.
5. No metal target present: LED AUS.
6. Move steel target toward sensing face: LED turns ON within sensing range; LED turns OFF after removing target.
7. Cycle target repeatedly: confirm stable ON/OFF without flickering.

This sensor has no sensitivity potentiometer. Sensing distance cannot be adjusted electronically; adjust mechanical gap only.

5. Umgebungsbedingungen für den Betrieb
6. IP68 rating permits temporary water immersion; fully tighten M12 connector, poor sealing degrades IP rating.
7. Operating temperature -40℃～+85℃; select low-temperature-rated cables for cold environments.
8. Avoid heavy impact to PBT sensing face; prevent welding-spatter exposure.
9. Fehlerbehebung

7. Official Documentation Access

Search order number BES03RM on Balluff official website. Enter product page, download original datasheet and 2D/3D CAD files under Downloads tab.

Generic installation document ID for extended-range inductive sensors: 939229.

8. Ersatzteil & Ersatzreferenzen
9. NPN counterpart: BES03RN (BES M18MG-NSC16F-S04G)
10. Domestic compatible: M18 non-flush,16 mm,PNP-NO,M12-3-pin connector.

Balluff BES03RM (BES M18MG-PSC16F-S04G) Full Technical Datasheet

Bestell-Nr.: BES03RM; Vollständiges Modell: BES M18MG-PSC16F-S04G

Typ: M18 cylindrical non-flush-mount inductive proximity sensor

Grundlegende Informationen

Sensorleistung

Elektrische Nennwerte

M12-3-pin Pin-out

Cable recommendation: M12-A-coded female-end, 3-Kernkabel. 4-core cable usable with pin 2 left open.

Mechanisch & Umweltbewertungen

Installation Spacing Rules

1. Adjacent identical-model sensors: center-to-center ≥36 mm for anti-crosstalk.
2. Minimum gap between sensor side and metal wall: ≥18 mm.
3. Suggested working gap: 4-12 mm; avoid continuous operation near 14-16 mm threshold.
4. Keep target perpendicular to sensing-face; tilt angle＜15°, sensing distance drops with larger tilt.

Related Original-part Numbers

1. BES03RN (BES M18MG-NSC16F-S04G): same mechanical & Reichweite, NPN normalerweise offen.

Wichtige Hinweise

1. Non-flush-type sensor: sensing face must protrude from metal mounting surface. Sinking causes range degradation, false-switching or no detection.
2. DC-only device, AC input forbidden.
3. Fit reverse-parallel free-wheeling diode for inductive loads e.g. Relaisspulen.
4. Separate sensor signal cables from high-power power cables to reduce EMI.

Quick Troubleshooting Summary

LED permanently ON without target: Likely sunken installation, nearby metal interference or insufficient inter-sensor distance.

Flickering upon detection: Working gap close to 16 mm maximum limit; reduce mechanical gap.

LED never illuminates: Versorgungsspannung überprüfen, M12 connector seating and brown-blue power wiring.