SIEN-M12B-NO-S-L - Uncategorized Festo - Free user manual and instructions
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| Product Type | Inductive Proximity Sensor |
| Model | SIEN-M12B-NO-S-L |
| Brand | Festo |
| Housing Diameter | M12 (12 mm) |
| Output Type | PNP Normally Open (NO) |
| Shielding | Shielded |
| Connection | M12 Connector |
| Sensing Distance | 2 mm (typical for shielded M12) |
| Supply Voltage | 10-30 V DC |
| Current Consumption | < 10 mA |
| Load Current | 200 mA (max) |
| Switching Frequency | 1 kHz |
| Protection Class | IP67 |
| Housing Material | Brass, nickel-plated |
| Operating Temperature | -25°C to +70°C |
| LED Indicator | Yes (output state) |
| Dimensions (Length) | 40 mm (typical) |
| Weight | Approx. 30 g |
| Maintenance | No regular maintenance required; keep clean and dry |
| Safety | Protection against reverse polarity and short-circuit |
| Spare Parts / Repairability | Not user-serviceable; replace entire sensor if faulty |
Frequently Asked Questions - SIEN-M12B-NO-S-L Festo
What does the model number SIEN-M12B-NO-S-L mean?
SIEN is the series for inductive sensors. M12 indicates the housing thread diameter (12 mm). B likely refers to the design (e.g., flush mountable). NO means Normally Open output. S indicates shielded. L denotes a connector version (M12 connector).
What is the sensing distance of this sensor?
The typical sensing distance for a shielded M12 inductive sensor is about 2 mm. The exact value may vary with target material and size.
How do I wire the SIEN-M12B-NO-S-L?
The sensor uses a 4-pin M12 connector. Pin assignments: Pin 1 = Brown (V+), Pin 2 = White (not used or auxiliary), Pin 3 = Blue (V-), Pin 4 = Black (output). The output is PNP normally open.
Can I use this sensor for ferrous and non-ferrous metals?
Inductive sensors detect metals. The sensing distance is calibrated for steel (Fe). For non-ferrous metals like aluminum or copper, the distance is reduced (typically 30-50% of the rated distance).
What is the maximum load current?
The maximum load current is 200 mA. Exceeding this may damage the sensor.
Is the sensor protected against short circuits?
Yes, the sensor has built-in protection against short circuits and reverse polarity.
What is the IP rating of this sensor?
The sensor is rated IP67, meaning it is dust-tight and protected against temporary immersion in water (up to 1 m depth for 30 minutes).
What does the LED indicate?
The LED illuminates when the sensor detects a target (output is active). It is a visual indication of the switching state.
Can I mount the sensor flush in metal?
Yes, the 'S' in the model indicates shielded, which allows flush mounting in metal without derating the sensing distance.
What is the operating temperature range?
The sensor can operate in temperatures from -25°C to +70°C.
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