Purchase now: Schmersal 101109210 BNS 33-11ZG Sensor
Purchase now: Atlantech Drives provides you the Schmersal 101109210 (Model: BNS 33-11ZG), a compact and reliable Coded Magnetic Safety Sensor. This unit is designed for non-contact monitoring of safety doors, making it ideal for food and beverage applications or environments with high hygiene requirements where mechanical crevices are undesirable. The «ZG» designation indicates it is equipped with an Integrated LED for status indication.
Technical Specifications and Non-Contact Operation
The 101109210 operates using a coded magnet system (requires BPS 33 actuator). It features 1 NO (Signaling) and 1 NC (Safety) contact configuration. The unit comes pre-wired with a 1-meter PVC cable, simplifying installation in tight spaces. Its **IP 67** thermoplastic housing is insensitive to transverse misalignment (up to 5-8 mm), meaning the machine won’t stop just because a door vibrates slightly, a major advantage over rigid mechanical interlocks.
- Part Number: 101109210.
- Model: BNS 33-11ZG.
- Sensor Type: Magnetic Coded.
- Contacts: 1 NO / 1 NC.
- Indication: LED (illuminates when guard is closed).
- Connection: 1 Meter Cable (4-wire).
- Switching Voltage: Max 24 VDC.
- Switching Current: Max 400 mA.
- Protection: IP 67 / NEMA 4.
Expert Installation Advice: Magnetic Interference
Magnetic sensors can be unreliable if mounted incorrectly. Expert Tip: Never mount the BNS 33 (101109210) directly onto a steel frame without checking the magnetic influence. Ferromagnetic materials can reduce the switching distance. We strongly recommend using **non-magnetic spacers** if mounting on steel. Also, insure the BPS 33 actuator is mounted parallel to the sensor face; mounting it perpendicularly will result in failure to switch.
Frequently Asked Questions (FAQs)
Q: Can I use a standard magnet to bypass this?
A: No. The BNS 33 series uses coded magnets with specific polarity arrangements. A standard fridge magnet or bar magnet will not trigger the safety contacts, providing tamper resistance.
Q: What happens if the LED is flashing?
A: In this specific model, the LED is usually solid on when the gate is closed and safe. If it flickers, it indicates the actuator is at the limit of the sensing range («Sar»), and you should adjust the door alignment.
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