Reed Relays and
Electronics India Limited
Manufacturer of Reed Switches, Reed Sensors and Reed-based products
Reed Relays and Electronics India Limited Incorporated in 1971
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Standard Ferro-magnetic Metal Detection Sensor, FM-328

  • Drawing of FM-328 Ferro-Magnetic Metal Sensor
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Features

Actuates with Any Ferrous Metal. 10W Contact Rating. Normally Open contact. Sputtered Ruthenium Contact. Easy Screw Mounting.

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Benefits

Does not require power for operation. RoHS Compliant. Not ESD Sensitive. Various Cables and Connectors Available.

📝Description

The standard Ferro-magnetic metals detection sensor is a versatile solution designed for various industrial applications. It can be easily mounted using M3 screws and is capable of switching moderate loads of up to 10W, ensuring reliable operation in different settings. Unlike typical Magnet Sensors, this sensor does not necessitate an actuating magnet; instead, it responds to any Ferro-magnetic material longer than its own length on the actuating side.

Key operational specifications include an actuation distance ranging from 3.0 to 8.0 mm and a release distance from 4.0 to 10.0 mm, providing flexibility to accommodate different application requirements. Each sensor undergoes rigorous testing, with 100% evaluation of actuating distance ensuring consistent performance before being packaged and shipped.

This standard ferro-magnetic sensor’s design emphasises simplicity and efficiency, eliminating the need for additional actuating magnets and simplifying installation and maintenance procedures. Its robust construction and precise detection capabilities make it suitable for environments where accurate and reliable Ferro-magnetic metals detection is essential.

Operate Distancemm3.0 – 8.0
Release Distancemm4.0 – 10.0

⚡️Electrical

Contact FormA
Contact Rating (max)W/VA10.0
Switching Current (max)A0.5
Carry Current (max)A0.75
DC Switching Voltage (max)VDC100
Breakdown Voltage (min)VDC150
Contact Resistance (max)150
Insulation Resistance (min)Ω109
Capacitance (typ)pF0.2

📊Miscellaneous

Operate Time (max)ms0.35
Bounce Time (max)ms0.30
Release Time (max)ms0.15
Resonance Frequency (typ)Hz>2000
Operating Frequency (max)Hz500
Operating Temperature Range°C-40 to +70
Shock Resistance (½Sin wave for 11ms)G30
Vibration Resistance (10-2000 Hz)G20

⚙️Ordering Code

FM-328-(Cable Length)-(Cable Termination Code)

Cable Termination CodeTermination Type
SStripped to 5.0 mm
TStripped and Tinned

FM-328-500-S Denotes FM-328 Ferro-magnetic metal detection Sensor having 500 mm cable length with leads Stripped to 5 mm.

Other Special Configurations: Dynamic Contact Resistance Limit, Special Release AT Limits.

🛠️Usage Notes

Here are some of the recommended usage notes to ensure maximum durability of this product. The complete usage notes are available here.

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FM-328 Ferro-magnetic Detection Sensors
FM-328 Ferro-magnetic Sensors: 8 mm slots for screw mounting, 10W line voltage, omnipolar, complete data sheet and technical specifications.
Brand: RRE
Manufacturer: Reed Relays and Electronics
Model: FM-328
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