Inductive Proximity SensorsProducts > Sensors/Encoders > Inductive Proximity Sensors
 | Rectangular Body
| Small footprint, simple mounting for tight spaces and low-cost - IP67 protection rating, rectangular body, 2-screw fixing, LED status indicators, 10-30 VDC power. | | Series | Sensing distance | Diff.Travel | Repeat Accuracy | Frequency (tv) | Size | | APS | 4mm | n/a | n/a | 200Hz (5ms) | 12x27 by 12 or 7mm | | DR10 | 3mm & 6mm | <1% to 10% | <1% | 3kHz (2ms) | 10x16x28mm | | CR8 | 1.5mm, 2mm & 3mm | <10% | <5% | 1kHz (10/50ms) | 8x8x40mm | | CR5 | 0.8mm & 1.5mm | <10% | <1.5% | 5kHz / 3kHz (10ms) | 5x5x25mm |
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 | Ø3mm / Ø4mm / Ø5mm
| Miniature Stainless Steel inductive proximity sensors, for very tight space applications and close-in sensing - IP67 protection rating, LED status indicators, 10-30 VDC power. | | Series | Sensing distance | Diff.Travel | Repeat Accuracy | Frequency (tv) | Size | | PD | 0.8mm & 1.5mm | <10% | <1.5% | 5kHz / 3kHz (10ms) | Ø5mm round | | PY | 0.6mm & 1mm | <10% | <5% | 5kHz / 3kHz (10ms) | Ø3 & Ø4mm round |
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 | Ø8mm Body
| Cost-effective sensors for tight space applications - IP67 protection rating, compact metal housing, LED status indicators are visible 360 degrees around the cylinder, 10-30 VDC power. | | Series | Sensing distance | Diff.Travel | Repeat Accuracy | Frequency (tv) | Size | | AE1 | 1.5mm & 2.5mm (std.) | <2% to 10% | <2% | 2.5kHz / 3kHz (100ms) | Size - Ø8mm round
shielded / unshielded | | 2mm & 4mm (extd.) | <1% to 20% | <5% | 3kHz (100ms) | | 3mm (triple) | <10% | <5% | 1kHz (50ms) | | AE6 | 0.6mm & 1mm | <1% to 20% | <5% | 3kHz (5ms) | Short body | | AE9 | 0.6mm & 1mm | <1µm | +0.01mm | tv <50ms | 0-10 VDC Output |
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 | Ø12mm Body
| Our smallest proximity sensor with sink/ source wiring - IP67 protection rating (IP68 for PMW with cable entry), compact metal housing (Stainless PMW), LED status indicators (wide angle PMW), 10-30 VDC power. | | Series | Sensing distance | Diff.Travel | Repeat Accuracy | Frequency (tv) | Size | | AM1 | 2mm & 4mm (std.) | <2% to 10% | <2% | 2 / 1.5kHz (100/50ms) | Size - Ø12mm round
shielded / unshielded | | 4mm & 8mm (extd.) | <1% to 20% | <5% | 1 / 1.5kHz (100ms) | | 6mm (triple) | <1% to 20% | <5% | 800Hz (100ms) | | AM6 | 4mm & 8mm | <1% to 20% | <5% | 1.5kHz / 1kHz | Short body | | AM9 | 0 to 6mm | Resolution - <1µm | +0.01mm | tv <50ms | 0-10 VDC or 20mA | | PMW | 2mm(std), 4mm(ext.) | <2% to 10% | <5% | 2kHz (100ms) | Stainless Steel body | | 6mm(triple) | <15% | <5% | 400Hz (10ms) | Submersible IP68 (cable) | | VM1 | 2mm & 4mm | <2% to 10% | <5% | 25Hz (200ms) | 20-253 VAC powered |
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 | Ø18mm Body
| Great all-around proximity sensors at dynamite prices - IP67 protection rating (IP68 for PKW with cable entry), compact metal housing (Stainless PKW), LED status indicators (visible 360 degrees AK1), 10-30 VDC power. | | Series | Sensing distance | Diff.Travel | Repeat Accuracy | Frequency (tv) | Size | | AK1 | 5mm & 8mm (std.) | <2% to 10% | <2% | 600Hz (100/50ms) | Size - Ø18mm round
shielded / unshielded | | 8mm & 12mm (extd.) | <1% to 15% | <5% | 300Hz (100/50ms) | | AK9 | 0 to 10mm | Resolution - <2µm | +0.02mm | tv <50ms | 0-10 VDC or 20mA | | PKW | 5mm(std), 8mm(ext.) | <2% to 10% | <5% | 1kHz (100ms) | Stainless Steel body | | 10mm(triple) | <15% | <5% | 200Hz (10ms) | Submersible IP68 (cable) | | VK1 | 5mm & 8mm | <2% to 10% | <5% | 25Hz (200ms) | 20-253 VAC powered |
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 | Ø30mm Body
| For applications requiring more sensing distance at a reasonable price - IP67 protection rating (IP68 for PTW with cable entry), compact metal housing (Stainless PTW), LED status indicators (visible 360 degrees AT1), 10-30 VDC power. | | Series | Sensing distance | Diff.Travel | Repeat Accuracy | Frequency (tv) | Size | | AT1 | 10mm & 15mm (std.) | <2% to 10% | <2% & 5% | 200/150Hz (100/50ms) | Size - Ø30mm round
shielded / unshielded | | 15mm & 20mm (extd.) | <2% to 15% | <5% | 150Hz (100/50ms) | | AT9 | 0 to 20mm | Resolution - <5µm | +0.05mm | tv <50ms | 0-10 VDC or 20mA | | PTW | 20mm | <15% | <5% | 100Hz (10ms) | Stainless Steel body | | VT1 | 10mm & 15mm | <2% to 10% | <5% | 25Hz (200ms) | 20-253 VAC powered |
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 | Cables & Accessories
| A variety of cables and accessories are available for proximity sensors. | | Cables - Pico (M8) Quick-disconnect | Extension cables with quick-disconnect plugs on each end (M8 or M12 screw-lock connectors) | | Cables - Micro (M12) Quick-disconnect | | Adapter and Mounting Brackets | Spare Hex Nuts |
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To selecting an Inductive Proximity Sensor you need to consider several parameters to suit the particular application.
The lowest-cost sensors can be found in the APS4 rectangular, and 8mm / 12mm round standard sensing distance ranges, which provide 1.5mm to 4mm sensing distance, with a switching hysteresis (differential travel) of typically 10% of distance, and repeat accuracy of typically 2%. Once set, the switching position, of a sensor with 4mm sensing distance, will be accurate to 0.08mm (2%), and require return travel, or lateral movement, of typically 0.4mm to allow for the 10% hysteresis. These figures apply when sensing steel, and will be less when detecting aluminium or brass. Target size and direction of travel (in/out ot lateral) will also affect the switching point and hysteresis, see the Selection Guide for full information. A high switching frequency must also be selected, if detecting gear teeth, and a small time delay before availability (tv) is required for accurate positioning of a fast moving target.
Applications for basic low-cost sensors include the detection of moving parts on machinery, guards, doors and dampers. When the object is hot, or there is a large amount of mis-alignment or wobble it will be necessary to choose larger diameter sensors, or sensors with extended and triple sensing distance. IP68 sealed sensors are also available for use in wet conditions.
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