{"product_id":"keyence-eh-108-proximity-sensor-eh-series-shielded-1-5mm-range","title":"Keyence EH-108 Proximity Sensor EH Series Shielded 1.5mm Range","description":"\u003ch3\u003eKeyence EH-108 Oil-Resistant Shielded Proximity Sensor: Precision Inductive Detection for Industrial Automation\u003c\/h3\u003e\n\n\u003cp\u003eEngineered for harsh industrial environments requiring high-precision metallic positioning, the \u003cstrong\u003e\u003cspan style=\"color: #0056b3; font-weight: bold;\"\u003eEH-108\u003c\/span\u003e\u003c\/strong\u003e is an advanced oil-resistant, shielded threaded sensor head from the renowned \u003cstrong\u003e\u003cspan style=\"color: #0056b3; font-weight: bold;\"\u003eEH\u003c\/span\u003e\u003c\/strong\u003e series by \u003cstrong\u003e\u003cspan style=\"color: #0056b3; font-weight: bold;\"\u003eKeyence\u003c\/span\u003e\u003c\/strong\u003e. Designed with a compact threaded barrel and integrated 3-meter cable, this inductive proximity device delivers exceptional repeatability down to 0.005 mm, making it an ideal choice for high-speed automated machining cells, conveyor tracking lines, and precision assembly equipment.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Performance Matrix \u0026amp; MECE Specifications\u003c\/h3\u003e\n\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 20px;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f2f2f2;\"\u003e\n      \u003cth style=\"border: 1px solid #ddd; padding: 10px; text-align: left;\"\u003eEngineering Category\u003c\/th\u003e\n      \u003cth style=\"border: 1px solid #ddd; padding: 10px; text-align: left;\"\u003eTechnical Parameter \u0026amp; Operational Metric\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e\u003cstrong\u003eSensing Range \u0026amp; Performance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e\n        * Stable Detecting Range: 0 to 1.5 mm (0.06\")\u003cbr\u003e\n        * Maximum Detecting Distance: 2.5 mm (0.10\")\u003cbr\u003e\n        * Standard Target: Iron, 10 x 10 mm (t=1 mm)\u003cbr\u003e\n        * Hysteresis: 0.07 mm max.\u003cbr\u003e\n        * Repeatability: 0.005 mm (0.0002\")\n      \u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e\u003cstrong\u003eElectrical \u0026amp; Thermal Behavior\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e\n        * Detectable Object: Ferrous metals (with specific reduction curves for nonferrous)\u003cbr\u003e\n        * Temperature Characteristics: ±10% max. variation of detecting distance at 23°C within -10 to +60°C\u003cbr\u003e\n        * Connection Type: Pre-wired with 3-meter (9.8') flexible cable\n      \u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e\u003cstrong\u003eMechanical \u0026amp; Environmental Specs\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e\n        * Enclosure Rating: IP67 waterproof and dustproof\u003cbr\u003e\n        * Ambient Operating Temperature: -10 to +60 °C (No freezing)\u003cbr\u003e\n        * Relative Humidity: 35 to 85% RH (No condensation)\u003cbr\u003e\n        * Physical Weight: Approx. 51 g (including mounting nuts and cable)\n      \u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation, Setup \u0026amp; Maintenance Best Practices\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreaded Mounting:\u003c\/strong\u003e Secure the threaded barrel using the included locking nuts, maintaining proper clearance to avoid unintended background metal interference due to the shielded design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCable Routing:\u003c\/strong\u003e Route the 3-meter integrated cable away from high-voltage power conduits and heavy motor inverter lines to prevent induced electromagnetic noise.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnvironmental Protection:\u003c\/strong\u003e Ensure operating temperatures remain within the -10 °C to +60 °C window and verify that oil and coolant drainage does not pool continuously against the sensing face.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePeriodic Calibration:\u003c\/strong\u003e Clean accumulated metallic swarf and machining residue off the active face during scheduled plant maintenance cycles to preserve stable 1.5 mm detection limits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTarget Devices \u0026amp; Industrial Application Scenarios\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Hardware:\u003c\/strong\u003e Integrates smoothly with compatible Keyence sensor amplifiers, PLC digital input modules, and high-speed counter cards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAutomation Environments:\u003c\/strong\u003e Perfectly suited for CNC machine tool indexing, metal stamping die protection, robotic part-presence verification, and automated packaging conveyor sorting lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSensor Diagnostics \u0026amp; Troubleshooting Guidelines\u003c\/h3\u003e\n\n\u003cp\u003eWhen operational failure occurs, inspect the amplifier indicator LED first. If the LED flashes intermittently without stable target engagement, check for micro-fractures in the 3-meter cable caused by continuous dynamic flexing, or verify that accumulated iron filings have not bridged the shielded perimeter gap, which can mimic a permanent target state.\u003c\/p\u003e\n\n\u003ch3\u003eGlobal PLC Spare HUB's Insight \u0026amp; Field Engineering Experience\u003c\/h3\u003e\n\n\u003cp\u003eDuring a field retrofit on a high-speed CNC component transfer carousel, maintenance personnel reported intermittent positioning errors where the controller missed fast-cycling parts. Inspection revealed that cutting fluid residue mixed with fine iron dust had formed a conductive film across the sensor tip, slightly altering the effective hysteresis. Cleaning the face and relocating the coolant nozzle away from the direct sensing path immediately restored the sub-micron repeatability expected from the \u003cstrong\u003e\u003cspan style=\"color: #0056b3; font-weight: bold;\"\u003eEH-108\u003c\/span\u003e\u003c\/strong\u003e unit.\u003c\/p\u003e\n\n\u003ch3\u003eLogistics, Shipping \u0026amp; Warranty Terms\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Contents:\u003c\/strong\u003e 1 x \u003cstrong\u003e\u003cspan style=\"color: #0056b3; font-weight: bold;\"\u003eKeyence\u003c\/span\u003e\u003c\/strong\u003e \u003cstrong\u003e\u003cspan style=\"color: #0056b3; font-weight: bold;\"\u003eEH-108\u003c\/span\u003e\u003c\/strong\u003e Proximity Sensor Head with mounting nuts and integrated 3m cable.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty Coverage:\u003c\/strong\u003e Fully backed by a 12-month replacement and performance warranty.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGlobal Delivery:\u003c\/strong\u003e Fast 24-48 hour dispatch via premium courier services including FedEx, UPS, and DHL.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eExpert FAQs \u0026amp; Selection Guide\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How does the shielded design of the EH-108 affect flush mounting in metal plates?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The shielded construction confines lateral magnetic flux paths, allowing the sensor to be embedded flush inside metal mounting brackets without triggering false signals from surrounding structural surfaces.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What adjustments are necessary when detecting non-ferrous metals like aluminum or brass?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Non-ferrous metals absorb electromagnetic fields differently than iron, resulting in a reduced sensing distance. Consult the sensor's attenuation characteristics curve to apply the appropriate correction factor during machine design.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can the integrated 3-meter cable be safely extended on site?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Splicing inductive sensor cables can introduce capacitance and resistance anomalies that impair switching stability. It is recommended to keep the factory cable length intact and route it directly to a nearby terminal junction box.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What primary criteria should I evaluate when selecting between different threaded proximity sizes?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Prioritize available mounting space, required stable sensing distance (up to 1.5 mm for this model), target object size, and exposure severity to coolants and oils in your specific mechanical workspace.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Why is oil-resistance a critical factor for this sensor series?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Industrial machining environments constantly expose components to cutting oils and synthetic coolants that degrade standard plastic or improperly sealed housings over time, leading to internal short circuits and premature failure.\u003c\/p\u003e","brand":"Keyence","offers":[{"title":"Default Title","offer_id":67557235097782,"sku":"EH-108","price":106.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/EH-108-3.jpg?v=1790671202","url":"https:\/\/www.plcsparehub.com\/products\/keyence-eh-108-proximity-sensor-eh-series-shielded-1-5mm-range","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}