Balluff BCS M12T4D2-PSM40C-S04G | M12 Capacitive Sensor, 4mm Range, PNP NO, M8
Balluff BCS M12T4D2-PSM40C-S04G capacitive proximity sensor. 4mm flush range, PNP NO, M12x1 thread, M8 4-pin, 10-30V DC, IP67, detects solids & liquids through container walls.
Product Overview
The Balluff BCS M12T4D2-PSM40C-S04G (Order No. BCS001W) is a capacitive proximity sensor in an M12 cylindrical housing. It detects solids and liquids—even through non-metallic container walls (glass, plastic, ceramic)—making it ideal for level detection in tanks, hoppers, and packaging machines. This model features a 4 mm flush-mountable sensing range, PNP Normally Open (NO) output, and a 4-pin M8 connector.
Technical Specifications (Electrical & Performance)
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Parameter
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Specification
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Order Number
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BCS M12T4D2-PSM40C-S04G (BCS001W)
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Sensor Type
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Capacitive Proximity Sensor
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Nominal Sensing Range (Sr)
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4 mm (Flush Mountable)
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Max. Sensing Range
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~5 mm (non-flush objects/liquids)
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Switching Output
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PNP, Normally Open (NO)
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Supply Voltage
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10 ... 30 V DC
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Current Consumption
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≤ 15 mA (no-load)
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Max. Switching Current
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200 mA
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Response Time
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≤ 1 ms
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Hysteresis
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1 ... 15 % of Sr (typ. 5 %)
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Technical Specifications (Mechanical & Environmental)
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Parameter
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Specification
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Housing Material
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Brass, Nickel-plated (Active face: PBT)
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Thread / Size
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M12 x 1 (Cylindrical)
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Length
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~50 mm (typical for M12 cap. sensor)
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Connection
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M8, 4-pin Plug Connector
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Protection Rating
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IP67
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Operating Temperature
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-25 °C ... +70 °C
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EMC / Standards
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EN 60947-5-2, CE, cULus
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Teach / Adjustment
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Potentiometer (sensitivity trim for wall-penetration apps)
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Key Features
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Detects Through Walls: Can sense water, granules, or powders through glass/plastic vessel walls up to several mm thick (range depends on wall material and dielectric).
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Flush Mountable: 4 mm range when installed flush in metal—no reduction factor loss from adjacent metal.
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Sensitivity Trim: Integrated potentiometer lets you tune the switching point to ignore the container wall itself.
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Rugged M12 Metal Housing: Nickel-plated brass body withstands mechanical stress better than plastic alternatives.
Applications
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Non-Metallic Tank Level: Point-level detection of liquids (water, oil, chemicals) in plastic or glass tanks.
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Hopper / Silo Monitoring: Detect presence of granulate, powder, or pellets through the bin wall.
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Packaging QA: Verify product presence inside blister packs, bottles, or cartons on filling lines.
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Machine Build: Web break / material presence detection for paper, film, or non-woven through a guide roller.
Note: For NPN output or cable version, see other BCS M12 variants (e.g., BCS M12T4D2-PSC40C-S04G for NPN). Sensitivity should be adjusted via the onboard pot when sensing through a container wall to avoid false triggering on the wall itself.
About ACH
Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.
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Frequently Ask & Questions
Are preferential prices available?
Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.
Are the Products Genuine OEM Units?
Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.
How will you arrange shipment?
We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.
What is the warranty of goods?
One-year Warranty.
How long is the logistics cycle of the product?
Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.
