SICK DL100-21AA2101 Long-Range Laser Distance Sensor (1PC, New)

SICK · DL100 Family · Laser Distance Sensor · In Stock · 90-Day Warranty

The SICK DL100-21AA2101 is a long-range, mid-distance laser displacement sensor from the SICK DL100 family, engineered for non-contact distance measurement in factory automation, crane positioning, material handling, and bulk-storage level monitoring. It uses a Class 2 visible-red laser and delivers the measured value as a 4–20 mA analog signal plus two configurable PNP switching outputs, letting controls engineers feed live distance data straight into any standard PLC analog input card. KOEED keeps the DL100-21AA2101 in stock as a brand-new 1PC unit, shipped worldwide via DHL or FedEx with a 90-day product warranty. Send your enquiry to Moritta@KOEED.COM for current availability and a 24-hour quote.

Key Technical Specifications / Overview

The DL100-21AA2101 is the workhorse mid-distance variant in the SICK DL100 line. Its visible-red emitter makes installation and aiming straightforward without a separate alignment laser, and the rugged aluminium housing carries an IP67 rating that holds up in wash-down zones and outdoor crane rails. Browse the full laser distance sensor range or jump to the SICK sensor collection for adjacent SKUs.

Application Scenarios / Where It Fits

The DL100-21AA2101 fits anywhere a controls team needs continuous, non-contact distance feedback at the scale of metres rather than millimetres. Typical deployments include overhead bridge cranes and RTG yard cranes, stacker reclaimers in bulk material yards, silo and stockpile level measurement for cement, grain and plastic pellets, travel-position feedback for AGVs and shuttle cars, slab and coil tracking on rolling mill exit tables, vehicle and wagon spotting in loading bays, and anti-collision between robotic gantries.

A common KOEED order looks like a maintenance line replacing a worn unit on a coil-handling conveyor wired into an Allen-Bradley ControlLogix analog input card, alongside Siemens S7-1500 PLCs on the upstream rolling stand. Other recurring pairings: Mitsubishi MELSEC iQ-R analog modules feeding a slab-tracking SCADA, Omron CJ2 controllers on warehouse conveyors, Schneider Modicon M340 racks driving paper-mill winders, Yaskawa MP-series motion controllers on stacker reclaimers, Panasonic FP-X PLCs on smaller AGV platforms, and Fanuc CNC machining cells where the laser monitors workpiece presence between fixtures. For high-resolution inspection on the same line, engineers usually pair the DL100 with shorter-range vision and laser models from KEYENCE so each sensor stays in its sweet spot.

Integration & Wiring Notes

The DL100-21AA2101 terminates in an M12 12-pin A-coded male connector. Pin assignment follows the standard SICK DL100 wiring scheme: brown = +24 V DC, blue = 0 V, white / black = switching outputs Q1 / Q2, grey = 4–20 mA analog output, with the remaining pins reserved for synchronisation and teach-in inputs. Always source a matching pre-wired M12 cordset to preserve the IP67 seal; field-attached connectors are acceptable for retrofits, but only when the assembler is qualified to crimp industrial M12 plugs to spec.

The 4–20 mA output is a sinking type and should land on a passive analog input channel. On an Allen-Bradley 1756-IF8 card or a Siemens 6ES7 331-7KF02 module the wiring is the same idea: tie the grey conductor to the channel's IN+ terminal and bond the channel's IN– to the sensor's 0 V return. Terminate the cable shield at the cabinet entry only — never double-ground. For the switching outputs, allow a short power-on delay (typically under 300 ms) before reading status bits in your PLC program. The free PLC Analog Calculator on the KOEED tools page converts raw counts to engineering units quickly during commissioning.

Installation & Commissioning Tips

Mount the sensor on a rigid bracket and confirm the optical window has a clear line of sight to the target — no glass panes, plastic guards, or wire mesh in the beam path. SICK rates the DL100 for natural surfaces (concrete, painted steel, wood pallets, kraft bag stacks) up to roughly 30 m; for longer ranges or low-reflectivity targets such as black rubber or matte plastics, fit a piece of reflective foil on the target. Align the laser to the geometric centre of the surface and verify the analog output stabilises at the expected mA value before bolting the bracket down.

During first-light commissioning, use the teach-in input to set the near (4 mA) and far (20 mA) limits of the measuring window. This scales the entire 4–20 mA span across the working stroke so your PLC sees the maximum resolution. Verify the sensor at three points — full retract, mid-stroke, and full extend — and cross-check the displayed value against a tape measure. For outdoor crane installations facing direct sun, orient the optical window away from the sunrise / sunset axis and fit a sun-shade hood. Need help selecting alternate models, accessories, or M12 cordsets? Visit our contact page or use the AI Diagnostic Tool to confirm fit before ordering.

Procurement, Warranty & Lead Time

This listing covers 1PC of the SICK DL100-21AA2101 in brand-new condition with factory-sealed packaging. KOEED operates as an independent multi-brand industrial automation parts distributor; we are not an official OEM subsidiary of SICK AG, but we source sensors through verified channels and visually inspect every unit before despatch. The 90-day warranty covers manufacturing defects from the date of receipt and includes DOA replacement.

Lead time after order confirmation is typically 1–2 business days for in-stock units, with global despatch via DHL Express or FedEx International Priority. Customs documents (commercial invoice, packing list, HS code) are prepared for every shipment and we can support EXW, FOB or DAP terms on request. For project quantities or full BOM enquiries — covering this DL100 sensor alongside any of the nine KOEED-supported PLC brands — please send your part list to Moritta@KOEED.COM and we will respond within 24 business hours. Returns must be unopened and within 30 days of receipt; review our return policy and shipping policy before placing an order.

KOEED — Your Trusted PLC Supplier. Multi-brand industrial automation parts sourcing. Contact Moritta@KOEED.COM for any RFQ.