SIGMATEK DKL032

Technical Specifications

• Model Series: SIGMATEK DKL Draw-Wire Displacement Transducer Series
• Full Measuring Stroke: 320 mm
• Output Signal Type: Differential line driver incremental encoder (A/B/Z phase)
• Supply Voltage: DC 5 V ±5%
• Max Retraction Speed: 1000 mm/s
• Encoder Resolution: 0.02 mm per pulse
• Max Encoder Input Frequency: 300 kHz
• Wire Material: Coated stainless steel wire rope
• Tensile Retraction Force: 4 N constant spring tension
• Operating Temperature Range: -25 °C ~ +85 °C
• Storage Temperature Range: -45 °C ~ +105 °C
• Relative Humidity: 5%–95% non-condensing
• Protection Class: IP64
• Overall Dimension: 112 mm (L) × 68 mm (W) × 36 mm (H)
• Net Weight: 740 g

Functional Features

1. 3-phase A/B/Z differential encoder output for high anti-interference long-distance signal transmission
2. Built-in constant tension spring assembly to eliminate wire slack during reciprocating motion
3. Integrated Z-phase zero reference signal for absolute origin homing of automation axes
4. Internal mechanical limit stop to prevent over-travel wire breakage
5. Sealed enclosure structure to block industrial dust, water splash and oil mist
6. Standard 4-meter shielded signal cable pre-installed on sensor housing
7. Universal mounting lugs for horizontal and vertical installation on mechanical equipment

Performance Parameters

• Linear Measurement Accuracy: ±0.05% Full Scale
• Repeat Positioning Precision: ±0.01 mm
• Shock Resistance: 10 G peak impact acceleration
• Vibration Resistance: 10 Hz – 1500 Hz, 5 G continuous vibration
• Maximum Signal Cable Extension: 4 m factory standard, extendable to 10 m with shielded twisted pair
• Service Life Cycle: 10 million full-stroke reciprocating movements without accuracy drift

Material Composition

• Outer Housing: Extruded aluminum alloy with hard anodized anti-corrosion coating
• Internal Spring: High-carbon stainless steel constant tension coil spring
• Measuring Wire: Multi-strand stainless steel core with polyurethane wear-resistant coating
• Encoder Core: Industrial optical incremental encoder with glass code disc
• Terminal Connector: Gold-plated phosphor bronze shielded cable gland
• Internal Circuit Board: FR4 high-Tg low-noise industrial fiberglass PCB

Structural Characteristics

1. Integrated single-piece aluminum housing with sealed silicone rubber edge gaskets
2. Separate internal chambers for wire winding mechanism and encoder circuit to avoid mechanical friction interference
3. Dual side mounting lug holes with M6 standard mounting thread
4. External cable outlet with anti-twist strain relief structure to prevent cable internal wire fracture
5. Built-in mechanical travel stopper at maximum stroke position to protect wire rope
6. Compact rectangular layout with centralized wiring outlet for neat cabinet routing

Working Principle

Advantage Highlights

1. Fixed 320 mm stroke design with factory pre-calibration, zero on-site linearity correction required
2. Differential encoder output eliminates electromagnetic interference in heavy machinery environments
3. IP64 sealed enclosure adapts to dusty, oily workshop production lines
4. High tensile stainless steel wire resists abrasion and long-term reciprocating fatigue
5. Direct hardware compatibility with all SIGMATEK DIAS system I/O and motion control modules
6. Compact footprint reduces mechanical installation space on hydraulic and lifting equipment

Applicable Industries

Installation Requirements

1. Mount sensor housing rigidly on fixed mechanical frame via M6 bolts, no housing vibration allowed during equipment operation
2. Align measuring wire straightly without lateral bending or angle offset; wire deflection angle limited within ±5°
3. Install signal cable away from high-power inverter, motor power cables with minimum 20 cm separation distance
4. Cable shielding single-point grounded at PLC control cabinet PE terminal, no dual-end grounding
5. Maintain ambient operating temperature within -25 °C ~ +85 °C; avoid direct heat radiation from heating equipment
6. Reserve 50 mm free space at full wire extension stroke to prevent mechanical collision with stopper

Operation & Maintenance Precautions

1. Prevent metal debris, cutting fluid and high-pressure water jet direct impact on sensor housing
2. Conduct semi-annual visual inspection of wire surface for coating crack, abrasion or fraying
3. Do not manually pull measuring wire beyond rated 320 mm stroke to avoid permanent spring deformation
4. Avoid installation adjacent to high-frequency welding equipment and large AC motors
5. Store spare sensors in dry anti-static packaging with desiccant packs
6. Cut off PLC controller power supply before disconnecting sensor signal cable