SIGMATEK DKL062

Technical Specifications

• Model Series: SIGMATEK DKL Draw-Wire Displacement Transducer Series
• Full Measuring Stroke: 620 mm
• Output Signal Type: Differential line driver A/B/Z 3-phase incremental encoder
• Rated Supply Voltage: DC 5 V ±5%
• Max Wire Retraction Speed: 1000 mm/s
• Encoder Resolution: 0.02 mm per pulse
• Max Encoder Pulse Frequency: 300 kHz
• Measuring Wire: Multi-strand coated stainless steel wire rope
• Spring Retraction Tension: 4 N constant force
• Operating Temperature Range: -25 °C ~ +85 °C
• Storage Temperature Range: -45 °C ~ +105 °C
• Relative Humidity Tolerance: 5%–95% non-condensing
• Protection Grade: IP64
• External Dimension: 145 mm (L) × 72 mm (W) × 38 mm (H)
• Net Weight: 890 g

Functional Features

1. 620 mm ultra-long fixed measuring stroke for large linear travel equipment position feedback
2. Differential A/B/Z encoder output with strong anti-electromagnetic interference performance
3. Built-in constant tension spring assembly to maintain wire straightness over full long stroke
4. Hardware mechanical over-travel stopper to stop wire extension at maximum rated stroke
5. Integrated Z-phase zero pulse signal for machine axis origin homing operation
6. Pre-installed 4-meter double-shielded signal cable for long-distance wiring
7. Multi-position mounting lugs support horizontal, vertical and side installation modes

Performance Parameters

• Linear Measurement Accuracy: ±0.05% Full Scale
• Repeat Position 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 Length: 12 m with double-shielded twisted pair
• Mechanical Service Life: 10 million full-stroke reciprocating cycles without accuracy degradation

Material Composition

• Outer Enclosure: Thickened extruded aluminum alloy, hard anodized anti-rust surface treatment
• Retraction Spring: High-fatigue resistant stainless steel constant tension coil spring
• Measuring Wire: Stainless steel core with thick polyurethane wear-resistant outer coating
• Encoder Assembly: Industrial glass disc optical incremental encoder with wide-temperature IC
• Cable Gland: Nickel-plated brass shielded anti-twist cable connector
• Internal PCB: FR4 multi-layer low-crosstalk industrial fiberglass circuit board

Structural Characteristics

1. Reinforced aluminum housing with double-layer silicone rubber sealing gaskets for IP64 dust/water protection
2. Independent separated internal compartments for wire spool mechanical structure and encoder electronic circuit
3. Dual M8 standard mounting lug holes on both sides for heavy-load fixed installation
4. Reinforced strain relief cable outlet structure to prevent long-distance cable tension damage
5. Built-in mechanical hard stop at 620 mm full stroke to block over-extension wire breakage
6. Elongated rectangular housing layout optimized for long-stroke mechanical frame mounting

Working Principle

Advantage Highlights

1. 620 mm long fixed measuring stroke eliminates need for multiple short-stroke sensors on large machinery
2. Reinforced aluminum housing adapts to heavy vibration mining and metallurgical production environments
3. Differential signal output supports up to 12 m wiring distance without signal attenuation
4. Full mechanical and electrical compatibility with all SIGMATEK DIAS PLC and axis control hardware
5. Factory pre-calibrated linearity, no on-site adjustment required after installation
6. High fatigue-resistant wire and spring assembly extend service life under continuous reciprocating operation

Applicable Industries

Installation Requirements

1. Secure sensor housing rigidly via M8 bolts on fixed mechanical frame; eliminate housing vibration during equipment operation
2. Maintain measuring wire straight alignment with maximum allowable deflection angle ±5° to avoid wire side abrasion
3. Separate sensor signal cable from high-power motor/inverter power wiring with minimum 25 cm clearance
4. Implement single-point PE grounding of cable shielding at control cabinet; forbid dual-end grounding
5. Control continuous operating ambient temperature within -25 °C ~ +85 °C; isolate from high-temperature heat sources
6. Reserve minimum 80 mm free space at full wire extension position to prevent mechanical collision with internal stopper

Operation & Maintenance Precautions

1. Avoid direct high-pressure water jet, cutting fluid splash and metal dust accumulation on sensor housing
2. Conduct quarterly inspection of measuring wire coating for abrasion, crack or fraying damage
3. Strictly prohibit manual wire pulling beyond rated 620 mm stroke to prevent permanent spring failure
4. Do not install adjacent to high-frequency welding equipment and large AC drive motors
5. Store spare sensors in sealed anti-static packaging with silica gel desiccant packs
6. Cut off DIAS controller power supply before disassembly of sensor signal wiring terminals