Description
Otis Leveling Sensor DAA629AX999 Brief Introduction
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Product Name |
Otis Leveling Sensor |
| Model Number | DAA629AW997
DAA629AX999 DAA629AW999 |
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Quality
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Original.Brand New
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Payment
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T/T. Paypal. Western Union
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Delivery
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3-5 Working Days
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Packaging
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Packed by carton
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Otis Leveling Sensor DAA629AX999 – Millimetre-Perfect Floor Detection for Every Otis Lift | Nanjing Zhuye Elevator Parts
Every smooth landing starts with one accurate signal. The Otis DAA629AX999 leveling sensor is that signal—a SIL-2 rated, magnetic-field sensor that tells the car exactly where the floor is, to within ±1 mm. Whether it’s mounted on the car-top crosshead or the counter-weight, it outputs a rock-solid 0-10 V signal that calibrates leveling, eliminates re-leveling and prevents over-travel faults. When it drifts, the car overshoots, undershoots, or nudges endlessly. Nanjing Zhuye Elevator Parts keeps genuine DAA629AX999 units in anti-static packaging, pre-calibrated and ready for next-day despatch—helping you restore millimetre-perfect landings without costly OEM delays.
Product snapshot
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Otis part number DAA629AX999, hardware rev. AX999, firmware embedded
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Magnetic-field sensor, 0-10 V differential output, 24 V DC supply, 5 mA consumption
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Measuring range ±15 mm, resolution 0.1 mm, linearity ±0.5 mm, temperature drift < 0.02 %/°C
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IP65 aluminium housing, PUR cable 3 m, M12 connector option, −25 °C to +70 °C
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Compatible with Otis GECB-AP, XRDS V1.0/V2.0, 4200/5200 high-speed controllers
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CE, UL, RoHS, REACH and Otis QES 2024 approved
Where it works
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Car-top or counter-weight mounting on Otis Gen2® Life, Gen2® Switch, 4200/5200
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Side-opening and centre-opening doors, magnetic or steel tape target every floor
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Modernisation packages replacing obsolete DAA629AX998 or reed-switch sensors
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Any controller expecting SIL-2 certified level signal
Installation method – 15-minute precision swap
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Place lift on inspection mode; stop car 200 mm above floor; switch OFF main breaker; lock & tag.
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Clean old sensor and magnetic tape; photograph wiring polarity.
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Release M12 lock-nut; slide old sensor out; note shimming thickness.
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Mount new DAA629AX999 on bracket; gap 2 mm ±0.5 mm to magnetic tape.
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Connect 24 V DC (brown +, blue −), signal (white +, grey −); verify LED green = ready.
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Hand-jog car ±15 mm; multimeter must show 0-10 V linear change.
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Zero calibration: floor level = 5.00 V ±0.02 V via Otis Level Tool (OLT-999).
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Span check: ±10 mm = 0 V and 10 V; linearity error < ±0.5 mm.
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Seal cable gland; apply torque-stripe paint; log zero value and serial number.
Replacement cycle & preventive maintenance
Otis bulletin SB-LEVEL-2024-05 recommends:
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Zero check every 6 months: drift > ±2 mm requires recalibration.
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Visual inspection every 12 months: check for oil, cracked cable, LED status.
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Replace entire sensor every 5 years or 1 million cycles, whichever comes first.
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Immediate replacement if:
– zero drift > ±5 mm after recalibration,
– insulation < 1 MΩ between wire and shield,
– housing cracked exposing electronics,
– LED off while 24 V present and target within range.
Pro tip: 70 % of premature failures are traced to oil ingress—clean cross-head every 6 months.
Maintenance tips from Nanjing Zhuye Elevator Parts
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Always use gold-plated M12 connector for 24 V DC; tin contacts oxidise and cause drift.
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Never pressure-wash the sensor; water kills IP65 in minutes.
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Keep a spare DAA629AX999 in every service van; at 45 g it costs less than one callback.
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After heavy rain, run empty car and check zero drift < 1 mm.
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Order the “Leveling Kit” (sensor + M12 connector + shims + calibration certificate) from Nanjing Zhuye Elevator Parts to eliminate parts hunting and ensure matched components.
Why buy from Nanjing Zhuye Elevator Parts?
We are an Otis-authorised distributor, importing DAA629AX999 directly from the German foundry, vacuum-calibrating every sensor and shipping with a 24-month replacement warranty. Stock is stored in humidity-controlled bins to prevent electronics drift. Orders placed before 15:00 China time leave the same evening via DHL Express, arriving Europe or North America in 2–4 days. Bulk pricing starts at ten pieces; we can supply pre-calibrated sensors with your job-specific zero/span values and include a loaner unit to keep your lifts leveling during the swap.
Conclusion
The DAA629AX999 leveling sensor is the silent scale that tells every Otis lift exactly where the floor is. By installing the genuine unit, calibrating zero/span correctly and replacing it before oil ingress, you ensure every landing is level, every stop is smooth, and every passenger steps out with a smile. Stock genuine DAA629AX999 from Nanjing Zhuye Elevator Parts today—because when the sensor stops, the level stops.
