Flatness gauge XT915

Overview
The Easy-Laser XT915 flatness measurement system is designed primarily for flange and slewing-bearing checks, and for other industrial flatness measurements. XT915 is suited to manufacturers who require fast, repeatable flange checks across long distances. Documentation is included with the system.

Key features

• Fast measurement using a motorized spinning laser head (XT21) that generates a continuous laser plane.
• Measurement range up to 12 m [40'] for long-span flange verification.
• Three coarse alignment targets to simplify and accelerate setup.
• Guided Flange flatness program that leads the operator step by step and provides immediate results.
• Flatness bracket for one-handed detector handling and improved probe positioning compared with standard magnet bases.
• High-resolution detector probe (XT7) with long operating time for industrial use.
• Upgradeable to XT920 for higher precision, longer ranges and extended geometry measurements.

System parts / Included components

• XT7 Detector (2-axis TruePSD 20×20 mm)
• XT21 Laser transmitter (motorized spinning head)
• Targets 100×100 mm (3 pcs typically included)
• XT Flatness bracket (hand-operated detector bracket)
• Remote control
• Measuring tape 5 m [16.4']
• Charger (100–240 V AC), DC split charging cable, DC to USB adapter
• Cleaning cloth for optics, USB memory stick with manuals, hexagon wrench set
• Carrying case with wheels

How it works
Position the XT21 transmitter so the rotating laser plane covers the measurement area. Use the coarse alignment targets for initial alignment, then place the detector at each measurement point using the flatness bracket and record values. The program guides the operator through the sequence and displays flatness results immediately after measurement.

Technical specifications

• Measurement distance: up to 12 m [40']
• Laser plane flatness: ±0.01 mm/m [±0.01 mils/inch]
• XT7 Detector — Type: 2-axis TruePSD 20×20 mm [0.79×0.79"]
• XT7 — Communication: Bluetooth
• XT7 — Internal battery: Li‑Ion rechargeable
• XT7 — Operating time (continuous): up to 16 hours
• XT7 — Resolution: 0.001 mm [0.05 mils]
• XT7 — Measurement accuracy: stationary beam ±0.001 mm ±1%; spinning beam ±0.01 mm ±1%
• XT7 — Electronic inclinometer: 0.1° resolution
• XT7 — Thermal sensors: ±1 °C accuracy
• XT7 — Environmental protection: IP66/67
• XT7 — Operating temperature: -10–50 °C [14–122 °F]
• XT7 — Storage temperature: -20–50 °C [-4–122 °F]
• XT7 — Relative humidity: 10–95%
• XT7 — Housing: Anodized aluminium + PC/ABS + TPE
• XT7 — Dimensions (W×H×D): 76 × 76.6 × 46.4 mm [3.0 × 3.0 × 1.8"]
• XT7 — Weight: 241 g [8.5 oz]
• XT21 Laser transmitter — Type: Diode laser
• XT21 — Wavelength: 630–680 nm
• XT21 — Safety class: Class 2
• XT21 — Output power: < 1 mW
• XT21 — Beam diameter: 6 mm [0.24"] at aperture, ~10 mm [0.39"] at 12 m [40']
• XT21 — Measurement range: up to 12 m [40']
• XT21 — Battery: Li‑Ion rechargeable
• XT21 — Operating time (continuous): up to 16 hours
• XT21 — Warmup time: 15 min
• XT21 — Operating temperature: 0–50 °C [32–122 °F]
• XT21 — Storage temperature: -20–50 °C [-4–122 °F]
• XT21 — Relative humidity: 10–95%
• XT21 — Laser plane flatness: ±0.01 mm/m
• XT21 — TFT display: 240 × 240 px, RGB
• XT21 — Housing: Anodized aluminium + PC/ABS + TPU
• XT21 — Dimensions (W×H×D): 147 × 168 × 147 mm [5.79 × 6.62 × 5.79"]
• XT21 — Weight: 2060 g [72.66 oz]