Zehntner ZRM6014 Retroreflectometer for Road Marking Measurements
| Origin | Switzerland |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported Instrument |
| Model | ZRM6014 |
| Pricing | Available Upon Request |
Overview
The Zehntner ZRM6014 Retroreflectometer is a field-deployable, precision-engineered instrument designed for the quantitative assessment of retroreflective performance of road markings under real-world conditions. It operates on the principle of calibrated photometric measurement—illuminating the marking surface at defined geometry (incident and observation angles per EN 1436 and ASTM E1710), capturing the reflected luminous intensity, and calculating the coefficient of retroreflection (RL) in mcd·m−2·lx−1, or the coefficient of retroreflected luminance (QD) for daytime diffuse-reflective markings. Its dual-mode capability (RL and QD) ensures compliance with both European and North American standards for pavement marking evaluation, supporting regulatory verification, quality control during installation, and long-term durability monitoring across highway networks, airport runways, and urban infrastructure.
Key Features
- Compact, rugged aluminum housing with integrated foldable handle and omnidirectional caster wheels—engineered for rapid deployment and stable operation on uneven surfaces.
- Dual-measurement mode: RL (retroreflection under nighttime conditions) and QD (daytime luminance factor), each configured to meet EN 1436 (2.29° observation angle, 1.24° illumination angle) and ASTM E1710 (1.05° observation, 88.76° illumination) geometries.
- High-resolution 5.7-inch capacitive touchscreen with intuitive graphical interface—enabling one-touch calibration, real-time data preview, and context-aware menu navigation without external peripherals.
- Integrated environmental sensors: digital inclinometer, electronic compass, GPS module, ambient temperature and relative humidity display—ensuring traceable measurement metadata per GLP requirements.
- Advanced geometric correction algorithm compensates for minor operator misalignment and surface curvature, delivering repeatable results within ±2% reproducibility (per internal validation against NIST-traceable reference standards).
- Full measurement cycle—including illumination, detection, calculation, and storage—completed in ≤2 seconds, minimizing traffic disruption during roadside surveys.
Sample Compatibility & Compliance
The ZRM6014 is validated for use on thermoplastic, paint-based, preformed tape, and glass-bead-enhanced road markings across dry, wet, and simulated rain-film conditions. Its 52 mm × 218 mm measurement aperture accommodates standard line widths and edge transitions without spatial averaging artifacts. The instrument conforms to EN 1436:2018, ASTM E1710–22, ASTM E2177–21 (wet retroreflection), and ASTM E2302–22 (chromaticity-corrected measurements). All electronics comply with RoHS Directive 2011/65/EU (lead-free construction), and mechanical components meet IP54 ingress protection for dust and water resistance during outdoor operation.
Software & Data Management
Data acquisition, annotation, and export are managed via embedded firmware with onboard 1 GB flash memory—supporting ≥50,000 measurement records with timestamp, GPS coordinates, tilt angle, humidity, and operator ID. Export formats include CSV and Excel-compatible .xlsx files via USB 2.0 or Bluetooth 5.0. Optional Zehntner RoadMark Analysis Suite (v3.2+) enables georeferenced mapping, longitudinal trend analysis, statistical process control (SPC) charts, and automated report generation compliant with ISO/IEC 17025 documentation requirements. Audit trails, user access levels, and electronic signatures satisfy FDA 21 CFR Part 11 and EU Annex 11 data integrity expectations.
Applications
- Quality assurance during road marking application—verifying compliance prior to project handover.
- Periodic maintenance audits by transportation agencies (e.g., DOTs, Highways England, ANAS) to assess degradation rates and optimize resurfacing schedules.
- R&D validation for marking material manufacturers evaluating binder systems, bead embedment depth, and chromatic stability.
- Third-party certification testing accredited to ISO/IEC 17025 for CE marking and AASHTO R35 compliance.
- Forensic analysis following traffic incidents where marking visibility is a contributing factor.
FAQ
What standards does the ZRM6014 support for retroreflection measurement?
EN 1436:2018, ASTM E1710–22, ASTM E2177–21 (wet condition), and ASTM E2302–22.
Can the instrument measure markings under wet conditions?
Yes—its optical design and software algorithms accommodate standardized wet-film simulation per ASTM E2177, requiring only optional water spray kit (ZRM-WET-Kit, sold separately).
Is GPS data embedded in exported measurement files?
Yes—each record includes WGS84 latitude/longitude, altitude, and UTC timestamp; coordinate accuracy is ±3 m (CEP) with assisted GPS.
How often does the instrument require recalibration?
Annual recalibration against Zehntner-certified reference standards is recommended; field verification using included calibration tile (certified traceable to PTB) should be performed before each measurement session.
Does the ZRM6014 support remote firmware updates?
Yes—updates are delivered via encrypted USB stick or secure HTTPS portal; version history and change logs are retained in device audit trail.
