Specs at a glance Accuracy: up to 0.5 mm Process temperature: -40°C...200°C (-40°F...392°F) Process pressure / max. overpressure limit: Vacuum.....16 bar abs Max. measurement distance: 70 m (230 ft) For calibration to regulatory standards: 30 m (98 ft) Main wetted parts: 316L, PTFE ---------------------------------------- Field of application Endress Hauser's Micropilot NMR81 is used for custody transfer and inventory control applications with NMi- and PTB-approvals and meets the requirements according to OIML R85 and API 3.1B. NMR81 is particularly suited for free space applications up to 70m. The drip-off lens antenna with 80 GHz transmitting frequency produces a sharply focused beam angle of 3° and avoids obstacles even close to tank wall. • Process connections: Flanges • Temperature: -40 to +170°C (-40 to +338°F) • Pressure: Vacuum to +16bar (Vacuum to +232psi) • Maximum measuring range: 70m (230ft) • Accuracy: ±0.5mm (±0.02") • Transmitting frequency: 80GHz • International explosion protection and custody transfer certificates, overfill prevention WHG, SIL