Reference operating conditions - Temperature-25 °C to +55 °C (-13 °F to +131 °F)
Relative humidity (air)60 % ±15 %
Maximum measured error - Absolute accuracybetter than ±1 mm (0.04 in) mm/in
Resolution - Digital0.1 mm
Resolution - Analogue0.03 % of measuring range
Settling time15 sec
Hysteresis0.1 mm
Non-repeatability0.1 mm
Influence of ambient temperature - Zero point (4 mA)average TK: 0.025 %/10 K, max. 0.291 % over the entire temperature range -40 °C
Influence of ambient temperature - Span (20 mA)average TK: 0.07 %/10 K, max. 0.824 % over the entire temperature range -40 °C t
Maximum fill speed100 mm/min., thereafter unlimited
CertificationsOIML R85
Measuring distance with DN100 horn20 m/30 m
Beam angle with parabolic antenna3.3 deg
Measuring distance with parabolic antenna40 m
A68 (2.7) mm (in)
B94 (3.7) mm (in)
C85 (3.4) mm (in)
D124 (4.88) mm (in)
E131 (5.16) mm (in)
L3ø280 mm (11 in) DN50; ø340 mm (13.4 in) DN200; ø405 mm (15.9 in) DN250
L46" 150 mm
Ambient temperature range-40 °C ... +80 °C (-40 °F … +176 °F), -50 °C (-58 °F) on request.
Storage temperature-40 °C … +80 °C (-40 °F … +176°F), -50 °C (-58 °F) on request.
Climate classDIN EN 60068-2-38 (test Z/AD)
Degree of protection• Housing: IP65/68, NEMA 4X/6P
• Antenna: IP65/68, NEMA 4X/6P
Vibration resistanceDIN EN 60068-2-64 / IEC 68-2-64: 20…2000 Hz, 1 (m/s2)2/Hz
Process temperature rangeGLT, -40 °C to +200 °C (-40 °F to 391 °F)
Process pressure limits• Parabolic antenna -1 to 16 bar (-15 to 240 psi)
• Horn antenna -1 to 16 bar (-
Alignment device± 15° inclination seal: FKM Viton GLT
Adapter316L (1.4404)
Adapter (G NPT)316L (1.4404)
Flange316L (1.4404/1.4435)
Ball316L (1.4404)
Screw nut304 (1.4301)
Jammes ring304 (1.4301)
Starting disk304 (1.4301) with slide coating
Pipe316L (1.4404)
Parts for process separation316L (1.4404)
Adapter Horn / Parabolic316L (1.4404)
Horn316L (1.4404)
Reflector316L
Bracket316L
Housing T12, aluminumAlSi10Mg (aluminum, powder-coated)
Clamp304 (1.4301)
Holder1.4310
Material316L
Compatible withDN150 PN10/16, ANSI 6" 150 lbs, JIS 10K 150A
Antenna size100 mm (4")
Distance (D)5 (16) m [ft]
Beam diameter (W)0.70 (2.3) m [ft]
Recommended distance to wall0.89 (2.9) m [ft]
Entry (reset) (0A3) :333 = customer parameters (HART)
Measuring range A0,6 (2) m (ft)
Measuring range B> 0,5 (1.6) m (ft)
Measuring range C> 300 (11.8) mm (in)
Messdistanz20 m/30 m
Abstrahlwinkel (Parabolantenne)3,3°
Messdistanz (Parabolantenne)40 m
Antennengröße200 mm (8") mm (in)
D (mm [in])173 (6,81) mm (in)
H (mm [in])< 200 (7,87) mm (in)
Energieversorgung4-20 mA mit HART
Leistungsaufnahme• max. 400 mW bei 16 V
• max. 600 mW bei 24 V
• max. 750 mW bei 30 V
• Nicht-Ex:
StromaufnahmeMax. 25 mA (55 mA Einschaltstrom)
mA DC16
Ip65
V20 m
A [m (ft)]0,6 (2) m (ft)
B [m (ft)]> 0,5 (1.6) m (ft)
C [mm (in)]> 300 (11.8) mm (in)
Influence of ambient temperature on zero pointaverage TK: 0,025 %/10 K, max. 0,291 % over the entire temperature range -40 °C.
Influence of ambient temperature on spanaverage TK: 0,07 %/10 K, max. 0,824 % over the entire temperature range -40 °C..
Beam angle8°
maximale abgestrahlte Pulsenergie1 mW (mittlere Leistung 1 μW)
Part numberFMR540