Products Solutions Services Technical Information Micropilot FMR20 Free space radar Level measurement for liquids Application • • • • • • Ingress protection: IP66/68 / NEMA 4X/6P Measuring range: up to 20 m (66 ft) Process temperature: –40 to 80 °C (–40 to 176 °F) Process pressure: –1 to 3 bar (–14 to 43 psi) Accuracy: up to ± 2 mm (0.
Micropilot FMR20 Table of contents Important document information . . . . . . . . . . . . . . . 3 Symbols for certain types of information . . . . . . . . . . . . . . Safety symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electrical symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Symbols in graphics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 3 3 Terms and abbreviations . . . . . . . . . . . . . . . . . . . . . 5 Registered trademarks . . . . . .
Micropilot FMR20 Important document information Symbols for certain types of information Symbol Meaning Permitted Procedures, processes or actions that are permitted. Preferred Procedures, processes or actions that are preferred. Forbidden Procedures, processes or actions that are forbidden. Tip Indicates additional information.
Micropilot FMR20 Symbol 4 Meaning - Hazardous area Indicates a hazardous area. . Safe area (non-hazardous area) Indicates the non-hazardous area. V. 5, Rev.
Micropilot FMR20 Terms and abbreviations Term/abbreviation Explanation BA Document type "Operating Instructions" KA Document type "Brief Operating Instructions" TI Document type "Technical Information" SD Document type "Special Documentation" XA Document type "Safety Instructions" PN Nominal pressure MWP Maximum Working Pressure The MWP can also be found on the nameplate.
Micropilot FMR20 Product life cycle Engineering • • • • • • • • Proven radar measuring technology Level- and open channel flow measurement for Ex and non-Ex Indication of over-flooding situation Wide range of installation possibilities and accessories Highest degree of ingress protection 2D / 3D drawings Spec Sheet Producer Applicator Selection tool for the selection of the perfect measurement solution Device not compatible with transmitters and sensors of ultrasonic measurement technology (e.g.
Micropilot FMR20 Measuring principle The Micropilot is a "downward-looking" measuring system, operating based on the time-of-flight method (ToF). It measures the distance from the reference point R to the product surface. Radar impulses are emitted by an antenna, reflected off the product surface and received again by the radar system.
Micropilot FMR20 Input Measured variable The measured variable is the distance between the reference point and the product surface. The level is calculated based on E, the empty distance entered. Measuring range Maximum measuring range Device Maximum measuring range FMR20 with 40 mm (1.5 in) antenna 10 m (33 ft) FMR20 with80 mm (3 in) antenna 20 m (66 ft) Requirements of the installation • • • • • • recommended tank height > 1.5 m (5 ft) or media with low DC value Open channel minimum width 0.
Micropilot FMR20 Output Output signal 4 to 20 mA An 4 to 20 mA interface is used for measured value output and to power to the device. Digital output HART® • Signal encoding; FSK ±0.5 mA over current signal • Data transmission rate;1 200 Bit/s Bluetooth® wireless technology (available as an optional extra) The device has a Bluetooth® wireless technology interface and can be operated and configured via this interface using the SmartBlue app.
Micropilot FMR20 Electrical connection Cable assignment 1 + - 2 A0028954 2 1 2 Supply voltage Cable assignment Plus, brown wire Minus, blue wire An external power supply is necessary. Terminal voltage U at device 10.5 to 30 VDC 2-wire Maximum load R, depending on supply voltage U0 of power supply unit R [W] 500 0 10 10.5 20 21.75 30 U0 [V] A0029226 Potential equalization No special measures for potential equalization are required.
Micropilot FMR20 Power supply failure The configuration remains stored in the sensor. Connection FMR20, 4 to 20 mA HART Circuit diagram / Description FMR20 connection with HART communication, voltage source and 4 to 20 mA display 1 2 3 Y I + + - mA A0028908 3 1 2 3 FMR20 block diagram, HART Micropilot FMR20 HART resistance Power supply The HART communication resistor of 250 Ω in the signal line is always necessary in the case of a low-impedance power supply.
Micropilot FMR20 FMR20 with RIA15 (incl. option for basic configuration FMR20) The RIA15 remote display can be ordered together with the device.
Micropilot FMR20 FMR20, RIA15 with installed HART communication resistor module The HART communication module for installation in the RIA15 can be ordered together with the device. Product structure, feature 620 "Accessory enclosed": Option R6 "HART communication resistor hazardous / non-hazardous area" The voltage drop to be taken into account is: Max.
Micropilot FMR20 Performance characteristics Reference operating conditions • • • • • Temperature = +24 °C (+75 °F) ±5 °C (±9 °F) Pressure = 960 mbar abs. (14 psia) ±100 mbar (±1.45 psi) Humidity = 60 % ±15 % Reflector: metal plate with diameter ≥ 1 m (40 in) No major interference reflections inside the signal beam Maximum measured error Typical data under reference operating conditions: DIN EN 61298-2, percentage values in relation to the span.
Micropilot FMR20 Response time Influence of ambient temperature 1) The response time can be configured. The following step response times (as per DIN EN 61298-2) 1) apply if the damping is switched off: Tank height Sampling rate Response time < 20 m (66 ft) 1 s-1 <3s The measurements are carried out in accordance with EN 61298-3. • Digital (HART, Bluetooth® wireless technology): Standard version: average TK = ± 3 mm (0.12 in)/10 K • Analog (current output): – Zero point (4 mA): average TK = 0.
Micropilot FMR20 Installation Installation conditions Installation types A B C D A0030605 9 A B C D Wall, ceiling or nozzle installation Wall or ceiling mount, adjustable Mounted at front thread Mounted at rear thread Ceiling installation with counter nut (included in delivery) Caution! • The sensor cables are not designed as supporting cables. Do not use as a suspension wire.
Micropilot FMR20 Orientation BD A D A0028410 11 Tank installation position • If possible install the sensor so that its lower edge projects into the vessel. • Recommended distance A wall - nozzle outer edge: ~ 1/6 of the tank diameter D. However, the device must not under any circumstances be mounted closer than 15 cm (5.91 in) to the tank wall. • Do not mount the sensor in the center of the tank. • Avoid measurements through the filling curtain.
Micropilot FMR20 Alignment 90 90 ° ° • Align the antenna vertically to the product surface. • Align the eyelet with the mounting eye as well as possible towards the tank wall. ° 90 90 ° 90 ° A0028927 12 18 Sensor alignment when mounting in tank V. 5, Rev.
Micropilot FMR20 Beam angle D α W = 2 x D x tan _ 2 α W A0029053-EN 13 Relationship between beam angle α, distance D and beam diameter W The beam angle is defined as the angle α, at which the power density of the radar waves reaches half the value of the maximum power density (3dB width). Microwaves are also emitted outside the signal beam and can be reflected off interfering installations. Beam diameter W as a function of beam angle α and distance D. FMR20 Antenna size 40 mm (1.5 in) 40 mm (1.
Micropilot FMR20 Measurement in plastic vessels If the outer wall of the vessel is made of a non-conductive material (e.g. GFR) microwaves can also be reflected off interfering installations outside of the vessel (e.g. metallic pipes (1), ladders (2), grates (3), ...). Therefore there should be no such interfering installations in the signal beam. For more information, please contact Endress+Hauser.
Micropilot FMR20 Free-field measurement with flooding protection tube The flooding protection tube guarantees a definitive analysis of the maximum level even in the event that the sensor is completely flooded. In free-field installations and / or in applications where there is a risk of flooding, the flooding protection tube must be used. 2 2 3 1 1 3 4 4 A0031093 16 1 2 3 4 Function of flooding protection tube Air pocket O-ring (EPDM) seal Blocking distance Max.
Micropilot FMR20 Installation with mounting bracket, adjustable A0030606 17 Installation with mounting bracket, adjustable • Wall or ceiling installation is possible. • Using the mounting bracket, position the antenna so that it is perpendicular to the product surface. NOTICE There is no conductive connection between the mounting bracket and transmitter housing. Risk of electrostatic charge. ‣ Integrate the mounting bracket in the local potential equalization system.
Micropilot FMR20 Environment Ambient temperature range Measuring device: –40 to +80 °C (–40 to +176 °F) It may not be possible to use the Bluetooth connection at ambient temperatures > 60 °C (140 °F). Outdoor operation in strong sunlight: • Mount the device in the shade. • Avoid direct sunlight, especially in warmer climatic regions. • Use a weather protection cover → 38.
Micropilot FMR20 Process Process temperature, process pressure FMR20 p [bar (psi)] 3 (43.5) 0 -1(-14.5) Tp -40 0 (+32) +80 (+176) [°C (°F)] A0029007-EN 19 Feature 100 "Process connection" Process temperature range Process pressure range • • • • –40 to +80 °C (–40 to +176 °F) prel = –1 to 3 bar (–14.5 to 43.
Micropilot FMR20 Mechanical construction Dimensions 40 mm (1.5 in) antenna with G 1-1/2" or MNPT 1-1/2" thread ø75 (2.95) B 26 (1.02) 20 (0.79) 28 (1.1) 112 (4.4) 140 (5.
Micropilot FMR20 40 mm (1.5 in) antenna with G 2" or MNPT 2" thread ø75 (2.95) B 26 (1.02) 20 (0.79) 28 (1.1) 112 (4.4) 140 (5.
Micropilot FMR20 40 mm (1.5 in) antenna with flooding protection tube 264 (10.4) !75 (2.95) !89 (3.5) A0030266 22 Dimensions 40 mm (1.5 in) antenna with mounted flooding protection tube, engineering unit: mm (in) Applies to the following device versions • Feature 100 "Process connection front side" WFE: Thread ISO228 G1-1/2; PVDF • Feature 620 "Accessory enclosed" Option R7 "Flooding protection tube, metallized PBT-PC suitable for 40 mm (1.5 in) antenna with process connection on front G1-1/2".
Micropilot FMR20 Applies to the following device versions Feature 095 "Process connection rear side" – VCE: Thread ASME MNPT1; PVDF; FNPT 1/2" conduit connection – WDE: Thread G1 ISO228; PVDF; cable gland 28 V. 5, Rev.
Micropilot FMR20 80 mm (3 in) antenna with flooding protection tube ø75 (2.95) 20 (0.79) 26 (1.02) B G 1" NPT 1" 322 (12.68) 28 (1.1) A !97,3 (3.83) !138,1 (5.
Micropilot FMR20 178 (7) 80 mm (3 in) antenna with UNI slip-on flange 3"/DN80 ø75 (2.95) ø115.6 (4.55) ø156.2 (6.15) ø200 (7.87) 9 (0.36) 18.5 (0.73) 8x ø21 (0.
Micropilot FMR20 80 mm (3 in) antenna with slip-on flange 6"/DN150 30.5 (1.2) 20 (0.79) 188 (7.4) 8x 23 (0.91) ø163 (6.42) ø98 (3.86) ø240 (9.45) ø241.3 (9.5) ø285 (11.
Micropilot FMR20 Materials B A 4 3 2 1 5 6 7 4 5 6 7 3 2 1 8 8 9 9 A0028416 29 A B Connecting cable FMR20 materials 40 mm (1.5 in) antenna 80 mm (3 in) antenna Item Component part Material 1 Sensor housing PVDF 2 Seal EPDM 3 Process connection rear side PVDF 4 Cable gland PA 5 Conduit connection adapter CuZn, nickel-plated 6 O-ring EPDM 7 Counter nut PA6.
Micropilot FMR20 Operability Operating concept • 4 to 20 mA, HART • Menu guidance with brief explanations of the individual parameter functions in the operating tool • Optional: SmartBlue (app) via Bluetooth® wireless technology Via Bluetooth® wireless technology 3 2 1 A0028895 30 1 2 3 Possibilities for remote operation via Bluetooth® wireless technology Transmitter power supply unit Smartphone / tablet with SmartBlue (app) Transmitter with Bluetooth® wireless technology Via HART protocol 4 +
Micropilot FMR20 Certificates and approvals CE mark The measuring system meets the legal requirements of the applicable EC guidelines. These are listed in the corresponding EC Declaration of Conformity together with the standards applied. Endress+Hauser confirms successful testing of the device by affixing to it the CE mark. RoHS The measuring system complies with the substance restrictions of the Restriction on Hazardous Substances Directive 2011/65/EU (RoHS 2).
Micropilot FMR20 Note: A partial examination shall be performed for pressure instruments that are part of safety equipment for the protection of a pipe or vessel from exceeding allowable limits (equipment with safety function in accordance with Pressure Equipment Directive 2014/68/EU, Article 2, point 4). EN 302729-1/2 radio standard The Micropilot FMR20 devices comply with the LPR (Level Probing Radar) radio standard EN 302729-1/2.
Micropilot FMR20 Country Hungary Name of the station Latitude Longitude Robledo 40°25'38" North 04°14'57" West Penc 47°47'22" North 19°16'53" East As a general rule, the requirements outlined in EN 302729-1/2 must be observed. FCC / Industry Canada This device complies with Part 15 of the FCC Rules [and with Industry Canada licence-exempt RSS standard(s)].
Micropilot FMR20 Other standards and guidelines • IEC/EN 61010-1 Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use • IEC/EN 55011 "EMC Emission, RF Emission for Class B". Industrial, scientific and medical equipment – Electromagnetic disturbance characteristics - Limits and methods of measurement • IEC/EN 61000-4-2 EMC Immunity, ESD (Performance Criteria A).
Micropilot FMR20 Accessories Weather protection cover 90 (3.54) 90 (3.54) Device-specific accessories Ø 98 (3.86) Ø 98 (3.86) A0028841 32 Dimensions of weather protection cover, engineering unit: mm (in) Werkstoff: PVDF The weather protection cover can be ordered with the device (product structure, feature 620 "Accessory enclosed", option R1 "weather protection cover"). Alternatively it can be ordered separately as an accessory; order number 52025686.
Micropilot FMR20 Suitable for use with devices with G 1-1/2" and MNPT 1-1/2" process connection. Material: PC Order number: 52014146 G 2" 10 (0.39) Securing nut G 2" 70 mm A0029101 34 Dimensions of securing nut, engineering unit: mm (in) Suitable for use with devices with G 2" and MNPT 2" process connection on front. Material: PC Order number: 52000598 Flooding protection tube 40 mm (1.
Micropilot FMR20 Flooding protection tube 80 mm (3 in) antenna, metallized PBT-PC 136,5 (5.37) !138,1 (5.44) !97,3 (3.83) A0031094 For use with devices in product structure, feature 100 "Process connection on front", option XR0 "Customer mounting device without flange". Material: PBT-PC, metallized The flooding protection tube can be ordered with the device. Product structure, feature 620 "Accessory enclosed", option R8 "Flooding protection tube, metallized PBT-PC suitable for 80 mm (3 in) antenna.
Micropilot FMR20 20 D UNI flanges G A B C A0031103 36 Dimensions of UNI flange, engineering unit: mm Product A structure (mm) Feature 620 "Accessory enclosed" Option: B (mm) C (mm) D (mm) E F Number of bores G Product structure Feature 95 "Process connection on front" Option: RA 120 UNI flange 2"/DN50/50, PP, on front 125 165 19 90° 4 VEE Thread ASME MNPT 1-1/2" FAX50-XIGG RA 120 UNI flange 2"/DN50/50, PP, on front 125 165 19 90° 4 WFE Thread ISO228 G 1-1/2" FAX50-XIGC RA 120
Micropilot FMR20 Product A structure (mm) Feature 620 "Accessory enclosed" Option: B (mm) C (mm) D (mm) E F Number of bores G Product structure Feature 95 "Process connection on front" Option: RA 120 UNI flange 2"/DN50/50, PP, on front 125 165 19 90° 4 WGE Thread ISO228 G 2" RB 120 *UNI flange 2"/DN50/50, PP, on rear 125 165 19 90° 4 VCE Thread ASME MNPT 1" FAX50-XIGF RB 120 *UNI flange 2"/DN50/50, PP, on rear 125 165 19 90° 4 WDE Thread G 1" ISO228 FAX50-XIGB RD 150 UNI flang
Micropilot FMR20 Product A structure (mm) Feature 620 "Accessory enclosed" Option: B (mm) C (mm) D (mm) E F Number of bores G Product structure Feature 95 "Process connection on front" Option: G Accessory Product order code structure Feature 100 "Process connection on rear" Option: RG 175 UNI flange 4"/ DN100/100, PP, on front 190.5 228.6 19 45° 8 WGE Thread ISO228 G 2" RH 175 UNI flange 4"/ DN100/100, PP, on rear 190.5 228.
Micropilot FMR20 Cantilever with pivot Installation type sensor process connection rear side A B 1 1 3 2 A0028885 38 A B 1 2 3 Installation type sensor process connection rear side Installation with cantilever and wall bracket Installation with cantilever and mounting frame Cantilever Wall bracket Mounting frame 20 (0.8) C 20 (0.8) A 35 (1.4) D 35 (1.4) B 15 (0.6) 6.5 (0.3) 22 (0.9) 35 (1.4) C 105 (4.1) 75 (2.9)75 (2.9)100 (3.9) M8 50 25 (1.0) 100 (3.9) (2.
Micropilot FMR20 Installation type sensor process connection on front A B 1 1 2 3 A0028886 40 A B 1 2 3 Installation type sensor process connection on front Installation with cantilever and wall bracket Installation with cantilever and mounting frame Cantilever Wall bracket Mounting frame 20 (0.8) C 20 (0.8) A 35 (1.4) D B 35 (1.4) 15 (0.6) 6.5 (0.3) 22 (0.9) 50/62 (2.0/2.4) C 105 (4.1) 75 (2.9)75 (2.9)100 (3.9) M8 25 (1.0) 50 (2.0) 100 (3.
Micropilot FMR20 A B C D Weight Sensor,process connection front side Material Order No. 585 mm (23 in) 250 mm (9.84 in) 2 mm (0.08 in) 200 mm (7.87 in) 1.9 kg (4.19 lb) 1-1/2" Steel, hot-dip galvanized 52014131 316Ti (1.4571) 52014132 Steel, hot-dip galvanized 52014135 316Ti (1.4571) 52014136 Steel, hot-dip galvanized 52014133 316Ti (1.4571) 52014134 Steel, hot-dip galvanized 52014137 316Ti (1.4571) 52014138 2" 1 085 mm (42.7 in) 750 mm (29.5 in) 3 mm (0.12 in) 300 mm (11.
Micropilot FMR20 Wall bracket for cantilever with pivot 3.2 (0.1) ø33.7 (1.3) 25 (1.0) ~88 (3.5) 150 (5.9) 13 (0.5) 110 (4.3) 6.5 (0.3) ~213 (8.4) 180 (7.1) 5 (0.2) 110 (4.3) 150 (5.9) A0019350 43 Dimensions of wall bracket, engineering unit: mm (in) Material Weight Order No. Steel, galvanized 1.4 kg (3.09 lb) 919792-0000 316Ti (1.4571) 919792-0001 Ceiling mounting bracket 75 1.5 185 105 12 ø5.
Micropilot FMR20 RIA15 in the field housing (incl. option for basic configuration FMR20) 55.5 (2.19) 81.5 (3.21) 106.5 (4.19) 131 (5.16) mm (in) A0017722 45 Dimensions of RIA15 in field housing, engineering unit: mm (in) The RIA15 remote display can be ordered together with the device.
Micropilot FMR20 A0020844 Endress+Hauser 1. Disconnect plug-in terminal block. 2. Insert the terminal block into the slot provided on the HART communication resistor module. 3. Insert the HART communication resistor in the slot in the housing. V. 5, Rev.
Micropilot FMR20 Communication-specific accessories Accessories Description Commubox FXA195 HART For intrinsically safe HART communication with FieldCare / DeviceCare via USB interface. For details, see Technical Information TI00404F Accessories Description HART Loop Converter HMX50 Is used to evaluate and convert dynamic HART process variables to analog current signals or limit values.
Micropilot FMR20 Service-specific accessories Accessory Description FieldCare / DeviceCare Endress+Hauser's FDT-based Plant Asset Management tool. Helps to configure and maintain all field devices of your plant. By supplying status information it also supports the diagnosis of the devices. For details refer to Operating Instructions BA00027S and BA00059S.
Micropilot FMR20 Supplementary documentation The following document types are available in the Download Area of the Endress+Hauser Internet site: www.endress.
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