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Introduction Safety notes Description SITRANS F Installing/Mounting Electromagnetic flowmeters SITRANS FMS500 Connecting Service and maintenance Operating Instructions Diagnostics and Troubleshooting Technical specifications Product documentation and support Appendix 7ME653 (SITRANS FMS500 with FMT020) 01/2024 A5E52677520-AA...
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Note the following: WARNING Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems.
4. Check the scope of delivery by comparing your order to the shipping documents for correctness and completeness. WARNING Using a damaged or incomplete device Risk of explosion in hazardous areas. • Do not use damaged or incomplete devices. SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
Siemens’ products and solutions undergo continuous development to make them more secure. Siemens strongly recommends that product updates are applied as soon as they are available and that the latest product versions are used. Use of product versions that are no longer supported, and failure to apply the latest updates may increase customer’s exposure...
The content reflects the technical status at the time of publishing. Siemens reserves the right to make technical changes in the course of further development.
• National Electrical Code (NEC - NFPA 70) (USA) • Canadian Electrical Code (CEC Part I) (Canada) Further provisions for hazardous area applications are for example: • IEC 60079-14 (international) • EN 60079-14 (EU and UK) SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
Material compatibility Siemens Flow Instruments can provide assistance with the selection of wetted sensor parts. However, the full responsibility for the selection rests with the customer and Siemens Flow Instruments can take no responsibility for any failure due to material incompatibility.
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Safety notes 2.3 Conformity with PED directive and PESR regulation Siemens Flow Instruments products confirm to PED by following the tables below. Table 2-1 PED Compliance for fluids under 100 °C (PED classification: liquids) EN 1092, ANSI B16.5, AWWA C207, AS4087 and JIS2220 flanges...
• Only carry out modifications that are described in the instructions for the device. Failure to observe this requirement cancels the manufacturer's warranty and the product approvals. Do not operate the device after unauthorized modifications. SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
• Power generation & distribution • Oil & gas / HPI • Water & waste water • Pulp & paper System components The SITRANS FMS500 sensor is compatible with: • Transmitter (type: SITRANS FMT020) SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
3.3 Theory of operation Design The SITRANS FMS500 is an electromagnetic flow sensor designed to meet the requirements in ground water, drinking water, waste water, sewage or sludge applications. With its coned design, increased low-flow accuracy is achieved making it especially useful for leak detection. It is suitable for direct burial and constant flooding.
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The input impedance is extremely high: >10 Ω which allows flow measurements on fluids with conductivities as low as 5 µS/cm. Measuring errors due to cable capacitance are eliminated due to active cable screening. SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
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Description 3.3 Theory of operation SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
Note Install the sensor in well-supported pipelines in order to support the weight of the flowmeter. Vibrations Avoid strong vibrations. Figure 4-1 Avoid vibrations SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
Installing/Mounting 4.3 Determining a location CAUTION In applications with strong vibrations, Siemens recommends remote mounting of the transmitter! Determining a location Note The sensor must always be completely filled with liquid. Figure 4-2 Correct installation with filled pipes • Avoid the following installations –...
U-tube. Installation in large pipes The flowmeter can be installed between two reducers (for example DIN 28545). At α ≤ 8° the following pressure drop curves apply. The curves are applicable to water. SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
The calibrated flow direction is marked by the arrow on the sensor. Flow in this direction is indicated as positive by default. The accuracy of the sensor does not change with reverse flow. Figure 4-6 Flow direction indicator SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
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Installing/Mounting 4.5 Orienting the sensor Orientation The sensor operates in all orientations, but Siemens has the following recommendations: • Vertical installation with an upwards flow Figure 4-7 Vertical orientation, upwards flow NOTICE Abrasive liquids / liquids containing solid particles A vertical installation minimizes wear and deposits in the sensor...
• Install the sensor in rigid pipelines in order to support the weight of the meter. • Center the connecting pipelines axially in order to avoid turbulent flow profiles. • Use proper gaskets according to liner type (not included). ① Sensor ② Gasket ③ Process connection ④ Nuts Tightening SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
This is achieved by means of built-in grounding electrodes. Figure 4-9 Potential equalization with earthing electrodes Cathodic protected piping Special attention must be paid to systems with cathodic protection. WARNING Use in hazardous area! Cathodic pipe protection is not allowed in hazardous areas SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
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If the above is not acceptable, remote mounted sensors can alternatively be connected as follows: • Connect coil current cable shield at sensor end via a 1.5 µF condensator • Make sure that electrode cable shield is not connected at both ends SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
A switch or circuit breaker (max. 15 A) must be installed in close proximity to the equipment and within easy reach of the operator. It must be marked as the disconnecting device for the equipment. SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
See also Cable data (Page 48) Connecting the sensor Before you start • Read the Safety notes (Page 9) • Read the Basic safety notes: Installing/mounting • Read the Basic safety notes: Connecting SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
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3. The terminal board with premounted terminal blocks is included in the delivery of the wall mounting unit. Mount the sensor terminal board in the sensor terminal box. Tighten completely with maximum torque: 1 Nm. SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
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Tighten all terminal screws with maximum torque: 0.5 Nm. 6. Connect the coil and electrode cable shields and grounding cables to the terminal board by using grounding lugs. SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
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Connecting 5.2 Connecting the sensor 7. Remount terminal box lid by cross tightening as indicated. Do not tighten fully at first to avoid damage to the device. 8. To obtain optimum sealing, tighten cable glands. SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
Connect mains protective ground earth to PE terminal in accordance with diagram (due to class 1 power supply). WARNING High vibration environment Use relay output only in NO mode in an environment with high vibration. SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
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If internal resistance of a load exceeds 10 kΩ, connect an external 10 kΩ load resistor in parallel to this load. Note Mains frequency Select the right mains frequency in parameter 2.1.2 for the mains supply frequency, that you are using. For input and output specification refer to Technical specifications (Page 45). SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
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5.3 Electrical connection Connection board overview ① ③ Electrode cable terminals Input/Output and communication terminals ② ④ Coil cable terminals Power supply terminal Power supply Current output Table 5-1 Current output Active output Passive output SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
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Relay output Table 5-3 Relay output Terminal Description R_NC Normally closed Common R_NO Normally open Communication cable Ca, Cb, Cc, Cd, Ce, Cf are reserved for communication modules as described in FMT020 Operating Instructions (http://www.siemens.com/processinstrumentation/documentation). SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
Electrode and coil cable Figure 5-2 Electrode cable with individual wire shields Installation check The meter is now ready to go into normal operation - for commissioning and setting of parameters refer to the relevant transmitter manual. SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
• Let cure for approximately 24 hours at approximately 25°C (77°F). Curing time increases by 100% per -10°C (-18°F). Horizontal orientation Vertical orientation Note Gel can be penetrated with test instruments or be removed in case of cable replacement. SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
This will ensure correct matching with SENSORPROM unit. WARNING Electrical cable identification Use suitable coil and electrode cables Lay electrical cable identification tape above pea gravel before it is covered with earth. SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
Siemens defines flow sensors as non-repairable products. WARNING Impermissible repair and maintenance of the device • Repair and maintenance must be carried out by Siemens authorized personnel only. Technical support If you have any technical questions about the device described in these Operating Instructions and do not find the right answers, you can contact Customer Support: •...
• Information about field service, repairs, spare parts and lots more under Services. Additional Support If you have additional questions about the device, please contact your local Siemens representative and offices at: Local contact person (http://www.automation.siemens.com/partner) Transportation and storage To guarantee sufficient protection during transport and storage, observe the following: •...
To return a product to Siemens, see Returns to Siemens (www.siemens.com/returns-to- siemens). Contact your Siemens representative to clarify if a product is repairable, and how to return it. They can also help with quick repair processing, a repair cost estimate, or a repair report/ cause of failure report.
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Service and maintenance 6.5 Disposal SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
A low megger reading would indicate the coil insulation is breaking down. This is usually due to fluid ingress into the coil housing. Sensors with an insulation resistance down to 1 MΩ may still work satisfactorily but this is not guaranteed. SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
DN 80 to 150 (3" to 6"): • 6.25 Hz / 7.5 Hz DN 200 to 300 (8" to 12"): • 3.125 Hz / 3.75 Hz DN 350 to 1200 (14" to 48"): • 1.5625 Hz / 1.875 Hz SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
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0.01 to 16 bar (0.15 to 232 psi) Enclosure rating Standard IP66/67, NEMA 4X/6 Optional IP68 and NEMA 6P (2m, 10 days) for sensor in remote design IP68 and NEMA 6P (10m, continuously) for sensor in remote design SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
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Housing and flange material Carbon steel, with corrosion resistant coating of corrosive cat‐ egory C4 or C5, according to ISO 12944-2 Measuring pipe AISI 304 (1.4301) Electrodes Hastelloy Grounding electrodes (standard) Hastelloy Terminal box Polycarbonate SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
6 Ω Cable glands on sensor M20x1.5 gland - Cable ø 5 to 13 mm (0.20 to 0.51 inches) and transmitter ½ NPT gland - cable ø 5 to 9 mm (0.20 to 0.35 inches) SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
Liner selection Liner Applications EPDM Drinking water applications (not hydrocarbons) General purpose, sea waters Electrode selection Electrodes Hastelloy C The preferred choice for water and wastewater, chemicals, food and beverage, and pharmaceutical industries SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
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Max. measuring range: 0 to 10 m/s (0 to ft/s) Normally the sensor size is selected so that the nominal flow velocity v lies within the measuring range 1 to 3 m/s (1 to 15 ft/s). SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
[ft/s] or V = [ft/s] (Pipe ID) [inch] (Pipe ID) [inch] Dimensions and weight Figure 8-1 FMS500 with FMT020 Dimensions Table 8-10 Nominal size A Nominal size NBR or EPDM liner inch inch ½ 1½ 2½ SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...
– "Download as html5, only PC": Open or save the manual in the HTML5 view on your PC You can also find manuals with the Mobile app at Industry Online Support (https:// support.industry.siemens.com/cs/ww/en/sc/2067). Download the app to your mobile device and scan the device QR code. Product documentation by serial number Using the PIA Life Cycle Portal, you can access the serial number-specific product information including technical specifications, spare parts, calibration data, or factory certificates.
(http:// www.siemens.com/automation/csi/service). Service & support on the Internet In addition to our technical support, Siemens offers comprehensive online services at service & support (http://www.siemens.com/automation/service&support). Contact If you have further questions about the device, contact your local Siemens representative, by doing the following: 1.
The SENSORPROM automatically stores values or settings changed by users, and automatically re-programs any new transmitter without loss of accuracy. SITRANS FMS500 Operating Instructions, 01/2024, A5E52677520-AA...