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Rosemount
Rosemount 8705 Flanged Magnetic Flow Meter Sensors
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Rosemount 8705: flanged mag sensor; ½–36 in; to 0.15%/0.25% with matched TX. RFQ.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Measuring range
Line sizes ½–36 in (15–900 mm); volumetric flow velocity typically to ~39 ft/s (12 m/s) with paired transmitter
Accuracy
Up to 0.15% of volumetric flow rate over 13:1 turndown; 0.25% over 40:1 (with matched transmitter/high-accuracy option)
Accuracy % FS
0.25
Output
Sensor coil/electrode signals to Rosemount 8700-series transmitters (4–20 mA HART, Fieldbus, etc. on transmitter)
Supply
Powered via paired Rosemount magnetic flow transmitter
Process connection
Flanged ASME Class 150–2500; DIN PN 10–40; AS 2129; AWWA C207 (size-dependent)
Fits flanged magmeter sensing where you need a Rosemount 8705. Flanged magnetic flow sensor for line sizes ½–36 in (15–900 mm) with volumetric velocity typically to about 39 ft/s when paired with a transmitter, and system accuracy up to 0.15% of rate over 13:1 turndown (0.25% over 40:1) with matched transmitter/high-accuracy options.
Key advantages
- Sizes — ½–36 in (15–900 mm)
- Form — Flanged mag sensor
- Accuracy — To 0.15% rate (13:1) with matched TX
- Turndown — 0.25% over 40:1 class
- Velocity — Typically to ~39 ft/s
Typical applications
- Process liquid magmeters.
- Water / chemical lines.
- Flanged conductive flow.
Selection guide
- Size / liner / electrodes
- Matched transmitter
- Grounding rings
Common mistakes
- Non-conductive media.
- Unmatched TX accuracy claim.
- Missing inlet run.
When to RFQ / what to tell us
- Size/liner/TX.
- Quantity, ship-to.
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Specs
| Spec | Value |
|---|---|
| SKU | 47472 |
| Brand | Rosemount |
| Model | 8705 Flanged Magmeter |
| Product type | Magnetic Flow Meter Sensor |
| Measuring range | Line sizes ½–36 in (15–900 mm); volumetric flow velocity typically to ~39 ft/s (12 m/s) with paired transmitter |
| Accuracy | Up to 0.15% of volumetric flow rate over 13:1 turndown; 0.25% over 40:1 (with matched transmitter/high-accuracy option) |
| Accuracy percent FS | 0.25 |
Documents
FAQ
Q: Size range? A: ½–36 in.
Q: Accuracy? A: Up to 0.15% rate with matched TX.
Q: What should I send for a quote? A: Size/liner/TX, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Measuring range | Line sizes ½–36 in (15–900 mm); volumetric flow velocity typically to ~39 ft/s (12 m/s) with paired transmitter |
| Accuracy | Up to 0.15% of volumetric flow rate over 13:1 turndown; 0.25% over 40:1 (with matched transmitter/high-accuracy option) |
| Accuracy % FS | 0.25 |
| Output | Sensor coil/electrode signals to Rosemount 8700-series transmitters (4–20 mA HART, Fieldbus, etc. on transmitter) |
| Supply | Powered via paired Rosemount magnetic flow transmitter |
| Process connection | Flanged ASME Class 150–2500; DIN PN 10–40; AS 2129; AWWA C207 (size-dependent) |
| Electrical connection | Removable/replaceable terminal block; conduit entries per coil housing configuration |
| Wetted parts | Liners: PTFE, PFA, ETFE, PEX, polyurethane, neoprene, Linatex; electrodes: 316L, nickel alloy, Pt, Ta, Ti |
| Housing | Welded sealed coil housing (carbon steel / SST fabrication) |
| Protection | IP68 submergence protection (recommended with sealed cable glands) |
| Media temperature | Depends on liner material selection (see PDS liner tables) |
| Ambient temperature | Per sensor/transmitter ambient tables in PDS/manual |
| Pressure type | other |
| Display | none on sensor (display on paired transmitter) |
| Communication | Via paired 8700 Series transmitter protocols |
| Approvals | Hazardous-location approvals by option code; interchangeable with 8700 Series transmitters |
| Hazardous area | Approvals by model option (N5/K5/N6/KU etc.) |
| Mounting | Inline flanged magmeter sensor; compact or remote transmitter mount |
| Notes | Specs from Emerson PDS 00813-0100-4444 (8700M platform covering 8705 flanged sensor). Sensor-only SKU; accuracy stated with matched transmitter. |
| Overpressure Limit | Flange rating limited (Class/PN by size) |