Key facts
- Brand
- Signet
- Model
- 2551
- Category
- Industrial Robot
- Industry
- Industrial
- Documents
- 4
- Languages
- EN · ZH · PT
- Last added
- 2026-11-07
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Signet 2551 Blind Magmeter User Manual
The Signet 2551 Blind Magmeter is an insertion-style magnetic flow sensor designed for long-term reliability and minimal maintenance. It is available in various corrosion-resistant wetted material combinations, including PP/316 SS, PVDF/Hastelloy-C, and PVDF/Titanium. The device measures flow in pipe sizes ranging from DN15 to DN900 (½ in. to 36 in.) and features empty pipe detection and LED-assisted diagnostics.
Read onlineSignet 2551 specifications
| General Pipe size range | DN15 to DN 900 (0.5 in. to 36 in.) |
|---|---|
| Flow Range Minimum | 0.05 m/s (0.15 ft/s) |
| Flow Range Maximum | 10 m/s (33 ft/s) |
| Linearity | ± 1% reading plus 0.01 m/s (0.033 ft/s) |
| Repeatability | ± 0.5% of reading @ 25 °C (77 °F) |
| Min. Conductivity | 20 μS/cm |
| Operating Temperature Ambient | -10 °C to 70 °C (14 °F to 158 °F) |
| Maximum Operating pressure | 10.3 bar @ 25 °C (150 psi @ 77 °F) |
All Signet 2551 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Mounting, wiring and first power-up. Read it before the hardware goes in.
Questions answered in these manuals
What wetted material combinations are available for the Signet 2551?
Wetted material combinations include PP/316 SS, PVDF/Hastelloy-C and PVDF/Titanium.
What are the power requirements for the 4 to 20 mA output?
The 4 to 20 mA output requires 21.6 to 26.4 VDC with a maximum current of 22.1 mA.
What materials are available for the wetted parts of the Signet 2551?
The wetted material combinations include PP/316 stainless steel, PVDF/Hastelloy C, and PVDF/Titanium.
What is the minimum conductivity required for accurate measurement?
The minimum conductivity required is 20 µS/cm.
What materials are available for the sensor body and electrodes?
The sensor body and electrodes are available in PP/316 stainless steel 316, PVDF/Hastelloy-C, and PVDF/Titanium.
From: Signet 2551 In-Line Magnetic Flowmeter Installation Guide
What is the maximum operating pressure of the 2551?
The maximum operating pressure is 10.3 bar at 25°C (150 psi at 77°F).
From: Signet 2551 In-Line Magnetic Flowmeter Installation Guide