This manual provides installation, wiring, calibration, and maintenance instructions for the Signet 2551 electromagnetic flowmeter.
The Signet 2551 is an insertion-style electromagnetic flow sensor designed for long-term reliability with low maintenance costs. It features patented sensor designs available in various corrosion-resistant materials such as PP/316 stainless steel, PVDF/Hastelloy C, and PVDF/Titanium. The device supports pipe sizes from DN15 to DN900 and offers frequency or S³L digital outputs compatible with Signet controllers, or a 4-20mA output for direct connection to PLCs and SCADA systems. This manual is written in Chinese.
| Pipe size range | DN15-DN900 |
|---|---|
| Minimum conductivity | 20 µS/cm |
| Linearity | ±1% of reading + 0.01 m/s |
| Repeatability | ±0.5% of reading @25°C |
| Power requirement (4-20mA) | 21.6-26.4VDC, max 22.1mA |
| Maximum operating pressure (25°C) | 10.3 bar |
The wetted material combinations include PP/316 stainless steel, PVDF/Hastelloy C, and PVDF/Titanium.
The minimum conductivity required is 20 µS/cm.