1
2
3
4
JP2
FREQUENCY OUT
SERIAL (S
L) OUT
3
Connect output signals and power
to this 4-terminal block.
1.
Sensor Type Pipe Size Jumper Position
2551-P0/T0/V0/W0 ½ in. to 2½ in.
DN15 to DN65
2551-P0/T0/V0/W0 3 in. to 4 in.
DN80 to DN100
2551-P1/T1/V1/W1 5 in. to 6 in.
DN125 to DN150
2551-P1/T1/V1/W1 8 in.
DN200
2551-P2/T2/V2/W2 10 in. to 12 in.
DN250 to DN300
2.
3.
4.
4.
5.
Signet 2551 Magmeter
*3-2551.090*
3-2551.090 Rev G 10/08 English
1. Quick Start Guide
This manual contains the general installation, wiring and calibration data for the Signet 2551-XX-11 Magmeter with Frequency or Serial
data output, and for the Signet 2551-XX-12 Magmeter with Current output. The basic steps are outlined on this page.
See each referenced section for detailed information.
1. Confi gure the Hardware
2551-XX-11 ONLY: Position this Jumper to select
digital (S
3
L) output or Frequency output. (Not used
for Current output version) Sec. 5 Pg. 4
2. Position the PIPE SIZE Jumper according to your
pipe size. Sec. 5 Pg. 4.
3. Install the Magmeter into the pipe.
Use Signet installation fi ttings ONLY.
The installation fi tting is critical to Magmeter
performance. Sec. 3 Pg. 3
4. Connect POWER and OUTPUT wiring.
2551-XX-11 Frequency out: Sec. 8.1 Pg. 6
2551-XX-11 Serial data out: Sec. 8.2 Pg. 6
2551-XX-12 Current out wiring: Sec. 7 Pg. 5
GROUNDING
Without a good Earth Ground, the Magmeter may
not operate effi ciently. Sec. 6 Pg. 5
5. Route the wiring out through the two cable ports.
Use appropriate hardware to secure the 2551 from
moisture intrusion. One Liquid Tight Connector is
included. Sec. 5 Pg. 4
Topic: Page
1. Quick Start Guide 1
2. Specifi cations 2
3. Installation: Pipe Fittings 3
4. Selecting a Location 3
5. Hardware Confi guration 4
6. General Installation and Grounding Tips 5
7. Wiring the Magmeter with 4-20 Loop 5
Topic: Page
8. Wiring the Magmeter
with Frequency or Digital Output 6
9. Calibration and Software Confi guration 6
10. Calibration Data 7
11. Maintenance and Troubleshooting 11
12. Ordering Information 12
English
Description
The Signet 2551 Magmeter is an insertion style magnetic fl ow sensor. The patented sensor design is available in a variety of corrosion-
resistant materials to provide long-term reliability and minimal maintenance costs. Wetted material combinations include PP/316 SS,
PVDF/SS, PVDF/Hastelloy-C, and PVDF/Titanium. The 2551 installs quickly and securely into a wide selection of fl ow fi ttings to deliver
accurate fl ow measurement in pipe sizes ranging from DN15 to DN300 (½ in. to 12 in.).
Signet 2551 Magmeters are available with a frequency output or a 4 to 20 mA output. Signet's digital (S
3
L) output is included with the
Frequency output models for use with the Signet 8900 Multi-Parameter Controller, while the 4 to 20 mA output can be used for a direct
input to a PLC, SCADA or telemetry system.
All 2551 Magmeters feature empty pipe detection and LED-assisted diagnostics. The Signet 3-0250 USB to Digital S
3
L set-up tool is
available to customize every performance feature in the 2551 to adapt it to the specifi c application requirements.
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General