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‡ SIGNET

 2550 InsertionMagmeter

‡ SIGNET 2550 InsertionMagmeter

ENGLISH

3-2550.090

G-12/02 English

1.

Do not remove from pressurized lines!  Do not remove safety ring from sensor.  Unit may become a
dangerous projectile if safety devices are disabled.

2.

Do not open wiring access plate in humid environment.  Moisture in terminal area may cause
instrument failure.

3.

In EDIT mode, all the output functions of the +GF+ SIGNET 2550 Insertion Magmeter are still
active, so the control process is uninterrupted.

4.

The +GF+ SIGNET 2550 Insertion Magmeter weighs 11 lbs.  Care must be taken to properly
support the unit with straps and/or bracing when necessary.

1.

Description

The latest in bipolar pulsed DC technology and the best features of an insertion sensor are packed into the +GF+ SIGNET 2550
Insertion Magmeter.  Simple installation, easy maintenance, and state-of-the-art microprocessor technology make the 2550 the best
alternative to traditional full-line magmeters. The 2550 is based on the Faraday principle, and provides current frequency output signals
proportional to the flow rate.  The system incorporates automatic temperature compensation, resulting in outputs that are accurate
within 

±

2% of actual flow rate.  The bipolar electronic design and the 10000 M

 input impedance reduce galvanic formation on the

electrodes and minimize coating problems.  The isolated current output provides an universal signal to recorders, valves, process
control and data acquisition devices.  The open collector frequency output is compatible with all powered flow controllers.

2.

Specifications

General

Flow Rate Range:

0.1 to 7 m/S (0.3 to 20 ft/s)

Linearity:

±

2% of reading or 0.05 ft/s

(whichever is greater)

Min. Reynolds Number:

4500

Pipe Size Range:

DN50 to DN300 (2 to 12 in.)

Wetted Materials:

• Sensor Body:

316 SS

• Electrodes:

316 SS

• Installation Hardware:    316 SS
• Insulator:

PFA

• Internal O-Ring:

FPM (Viton

®

)

Enclosure:

NEMA4 die cast aluminum

Power Requirements:

24 VDC 

±

10%, 600 mA

Max. Loop Impedance:

600 W, isolated

Frequency Output:

0 to 7m/s (20 ft/s)=0 to 500 Hz isol.,
open collector, 5 to 12VDC
(2K pull-up recommended)

Fluid Condition:

• Temperature:

0 to 100

°

C (32 to 212

°

F)

• Minimum Conductance 5 mS/cm

Required

• Maximum Pressure:

17 bar (250 psi)

• Shipping Weight:

6.7 kg (13.2 lbs.)

• Ambient temperature:

 -20 to 80

°

C (-4 to 176

°

F)

140 mm

 [5.52 in]

218 mm

 [8.60 in]

122 mm

 [4.79 in]

200 mm

 [7.87 in]

Dimensions

Standards and Approvals:

• Manufactured under ISO 9001 and ISO 14001

Summary of Contents for SIGNET 2550

Page 1: ...es automatic temperature compensation resulting in outputs that are accurate within 2 of actual flow rate The bipolar electronic design and the 10000 MΩ input impedance reduce galvanic formation on the electrodes and minimize coating problems The isolated current output provides an universal signal to recorders valves process control and data acquisition devices The open collector frequency output...

Page 2: ... Inlet Outlet 90 elbow Inlet Outlet Measure and record the interior diameter of the pipe This value will be required to calibrate the 2550 Interior diameter ________________________________ 3 3 Sensor Installation with tool WARNING Do not remove safety ring or adjustment nut from sensor The installation tool 3 2550 355 simplifies installation and insures proper insertion depth for maximum accuracy...

Page 3: ...aptive outer cover screws 1 lift off outer cover 2 then loosen two captive screws 3 and remove access plate 4 A wiring diagram is located on the inside of the access plate Five terminal strips are available TS 3 Analog output 4 to 20 mA or 0 to 20 mA output terminal 1 positive R terminal 2 negative R 18 to 22 AWG wire recommended TS 4 Serial communication Future expansion not available in this mod...

Page 4: ...oop Without moisture drip loop Careful cable routing and sealed ports can help prevent water intrusion 3 In plastic piping systems the fluid carries significant levels of static electricity that must be grounded for best magmeter performance Since plastic pipe is not grounded as metal pipes are extra steps must be taken Identify the places where the fluid is in electrical contact with external met...

Page 5: ...played user calibration displayed This basic operating procedure repeats throughout the 2550 program 1 Press RUN EDIT to enter edit menu 2 Press to move to a specific menu item 3 Press ENTER key to select the item for editing 4 Press ENTER to edit the value selection 5 Press ENTER to store the new value selection 6 Press to select another menu item or 7 Press RUN EDIT to return to normal operation...

Page 6: ...r diameter You must enter the precise interior diameter of your pipe as measured during the installation process Entry is made in inches when the dimension entered is less than 40 and automatically switches to millimeters when the dimension entered is greater than 40 To change the id selection enter the access code section 5 2 1 then press the down arrow until the display shows 3 2 1 4 7 6 5 8 9 1...

Page 7: ...tion 5 2 1 then press the down arrow until the display shows ENTER ENTER ENTER ENTER ENTER ENTER ENTER ENTER ENTER ENTER ENTER ENTER ENTER 8 5 4 PerformanceFunctions The next five main menu functions help to tailor the magmeter signals to your specific environment 5 4 1 Sensitivity The sensitivity function limits the amount of reference level noise detected by the Magmeter input circuit Use the St...

Page 8: ...ow to change the setting to 2 The factory default setting for viscosity is 1 3 2 1 ENTER ENTER Step Press To display Viscosity ranges 1 1 cp water 2 2 cp 3 4 cp 4 8 cp 5 N A future expansion Step Press To display Arrow keys advance main menu function Run Edit key returns to normal operation 5 4 4 AC Noise Filter Select 50 Hz or 60 Hz rejection filter according to the AC power standard in your area...

Page 9: ...ground Use the Sensitivity adjustment section 5 4 1 to compensate and check the grounding requirements section 3 2 The standard flow deviation StdF is an overall indication of the stability of the flow signal It incorporates the StdE as 1 2 3 RUN EDIT ENTER well as mechanical factors such as unstable flow profiles misaligned sensors and coated electrodes StdF is displayed as a percentage of flow r...

Page 10: ...40S 8 in 7 98 155 928 590 26 9 62 6 24 2 54 23 61 steel sch 80S 8 in 7 63 142 328 538 77 10 54 5 69 2 78 21 55 PVC sched 80 10 in 9 49 220 605 835 09 6 80 8 82 1 80 33 40 PVC sched 40 10 in 9 98 243 625 922 23 6 16 9 75 1 63 36 89 steel sch 5S 10 in 10 48 268 966 1018 2 5 58 10 76 1 47 40 73 steel sch 10S 10 in 10 42 265 794 1006 1 5 64 10 63 1 49 40 24 steel sch 40S 10 in 10 02 245 779 930 38 6 1...

Page 11: ...33 54 505 44 11 23 5 34 2 97 20 22 PVDF bar 10 250 234 8 209 19 791 78 7 17 8 37 1 89 31 67 PVDF bar 16 63 57 12 33 46 661 121 67 0 49 32 15 1 87 PVDF bar 16 75 67 8 17 44 66 019 86 00 0 70 22 72 2 64 PVDF bar 16 90 81 4 25 14 95 161 59 66 1 01 15 76 3 81 PVDF bar 16 110 99 4 37 49 141 9 40 01 1 50 10 57 5 68 PVC bar 10 63 57 12 33 46 661 121 67 0 49 32 15 1 87 PVC bar 10 75 67 8 17 44 66 019 86 0...

Page 12: ...x 25 130 Hz 5 2 ft s 130 Hz Unit GPM Display 120 GPM 120 GPM 130 Hz A 120 130 0 92 K 60 0 92 65 2 6 Ordering Information Mfr Part No Code Description 3 2550 100 110 159 000 294 Insertion Magmeter with 2 in NPT Fitting 3 2550 100 110T 159 000 632 Insertion Magmeter with 2 in NPT Fitting and Installation Tool 3 2550 100 111 198 840 024 Insertion Magmeter with 2 in ISO Fitting 3 2550 100 111T 198 840...

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