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GEORGE FISCHER +GF+ SIGNET 2550 Instruction Manual

Insertion magmeter
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+ GF + SIGNET 2550 Insertion Magmeter
Instruction Manual
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Summary of Contents for GEORGE FISCHER +GF+ SIGNET 2550

  • Page 1 + GF + SIGNET 2550 Insertion Magmeter Instruction Manual GEORGE FISCHER + GF +...

  • Page 2: Important Safety Information

    Important Safety Information! CAUTION: Do not remove from pressurized lines! Do not remove safety ring from sensor. Unit may become a dangerous projectile if safety devices are disabled. Do not open wiring access plate in humid environment. Moisture in terminal area may cause instrument failure.

  • Page 3: Table Of Contents

    Table of Contents Chapter 1 Page Introduction 1.1 Description Chapter 2 Installation and wiring 2.1 Sensor location 2.2 Preparing the pipe 2.3 Sensor installation with tool 2.4 Sensor installation without tool 2.5 Wiring 2.6 Grounding requirements 2.7 Installation tips Chapter 3 Operation 3.1 Control panel description 3.2 Main menu...

  • Page 4: Unpacking And Inspection

    Unpacking and Inspection The + GF + SIGNET 2550 Insertion Magmeter package includes the following items: • 3-2550.100 sensor • 3-2550.090 instruction manual • 3-2550.355 installation tool (optional) Please fill out and return the warranty card as soon as possible. The technical information given in this manual is for general information only.

  • Page 5: Introduction

    This manual contains descriptions, specifications, Chapter 1 and instructions for the installation and operation of the + GF + SIGNET 2550 Insertion Magmeter. Introduction Should you require further assistance, please contact your Signet supplier. 1.1 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.

  • Page 6: Installation And Wiring

    Chapter 2 The linearity and accuracy of the 2550 depend on precise alignment and insertion depth of the sensor in the pipe and accurate measurement of Installation the pipe dimensions. The installation tool (3-2550.355) is recommended for best results. and wiring 2.1 Sensor location Select a location for the sensor where the flow profile is fully developed and not affected by any...

  • Page 7: Sensor Installation With Tool

    2.3 Sensor Installation with tool Important Safety Information! The installation tool (3-2550.355) simplifies installation and insures proper insertion depth for maximum accuracy. Do not remove safety 1. Set installation tool angle ring or adjustment nut plate (1A) on pipe next to fitting. from sensor.

  • Page 8: Sensor Installation Without Tool

    2.4 Sensor Installation without tool It is recommended that the installation tool always be used when installing the 2550. If the Important Safety installation tool is not available, follow the Information! instructions below. Pay careful attention to the insertion depth of the sensor in the pipe and the alignment of the electrodes relative to the pipe.

  • Page 9: Wiring

    (1), lift off outer cover (2), then loosen two captive screws (3) and remove access plate (4). A wiring diagram is FLOW GEORGE FISCHER +GF+ located on the inside of the access plate. Five terminal strips are available.

  • Page 10: Grounding Requirements

    2.6 Grounding requirements The 2550, like all magnetic flow sensors, is sensitive to electrical noise which is present in most piping systems. The grounding procedure illustrated below is necessary in all installations to insure proper performance. Connect a local earth ground to the TS5 terminal strip as illustrated (EG1).

  • Page 11: Installation Tips

    2.7 Installation tips 1. Make sure the Filter function is set to the proper value for your AC power source (50 or 60 Hz). (See sec 3.4.4) 2. Allow the magmeter to operate for a period before attempting to calibrate the unit. The elec- tronics require a "settling"...

  • Page 12: Operation

    Chapter 3 3.1 Control panel description Operation 4 digit liquid crystal display: "-- -- -- -- --" indicates reverse flow. All signal outputs are disabled. FLOW ENTER EDIT • The key switches the display from normal EDIT operation (RUN) to EDIT, where the calibration parameters can be modified.

  • Page 13: Main Menu

    3.2 Main menu The menu is constructed in a loop, so you can move forward and backward to select an item. After any item is edited, the display will return to the main menu in the same location where it left EDIT off.

  • Page 14: Access Code

    2550 HIS BASIC OPERATING PROCEDURE REPEATS THROUGHOUT THE PROGRAM 1. P RESS TO ENTER EDIT MENU EDIT 2. P RESS TO MOVE TO A SPECIFIC MENU ITEM 3. P RESS KEY TO SELECT THE ITEM FOR EDITING ENTER 4. P RESS TO EDIT THE VALUE SELECTION...

  • Page 15: Unit

    3.3.1 Unit Six engineering unit options are available in the unit menu. Select one for your flow rate display. Meters per second ft/s Feet per second Liters per second l/min Liters per minute U.S. Gallons per minute Cubic meters per hour To change the engineering unit selection, first enter the access code (section 3.2.1) then press the down arrow until the display shows:...

  • Page 16: Interior Diameter

    3.3.2 Interior 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.

  • Page 17: Current Output

    3.3.3 Current output The current output of the 2550 is set via three settings. Low current specifies the flow rate represented by the minimum current signal (4 or 0 mA). High current is the flow rate repre- sented by the maximum current (20 mA), and current selects a 4 to 20 or a 0 to 20 mA span.

  • Page 18: Performance Functions

    3.4 Performance functions The next five main menu functions help to tailor the magmeter signals to your specific environment. 3.4.1 Sensitivity The sensitivity function limits the amount of refer- ence level noise detected by the Magmeter input circuit. Use the StdE display (sec 3.5.2) to evaluate the amount of reference noise in your system.

  • Page 19: Response Time

    3.4.2 Response time The response time function varies the rate at which the output functions adjust to changes in the input signal. For example, if the response time is set at 10 seconds, the current output will take ten seconds to reflect 95% of any change in flow signal input .

  • Page 20: Viscosity

    3.4.3 Viscosity Viscosity ranges Viscosity changes affect the flow profile in the 1 = 1 cp pipe, and can compromise the accuracy of the water 2550. This function allows you to compensate for viscosity. Select a viscosity setting from 1 to 4. 1 2 = 2 cp represents water, and 2 through 4 represent increasingly viscous fluids.

  • Page 21: Calibration "B

    3.4.5 Calibration "B" The CalB function allows you to compare the 2550 calibration to your own volumetric or alternate flow measurement system. The 2550 Calculate the flow rate by stores this flow rate under the display function RatU measuring the volume output (sec.

  • Page 22: Display Options

    3.5 Display options The last four main menu functions change the displayed information. The first two also change the output values. 3.5.1 Operational outputs The "Rate Electronic" and "Rate User" functions change both the display and the output values in the magmeter.

  • Page 23: Diagnostic Displays

    3.5.2 Diagnostic displays The diagnostic displays are used to evaluate abnormalities in the process stream. • The standard electrical deviation (StdE) is related to the level of electrical fluctuation in the input signal reference. The value is displayed in terms of volts, ie "0.02" represents 20 millivolts. Nominal values range from 50 mV at low velocities to 80 mV at maximum velocity.

  • Page 24: Frequency Output

    3.6 Frequency output The frequency output from the 2550 is an open collector signal that requires a 5 to 12 VDC reference. Black (+V) 5 to 12 VDC in 2KΩ Red (Signal out) Shield (Ground) 2550 TS 2 3.6.1 Product compatibility The frequency output of the 2550 is compatible with all +GF+Signet flow instruments.
  • Page 25 Pipe type pipe pipe gpm/fps lpm/fps size pls/gal gpm/Hz pls/l lpm/Hz PVC sched 80 3.5 in. 3.33 27.0803 102.51 55.39 1.08 14.63 4.10 PVC sched 40 3.5 in. 3.52 30.3488 114.88 49.43 1.21 13.06 4.60 steel sch 5S 3.5 in. 3.83 35.9843 136.22 41.68 1.44...
  • Page 26 DIN Standard Plastic Pipe Pipe type pipe pipe gpm/fps lpm/fps size pls/gal gpm/Hz pls/l lpm/Hz PP bar 10 51.4 10.02 37.943 149.63 0.40 39.53 1.52 PP bar 10 61.2 14.21 53.791 105.55 0.57 27.89 2.15 PP bar 10 73.6 20.55 77.797 72.98 0.82 19.28...

  • Page 27: Custom K-Factor Calculation

    3.8 Custom K-factor calculation K-factors can be calculated for any pipe using the pipe id and the ft/s engineering unit options. The procedure is based on the relationship between the frequency output and the flow velocity: 20 ft/s = 500 Hz. therefore 1 ft/s = 25 Hz. Example illustrates calculating 1.

  • Page 28: Spare Parts List

    3.9 Spare parts list Code 1. Access cover 3-2550.374 198 840 211 2. Gasket, outer cover 1222-0439 198 840 212 3. Cable connector (standard) for .125 to .187 o.d. cable 1500-0101 Cable connector (optional) for .187 to .250 od cable 1500-0102 4.

  • Page 29: Specifications

    Specifications General Data Flow velocity range: 0.1 to 6 m/s (0.3 to 20 ft/s) ± 2% of reading or Accuracy: ±0.05 ft/s whichever is greater ≤0.015% per °C Temperature coefficient: Pipe size: 51 to 305 mm (2 to 12 in.), metal or plastic Response time: User Selectable:...
  • Page 30 Materials Enclosure: Die cast aluminum, Nema 4/IP65 Sensor body: 316 stainless steel Sensor tip: Electrodes: 316 stainless steel Retaining ring: 316 stainless steel Threaded nut: 316 stainless steel Internal o-ring: FPM Viton ® Electrical Data 24 VDC ±10%, Power Requirements: 600 mA Recommended power supply (or equivalent): Model no.
  • Page 31 Ambient Conditions Humidity: 100% RH, non-condensing 0 to 100 °C Liquid temperature: (32 to 212 °F) -20 to 80 °C Ambient temperature: (-4 to 176 °F) 5 µS/cm Minimum liquid conductivity: Maximum operating pressure: 17 bar (250 psig)

  • Page 32: Warranty Information

    Warranty Limited Two-Year Warranty Signet Scientific Company warrants its instruments to be free from defects in material and workman- ship under normal use for a period of two years from the date of purchase by the initial owner, or three years from date of manufacture, whichever comes first, as described in the following para- graphs.
  • Page 33 Signet Scientific Company shall have the sole right to determine whether in fact a warranty situation exists. Signet Scientific Company is continually making design changes and improvements that adapt to the original circuit configuration. These will be incorporated as required in older units on a minimal charge basis while under warranty.
  • Page 34 NOTES:...
  • Page 36 Signet Scientific Company, 3401 Aerojet Avenue, El Monte, CA 91731-2882 U.S.A. Tel. (626) 571-2770 • Fax (626) 573-2057 For Worldwide Sales and Service, visit our website: gfsignet.com In the U.S. call (800) 854-4090 GEORGE FISCHER +GF+ Piping Systems Printed in U.S.A. on Recycled Paper © Scientific Company 1999...

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