Dwyer UFC User Manual

Series UFC Ultrasonic Flowmeter KitInstallation and Operating InstructionsBulletin F-UFC©Copyright 2012 Dwyer Instruments, Inc. Printed in USA 9/12

1: General Description6 1.4.3 Power supplyMains supplyAs standard, the UFC instrument is designed to work with a mains supply of 86 to 236 Vac and 5

2: Installation 72: Installation2.1 Safety Precautions and Warnings2.2 Installing the UFC Instrument2.2.1 Positioning the instrumentThe UFC instr

2: Installation8 2.2.2 Mounting the instrumentIdeally, the UFC enclosure should be fixed to a wall using three screws – see Figure 2.2.1. Remove th

2: Installation 92.2.3 Connecting the instrumentAll cables enter the instrument through the (4) cable glands located at the bottom of the instrument

2: Installation10 2.3 Installing the Ultrasonic Transducers2.3.1 Transducer positioningFigure 2.2 Locating the transducersFigure 2.3 Transducer

2: Installation 11To obtain the most accurate results, the condition of both the liquid and the pipe wall must be suitable to allow the ultrasound t

2: Installation12 Type ‘A’ or ‘B’ transducers are attached to the pipe using the adjustable transducer holder assembly shown in Figure 2.4. The tran

2: Installation 13.7. Connect the upstream signal cable (red) to the other transducer, then lower the transducer assembly through the rectangular op

2: Installation14 10. Finally, lock the thumb screws in position by fitting the two supplied locknuts.11. Ensure the transducer signal cables are c

2: Installation 15Figure 2.12 Transducer mounting for diagonal mode of operation45°UpstreamHINT: An easy way to draw a perpendicular circumference

3: Operating Procedures16 3: Operating ProceduresQUICK START Enter dataAttach sensorsFLOW READINGCarry out any necessary calibration (Paragraph 3.

3: Operating Procedures 173.1 Setting-up the Instrument3.1.1 Using the instrument for the first timeInitial user language selectionThe first time y

3: Operating Procedures18 3.1.2 Changing the user languageIf you want to change the user language at any time after the instrument has been put int

3: Operating Procedures 193. Enter the pipe outside diameter dimension, then press ENTER.4. Enter the pipe wall thickness dimension, then press ENTE

3: Operating Procedures20 8. If a lining thickness value was entered earlier, this screen is displayed to request that you enter the lining material

3: Operating Procedures 21Selecting the operating modeOn large pipes using either type ‘B’ or ‘D’ sensors it may be necessary to use the ‘Diagonal’

3: Operating Procedures22 units by pressing keys 7 (liters), 8 (Gallons, Barrels) or 9 (m³), or change the display to show velocity by pressing key

3: Operating Procedures 23±0.005m/s (possibly higher on smaller diameter pipes). If a greater figure is shown, it is worth cancelling the offset to

3: Operating Procedures24 4. Press the Options key to access the FLOW READING OPTION screen shown.5. Scroll down and select Calibration factor then

3: Operating Procedures 253.3.4 Adjusting the roughness factorThe roughness factor compensates for the condition of the internal pipe wall, as a ro

iTable of Contents1: General Description 11.1 Introduction 11.2 Principles of Operation 21.3 Supplied Hardware 31.4 UFC Instrument 41.4.1 Connec

3: Operating Procedures26 1. Press the Options key to access the FLOW READING OPTION screen shown.2. Scroll down and select Damping (secs) and press

3: Operating Procedures 273.4 OutputsThe UFC has configurable Current, Pulse, and Alarm outputs.3.4.1 Current outputNote: Where long cable runs are

3: Operating Procedures28 8. Connect a calibrated ammeter to the 4 to 20 mA output and adjust the UP/DOWN Scroll keys (Coarse) and LEFT/RIGHT Scroll

3: Operating Procedures 29How to convert the measured current to flow rateAssume the maximum flow rate is Fmax (gal/min) and the minimum flow rate F

3: Operating Procedures30 How to turn the pulse output OFF/ON7. With the instrument operating in the FLOW READING mode, press the Pulse function key

3: Operating Procedures 31Alarm configuration1. To setup Alarm 1, select Alarm1 Mode and press ENTER. This will access the ALARM1 MODE menu screen (

3: Operating Procedures32 Resetting an alarmWhen either Alarm1 or Alarm2 is activated, the appropriate relay will be held in the closed position unt

3: Operating Procedures 333.5 How to Measure Totalized Flows (manually)The basic measurement indicated on the FLOW READING screen is the instantaneo

3: Operating Procedures34 3.6 Display of totalizersNote: This menu selection only affects the Display of the totalizer. Unless the totalizers are st

3: Operating Procedures 353. Select Alarm 1 Mode and press ENTER to select the ALARM1 MODE menu shown below:4. Scroll down to Frequency and press E

ii 3.4 Outputs 273.4.1 Current output 273.4.2 Pulse output 293.4.3 Alarm outputs 303.5 How to Measure Totalized Flows (manually) 333.6 Display of

4: Data Logging36 4: Data Logging4.1 How to Set Up the Basic Logging Application to MemoryThis procedure shows you how to set up a basic logging s

4: Data Logging 371. Press the Logger function key as described above to switch to the REAL TIME LOGGER screen. 2. Select View log as text.Stop logg

4: Data Logging38 4.2 How to Set Up Automatic (Timed) Logging ModeThis procedure shows you how to set up an auto logging session under timed start/s

4: Data Logging 39Monitoring the logged eventsThis is described in detail in Paragraph 4.1. If, while operating in FLOW READING mode, you wish to v

4: Data Logging40 The downloaded CSV file formatThe data download file is in a Comma Separated File (CSV) format that can be imported directly into

5: Maintenance & Repair 415: Maintenance & Repair5.1 IntroductionThis instrument does not contain any user-serviceable parts. The followin

6: Troubleshooting42 6: Troubleshooting6.1 OverviewIf you have a problem with your flow monitoring system it can be due to any of the following:Fa

6: Troubleshooting 43• Very hot pipe almost turns water to steam and therefore exhibits the wrong speed characteristics –could be due to reduced pip

6: Troubleshooting44 6.3 Warning and Status MessagesFLOW RATE ERRORSERR:No flow signal Interpretation: This message appears when the transducers can

6: Troubleshooting 454-20mA ERRORSCalibration 20mA Error! NOTE: The 4 to 20 mA output is calibrated before the instrument leaves the factory and sho

1: General Description 11: General Description1.1 IntroductionThis manual describes the operation of the Dwyer UFC flowmeter. The flowmeter is des

6: Troubleshooting46 6.4 Diagnostics DisplayThis feature is designed for advanced users and is intended to provide information that will aid the use

6: Troubleshooting 47Fluid propagation rateThis is the sound speed of the fluid calculated using the data entered by the user. Sensor separationThe

7: Options48 7: Options7.1 Large Pipe Diameter TransducersType ‘D’ transducers are available for use with pipe diameters in the range 59 to 197 in

8: Specification 498: SpecificationGENERALDSP Measurement Technique: Transit time.Timing Resolution: 50 pico-second, continuous signal level indic

8: Specification50 TRANSDUCER SETSStandard: Temperature Range -4°F to +275°F (-20°C to +135°C).'A-ST' (standard) 0.5 to 4.5 inches (13 to

8: Specification 51ELECTRICALSupply Voltage:Mains Input Voltage: 86 to 264 Vac.Mains Input Frequency: 47 to 63 Hz.Power Consumption: 10.5 W.Alternat

8: Specification52 SHIPPING INFORMATIONBox Dimensions: 18.9 in x 12.6 in x 6in.Weight: 9.9 lb.Volumetric Weight: 8.4 lb.Dwyer reserve the right to a

1: General Description2 Note: In addition to the 'A' and 'B' type sensors, type 'D' sensors (option) are available for

1: General Description 3the instrument’s microprocessor can use the results of the transit time calculations to compute the fluid flow velocity. Onc

1: General Description4 separate case and includes the type 'D' transducers together with ratchet straps and holders for attaching the tra

1: General Description 51.4.2 KeypadThe instrument is configured and controlled via a 15-key tactile membrane keypad, as shown in Figure 1.4.Figure