Greyline Instruments DFS 5.1 Скачать руководство пользователя страница 6 | Manualshive

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Page 6

DFS 5.1 Doppler Flow Switch

DFS 5.1 DOPPLER FLOW SWITCH CALIBRATION

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Содержание DFS 5.1

Страница 1: ...www greyline com USER S GUIDE Installation Operation Instructions Doppler Flow Switch Model DFS 5 1 Manual Series 1 4 ...

Страница 2: ...Note This page has been left blank intentionally ...

Страница 3: ...TROL APPLICATIONS 14 APPLICATIONS HOTLINE 15 PRODUCT RETURN PROCEDURE 15 SPECIFICATIONS 17 APPENDIX A OPTIONS 18 APPENDIX B 20 IMPORTANT NOTE This instrument is manufactured and calibrated to meet product specifications Please read this manual carefully before installation and operation Any unauthorized repairs or modifications may result in a suspension of the warranty Available in Adobe Acrobat ...

Страница 4: ...itter receiver unit electronic circuitry to separate the Doppler frequency from the transmitted frequency and an adjustable set point relay The relay also has hysterisis and delay off capability The DFS 5 1 Flow Switch is housed in a watertight NEMA4X fiberglass enclosure and requires a 115VAC power supply Flow measurement range is 0 25 to 10 ft second 0 076 to 3 m sec ...

Страница 5: ...ot apply power until sensor connections have been made Note Tx Transmitter Rx Receiver Nc Normally closed contacts No Normally open contacts C Common ADJUSTMENTS Bar Graph Display The green LED s indicate flow velocity The red LED indicates relay energized see chart for calibration Relay Trip Point Insert shorting link at the flow rate indicated by the bar graph display A second link can be insert...

Страница 6: ...Page 6 DFS 5 1 Doppler Flow Switch DFS 5 1 DOPPLER FLOW SWITCH CALIBRATION ...

Страница 7: ...Page 7 DFS 5 1 Doppler Flow Switch DFS 5 1 DOPPLER FLOW SWITCH CALIBRATION ...

Страница 8: ...s Elbows flanged connections and tees tend to introduce desirable conditions of an evenly distributed flow profile with some air or gases entrained in the flow Sensor mounting 6 diameters upstream and 10 diameters downstream from these disturbances is generally optimum The transducer is designed to mount longitudinally on a straight section of pipe Do not attempt to mount it on bends elbows or fit...

Страница 9: ...imilar to toothpaste on a toothbrush is ideal Press the sensor on to the pipe and secure with the clamp DO NOT over tighten For proper operation the transducer must be fixed securely to the pipe with coupling material between the transducer face and the pipe Sensor installation with excessive coupling compound or use of epoxy can result in gaps or voids in the coupling and cause errors or loss of ...

Страница 10: ...Page 10 DFS 5 1 Doppler Flow Switch SENSOR COUPLING AND MOUNTING RECOMMENDATIONS ...

Страница 11: ...ding is provided by connecting grounding wires from all conduit entries to a steel mounting plate or another point which provides continuity PRINCIPLE OF OPERATION Greyline Doppler flow instruments continuously inject sound into the flowing liquid and measure the change in frequency of any echoes received from suspended particles air bubbles etc in the liquid The sound frequency of 640 000 wave le...

Страница 12: ... With a multimeter perform resistance checks for each set of wires One single loose terminal may cause false readings Test across shield and core of each wire TMTR black white and RCVR black Resistance should be around 82 5K ohms for any cable length High readings indicate an open circuit and low readings indicate a short or partial short in the sensor cable ...

Страница 13: ...ains minimal solids or gases may be more sensitive to external noise ELECTRICAL INTERFERENCE High voltage sources or DC motors in very close proximity to the Doppler sensor cable or electronics can interfere with the Doppler signal Stray mains voltage 50 or 60 Hz can occasionally be measured on conductive pipes and care should be taken to eliminate the problem at its source POWER LINE FLUCTUATIONS...

Страница 14: ...Page 14 DFS 5 1 Doppler Flow Switch TYPICAL DFS 5 1 CONTROL APPLICATIONS ...

Страница 15: ...mail to obtain an RMA number Returned Merchandise Authorization This ensures fast service and correct billing or credit When you contact Greyline please have the following information available 1 Model number Software Version 2 Serial number 3 Date of Purchase 4 Reason for return description of fault or modification required 5 Your name company name address and phone number 2 Clean the Sensor Prod...

Страница 16: ... with a copy of your invoice This warranty does not cover damages due to improper installation or handling acts of nature or unauthorized service Modifications to or tampering with any part shall void this warranty This warranty does not cover any equipment used in connection with the product or consequential damages due to a defect in the product All implied warranties are limited to the duration...

Страница 17: ...witch selectable Indication Relay and Signal strength LED s Sensitivity Automatic Power Input 100 240VAC 50 60Hz 2 0 W max Optional 12 24VDC 3 0 W max Surge Protection sensor AC power input STANDARD SENSOR SE4 Minimum Pipe Diameter 0 5 12 5 mm ID 0 6 15 mm OD Maximum Pipe Diameter 180 4 5 m ID Operating Temperature 40 to 300 F 40 to 150 C Operating Frequency 640 KHz Sensor Housing Stainless Steel ...

Страница 18: ...d or shortened Use only Greyline shielded coaxial pair cable Extended sensor cable can be installed in conduit for mechanical protection Recommended installation with a JB2X junction box is illustrated below Note Instead of Greyline Option DXC shielded coaxial pair you may substitute RG174U coaxial cable from your local electrical cable distributor but this cable is not shielded so extended cable ...

Страница 19: ...ENSOR CABLE JUNCTION BOX OPTION JB2X Optional Watertight NEMA4 Junction Boxes with terminal strips are available from Greyline Instruments 24VDC POWER INPUT OPTION DC DFS 5 1 DC Flow Switches are factory configured for 12 24VDC power input ...

Страница 20: ...0408 x pipe I D ft sec U S gallons min 2 448 x pipe I D ft sec Imp gallons sec 0 0340 x pipe I D ft sec Imp gallons min 2 040 x pipe I D ft sec Litres sec 0 1545 x pipe I D ft sec Litres min 9 270 x pipe I D ft sec Cubic metres sec 0 0001545 x pipe I D ft sec Cubic metres min 0 00927 x pipe I D ft sec EXAMPLE 3 ID pipe Known Flow of 160 US gallons min 160 7 26 ft sec 2 448 x 3 ...

Страница 21: ...1281 1 16921 6 22562 2 28202 7 33843 2 39483 8 45124 3 50764 8 56405 4 Pipe Velocity in Feet per Second ID in 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 0 19 0 20 0 0 5 6 7 7 3 8 0 8 6 9 2 9 8 10 4 11 0 11 6 12 2 0 8 15 1 16 5 17 9 19 3 20 7 22 0 23 4 24 8 26 2 27 5 1 0 26 9 29 4 31 8 34 3 36 7 39 2 41 6 44 1 46 5 49 0 1 3 42 1 45 9 49 7 53 6 57 4 61 2 65 0 68 9 72 7 76 5 1 5 60 6 66 1 71 6 77 1 82 6 8...

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