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Enovation Controls Murphy DF Series, Инструкция по установке и эксплуатации, Страница: 2 / 16

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In order to consistently bring you the highest quality, full featured products, we reserve the right to change our 

specifications and designs at any time. The latest version of this manual can be found at www.fwmurphy.com. 

 

 

Please read the following information before installing.   

BEFORE BEGINNING INSTALLATION OF THIS MURPHY 

PRODUCT: 

Read and follow all installation instructions. 
Please contact Enovation Controls immediately if you have any 

questions. 

 

 

1-800-548-1191 - http://www.partdeal.com - info@partdeal.com

Содержание Murphy DF Series

Страница 1: ...00 02 0831 2013 03 21 Section 15 DFSeriesHydrostaticHeadLevel Switches Installation and Operations Manual 1 800 548 1191 http www partdeal com info partdeal com ...

Страница 2: ...me The latest version of this manual can be found at www fwmurphy com Please read the following information before installing BEFORE BEGINNING INSTALLATION OF THIS MURPHY PRODUCT Read and follow all installation instructions Please contact Enovation Controls immediately if you have any questions 1 800 548 1191 http www partdeal com info partdeal com ...

Страница 3: ... Operation 1 Typical Applications 3 Water Flood Control Systems 3 Low Pressure Gas Blanket on Tank 3 Typical Wiring Diagrams 4 Installation of a Volume Air Cell 6 Overview 6 Specifications 8 Service Parts 9 1 800 548 1191 http www partdeal com info partdeal com ...

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Страница 5: ...ttom plate This is a highly reliable level switch and can be worked into almost any new or existing system without major modification or special tools The DF755 and DF757 are suitable for atmospheric tanks in non hazardous areas The SPDT snap switch for the DF755 is preset for a 4 in 102 mm differential in liquid level The DF757 trip point is adjustable over a 108 in 2743 mm range Basic Operation ...

Страница 6: ...nobs see the following drawings 2 To increase the low level set point rotate the lower knob counterclockwise NOTE If the adjustment shaft turns when rotating the adjustment knobs firmly grasp the adjustment shaft with a pair of needle nose pliers and then rotate the knob 1 800 548 1191 http www partdeal com info partdeal com ...

Страница 7: ...edetermined level DF 5 stops the transfer pump As tank level falls to the set low level DF 6 starts the transfer pump If the tank level continues to fall due to the failure of the filters section DF 7 initiates shutdown of the transfer pump A DF755 located at this level will also operate backwash equipment DF 8 stops the injection pump before tank pumps completely out An OPL Series Pressure SWICHG...

Страница 8: ... switches Starts at Low Level Stops at High Start motor when pre determined low level is reached and stop when high level is reached Keeps tank level within selected limits Motor starter is equipped with Hands Off Auto HOA Starts at High Level Stops at Low Start motor when pre determined high level is reached and stop when low level is reached Motor starter equipped with HOA 1 800 548 1191 http ww...

Страница 9: ... level Shown at right Wire to Normally Closed NC terminal to shutdown on low level Dual Magneto Shutdown Shutdown dual magneto engines using a Murphy MS2120 Magnetic Switch Diagram at right shows hookup for low level shutdown Wiring changes and mounting locations are necessary for high level shutdowns 1 800 548 1191 http www partdeal com info partdeal com ...

Страница 10: ...me sufficient pressure is applied to activate the internal snap switch this starts the pump As the liquid level is pumped down pressure decreases the snap switch reverses and the pump stops The pump is held in a standby condition An air purge may be required in the sensor line For additional information consult Enovation Controls Choosing a Volume Cell The volume cell should be constructed of mate...

Страница 11: ...nstall the DF755 well above the highest water level and in a position that allows access for adjustment or repairs NOTE Periodically operate the pump manually until the water level reaches a point approximately in 13mm below the bottom of the Volume Cell This automatically recharges the unit and compensates for normal absorption of air into water Small electric air pumps are available to automatic...

Страница 12: ...480 VAC 1 2 A 125 VDC 1 4 A 250 VDC DPDT optional 10 A 28 VDC 10 A 120 230 VAC Case Lid Aluminum standard Bottom Plate Glass filled Nylon Process Connection 1 NPT standard Maximum Pressure Rating 25 psi 172 kPa 1 72 Bar Conduit Connection electrical 1 2 NPT 1 800 548 1191 http www partdeal com info partdeal com ...

Страница 13: ... connection 15050083 Bracket and movement repair kit 15000313 SPDT snap switch and insulator repair kit 5 amp 15000121 DF757 Description Part Number Cover aluminum 15050081 Case aluminum 15050594 Cover Screw 3 6 32 x 5 16 round head 80040607 SPDT snap switch and bracket assembly repair kit 5 amp 15000174 Screws 2 for switch bracket and assembly to case 6 32 x 1 4 round head 80040605 Spring and pis...

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Страница 16: ...1 800 548 1191 http www partdeal com info partdeal com ...

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