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3.3 General Arrangement 

 
Depicted is a four-point master level control 
unit to show the general arrangement of the 
level control system features.  Configurations 
and numbers of components will vary based 
on level controller model. 

1.

 

Indicator lights (lined up vertically) 

2.

 

Master Pressure Regulator (Master Level 

Controllers ONLY) 

3.

 

Flow Regulator 

4.

 

Differential Pressure Switch 

5.

 

Master Pressure Switch (Master Level 

Controllers ONLY) 

6.

 

Circuit Breaker & Electrical Terminal Blocks 

 

 
 

 

 

2

5

Summary of Contents for 2250048 REV

Page 1: ...E CO Level Control 120 VAC One Two Three and Four Points Operating Manual ...

Page 2: ......

Page 3: ... 3 General Arrangement 5 4 Installation 6 4 1 Electrical 7 4 2 Air Probe 8 4 2 Solenoid Valves 9 5 Operation 10 5 1 Indicator Light color and function 10 5 2 Adjusting Master Air Pressure Switch 10 5 3 Adjusting Regulator Pressure on Master Level Control 11 5 3 Adjusting Flow Regulator 11 5 4 Adjusting Air Differential Pressure Switch for Level 13 5 5 One Point Level Control for Low Level Shut Off...

Page 4: ... CO Level STD 1 PT electrical 20 9 3 2251340 REV E CO Level MSTR 2 PT electrical 21 9 4 2251339 REV E CO Level STD 2 PT electrical 22 9 5 8907225 Master Level Control Three Point electrical 23 9 6 8907224 Standard Level Control Three Point electrical 24 9 7 8907227 Master Level Control Four Point electrical 25 9 8 8907226 Standard Level Control Four Point electrical 26 9 9 Level Control Standard a...

Page 5: ...tion of the unit read these instructions completely If the instructions are not observed the manufacturer can assume no responsibility Do not expose the connecting cable to heat oil or sharp edges Make sure the Unit is securely mounted in an operator accessible area Use only original equipment replacement parts Do not operate the Unit if it has damage Always disconnect the power supply before serv...

Page 6: ...carrier and should be reported to the manufacturer 1 4 Items supplied 1 4 1 E CO Level Control 1 4 2 Equipment Manual 8905238 1 4 3 Standard Master Level Control Installation drawing 8907228 1 5 Features 1 5 1 E CO Level Control MSTR Master Level Control has air filter regulator 1 5 2 E CO Level Control MSTR Master Level Control has master pressure switch for 8 to 25 psig 1 5 3 Air differential fl...

Page 7: ...utomatic tank heater and pump protection may also be controlled by the High Low option Common Uses o Water Tank Level o Liquid Process Tank Level o E Coat Paint Tank Level o Dilution of Liquids by Volume o Sump Pump Operation o Emergency Low Level Alarm o Chemical Bulk Tank and Day Tank o Dirty Screen Alarm Benefits o Provides reliable accurate simple and safe liquid level control o Eliminates Ope...

Page 8: ...enclosure Each level control uses at least one flow control to limit the air volume used and a micro switch to sense the set point and operate the load circuits 3 Technical Data 3 1 Utilities Operating voltage 110 120 VAC 50 60 Hz Air Supply to Master 30 150 psig clean shop air Air Flow Regulation 0 9 2 1 SCFH 3 2 E CO Level Control Unit Overall Mounting Dimensions Level Control Part Number Overal...

Page 9: ...res Configurations and numbers of components will vary based on level controller model 1 Indicator lights lined up vertically 2 Master Pressure Regulator Master Level Controllers ONLY 3 Flow Regulator 4 Differential Pressure Switch 5 Master Pressure Switch Master Level Controllers ONLY 6 Circuit Breaker Electrical Terminal Blocks 1 2 3 4 5 6 ...

Page 10: ...ng 1 Mount the level control assembly 2 Plumb the solenoid valve available from Henkel Corporation to desired water supply line 3 Install the immersion air probe typically 1 pipe supplied by others 4 Install plant air shut off valve and connect plant air to the Master Level Control 5 Install tubing supplied by others from Master Control Regulator to all other Standard Level Controllers 6 Install t...

Page 11: ...ols is supplied from the Master Level Control by daisy chaining and wiring the downstream controllers in parallel to terminals 2 and N in the Master Level Control Load Wiring Each level control units have 1 to 4 pressure switches to control separate loads Terminal connections vary based on the unit being wired The single point controllers the first Load e g solenoid valve is connected to terminals...

Page 12: ... the probes remain firmly in place and be removable for cleaning if needed Ensure that no overhead interferences are present so the probes may be fully removed vertically If the process tank accumulates sludge the tip of the immersion probe must be at least 2 above the maximum expected sludge level Tubing Runs and Fittings Tubing is to be run by the installer from each controller to the respective...

Page 13: ...ain the desired level A Y strainer shall be installed in the upstream side of the solenoid valve and the discharge of the valve should not protrude below the liquid level of the tank Valve construction should always be governed by the liquid passing through it City water uses brass De ionized water or acidic material requires stainless steel or plastic ...

Page 14: ...ir out of regulator X X X X High Level Alarm Red high level condition X X Operating Level Green at operating level X X X X Control Point Amber filling X X X X Low Level Alarm Red low level condition X X X Pump Shut Down Red pump or heater shut down server low level condition X only Master Level Control units have a Master Air Low indicator and internal pressure switch Standard Level Controls do no...

Page 15: ...esired set point of the pressure switch Turn the adjustment wheel counterclockwise until the switch actuates Multi meter should not have continuity or read open circuit infinite ohms Adjust the regulator to lower the pressure until the switch actuates on from the decreasing pressure Multi meter should have continuity or read 0 ohms For a more precise pressure setting increase and decrease pressure...

Page 16: ...s located on the bottom of the flow regulator assembly closest to the outlet Other screw next to it is a cleaning wire furthest from the outlet is to the right of the adjusting needle It may take a couple of adjustments when setting the flow regulator to maintain a minimal bubble rate with an acceptable response to process tank level changes Supply pressure to the flow regulator must be at least 5...

Page 17: ...diaphragm housing Slotted 10 turn adjusting screw will be visible Clockwise rotation of the adjusting screw will increase the switch point raise the process tank level Counterclockwise rotation of the adjusting screw will decrease the switch point lower the process tank level Before adjusting the differential pressure switches the level control air probe must be installed and the bubble rate set T...

Page 18: ...dicator just turning OFF For the Control Point switch Green indicator will be ON and Amber indicator will be OFF 7 Check switch point by adjust the tank fluid level down and up to change indicator state Note tank levels at the indicator state changes 8 For fine tuning switch point level repeat steps 3 through 7 9 Repeat process for next highest process tank level 5 5 One Point Level Control for Lo...

Page 19: ...necessary Adjust Master Regulator Pressure Higher Air lines blocked Remove blockage Air lines collapsed Replace air line Flow regulator blocked Verify Master Regulator pressure setting adjust if needed Clean needle passage of flow regulator with cleaning wire Indicators not turning ON No Power Turn on power Tripped Circuit Breaker Inspect loads and wiring for damage or short circuit repair or repl...

Page 20: ...open NC for normally closed and C for common Faulty Control Circuit check the electrical power supply to the switch Check for loose or blown fuses open circuited or grounded wires loose connections at switch See nameplate for electrical rating and range Incorrect pressure check pressure in system with suitable pressure gauge Pressure must be within the range specified on nameplate Incorrect Adjust...

Page 21: ...sate or dirt on the surface cleaning is necessary It is not necessary to remove the filter from the line for cleaning Before disassembly turn off air supply and depressurize the filter Use household soap to clean the plastic bowl Use alcohol to clean all other filter parts and element Blow out the filter body and blow out the filter element from the inside before reassembly Clean metal bowl and si...

Page 22: ...order of disassembly Make sure not to damage the O rings and diaphragm when reassembling the unit Before any service to the system turn off power and air supply Discharge any stored air 7 4 Differential Pressure Switch The differential pressure switch has an internal spring that can be replaced to change the fluid level switch point adjustment range if necessary Otherwise the differential pressure...

Page 23: ... 0 08 8907229 2 Brown Copper Spring Air Flow Differential Pressure Switch 0 5 to 2 0 0 10 0 12 8907229 5 Yellow Spring Air Flow Differential Pressure Switch 1 5 to 5 0 0 14 0 28 8907229 10 Green Spring Air Flow Differential Pressure Switch 2 0 to 10 0 0 18 0 45 8907229 20 Dark Black Spring Air Flow Differential Pressure Switch 3 0 to 22 0 0 35 0 70 8907229 40 Orange Spring Air Flow Differential Pr...

Page 24: ...20 9 Diagrams 9 1 2251341 REV E CO Level MSTR 1 PT electrical 9 2 2250048 REV E CO Level STD 1 PT electrical ...

Page 25: ...21 9 3 2251340 REV E CO Level MSTR 2 PT electrical ...

Page 26: ...22 9 4 2251339 REV E CO Level STD 2 PT electrical ...

Page 27: ...23 9 5 8907225 Master Level Control Three Point electrical ...

Page 28: ...24 9 6 8907224 Standard Level Control Three Point electrical ...

Page 29: ...25 9 7 8907227 Master Level Control Four Point electrical ...

Page 30: ...26 9 8 8907226 Standard Level Control Four Point electrical ...

Page 31: ...27 9 9 Level Control Standard and Master Installation Drawing 8907228 ...

Page 32: ...cluding where products parts or attachments for use in connection with the Products are available from Henkel the use of products parts or attachments which are not manufactured by Henkel no claim shall be allowed No Products shall be returned to Henkel for any reason without prior written approval from Henkel Products shall be returned freight prepaid in accordance with instructions from Henkel N...

Page 33: ...ocentre SINGAPORE 149598 Henkel China Company Ltd No 928 Zhang Heng Road Zhangjiang Hi Tech Park Pudong Shanghai China 201203 Henkel Loctite Korea 8F Mapo Tower 418 Mapo dong Mapo gu Seoul 121 734 KOREA Henkel Japan Ltd 27 7 Shin Isogo cho Isogo ku Yokohama 235 0017 JAPAN Henkel AG Co KGaA Standort München Gutenbergstraße 3 85748 Garching b München Deutchland www equipment loctite com and designat...

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