Model V10 Flotect® Mini-Size Flow Switch Specifications
Contents
1. 535 498 m e 23 5 21 2 23 1 21 2 701 71628 693 637 a A 31 29 1 31 29 1 946 7 883 935 867 2 Full 9 5 9 1 9 5 9 2 Full 50 2 48 4 50 2 47 7 36 34 4 36 34 1 1422 1370 1422 1352 Phone 219 879 8000 Fax 219 872 9057 www dwyer inst com e mail info dwyer inst com REED SWITCH PROTECTION CIRCUIT INFORMATION BULLETIN READ INFORMATION BELOW BEFORE INSTALLING YOUR NEW REED SWITCH CONTROL Exceeding the current capacity of this Reed Switch control may cause FAULTY OPERATION Be aware of the inductive and capacitive or lamp loads you may be placing on you Reed Switch Control The circuits below outline possible solutions to preventing overloads due to inrush or surge currents exceeding maximum or when the switch current and product of the inductive back EMF exceed the switch s power rating Also the circuit for prevention of overload when switching filament lamps low cold resistance is outlined below Failure to follow these measures to protect Reed Switch Contacts may cause the contacts to weld together or result in premature wear Possible Circuit Solutions Indicated by Dashed Lines Inductive Loads f DIODE SUPPRESSION VARISTER PROTECTION RC SUPPRESSION Possible causes N An electromagnetic relay electromagnetic c lao Lewi f yf solenoid electromagnetic counter with inductive Wo i INDUCTIVE i i o INDUCTIVE ircui LOAD component as circuit load oies LOAD INDUCTIVE y wie R Joms A LOAD l E WA 5 USE2. freight prepaid to the address below Please include an explanation of the problem plus any available application information W E Anderson Division Dwyer Instruments Inc 250 Highgrove Road Grandview MO 64030 PHYSICAL DATA Temperature Limit 200 F 93 C maximum Operating Pressure Brass body 1000 psig 69 bar maximum Stainless steel body 2000 psig 138 bar maximum Piping Connection 1 2 male NPT Switch Hermetically sealed single pole single throw reed switch Field adjustable between normally open and normally closed Electrical Ratings 1 54 24 VDC resistive 0 001A 200 VDC resistive 0 5A 120 VAC Wire 22 AWGx18 inches 460 mm long Switch Body Choice of standard brass or optional 303 stainless steel Reed Switch Housing Polypropylene Vane 301 stainless steel 7 16 wide x 020 thick 11x 51 mm Wetted Materials 301 302 and 316 stainless steel ceramic 8 magnet brass or optional 303 stainless steel body Installation Install with index arrow pointing in direction of flow Can be mounted in any position Weight 4 2 ounces 128 grams Overall Length 5 25 inches 133 mm Cold Water Flow Rates Air Flow Rates Approximate actuation deactuation Approximate actuation deactuation GPM upper LPM o SCFM aoe LPM D Bee ai Trim N O N C Pipe Trim Trim N 0 TE EE T 9 8 8 7 9 8 9 5 291 7 250 288 260 E RER Feel 11 7 10 2 11 7 10 6 368 3 328 365 328 18 2 17 __ 18 2 16 7 543 3 498
3. Bulletin E 26 Model V10 Flotect Mini Size Flow Switch Specifications Installation and Operating Instructions INSTALLATION 1 Carefully unpack switch and remove any packing material from lower housing Trim the vane at the appropriate mark for the size of pipe being used See actuation deactuation chart CAUTION Mechanical shock or vibration can cause permanent damage to the reed switch Take care to avoid dropping the unit on hard surfaces or impacting the switch assembly 2 Apple pipe thread sealant tape or pipe thread sealant to the 1 7 male NPT mounting threads and install switch in the system piping with the arrow on side pointing in the direction of flow 3 Connect wiring in accordance with local electrical codes NOTE the Ys NPT fitting is not a conduit connection and any loading on this fitting can adversely affect switch operation Also any rigid connection to this fitting will prevent adjustment of switching action between normally open and normally closed 4 Inductive capacitive and lamp loads can all create conditions harmful to the reed switch A Inductive loads can be caused by electromagnetic relays electromagnetic solenoids and electromagnetic counters all with inductive components as the circuit load B Capacitive loads can be caused by capacitors connected in series with or parallel to the reed switch In a closed circuit the cable length 150 ft or more to the switch can introduce a capacitan
4. D IN ian 7 PIV DIODE gt V REED REED SWITCH l l l Capacitive Loads Possible causes A capacitor connected in series or parallel with SURGE LIMITER FOR RESISTOR PROTECTION INDUCTIVE PROTECTION FOR p P CAPACITANCE IN SERIES FOR CAPACITIVE LOAD CABLE LENGTH o Reed Switch control In a closed circuit a cable length usually greater than 50m 162 5 ft used V to connect reed switch may also introduce static capacitance L 0 5 5 mH ge REED V TN x lt v V LOAD REED SWITCH SWITCH SWITCH Cable Length 3 over 50 Tha a0 tL gt un 162 5 it Lamp Loads Possible causes A tungsten filament lamp load CURRENT LIMITING RESISTOR CURRENT LIMITING RESISTOR IN SERIES IN PARALLEL Qa App S at REED a REED SWITCH SWITCH gt 5 hl ITCH p l Do not subject reed switch control to excessive shock and vibration including e Bending or placing force loads on reed switch housing e Over torquing fittings on reed switch housing e Placing pull out force on load wires Copyright 2010 Dwyer Instruments Inc Printed in U S A 7 10 FR 82 440783 00 Rev 5 W E ANDERSON DIV DWYER INSTRUMENTS INC Phone 219 879 8000 www dwyer inst com P O BOX 358 MICHIGAN CITY INDIANA 46361 U S A Fax 219 872 9057 e mail info dwyer inst com
5. ce C Lamp loads can be caused by switching lamp filaments which have low cold resistance In addition to these causes exceeding any of the maximum electrical ratings can lead to premature or immediate failure This includes inrush and surge currents greater than the maximum switching current Use caution when evaluating system loads and current To accommodate these conditions see diagrams on the reverse which depict possible solutions 5 After installation set the switch action to NO normally open or NC normally closed Normally closed contacts open and normally open contacts close when increasing flow actuates the reed switch To change loosen but do not remove the two screws on the top cap Slide the reed switch assembly to expose the switch action selected Tighten screws when adjustment is complete W E ANDERSON DIV DWYER INSTRUMENTS INC P O BOX 358 MICHIGAN CITY INDIANA 46361 U S A TOP VIEW 2 1 4 87 TRAVEL TO mal is CLOSED POSITION ra a 2 22 AWG LEADWIRES 18 460 LONG 1 8 NPT SWITCH SHOWN IN NORMALLY OPEN POSITION 2 7 8 73 NORMALLY OPEN LOWER BODY 7 8 HEX 1 2 NPTM 27 6 62 NORMALLY CLOSED VANE MAINTENANCE Following final installation of the Model V10 Flow Switch no routine maintenance is required A periodic check to confirm proper actuation deactuation is recommended These units are not field repairable and switches in need of service should be returned
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