Walchem POSIFLOW Instruction Manual Download Page 1

 

 

 

 

W A L C

H E

Member of the Walchem Group

 

Five Boynton Road    Hopping Brook Park    Holliston, MA  01746  USA  TEL 508-429-1110    FAX 508-429-7433 

WEBSITE: www.walchem.com

    
    

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Sensor 

Instruction Manual

 

 Read this manual before using product. 

 
 
 
 

PRODUCT DESCRIPTION

 

 
The 

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 Sensor will verify that your 

metering pump is truly moving liquid into the 
system and has not lost prime.  Utilizing 
proprietary circuitry coupled with advanced 
pressure sensing technology, the 

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Sensor provides the most accurate and non-
intrusive flow verification device to date.  
Without any moving parts in the sensor, the 
standard flow path of the pump is preserved 
and the liquid does not move through any gears 
or lift a magnet to actuate a pulse in the sensor.  
This eliminates any concern of plugging, 
leaking or jamming of the flow path or sensing 
mechanism. 
 
The output signal of the 

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 Sensor is 

an open-collector contact closure 
corresponding with each flow pulse. 

 

Additionally, a visual green LED is mounted 
on the topside of the sensor.  This is always 
ON to indicate power and will briefly flash 
OFF in sync with each output signal.   
 
The 

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 will send out a signal with every stroke as long as there is liquid pumping against 

pressure.  If the pump becomes either air-locked or in a dead head condition, the sensor will no longer 
output a signal.  And unlike the competition, if the discharge line breaks or becomes disconnected, 
pressure will be lost and the 

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 sensor will stop signaling flow. 

 

Summary of Contents for POSIFLOW

Page 1: ... and the liquid does not move through any gears or lift a magnet to actuate a pulse in the sensor This eliminates any concern of plugging leaking or jamming of the flow path or sensing mechanism The output signal of the P P P POSI OSI OSI OSIFLOW Sensor is an open collector contact closure corresponding with each flow pulse Additionally a visual green LED is mounted on the topside of the sensor Th...

Page 2: ...NS 1 Identification Part Number Description Material FCP 1VC PosiFlow Sensor VC VC FCP 1VE PosiFlow Sensor VE VE FCP 1PC PosiFlow Sensor PC PC FCP 1PE PosiFlow Sensor PE PE 2 Applicable Models and Ordering Information The P P P POSI OSI OSI OSIFLOW Sensor is available for the 10 15 20 sizes of EH and EZ pumps with matching liquid end codes It will mount into either the manual air vent valve or the...

Page 3: ...turning it one half to one turn counter clockwise to bleed out air prime the pump or release the discharge pressure Electrical Wiring The PosiFlow Sensor requires 12VDC power to operate Attach the RED wire to 12VC and the BLACK wire to GND common The output signal is a closed contact between the WHITE and BLACK wires CAUTION Do not run the PosiFlow cable near other power lines carrying high curren...

Page 4: ...the PosiFlow may still keep sensing flow This is more likely in C15 20 sized pumps Output Signal The output signal from the PosiFlow simulates a contact closure It can be used in any device that takes a non powered contact closure as a switch It can also be used to drive another EH series pump The Walchem Web Web Web WebMaster is designed to accept the PosiFlow Sensor signal It both powers and rea...

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