Walchem WebMaster Bedienungsanleitung PDF herunterladen

a. How do you know the pump is pumping? / What is a PosiFlow® Sensor?

1. The PosiFlow Feed Verification Sensor can help you identify whether the

pump is pretending to pump or actually pumping chemical into the application.

2. The PosiFlow detects the flow of liquid output by the pump with no moving

parts. The standard flow path of the pump is preserved so the liquid does not

go through gears or move a magnet to actuate a pulse in the sensor, eliminating

plugging or jamming concerns.

3. The PosiFlow sends out a signal with every stroke as long as there is liquid

flow against pressure. The PosiFlow output signal will stop if the pump loses

prime, is in a dead-head condition, or if the pump loses pressure due to a

broken discharge line. An input device can be configured to interpret the

signal in any way imaginable – totalization, no-flow alarms, drum re-fill

notification, etc.

b. What chemicals can I pump with the PosiFlow®?

1. The PosiFlow sensor is available in 4 materials matching those of the E-Series

pumps (follow the liquid end of the matching pump for best chemical

suitability):

a. FCP-1VC (PVC & FKM)

b. FCP-1VE (PVC & EDPM)

c. FCP-1PC (GFRPP & FKM)

d. FCP-1PE (GFRPP & EDPM)

c. How does the PosiFlow® work?

1. You install the PosiFlow in-line on the discharge side of the pump – typically

threaded right into the Manual Air Vent knob location. When the pump

strokes, a small pressure spike is sent into and through the discharge line. The

PosiFlow monitors the pressure changes and only if the pressure change is

adequate, will register it as a legitimate stroke of chemical. Every time this

happens, the PosiFlow sends a pulse (dry contact) through its wires. One shot

of chemical produces one pulse from the PosiFlow.

d. What can I do with this pulse from the PosiFlow®?

1. You can wire the PosiFlow directly into the control module of an EW-Y pump

and use one of the three built-in programs to monitor and detect when the

pump loses prime. The EW-Y constantly monitors the stroking of the solenoid

and compares it to the pulses from the PosiFlow. When the PosiFlow fails to

send contacts (number of missed contacts is configurable in the programming)

but the solenoid continues to stroke, one or both relays in the pump can be

programmed to close sending an alarm, starting a back-up pump, triggering a

empty drum, etc.

2. You can also interface the PosiFlow, in conjunction with a pump, to a

Walchem WebMaster controller. Similar to the programming built into the

W A L C H E M

IWAKI America Inc.

PosiFlow® FAQs, Installation & Wiring

1 2 3 4 5 6

Inhaltsverzeichnis

Seite 1 - W A L C H E M

a. How do you know the pump is pumping? / What is a PosiFlow® Sensor? 1. The PosiFlow Feed Verification Sensor can help you identify whether the

Seite 2 - PosiFlow

EW-Y, the WebMaster monitors the when the pump is on and compares it to the signals from the PosiFlow. Superior to the pump alone, in this

Seite 3 - PosiFlow Sensor

A drawing of wiring the PosiFlow to the EW-Y pump is below: Looking at the back of the connector, the pin lay

Seite 4

1. Press the STOP/START key until the pump starts running and then press it one more time so the pump is in the WAIT mode and sitting idle. 2.

Seite 5

Troubleshooting & Application requirements a. A minimum system pressure of 35 PSI is required for operation. This is usually not a probl

Seite 6

a. Double check the wiring in the connector or in the WebMaster or device to ensure power is applied to the sensor. b. Check that the pump i

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