Baseline Systems BL-PFS200 User Manual

BL-PFS100, BL-PFS150, & BL-PFS200

Two-Wire Ready Flow Sensor Installation

Baseline’s BL-PFS100, BL-PFS150, and BL-PFS300 are PVC tee-type, impeller flow sensors that
provide accurate digital output signals proportional to the velocity of the liquid flowing
through the pipe.

Installation Overview

1. Choose the proper location and

orientation.

2. Install the sensor in the pipe.

3. Make the electrical connections.

4. Program the controller.

Operation Notes

 Make sure the flow sensor is assembled and the retaining nut is tightened (hand tight)

before pressurizing the system.

 Fill the pipeline and eliminate all trapped air.

 The flow sensor should begin transmitting flow immediately; however, it may take up to

a minute for the flow readings to display in the appropriate screens on the BaseStation
controllers.

 Always wait for flow to stabilize before setting control limits. Stabilization may take

several minutes in large piping systems.

1-866-294-5847 Rev 03262013 www.baselinesystems.com

BL-PFS100, BL-PFS150, & BL-PFS200

Two-Wire Ready Flow Sensor Installation

Choosing the Proper Location and Orientation

Because an impeller sensor measures the velocity of the liquid and converts it to a flow
measurement based on area, proper flow measurement depends on the condition of the pipe

interior and the sensor’s location in the piping system. The pipeline must be full, free from trapped

air, floating debris and built-up sediment.

 The mounting tee should be installed with a minimum of 10 diameters of straight pipe (15

inches for 1½ inch pipe), upstream and a minimum of 5 diameters of straight pipe (7½ inches
for 1½ inch pipe) downstream to eliminate irregular flow profiles caused by valves, fittings or
pipe bends.

 Always install with the flow arrow on the mounting tee pointed downstream.

 Allow 3¾” clearance to remove the flow sensor housing from the tee for service. The tee is

usually installed with the housing up in the vertical or 12 o’clock position. However, if

necessary, it may be installed with sensor housing at an angle from vertical to provide
clearance.

 Flow sensors may be installed inside a building, outside above grade or underground. If

installed above grade, provide adequate security to prevent damage or disassembly. If
installed below grade, provide access for service.

 Flow sensors are most typically installed below grade in a horizontal section of pipe with the

sensor housing up. Do not direct bury the flow sensor. Provide a meter pit or valve box of
adequate size and drainage to service the sensor. Provide a service loop in the wire
connections to allow the sensor housing to be brought above grade.

 Flow sensors may be installed on vertical sections of pipe providing that the piping is full and

does not contain trapped air. A vertical pipe with rising flow is preferred over falling flow. The
sensor housing may be oriented in any direction radially around the pipe.

1-866-294-5847 Rev 03262013 www.baselinesystems.com