MICRO-FLO
14Pages

MICRO-FLO Digital Paddlewheel Flow meter Operating Manual Blue-White 5300 Business Drive Huntington Beach, CA 92649 USA Phone: 714-893-8529 FAX: 714-894-9492 E mail: sales@blue-white.com or techsupport@blue-white.com Website: www.blue-white.com

1.0 Introduction The Micro-Flo flowmeter is designed to display flow rate and flow total on a six digit LCD display. The meter can measure bi-directional flows in either vertical or horizontal mounting orientation. Six flow ranges and four optional pipe and tubing connections are available. Pre-programmed calibration K-factors can be selected for the corresponding flow range or a custom field calibration can be performed for higher accuracy at a specific flow rate. The meter is factory programmed for the correct K-factor of the body size included with the meter.

2.0 Features • Four connection options available: 1/8” F/NPT, 1/4” F/NPT, 1/4” ODx.l70ID Tubing & 3/8” OD x 1/4” ID Tubing sizes. • Six body size/flow range options available: 30to300 ml/min, 100 to 1000 ml/min, 200 to 2000 ml/min, 300 to 3000 ml/min, 500 to 5000 ml/min, 700 to 7000 ml/min. • 3 model display variations: FS = Sensor mounted display FP = Panel mounted display (includes 6’ cable) FV = No display. Sensor only. 5vdc current sinking output • 6 digit LCD, up to 4 decimal positions. • Displays both rate of flow and total accumulated flow. • Open collector alarm setpoint. • User...

4.0 Specifications Max. Working Pressure: PVC lens, PVDF lens, Max. Fluid Temperature: PVC lens, F/NPT connectors PVDF lens, tubing connectors Full scale accuracy Input Power requirement: Sensor only output cable: Pulse output signal: Output frequency range: Alarm output signal: Enclosure: Approximate shipping wt: 130 psig (9 bar) @ 70° F (21° C) 150 psig (10 bar) @ 70° F (21° C) 130°F(54° C)@0PSI 200° F (93° C)@0 PSI +/- 6% 9 - 28 VDC (31mA @ 15Vdc) 3-wire shielded cable, 6ft Digital square wave (2-wire) 25ft max. Voltage high = 5Vdc, Voltage low < .25Vdc 50% duty cycle 4 to 500Hz NPN Open...

Adapter .125” F/NPT PVC Adapter .375” OD Tubing Connection, PVDF Adapter .250” OD Tubing Connection, PVDF Adapter .500” ID Hose Barb, PVC PARTS LIST Description Qty. Lens Cap Opaque PVDF 1 O-Ring EP Body SI PVDF (30-300ml/min) 1 Adapter .500 F/NPT, PVC Adapter .500 M/NPT, PVC Sensor 1 Gasket, rear enclosure 1 Cover, enclosure rear Liquid Tight Connector Set 1 Gasket, sensor mount seal 1

5.1 Wiring Connections On sensor mounted units, the output signal wires must be installed through the back panel using a second liquid-tite connector (included). To install the connector, remove the circular knock-out. Trim the edge if required. Install the extra liquid-tite connector. On panel or wall mounted units, wiring may be installed through the enclosure bottom or through the back panel. See below. NOTE: To reset the circuit board: 1) Disconnect power 2) Apply powerwhile pressing the two front panel buttons. 5.3 Flow Verification Output Signal When connected to external equipment...

MICRO-FLO5.4 Panel or wall mounting 1.00 in [25 mm] Recommended panel or wall mounting cut-out forwire connection opening 6.0 Operation 6.1 Theory of operation The Micro-Flo flowmeter is designed to measure the flow rate and accumulate the total volume of a fluid. The unit contains a paddle wheel that has six (6) through holes to allow infrared light to pass through, a light-detecting circuit and a LCD-display electronic circuit. As fluid passes through the meter body, the paddle wheel spins. Each time the wheel rotates a DC square wave is output from the sensor. There are six (6) compete...

Control Panel Enter Button (right arrow) -• Press and release - Toggle between Rate, Total, and Calibrate screens in the run mode. Select program screens in the program mode. • Press and hold 2 seconds - Enter and exit program mode. (Automatic exit program mode after 30 seconds of no inputs). Clear/Cal (up arrow) -• Press and release - Clear total in the run mode. Scroll through and Select options in the program mode. NOTE: To reset the circuit board: 1) Disconnect power 2) Apply power while pressing the two front panel buttons. 6.3 Flow stream requirements • The Micro-flo flowmeter can...

While in the run mode, Press and hold ENTER then press and hold CLEAR to display the K-factor. Release ENTER and CLEAR to return to run mode. Body Size Useful formulas 60/K = rate scale factor rate scale factor xHz = flow rate in volume per minute 1/K = total scale factor total scale factorx n pulses = total volume 7.0 Programming The Micro-Flo flowmeter uses a K-factor to calculate the flow rate and total. The K-factor is defined as the number of pulses generated by the paddle per volume of fluid flow. Each of the six different body sizes have different operating flow ranges and different...

Press and Hold ENTER to initiate the programming mode. R SetP BODY SIZE/RANGE - Select your body size. Selected body size flashes, iy Press and release to select. SI > S2 > S3 > S4 > S5 > S6 > SO Note: Select SO forfield calibrating any body size range. RATE UNIT OF MEASURE - current unit of measure setting flashes ^ Press and release to select. ML > OZ > GAL > LIT RATE DECIMAL LOCATION - current decimal display setting flashes. >(^1^ Press and release to select. 0 > 0.0 > 0.00 > 0.000 > 0.0000 RATE TIME BASE - current time base unit of measure setting flashes. Press and release to select....

7.3 Field calibration size/range setting SO - Continuation of programming sequence when range “SO” is selected. The meter should be installed as intended in the application. The amount of fluid that flows through the meter during the calibration procedure must be measured at the end ofthe calibration procedure. Allow the meter to operate normally, in the intended application, for a period of time. A test time of at least one minute is recommended. Note - the maximum number of pulses possible is 52,000. Pulses will accumulate in the display. After the test time period, Stop the flow through...