DURA -METER DP-HFM2 Quick Assembly Instructions

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QUICK ASSEMBLY INSTRUCTIONS

Connect paddle wheel circuit wire to faceplate

Connect the (2) 9V batteries

Install 9V batteries into meter body

Secure face plate to meter body

and ensure you do not pinch any cables

Install the (4) 10-32 bolts and slightly snug

to tightness

HFM3_Assembly_Installation_120623

INSTALLATION GUIDELINES

This page details mounting and installation guidelines for the Dura-Meter

High Flow paddle wheel meter. These are location and installation guidelines.

This is not a troubleshooting guide for mechanical/electrical issues.

About 95% of the flow metering issues are

traceable back to the following 5 simple principles.

THE FLOW RATE MUST BE WITHIN THE RECOMMENDED RANGE

FOR THE PIPE SIZE THE METER IS INSTALLED ON.

All flow meters all have a minimum flow rate they will measure for each pipe size. No flow meter

reads down to 0. This lower limit is a result of the flow velocity not containing enough momentum

to keep the paddle wheel spinning. At some point the flow velocity drops and the paddle no longer

spins linearly with respect to the flow rate. This is the lowest flow rate the meter can accurately

measure. The meter may indicate flow rates below this value but will contain a large inaccuracy. At

some point the flow velocity becomes too low and the meter will indicate 0, even though there is

still flow.

The bottom line – if you don't have an adequate flow rate you need to either reduce the pipe

diameter or find a different flow meter. You won't get satisfactory results trying to monitor flows

below the recommended minimum value.

3" HIGH-FLOW DURA-METER

™

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Page 1 HFM3_Assembly_Installation_120623 3” HIGH-FLOW DURA-METER ™ INSTALLATION GUIDELINES This page details mounting and installation guidelines for the Dura-Meter ® High Flow paddle wheel meter. These are location and installation guidelines. This is not a troubleshooting guide for mechanical/electrical issues. About 95% of the flow metering issues are traceable back to the following 5 simple principles.
Page 2 THE PIPE MUST BE FULL OF FLUID AT ALL TIMES The pipe must be completely full of liquid! This is particularly an issue when the meter is installed on pipes that have a downward flow direction. Vertical pipes with a downward flow are the most prone to this issue.
Page 3 HIGH - FLOW DURA - METER ™ The meter will turn ON with any button press or when fluid passes through the meter. It will turn OFF when not in use. Use buttons to navigate the four main menus; Reset, Program, Calibration, Info. The buttons correspond to the on screen indicators.
Page 4 CALIBRATION NOTE: Use a primed system. Verify your calibration. Fluid viscocity changes with temperature. PREFERRED METHOD QUICK MANUAL CALIBRATION CALIBRATION / Most accurate / Great for fleet use / Usually only takes one attempt / Adjustable to compensatefor different measurement containers Select a viscocity reference number using water as the baseline.

Dura-meter dp-hfm3