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P-Series User Manual Rev2022 2

Your Max Flow Meter has been congured at the factory to be used out of the box based on your submitted application

data. Plumb it, wire it, and use it. The following section will provide instructions on how to properly plumb your Max Flow

Meter in the liquid lines of your application.

Use the “IN” port or follow the ow direction arrow markings for the primary ow direction. Install the meter on the

discharge side of the pump whenever possible. Excessive vibration at the meter should be avoided.

Orientation: Preferred mounting orientation of the meter depends on meter type. The orientation optimizes air purging

and/or minimizes heat transfer to the electronics. P-Series meters with in line ports prefereably mount with the

transmitter facing down or alternately on the side. P001 and P002 with offset ports mount with the transmitter facing

up. These mounting orientations prevent air in the system that can cause response delays and errors in measurement.

NPT ttings: Always use pipe sealant or pipe tape to install ttings, and leave the rst thread of pipe exposed. Ensure

the tape or sealant does not accidentally enter the meter.

SAE / BSPP ttings: Always use process uid compatible lubricant on the o-ring to attach the tting to the meter.

Compression Fittings: P001 compression ttings are based on Swagelok style ferrules (see g. 1). Do not use other

manufacturer’s parts because the sealing angle may not be the same. Fitting kits contain detailed instructions and

are shipped with every meter (contact Max Machinery for spare ferrule kits). Always torque to values on tting kit

instructions. Select tubing grades that meet or exceed your system pressure requirements. If using exible tubing,

install a tubing insert to allow compression ferrules to seal (suggested inserts: Swagelok SS-405-2, SS-405-03 or SS-

405-170). To reuse a tube tting, mark the nut and meter before removal. When re-installing, tighten to align the marks

then tighten a quarter turn farther.

Installation - Mechanical

P001

FLOW

P213

Ferrule

Meter body

Lock ring

Nut Fluid line

Figure 2. Compression Fitting

FLOW

P213

Max P Series User Manual

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