User Manual
Max Machinery, Inc. 240 Series User Manual © Copyright 2013 Rev. 002Q4 4
The Max 240 Series Flow Meters are positive
displacement helical rotor type units capable
of precise measurements over a wide range of
ow rates and uid viscosities.
The three sizes of this series (241, 242, and
243) will measure ows from 0.1 L/min to 1400
L/min. Material viscosities between 3 and
1,000,000 centipoise may be accommodated.
In a helical rotor type ow meter, a precise amount of the uid being measured is trapped between the rotors as they
turn. This motion is used to turn a gear coupled to a magnet. An external transmitter senses the motion of the magnet
and converts this signal into a voltage, pulse or 4-20 mA current ow rate output. For some transmitter models, the
magnet is eliminated and the motion of the gear itself is sensed.
The Max Series 240 Meters are of simple and rugged construction. They can be expected to perform superbly if treated
within the connes of the design envelope. For this reason, it is important to read this manual and understand the
operational requirements and limits of the meter.
Our Technical Service staff will be happy to answer any questions that this manual does not cover.
Meter General Description
inlet outlet
Helical Model 241
with transmitter attached
Helical Model 242 Helical Model 243