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To the owner
Thank you for purchasing a GPI GM
Series Flow Meter. Please take a few
minutes to read through this manual
before installing and operating your
meter. If you have any problems with
the meter, refer to the maintenance
and trouble shooting sections of this
manual.
This manual contains connection and
operating instructions for the GM007
Series meters with pulse outputs. For
models with displays an additonal
instruction manual is supplied. [If you
need further assistance, contact your
local GPI representative or contact
Important Information
PLEASE READ THIS INFORMATION
CAREFULLY BEFORE USE!
Before use, confirm the fluid to be used
is compatible with the meter (refer to
the GPI fluid compatibility chart), or
consult your local GPI distributor for
advice.
To prevent damage from dirt or foreign
matter, GPI recommends a Y or Basket
type 60 mesh strainer be installed as
close as possible to the inlet side of the
meter (if required contact GPI for
further information).
Note: When a strainer is installed it
should be regularly inspected and
cleaned. Failure to keep the strainer
GPI by telephone or fax.]
The GPI GM Series Flow Meter has
incorporated the oval rotor principal
into its design. This has proven to be a
reliable and highly accurate method
of measuring flow. Exceptional
repeatability and high accuracy over a
wide range of fluid
viscosities and flow rates are features
of the GM Series flow meter design.
The low pressure drop and high
pressure rating means the GM Series
flow
clean will dramatically effect flow
meter performance.
To prevent damage to the meter slowly
fill the system with fluid (this will
prevent damage caused by air purge).
Note: Failure to do this could damage
the meter.
For pump applications, turn off the
pump at the end of each day.
Maintenance can be carried out to the
liquid crystal displays and pulse units
without removing or isolating the meter
from the line. When maintenance to
any other part of the meter is required,
1
meter is suitable for both gravity and
pump (in line) applications.
The GPI GM Series flow meters are
available in aluminum, 316 stainless
steel, or PPS. Standard rotors are made
from PPS (Polyphenylene Sulfide
Resins) with optional 316 stainless
steel rotors available for either
stainless steel or aluminium models.
the meter must be isolated and the line
pressure reduced.
The reed switch pulse unit can cause
inaccurate rate counts when used with
high speed counters. It is advised that
a debounce circuit be used or
alternatively use the hall effect sensor
option.
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