Introduction
The Pressurements M3800
Series is the culmination of
over 50 years experience in the
design and manufacture of primary
pressure standards. With
features and options designed
to improve accuracy, increase
reliability, and simplify operation,
the M3800 Series can be
used to calibrate virtually any
high pressure sensing device
including transducers, transmitters,
gauges or pressure
switches.
Instrument base
The Instrument base includes
all items required for operation.
A high quality hand pump is
coupled to a 7 to 1 intensifier,
allowing the operator to
easily generate high pressure
in the system. An oil reservoir
is included so the pump to be
re-charged when calibrating
large volume devices. A Test
Station is provided for connecting
the Device under Test to
the M3800 Series. Adjustable
feet and the level vial allow
the operator to insure the
instrument is level to achieve
the ultimate performance. A
Piston Float Reference allows
the operator to determine when
the piston is in the ideal, “mid
float” position.
Piston/cylinder Assemblies
The piston/cylinder is the “
heart” of the deadweight
tester. M3800 Series pistons
are manufactured from tungsten
carbide which provides
excellent long term stability,
durability, and extremely low
coefficients for temperature and
pressure.
Mass sets
Standard weight masses are
series 3 non-magnetic stainless
steel. Each mass is marked
with the serial number of the
instrument and the nominal
pressure value. Select either
PSI, bar kgf/cm2 or MPa pressure
units. Presscal software
can be used to support additional
pressure units.
Gravity correction
Gravity varies significantly with
geographical locations. Each
instrument can be calibrated
to local gravity a no additional
cost. If unspecified, instruments
are calibrated to standard
gravity at 980.665 cm/s2.
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