Laboratory Products
Portable Calibration Unit Provides Mobile Calibration Standard
Oct 06 2011
Providing an efficient and affordable secondary calibration standard, the Portable Calibration Unit (PCU) from Alicat
Scientific integrates three Alicat Laminar Mass Flow Meters into a portable industrial briefcase that can be taken
anywhere. The PCU is ideal for use in laboratories, industrial plants, process facilities and by field technicians to verify
proper operation of flow meters and flow controllers from any manufacturer.
Unlike other currently available secondary standards, the PCU is fully self-contained and does not require any
additional support equipment or line power. It is as simple as having a tech arrive on site, plug the unit into the system
and take readings. The PCU also has on-board digital output to send flow data to a laptop or other computer
system via multi-drop RS-232 communications for simultaneous data acquisition.
Each of the integrated meters on the PCU displays mass flow, volumetric flow, pressure and temperature with high
accuracy calibration of +/- (0.4% of reading + .2% of full scale). The ranges of the flow meters are specified by the
end user upon ordering the PCU. Twenty pre-set selectable gas calibrations and ten pre-set gas mix calibrations (specific gas mixes and calibrations) are available.
Alternate and adjustable standard temperature and pressure simplifies comparisons to other flow devices. The
unit has an integrated totaliser for tests that require long term averaging. Alicat’s FlowVisionSC GUI software is
included, enabling graphing, data acquisition, and scripted polling.
The PCU can be plugged into wall power or powered by two standard 9V batteries. The unit will alert the user via a
bright led indicator to replace the batteries when power falls below a minimum threshold. Like Alicat’s standard line
of flow devices, the PCU has no large mechanical parts to service or fail. All of Alicat’s products carry the CE marking
and are NIST traceable.
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