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Alicat Portable Calibration Unit Provides Mobile Calibration Standard

Posted: Tuesday 5th July 2011

Secondary standard for gas flow applications ranging from 0.005 SCCM Ė 1500 SLPM.

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 & 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 & pressure simplifies comparisons to other flow devices. The unit has an integrated totalizer for tests that require long term averaging. Alicatís 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 Alicatís products carry the CE marking and are NIST traceable.

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