Square Root / Radial Planimeters (Chart Readers, Chart Integrators)

Utilized primarily by Oil, Gas and Utility Companies, Square Root and Radial Planimeters are used for evaluation of  flowmeter and temperature charts. .

SQUARE ROOT PLANIMETERS Square Root Planimeters measure the mean heights of curves recorded in proportion to the exponent of a desired quantity, primarily on charts with quadratic or other non linear divisions. They are most frequently used by Oil, Gas and Utility Companies for evaluation of flowmeter charts to average square root recordings of static and differential pressure.   RADIAL PLANIMETERS Radial Planimeters are used to average temperature chart recordings for use in the flow equation. Other applications include determination of mean output of KW, averaging hydrological chart recordings, etc. This type of data is normally recorded on a linear chart, which has uniformly spaced divisions. (ordinates)

Square Root and Radial Planimeters are available for evaluation of either circular or strip charts , and with electronic or mechanical measuring mechanism.

MECHANICAL MODELS 1000V,1050V, 2000V, 3000V, 6000V and 8000V are equipped with a rugged dial-drum-vernier measuring mechanism . The cost of this instrument type is lower than that of electronic systems. Mechanical instruments are especially suitable for field use and for low volume chart evaluation.

ELECTRONIC MODELS 1002, 1052, 2002, 3002, 6002 and 8002 provide fast and convenient operation with digital readout, instant zero setting, automatic scaling and the potential for interfacing with a computer for automatic computation of flow. All electronic models must be used in conjunction with a Lasico Processor. (The processor must be ordered separately, i.e. it is not automatically included with the instrument.)

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