Micro Motion RFT9709 Manuál s instrukcemi stáhnout pdf (Strana 104)

Using ProLink

Software with Micro Motion

Transmitters

Configure Menu: Characterize

continued

Pressure compensation with RFT9739

Enter the new density calibration factor into the K2 text box in the

Characterize Sensor dialog box for an RFT9739

For an IFT9701, IFT9703, RFT9712, RFT9729, update the density

calibration factor.

Example:

Given:

An RFT9739 is connected to a D300 sensor with 316L stainless

steel flow tubes. The flowmeter indicates a density of 0.9958 grams per

cubic centimeter (g/cc), which has been corrected to 0.9980 g/cc. The

first five digits of the density calibration factor are 09615, and the

second five digits are 13333.

Problem:

Adjust the second five digits of the density calibration factor

to compensate for pressure.

Solution

The new K2 value is:

13325

new

13333

()

9615

()

–

[]

0.9958

0.9980

------------------ 9615

()

⋅

85,320,664 0.9978 92,448,225+

⋅

13325.9590=

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Micro Motion RFT9709 Manuál s instrukcemi Strana 104