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Level Calculation with Remote Seals

Diaphragm seals for tanks under Vacuum

The transmitter must be mounted level with or below the lowest tap to ensure positive pressure at the transmitter. Double Remote Seal Application Calibration Range

LRV or 4mA point = Phigh – Plow

LRV = (0.9*30”) – (0.9*100”)

LRV = -63”H2O

URV or 20mA Point = Phigh – Plow

URV = [(0.9*30”) + (1.1*50”)] – (0.9*100”)

URV = -8”H2O

Cal. Range = -63 to -8 in H2O

Density Calculation with Remote Seals Transmitter Max. Allowable ΔS.G = 0.2

Dist. Betw. Taps = 10 ft = 10 x 12” = 120”

Calibration Range

LRV or 4mA point = 120” * (SGp – SGf)

LRV = 120” * (1.1 – 0.95)

LRV = 18”H2O

URV or 20mA Point = 120” * (SGp – SGf)

URV = 120” * (1.3 – 0.95)

URV = 42”H2O

Cal. Range = 18 to 42 inH2O

Interface Calculation with Remote Seals Transmitter

Application Example: To determine % of interface of Liquid A with respect to Liquid B. Dist. Betw. Taps = 10 ft = 10 x 12” = 120”

Calibration Range

LRV or 4mA point = 120” * (SG1 – SGf)

LRV = 120” * (1.1 – 0.95)

LRV = 18”H2O

URV or 20mA Point = 120” * (SG2 – SGf)

URV = 120” * (1.3 – 0.95)

URV = 42”H2O

Cal. Range = 18 to 42 inH2O

Calculate Flow Transmitter Output Current May 6, 2016 at 1:38 am

Thanks for sharing the Remote Seals Level Calibration Procedure July 27, 2016 at 8:46 am

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