Matheson’s HCE Series Tube-Cube® is the replacement flow tube for FM-1050 Series Flowmeters. The “cube,” a unitized tube holder, aligns the tube quickly and easily for simple tube installation or replacement. The Tube-Cube® provides protection during handling, reducing chipped tube ends, broken tubes and misalignment. The 1.5 X scale magnification lens allows for a more accurate reading. End seals in the FM-1050 are direct acting and nonrotating for fast alignment and convenient service access.  SEQHCE0864VA has a direct reading scale of 10-170 CFH-N2 @ 5 psi

All FM-1050 Series glass metering tubes have integral float guides to ensure a guaranteed ±5% of full scale accuracy. 

Note: Image shown does not show the proper scale printed on the tube

Design Features

• High resolution 150mm scale length
• Precision tapered, fluted metering tube

Materials of Construction

• Metering Tube: Borosilicate glass enclosed in Tube-Cube® holder
• Seal Materials: Viton
• Float Material: Tantalum
• Scale: 10-170 CFH-N2 @ 5 psi

Specifications

• Pressure Rating: 250 psi maximum
• Temperature Rating: 250°F maximum
• Accuracy: ±5% of full scale flow rate
• Repeatability: 0.25% of scale reading
• Range: 10 to 1, i.e., 100% to 10% of full scale mm or linear flow with conversion curves and/or factors

Rotameter Pressure Correction Factors

Rotameter Temperature Correction Factors

Instructions

Instructions, FM-1050