A-A-50625(SH)
3.5 Pressure drop. Maximum acceptable pressure drop, in kilogram per square meter, through the sensor shall be as specified.
4. Rotameters. The following shall be as specified.
(a) Port connection. ½ inch NPT (no metric equivalent) female or as specified.
(b) Type of mounting
(1) Piping
(2) Panel
5. Flow switch. The following shall be as specified.
(a) Type of output
(1) Solid-state – 75 mA, 24 Vdc
(2) Relay – 2 A, 115 Vac
(b) Electrical connection – 2 meter cable or as specified
(c) Excitation – 115 Vac, 60 Hz
(d) Range of adjustment
(e) Enclosure
(1) NEMA 4X for general use
(2) NEMA 7 for hazardous locations
(f) Port – ½ inch NPT (no metric equivalent) female or as specified
6. Flowmeter. The following shall be as specified.
(a) Accuracy – plus or minus 5 percent or as specified
(b) Connection port – ½ inch NPT (no metric equivalent) female or as specified
7. Vortes shedding. The following shall be as specified.
(a) Piping size
(b) Type of output
(1) 4 to 20 mA
(2) 1 to 5 Vdc
(c) Excitation – 115 Vac, 60 HZ
(d) Enclosure
(1) (1) NEMA 4X for general use
(2) NEMA 7 for hazardous locations
(e) Vibration compensation unless otherwise specified
(f) Cable Entrance – ¾ inch NPT (no metric equivalent) conduit hub or as specified
8. Vibration. Vibration requirement shall be as specified
9. Shock. Shock requirement shall be as specified
Quality Assurance Provisions
1. Contractor Certification. The contractor shall certify and maintain substantiating evidence that the product offered meets the salient characteristics of this Commercial Item Description, and that the product conforms to the producers own drawings, specifications, standards and quality assurance practices. The government reserves the right to require proof of such conformance prior to first delivery and thereafter as may be otherwise provided for under the provisions of the contract.
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