SATPC0026538 Tab 04 5 Spec_Redacted.pdf
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Instrument Specification for
Pressure Transmitters 140HF-GE02 Revision 0
B2 Test Stand National Aeronautics and Space Administration
John C. Stennis Space Center Stennis Space Center, MS 39529-6000
Instrument Specification for Pressure Transmitters
Instrument Specification for Pressure Transmitters Specification: 140HF-GE02
Revision 0
January 25, 2022
Table of Contents
1.0 General
1.1 Scope of Work
1.2 Other Specifications
1.3 Work Not Included
2.0 Requirements
2.1 Installation Requirements
2.2 Service Requirements
2.3 Mechanical Requirements
2.4 Electrical Requirements
2.5 Environmental Requirements
2.6 Fabrication
2.7 Inspection and Testing
2.8 Identification
3.0 Packaging
4.0 Submittals
5.0 Warranty
6.0 Data Sheets
1.0 General
1.1 Scope of Work
This specification has been written for pressure transmitters utilizing digital pressure sensors rated 0-10,000 psig/psid/psia.
The supplier shall design, fabricate, test, tag, package, and ship the ordered instrumentation in accordance with the requirements of this equipment specification and all documents specified herein.
The work includes the furnishing of all labor, technical, and professional services, materials, and performance of all incidentals in connection with the engineering, design, fabrication, testing, and delivery of process instrumentation for pressure transmitting.
Materials and equipment to be provided shall be the standard catalog products of manufacturers regularly engaged in the manufacture of the products, unless otherwise specified and documented by buyer purchase requirements and manufacturer drawings and specifications.
The manufacturer warrants the satisfactory and successful operation of all equipment furnished under this specification at the rating, conditions, and the type of service specified herein.
1.2 Other Specifications
The equipment supplied under this specification shall meet the applicable portions of the following:
NEC- Handbook, 5-501 Class I Locations
MIL-I-45208A Inspection System Requirements
MIL-HBDBK-217 Reliability Prediction of Electronic Equipment
MIL-STD-810, 513.1 Acceleration
MIL-STD-810, 514.1 Mechanical Shock
MIL-STD-810, 516.1 Identification Marking of U.S. Mil. Property
Where conflicts arise between this Equipment Specification and the other specifications, standards, and codes, these shall be referred to the Buyer for clarification before quotation. When a document revision is not specified, it shall be that in effect at the time of the proposal.
Modifications to NASA SSC documents, specified herein, take precedence over the base document.
1.3 Work Not Included
Field installation Field test Final cleaning Calibration other than specified in data sheets
2.0 Requirements
2.1 Installation Requirements
The equipment specified herein will be installed outdoors and shall operate satisfactorily under the following conditions:
Altitude of Site: Sea Level Barometric Pressure: 14.7 psia Ambient Temperature: -40°F to 185°F Humidity 0% to 100% (relative) Outdoor Conditions: Class I, Division 1, Group B, Classified Area Location: Stennis Space Center, Mississippi
2.2 Service Requirements
2.2.1 Scope: Each pressure transmitter shall be suitable for use with gaseous and liquid oxygen, hydrogen, nitrogen, and helium, as well as air and water.
2.2.2 Oxygen Compatibility: All materials exposed to oxygen under any operating conditions, including failure modes, shall be compatible with it, and shall not react spontaneously.
2.2.3 Hydrogen Compatibility: Transmitters must be compatible with hydrogen in both materials and construction. All materials exposed to hydrogen under any operating condition, shall be compatible with it and shall not exhibit hydrogen embrittlement degradation.
2.2.4 Interchangeability: All units shall be designed to permit interchangeability of units with the same part number.
2.2.5 Serviceability: The transmitter shall be designed to permit cleaning and full visual inspection of all surfaces exposed to the pressure medium. Any disassembly and reassembly necessary to perform this function shall not affect transmitter performance.
2.3 Mechanical Requirements
2.3.1 Design: Each pressure transmitter and its accessories shall be in accordance with the data sheets and the requirements specified herein. The pressure transmitter shall be capable of operating within the performance requirements specified throughout the full operating range.
Vendors shall also provide all necessary engineering calculations.
2.3.2 Materials: Materials of construction shall be new and free of defects and imperfections.
They shall retain satisfactory mechanical properties throughout the specified working temperature and pressure range. All pressure containing components shall conform to the requirements of ASME Code, Section VIII and ANSI B31.3. The equipment shall be manufactured from the materials specified on the data sheets. All alternate recommendations must be submitted in writing to Buyer as part of the vendor’s proposal. Alternate materials are prohibited unless approved by the Buyer.
2.3.3 Connections: All pressure transmitters, unless otherwise noted, shall be installed in 1/4” tubing and their pressure connection shall be ¼” NPT internal thread.
2.3.4 Mean Time Between Failure: All units shall exhibit mean time between failures (MTBF) of 100,000 hours or greater in accordance with MIL-HDBK-217, assuming 77 O F ambient temperature.
2.3.5 Over Pressure Protection: All transmitters shall be able to withstand over pressure events up to 1.5 times the Upper Range Limit at 1 cycles without damage to the sensor and without the need to re-calibrate.
2.3.6 Sensor Diaphragm: All transmitters shall be constructed with 2 mil thick Hastelloy C-276 diaphragms.
2.3.7 Repair: If any special tools are required for assembly and/or disassembly, they shall be included with the transmitters.
2.4 Electrical Requirements
2.4.1 Pressure transmitters shall operate within the requirements specified in this specification and on the data sheet herein.
2.4.2 Factory calibration shall be NIST traceable. Calibration sheets shall be included with each transmitter.
Four tests shall be conducted on each transmitter: 1) the transmitter shall be calibrated at ambient temperature at the following increments of the pressure rating: 0%, 20%, 40%, 60%, 80%, 90%, and 100%, for ascending and descending pressures pressure cycles. Data shall be provided for each step of each of three cycles. 2) then the transmitter shall be calibrated at the minimum temperature for 0%, 100%, and back to 0% full scale output, 3) at maximum temperature for 0%, 100%, and 0%, 4) finally, at ambient temperature for 0%, 100%, and back to 0% full scale output.
2.4.3 Non-Linearity and Hysteresis: The combined effects of zero-based non-linearity, repeatability, and hysteresis, over the full pressure range of the transmitter, shall produce no deviation greater than 0.065% of span.
2.4.4 Ambient Temperature Effects: Total effects per 50 0 F change shall not exceed 0.084% of span + 0.03% of the Upper Range Limit.
2.4.5 Stability: The output signal shall not drift more than 0.1% of the Upper Range Limit per 60 months.
2.4.6 Power Supply Effects: The output signal shall not vary by more than 0.005% per Volt over an input voltage span of 21.6 VDC to 32VDC.
2.4.7 Signal Output: All transmitters shall be 4-20mA "Loop Powered" devices that are "HART" protocol capable.
2.4.8 Failure Alarm: All transmitters must be configurable to fail "High" or "Low" upon detection of a CPU or hardware failure.
2.4.9 Response Time: Response time is defined as the time required for the 4-20mA output signal to reach 90% of the process pressure. Response time requirements a given on the individual "Data Sheets."
2.5 Environmental Requirements
2.5.1 Temperature: The transmitter shall withstand continuous exposure to any temperature in the ranges listed on the spec. sheets without damage or subsequent change in performance.
2.5.2 Shock: The transmitter shall withstand six 30g peak, half sine shocks of 11 ± 1 milliseconds duration along each of its principal axes without damage or subsequent change in performance.
2.5.3 Vibration: The transmitter shall withstand sinusoidal vibrations of 1/4 inch double amplitude from 5 to 25 Hertz and 25 g RMS from 25 to 2000 Hertz without damage or subsequent change in performance. The transmitter output shall be less than .05% FS/gRMS along any axis at frequencies up to 1000 Hertz.
2.5.4 Humidity: The transmitter shall perform within the stated requirements of this specification in a relative humidity of 100% at temperatures up to 170°F. Performance shall not be affected by condensation due to temperature changes. If necessary, the transmitter shall be coated/protected to prevent degradation due to humidity.
2.6 Fabrication
The transmitter shall incorporate a standard capsule assembly constructed of materials meeting NACE MR01-75 including: 316L stainless steel capsule body; Hastelloy C-276 process isolation diaphragms; 316 stainless steel pressure flanges, process connectors and drain/vent valves;
stainless steel bolts (studs) and hardware; Teflon (TFE) coated stainless steel process gaskets.
2.7 Inspection and Testing
2.7.1 Each pressure transmitter delivered to Stennis Space Center shall be subjected to nondestructive examination in accordance with ASME B31.1 and codes governing design, manufacture, and application of pressure containing parts.
2.7.2 The supplier shall perform all tests required by the referenced codes, standards, and regulations, as well as any tests mentioned in the data sheets or this specification.
2.7.3 Pressure Testing: Pressure retaining components shall withstand the proof pressure stated in the data sheets without change in performance characteristics or bursting. Unless otherwise specified, each transmitter shall be capable of withstanding a minimum of 3 times full range pressure without rupturing the diaphragm or housing.
2.7.4 LOX Compatibility and Cleaning: Each pressure transmitter shall be capable of being cleaned to be used in Liquid Oxygen applications.
2.7.5 Rejection and Retest: Failure of a transmitter to pass the manufacturer’s qualification test or a Stennis verification test will be cause for rejection of the transmitter. The rejected transmitter may be reworked by the manufacturer and then, after complete retesting, may be submitted for acceptance.
2.8 Identification
Each pressure transmitter shall be permanently marked with the following information:
Manufacturer Model Number Serial Number Pressure Rating Maximum Working Pressure (MWP)
3.0 Packaging
The pressure transmitter shall be packaged in accordance with good commercial practice.
Packaging shall be adequate to protect the hardware during handling, shipping, and storage.
4.0 Submittals
4.0.1 The Vendor shall supply the following information:
a. Physical configuration and dimensioned cross-sectional drawings.
b. Description of the principal of operation.
c. Electrical schematic.
d. Application notes if special techniques or equipment are involved in the calibration or use of the transmitter.
e. List of required deviations - see NOTE below.
f. Materials of construction.
g. Proper installation mounting diagrams
NOTE: If the supplier has an existing transmitter which substantially but not entirely meets all of the requirements of this specification, the supplier is encouraged to submit a proposal on such a transmitter. The proposal should reference by paragraph number of this specification those requirements which cannot be entirely met. The proposal should state to what extent the transmitter can meet the requirements in question and should state the reasons for not meeting other requirements. The Buyer will evaluate all such proposals and determine whether the transmitter can be granted deviations to the specification.
4.0.2 The Buyer will review Vendor’s submittal for principle and important dimensions and for conformance with design requirements. The Buyer’s approval of Vendor’s drawings, calculations, procedures, or other submittals does not relieve the Vendor of responsibility to ensure that the equipment meets the requirements of this specification and applicable code requirements, nor does it relieve the Vendor of responsibility for accuracy of dimensions, performance, or design details.
4.0.3 All submitted information/material shall be mailed to:
4.0.4 The Vendor shall present a schedule of events showing, as a minimum, the critical path, key milestones, and required action dates for submittal.
4.0.5 The Vendor shall submit a Certificate of Conformance stating that the furnished equipment meets the requirements of this specification.
5.0 Warranty
All equipment to be furnished under this section of the specifications shall be guaranteed against defective materials, design, and workmanship for a period of one year from the DATE OF Manufacture, but not before the equipment involved has passed all specified tests. Upon receipt of notice from the Buyer of failure of any part of the guaranteed equipment during the guaranty period, new replacement parts shall be furnished by the Vendor at no additional cost to the Buyer.
The Vendor shall acknowledge his responsibility under these guaranty provisions by letter, stating that the equipment and materials referred to herein are guaranteed and the inclusive dates for the guaranty period.
The supplier shall warrant the satisfactory and successful operation of all equipment furnished under this specification at the conditions and type of service specified herein.
SSC B-2 FACILITY
Specification: 140HF-GE02
Revision 0
PRESSURE TRANSMITTERS DATA SHEET January 25, 2022
6.0 Data Sheets
GENERAL
PRESSURE RANGE 0-200 PSIG
TYPE Digital Pressure Sensor
MOUNTING Vertical Pipe
ELEMENT AND BODY MATERIAL 316L stainless steel
DIAPHRAGM MATERIAL Hastelloy C-276
PROOF PRESSURE Minimum of 3,000 PSIG
MECHANICAL SHOCK 30 G’s for 11 ms
MAXIMUM DELIVERY TIME 6 weeks
PHYSICAL
ENCLOSURE TYPE Must meet or exceed NEC 501 requirements
MECHANICAL CONNECTION ½” NPT external thread
ELECTRICAL CONNECTION ¼” NPT internal thread
PERFORMANCE
OPERATING TEMP RANGE Given in Specification
COMPENSATED TEMP RANGE Given in Specification
OUTPUT SIGNAL (FULL SCALE) 4 to 20mA with HART 5/7 Protocol (GS 01C31T01-
01EN)
LINEARITY Given in Specification
REPEATABILITY Given in Specification
HYSTERESIS Given in Specification
OUTPUT RESISTANCE 0 to 1335 ohms for operation
RESOLUTION 40,000 counts
THERMAL SENSITIVITY SHIFT Given in Specification
THERMAL ZERO SHIFT Given in Specification
INSULATION RESISTANCE Greater than 10 K megohms at 50Vdc at 70°F.
CALIBRATION Given in specification
TOTAL NUMBER NEEDED 9
Revision 0
PRESSURE RANGE 0-1,000 PSIG
TYPE Digital Pressure Sensor
MOUNTING Vertical Pipe
ELEMENT AND BODY MATERIAL 316L stainless steel
DIAPHRAGM MATERIAL Hastelloy C-276
PROOF PRESSURE Minimum of 3 X pressure range
MECHANICAL SHOCK 30 G’s for 11 ms
MAXIMUM DELIVERY TIME 6 weeks
PHYSICAL
ENCLOSURE TYPE Must meet or exceed NEC 501 requirements
MECHANICAL CONNECTION ½” NPT external thread
ELECTRICAL CONNECTION ¼” NPT internal thread
PERFORMANCE
OPERATING TEMP RANGE Given in Specification
COMPENSATED TEMP RANGE Given in Specification
OUTPUT SIGNAL (FULL SCALE) 4 to 20mA with HART 5/7 Protocol (GS 01C31T01-
01EN)
LINEARITY Given in Specification
REPEATABILITY Given in Specification
HYSTERESIS Given in Specification
OUTPUT RESISTANCE 0 to 1335 ohms for operation
RESOLUTION 40,000 counts
THERMAL SENSITIVITY SHIFT Given in Specification
THERMAL ZERO SHIFT Given in Specification
TOTAL NUMBER NEEDED 2
Revision 0
PRESSURE RANGE 0-4,000 PSIG
TYPE Digital Pressure Sensor
MOUNTING Vertical Pipe
ELEMENT AND BODY MATERIAL 316L stainless steel
DIAPHRAGM MATERIAL Hastelloy C-276
PROOF PRESSURE Minimum of 3 X pressure range
MECHANICAL CONNECTION ½” NPT external thread
ELECTRICAL CONNECTION ¼” NPT internal thread
PERFORMANCE
OPERATING TEMP RANGE Given in Specification
COMPENSATED TEMP RANGE Given in Specification
OUTPUT SIGNAL (FULL SCALE) 4 to 20mA with HART 5/7 Protocol (GS 01C31T01-
01EN)
LINEARITY Given in Specification
REPEATABILITY Given in Specification
HYSTERESIS Given in Specification
OUTPUT RESISTANCE 0 to 1335 ohms for operation
RESOLUTION 40,000 counts
THERMAL SENSITIVITY SHIFT Given in Specification
THERMAL ZERO SHIFT Given in Specification
Revision 0
PRESSURE RANGE 0.4-20 inH2O
TYPE Digital Pressure Sensor
MOUNTING Vertical Pipe
ELEMENT AND BODY MATERIAL 316L stainless steel
DIAPHRAGM MATERIAL Hastelloy C-276
PROOF PRESSURE Minimum of 3 X pressure range
MECHANICAL CONNECTION ½” NPT external thread
ELECTRICAL CONNECTION ¼” NPT internal thread
PERFORMANCE
OPERATING TEMP RANGE Given in Specification
COMPENSATED TEMP RANGE Given in Specification
OUTPUT SIGNAL (FULL SCALE) 4 to 20mA with HART 5/7 Protocol (GS 01C31T01-
01EN)
LINEARITY Given in Specification
REPEATABILITY Given in Specification
HYSTERESIS Given in Specification
OUTPUT RESISTANCE 0 to 1335 ohms for operation
RESOLUTION 40,000 counts
THERMAL SENSITIVITY SHIFT Given in Specification
THERMAL ZERO SHIFT Given in Specification
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