1 - PD High Power Calorimeter 25E-116A-RF.pdf

25E-116A-RF

5 Nov 2024 Rev 6

PURCHASE DESCRIPTION

FOR

High Power RF Calorimeter

1.0 SCOPE: Precision high power RF calorimeter that can provide highly accurate RF power measurements up to 250 W, DC to 3 GHz in frequency range, and is traceable to the International System of Units (SI) through the National Institute of Standards and Technology (NIST) or other recognized National Metrology Institutes. The end deliverable product shall be a complete turnkey system that will be used by the AFPSL for the calibration of the system’s internal calorimeter and the Feedthru RF directional coupler (Bird 4021A300 /4022A200). The internal calorimeter calibration process/technique shall include all hardware, software, and support equipment necessary to calibrate the calorimeter to a worst-case accuracy of 0.5%. Additionally, the calibration process/technique from the calorimeter to the AF working standard shall include all hardware, software, and support equipment necessary to calibrate the working standards to 1% accuracies, with the option of calibrating them to this accuracy at the input port. The RF High Power Calorimeter System shall operate over the following parameters of 50 Hz to 3 GHz and 10 to 250 Watts to 0.5 % to 1 GHz and 0.6% to 3 GHz.

2.0 PERFORMANCE REQUIREMENTS:

2.1. Resolution: +/- 0.01 Watts

2.2. Range: 50 Hz to 3 GHz, 10 to 250 Watts

2.3. Measurement/TI Uncertainty: worst case accuracy of (k=2, 95%):

2.3.1. 50 Hz to 1 GHz; +/-(0.25 W +/- 0.25% rdg) at 80-100W

2.3.2. >1 to 3 GHz; GHz, +/-(0.3 W +/-0.3% rdg) at points outside of 80-100W and at frequencies above 1GHz.

2.4. Units: Watts

2.5. Warm-Up Time: Permit the unit to operate approximately 20 minutes prior to application of

RF power (this is required to purge cooling system of air if the Calorimeter and chiller have been moved or refilled). Calorimeter and chiller require operation for 2 hours before first calibration run. Manual dwell times at desired calibration power levels should be > 6 minutes (the temp control loop needs this minimum time to react and settle). As a Min allow the coolant to circulate at least 3 minutes after RF power is removed. Move the main power switch to the OFF position.

2.6. Water Chiller: a water chiller with sufficient specifications for the calorimeter shall be provided as part of the system.

3.0 FUNCTIONAL REQUIREMENTS:

3.1 Automate and Manual Control: Manual Operation of the Calorimeter is by means of front panel controls. These controls shall allow normal reading of power, selection of frequency for reflection correction, and a number of configuration and diagnostic functions. Under automation the Calorimeter is controlled by means of system controller and Mfg Software.

3.2 User Interface: Allows control over LAN or GPIB addressing.

3.3 Ancillary Equipment: Any and all ancillary equipment/items and accessories (not listed in 6.0) needed to perform as described shall be provided by the contractor. This would include, but not limited to, special tools, cables, fixtures, programs and standards.

3.4 Calibration Requirements: ISO/IEC 17025 Accredited Calibration by a Primary Lab. Calibration documentation shall be provided, which includes a Certificate traceable to International Standards with Data.

3.5 International Standards & Publications: Performance Specifications to be provided to the 95% (k=2) normally distributed level of confidence.

3.6 The High-Power RF Calorimeter shall be capable of burning calibration factors to the Feedthru RF directional coupler (Bird 4021A300 /4022A200).

3.7 The High-Power RF Calorimeter shall be capable of calibrating either the Feedthru RF directional coupler (Bird 4021A300 /4022A200) input port or output port.

4.0 MECHANICAL & PHYSICAL REQUIREMENTS:

4.1 Display: Digital

4.2 Dimensions and Weight: Less than 3’ feet wide, 6’ high, and less than 1000 lbs.

4.3 Components: Commercial parts and materials that are used shall have properties consistent with a laboratory instrument.

4.4 Individual Unique Identifier Designation: This item shall be clearly labeled with a model number, serial number, and manufacturer’s name. Unique item identification labeling shall follow Item Identification and Valuation requirements as stated in the contract.

4.5 Operating Environment: Shall perform to all specifications within the following environment:

4.5.1 Temperature Range: 23 ºC ± 3 ºC (± 5 ºF)

4.5.2 Operating Humidity: less than or equal to 50% RH, non-condensing

4.6 Facility Requirements:

4.6.1 Electrical Power and Connections: 120 or/and 220 VAC 60 Hz

4.7 Safety: The design, materials and manufacture of the Calorimeter shall follow the best commercial safety standards and practices to ensure that it is safe for the operator and maintenance personnel throughout the life of the equipment.

5.0 SOFTWARE/FIRMWARE REQUIREMENTS:

5.1 Calorimeter shall work with existing AFMETCAL software. Software is HPC-CAL.

6.0 WARRANTY & TECHNICAL SUPPORT:

6.1 A warranty & technical support normally offered by the vendor for this product shall be provided with the unit.

7.0 GOVERNMENT FURNISHED EQUIPMENT: AFMETCAL shall provide the following equipment to be utilized as part of the overall calorimeter system:

7.1 Comtech PST Amplifier (High Power Low Frequency) P/N BHED1617-1000/6409, 1 to 10 MHz, 10 to 1000 Watts (includes a filter bank)

7.2 Comtech PST Amplifier (High Power High Frequency) P/N BHED1719-1000/4006, 10 MHz to 1 GHz, 10 to 1000 Watts (includes a filter bank)

7.3 Hewlett Packard Signal Generator, 8663A

7.4 11713 Switch Driver

7.5 Bird 4421 RF Power Meter

7.6 Tegam 1830A RF Power Meter

7.7 Radian Reference Standard, P/N RD-23

7.8 Keysight AC Power Source Analyzer, P/N 6811B

7.9 Laptop with Windows 10 Long Term Servicing Channel (LTSC)

8.0 OPERATOR’S MANUAL: Documentation shall be developed suitable for use as reference material by AFPSL technicians. Documentation shall be separated into general manuals on system operation, theory of operation, troubleshooting, etc., and into specific procedures for calibrating power sensors. Contractor format is acceptable.

9.0 INSTALLATION: Thirty (30) days’ notice is required for installation at AFMETCAL. Upon completion of installation contractor shall demonstrate and fully test the delivered unit. AFMETCAL shall perform acceptance testing after installation. Additional documentation to be delivered with the final working system shall include a Troubleshooting Guide, mechanical and electrical schematic diagrams for items designed under this project, a parts list.

10.0 TRAINING: On Site training shall include any needed background in theory, calculations, etc., and shall include formal objectives.

10.1 Procedures for calibrating Bird 4021 and 4022, in contractor format in modifiable source in electronic format and in automatic procedures with source code.

10.2 Training materials in modifiable electronic format.

10.3 Post-training test materials, with answers and scoring guide, in modifiable electronic format.

10.4 Training classes as planned and scheduled for one to 10 personnel.

11.0 ENVIRONMENT, SAFETY, AND OPERATIONAL HEALTH: A combination of the system manual, other documentation, and/or the system itself shall identify potential environment, safety and operational health hazards and how they are mitigated when the design itself cannot mitigate them. This will be accomplished through stating the hazard and accompanying mitigation through the use of safety devices, use of warnings, or use of special operational procedures to counter such hazards.

12.0 TESTING: The item will be inspected and accepted at a destination specified elsewhere in this contract. The item will be checked with test equipment and parameters equal to or better than those required assuring specified performance requirements are met. Test equipment has first echelon certification directly traceable to the National Institute of Standards and Technology (NIST) or other AFMETCAL approved sources where required. Tests will be performed to assure the item meets or exceeds all the requirements of this purchase description. Such testing does not relieve the contractor of performing all inspections and quality control checks at the point of fabrication as necessary to assure performance as specified.

Attachment:

Data Requirements

Attachment to Purchase Description

High Power Calorimeter

DATA REQUIREMENTS

MANUALS: A complete user and service manual and calibration procedure shall be provided with each unit in contractor format. Manuals shall be on CD/DVD-ROM in Indexed Portable Document Format

(iPDF). The manuals shall comply with Data Item Description (DID) DI-TMSS-80527C and the Contract

Data Requirements List (DD Form 1423).

CALIBRATION CERTIFICATE: A calibration certificate, traceable to the National Institute of Standards and Technology (NIST) or other national metrology institutes (NMIs) shall be provided with each instrument. This calibration certificate must comply with Data Item Description (DID) DI-QCIC-80798C and the Contract Data Requirements List (DD Form 1423).