Purchase_Description.pdf

19E-169A-DC

27NOV2018

Revision 1

PURCHASE DESCRIPTION

FOR

CAPACITANCE BRIDGE UPGRADE

1.0 SCOPE: This purchase description describes a Capacitance Bridge Upgrade with the following capabilities:

1.1 Capacitance range of 50 Hz to 20 kHz

1.2 Fully automatable measurements with the capability to make manual measurements

1.3 AC voltage test signal range of 0.03 to 15 V AC from 50 Hz to 20 kHz

1.4 All upgraded components shall interface internally with existing Andeen-Hagerling

AH2700A Capacitance Bridges and shall not degrade current functionality.

1.5 All specifications shall not be less than or degrade the current Capacitance Bridge

Andeen-Hagerling AH2700A.

1.6 Full performance specifications shall be achieved while operating in conjunction with the

Andeen-Hagerling 1100/11A Capacitance Standards.

2.0 PERFORMANCE REQUIREMENTS:

2.1 Frequency: 50, 60, 70, 80, 100, 120, 140, 160, 200, 240, 300, 400, 500, 600, 700, 800 Hz and 1.0, 1.2, 1.4, 1.6, 2.0, 2.4, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 10, 12, 14, 16, and 20 kHz +/-

0.0025%

2.2 AC Test Signal Voltages: 0.03 to 15 VAC. Details are as follows:

2.3 Resolution in ppm shall be determined, at a minimum, with the following formulas:

2.3.1 Parallel Capacitance:

2.3.2 Series Capacitance:

2.3.3 Dissipation Factor:

Attachment 1

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2.4 Accuracy in ppm shall be determined, at a minimum, with the following formulas(AT is found in Table 1):

2.4.1 Parallel Capacitance:

2.4.2 Series Capacitance:

2.4.3 Dissipation Factor:

2.5 Stability in ppm per year shall be determined, at a minimum, with the following formulas:

2.5.1 Parallel Capacitance:

2.5.2 Series Capacitance:

2.5.3 Dissipation Factor:

2.6 Temperature coefficient in ppm per degree C shall be determined, at a minimum, with the following formulas:

2.6.1 Parallel Capacitance:

2.6.2 Series Capacitance:

2.6.3 Dissipation Factor:

3.0 FUNCTIONAL REQUIREMENTS:

3.1 Automated and Manual Control: Automated and manual operation capability shall be provided

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3.2 Connections:

3.2.1 Input: Capacitance Bridge shall utilize rear panel three terminal BNC

3.3 User Interface: Operations performed using automated measurement software when provided by the manufacturer or developed by the AF and with the use of front panel controls.

3.3.1 Automation Command Set: The contractor shall provide full command set and operating control codes to operate with the following:

3.3.1.1 Operating System: Microsoft Windows 10

3.3.1.2 Communications Interface: GPIB IEEE-488 or IP Interface

3.3.1.3 ASCII command strings

3.4 Display/Indicators: The display at a minimum shall display Capacitance and Loss

4.0 PHYSICAL/MECHANICAL REQUIREMENTS:

4.1 Dimensions: Shall not be larger than 20 inches deep, 19 inches wide, and 10 inches tall.

4.2 Rack Mount: Shall function to complete specifications if rack mounted or used on table top

4.3 Workmanship: The workmanship shall be first class, of neat general appearance in compliance with standard commercial practices. The standards of workmanship shall be such that the system complies with the requirements set forth in this purchase description.

4.4 Selected Components: Matched and selected components shall be kept to an absolute minimum. Use of specially built non-standard components other than switches and similar individual assemblies shall be avoided.

4.5 Commercial Parts: Commercial parts and materials that are used shall have properties consistent with a precision laboratory instrument.

4.6 Metals: Metals shall be of corrosion resistant type or suitably treated to resist corrosion due to atmosphere conditions likely to be met in storage, services or transportation.

Dissimilar metals in intimate contact shall be kept to a minimum.

4.7 Continuous Operation: After the required manufacture’s warm-up period, the equipment shall meet the specifications of this purchase description and shall not display any intermittent characteristics or overheating for an extended period of not less than 120 hours (5 days) of continuous operation.

4.8 Power Requirements:

4.8.1 Electrical Power and Connections: 110V ± 10%, 50 or 60Hz ±4%

4.8.2 Electrical Safety: Equipment shall be designed such that it shall not be of any hazard to itself or to any person operating it using reasonable precautionary procedures.

4.8.3 Power Cord: Each item that requires power shall be supplied with one assembled power cord, 3 to 6 feet in length, and connectable to a standard 15 Amp, 120VAC, local power source.

4.9 Operating Environment/Storage:

4.9.1 Operating Temperature Range: The unit shall perform to full specifications at 22.8C +/-3.3C.

4.9.2 Operating Humidity Range: The unit shall perform to full specifications from 20 to 50 % RH.

4.9.3 Storage Temperature: Storage temperature of -20C to +60C without damage to the instrument.

4.9.4 Storage Humidity: Storage humidity of 15 to 80% RH without damage to the instrument.

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5.0 TESTING:

This item shall be inspected and tested at destination, as specified elsewhere in this contract.

This item shall be checked with test equipment with parameters equal to or better than those required to assure that specified performance requirements are met. Test equipment used has first echelon certification directly traceable to a National Measurement Institute or other

AFMETCAL approved equivalent laboratory when required. Tests shall be performed to assure the item meets the requirements of this purchase description. Such testing at destination does not relieve the contractor of performing all inspections and quality checks at the point of fabrication, as specified elsewhere in this contract, or as necessary, to ensure performance, as specified herein. In addition to all elements of this purchase description, all commercially published components provided with this system must, as a minimum, satisfy their commercially published performance specifications (and must be provided by the contractor).

6.0 LICENSING:

Where licensing issues apply to any part of the Scanner, such licensing and associated documents shall be obtained and provided by the contractor. Licenses shall not contravene federal law, federal procurement regulations, or the requirements of this acquisition.

7.0 Model and Serial Number Identification (IUID):

This item shall be clearly labeled with a model, serial number, and manufacturer’s name. Unique item identification labeling shall follow the Item Identification and

Valuation clause as stated in the contract.

Attachment:

Data Requirements

Attachment to

Purchase Description 19E-169A-DC

Capacitance Bridge Upgrade

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).