J A Redacted.pdf
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- Attached to
- Dual Bridge
- Solicitation number
- PANRSA-25-P-0000-008460-1
About this file
This document is a Justification for Other Than Full and Open Competition (FAR 11.104(b)) from the Army Contracting Command-Redstone Arsenal for the U.S. Army Test Measurement Diagnostic Equipment (TMDE) Activity. The requirement is to purchase one Dual Source High Resistance Bridge or equivalent unit to address obsolescence and aging of existing test equipment. The procurement includes specific components: two High Resistance Scanners to maintain system continuity, two 1000Vdc Voltage sources, one Temperature Stabilized High Resistance Standard, two Air Baths to accommodate various resistance standard sizes, and one Equipment Rack for system portability and protection.
The procurement is specifically for the Army Physical Standards Labs located at Building 5435, Fowler Road Redstone Arsenal. The equipment is needed to provide improved accuracy and stability in resistance measurements, with particular emphasis on replacing outdated 20-channel scanners that use coaxial relays not found in other matrix scanners. The document indicates that an EMI shielded rack is not required based on historical measurement data, and the focus is on upgrading aging standards and maintaining measurement architecture continuity.
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JUSTIFICATION FOR OTHER THAN FULL AND OPEN COMPETITION
(FAR 11.104(b)
1. Contracting Office: Army Contracting Command-Redstone Arsenal (ACC-RSA), Space, Missile Defense and Special Programs (SMD/SP) Directorate Operations, Services and Training Division, Redstone Services Branch CCAM-CAD-B
2. Requiring Activity and or Program: U.S. Army Test Measurement Diagnostic Equipment (TMDE) Activity, Redstone Arsenal
b. Description of Supplies or Services: The U.S. Army TMDE Activity (USATA) has a requirement to purchase one Dual Source High Resistance Bridge or an equivalent unit due to obsolescence and aging of existing test equipment and standards. The new equipment will provide accuracy and stability in resistance measurements that shall be delivered to USATA’s Army Physical Standards Labs located at Building 5435, Fowler Road Redstone Arsenal. The new Dual Source High Resistance Bridge or equivalent unit shall include the following:
High Resistance Scanner: the Army requires system continuity in measurement architecture between current and upgraded scanners. The obsolesced 20 channel scanner utilizes coaxial relays that are not employed in any other matrix scanner aside from upgraded 10 channel scanners. (Quantity of 2)
Voltage source: 1000Vdc (Quantity of 2.)
Temperature Stabilized High Resistance Standard: Upgrade existing aging standard. (Quantity of 1)
Air Bath: The requirement air baths are to account for the variation in sizes of resistance standards that the Army supports such as High Resistance decade boxes and high resistance transfer standards that are much larger than single value resistance standards. (Required Quantity of 2.)
Equipment Rack: The rack is an accessory that is desired to aid in portability of the system and to maintain/ protect the integrity of sensitive connections. The Army’s Dual Source High Resistance Bridge or equal to parts does not require an EMI shielded rack and based on historical measurement data it is not a requirement. (Required Quantity of 1)
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