Questions and Answers_N6426726R1030.docx

N6426726R1030

Questions and Answers CSS 1.2 – Usage.

Question: Section 1.3.a calls out Class 4 equipment designed for controlled and protected environmental conditions. What is meant by natural environments?

Answer: Section 1.2 "natural environment" simply means the real-world conditions inside a building. The specific environment for the LPC is stated in 1.3.a as Class 4.

Question: Is the reference to "operational conditions aboard land, sea and air vehicles, both military and commercial during periods of operation, transportation and storage." referring to transportation/non-operation conditions? If not, are all of these operation conditions meet Class 4 environment?

Answer: Class 4 device must be durable enough to survive the journey (while packed away) so that it can then be used reliably once it arrives at a suitable, protected workspace.

CSS 3.1.1 – Pressure requirement.

Question: If the vacuum source will be integrated in the controller, will a clean and dry air or N2 be available for positive supply pressure (e.g. shop air, bottle/tank) to the controller?

Answer: Yes

CSS 3.1.2 - Accuracy requirement.

Question: Is this accuracy requirement correct? Should this be based on full scale value instead of indicate value?

Answer: No, the accuracy requirement is correct.

CSS 3.3.6 - Pressure connections.

Question: Can the pressure connection use an adapter to change from a native connection to the desired 1/4 F-NPT?

Answer: Yes

CSS 3.5.2.3 - Chassis fasteners.

Question: If a COTS benchtop controller is proposed, please confirm that this does not need to be mounted into any other permanent/ruggedize enclosure during normal operation.

Answer: Correct, it does not need to be mounted into any other permanent/ruggedized enclosure during normal operations.

CSS 3.8.4 - Dust exposure.

Question: Please confirm that the dust exposure requirement is only for the equipment when inside the proposed transit case.

Answer: No, the dust exposure means that the outer case of the LPC must be sealed well enough to keep dust away from the sensitive electronics inside (the "LPC").

SOW 5.2.1 - Training.

Question: What is the skill set of the trainee? Will they be familiar with general calibration procedures and methodologies?

Answer: The trainees are very familiar with general calibration procedures and methodologies.

SOW 5.3.3 - Instrument Calibration Procedure (ICP).

Question: Can the calibration procedure be integrated into the Operator Manual as provided in [contractor’s] standard commercial manuals?

Answer: Yes.

CSS 3.1.1 – Pressure requirement.

Question: The verbiage reads “LPC shall be able to generate and control pressure bi-directionally from -60 to 60” H2O……”.

Please confirm if the LPC can use external pressure and vacuum sources or if the LPC must self-generate the pressure over the entire range. [Company’s product] only controls pressure it does not generate pressure or vacuum. It is important to know if our product can be an acceptable solution. If an external source is acceptable, will the calibration lab provide the pressure source?

Answer: Yes, external pressure and vacuum source are used. The lab will provide the pressure source.

CSS 3.1.1 – Pressure requirement.

Question: With a pressure range for the application being -60 to 60” H20, where does the need for 15 micron come from? It would appear that as long as the vacuum source enables the LPC to set pressure as low as -60” water there would be no need for a vacuum source of 15 micron – please explain.

Answer: External vacuum source of 15 microns or lower requirement is for maintaining stability of ±0.005% of setpoint at lower set pressure values.

Question: Can the vacuum source required to set negative pressures be external to the LPC or must it be internal? It is not clear from the description.

Answer: Yes the vacuum source can be external.

Question: What is the pressure range you are looking for?

Answer: See CSS Paragraph 3.1.1

For CLIN 0003 Training Question: CDRL A006, Block 16. Remarks, Block 8. References CDRL A005 and should be A006. Please confirm this is an error and should be changed.

Response: Confirmed to be a typographical error and has been corrected with Amendment 0001.

Question: Upon award, what is the expected delivery of CLIN 0003 ? While CLIN 0003 is expected to be delivered prior to IOC, is CLIN 0003 standalone event, or will it be tied to the delivery of the first order of CLIN 0001?

Answer: CLIN 0003 is tied to the delivery of the first order.

Updated 13 February 2026 [date posted to SAM.gov]