Hydrogen Maser Repair/Refurbished

Use this document to detail specifications/requirements for an item and/or ancillary services. 🛈 TITLE: Hydrogen maser repair/refurbishment 🛈 Requesting Lab/Division/Group: PML/Time and Frequency/Time realization and Distribution Group General Statement of Need 🛈 The NIST timescale is an ensemble of atomic clocks, of which hydrogen masers make up the largest component. Aging masers have old components nearing end of life and are experiencing degradation of performance. Repair or replacement of the worst behaved units is critical for futureproofing the whole system against failure. Replacing ion pumps, power supply modules, and thoroughly testing/repairing subsytems can extend maser lifetime without requiring new units. An upgrade to control panel and cavity register module can improve performance of older device to match currently available new systems. In particular, the new cavity register module fixes an infrequent source of frequency steps or glitches – improving reliability. The upgrade to the MHM-2020 level improves phase noise from <116 dBc to <130 dBc at 1 Hz, as well as decreasing the temperature and magnetic field sensitivity, further improving reliability. The new version implements a drift compensation algorithm, reducing the long term drift from <2*10^-15 per day to <3*10^-16/day during long term operation. Improving the predictability of the clocks will directly improve the behavior of the timescale as a whole. Items and/or Ancillary Services 🛈 Item 1: hydrogen maser refurbishment Quantity: 3 Specifications: 1.1: inspect hydrogen bulb, recoat if needed 1.2: check and adjust RF alignment 1.3: inspect thermal control board and components, repair if needed 1.4: test AC/DC power module, replace if malfunctioning or too old. 1.5: inspect quartz oscillator, replace if not operating at spec. 1.6: replace ion pumps 1.7 inspect physics package, replace and test if needed Separately Priced Options and Services: Item 2: hydrogen maser upgrade to mhm-2020 level Quantity: 3 Specifications: 2.1: replace cavity register control module with newest revision 2.2 replace front panel control module with newest revision. 2.3: wiring harness modification and replacement 2.4: replace discharge source with latest revision 2.5: replace distribution amplifers, rf outputs with latest revision [List any other item(s) or service requirements here using the same format above.] Service Requirements / Item Specifications Section 🛈 Requirements/Specifications 🛈 Planning Considerations N/A List any visits required to allow potential vendors to see site specific constraints. [Explain requirement here] US citizen required on-site (foreign nationals require preregistration 30 days prior) Vendor rep on-site more than three days Other considerations: [List other considerations to ensure an accurate quote] Shipping & Delivery N/A [Enter shipping and delivery information by item here.] Shipping criteria: Partial delivery acceptable Direct delivery to building required Contained hydrogen source requires direct delivery Building has: Loading dock Containerization preference: [Choose container] Other requirements: [List any other requirements here] Delivery date criteria: Delivery of goods, installation, and training shall be completed no later than: 12 months ARO Deliver no earlier than: [Insert date here] Other: [List other shipping, delivery, or specil requirements] Electronic Media N/A [Enter electronic media requirements by item here.] Software Electronic manuals License Key Other: [List any other Electronic Media requirements here] [Enter email address for software delivery here] Installation N/A [Enter installation requirements by item here.] Vendor technician on site Rigging Uncrating / Unpackaging Removal of packaging material Equipment set up Start-up services Turn key installation Other [Enter details here.] Note: When installation is required, TPOC or COR shall be the coordination point. Facility / Utility Considerations N/A [List site specific utility considerations by item here.] OFPM Work Order Number(s) [List any Work Order Number(s) here] Power available Voltage: [Enter voltage here] (V) Max Current: [Enter max current draw here] (A) Phase: [Choose phase] Frequency: [Typically 60Hz] (Hz) NEMA Plug Type: [Enter plug type here] (i.e.: NEMA L5-20P) Environment: [Choose environment] Other power consideration: [List any other power considerations here] Utility connections: [List relevant available utilities, pressure(s), and flowrate(s)] Other considerations: [List other considerations to ensure an accurate quote] Warranty N/A Base Manufacturer Warranty is acceptable [If you require an Extended Manufacturer Warranty, describe the warranty requirements per item here.] What is included? Labor Parts Travel Cost and liability for returns Other: [Enter other requirements here] Warranty length: [Enter warranty length here] Period Length:[Ex. month, 6 month, year etc.] Training N/A [Training requirements (who, when, what, where) here. If on-site, is travel necessary?] On-site Off-site location: [Enter location(s) here] Number of trainees: [Enter number of trainees here] Scope of training: Operations Maintenance Troubleshooting Safety Other: [Enter other scope requirements here] Training materials to be provided: [Describe requirement here] Other: [Enter other training requirements here] Note: When training is required, TPOC or COR shall be the coordination point. Inspection and Acceptance N/A [Enter inspection requirements per item here] Planned government acceptance testing (7 business days) Gov’t acceptance expected to take longer than 7 business …