+1 (603) 924-5922support@testvonics.com

Repair & Overhaul Services

TTU-205 Repair and Overhaul TTU-205 Upgrades KTS-2000 Remote Control Unit Retrofit TestVonics Repair Facility


TestVonics provides overhaul, repair, and reconditioning services for a variety of other air data test sets and parts. Overhaul services feature a complete teardown inspection; where assemblies are stripped down, overhauled, and/or replaced with new assemblies - then calibrated and re-certified (if applicable). In addition to overhauls and repairs, our facility can also perform upgrades and modifications for a variety of air data test equipment.
  • High Precision Primary and Secondary Standards
  • NIST Traceability for all Calibrations
  • Data Package with Calibration Certificate and Certificate of Conformance
  • 'As Received' and 'As Returned' data included with Test Report
  • Calibrations performed IAW OEM Manuals and/or Military Technical Orders
Calibration Services
TestVonics has two primary pressure standards. Our newest asset is a Fluke / DHI ADCS-601 Calibrator. The ADCS-601-AF is a fully automated reference level Air Data Calibration Standard for the verification and calibration of air data range instruments, in particular Air Data Test Sets (ADTS). ADCS-601-AF’s intended function is the static pressure calibration of Pt and Ps range pressure transducers with very low measurement uncertainty. ADCS-601-AF covers the pressure range of 1 to 380 kPa (0.3 to 120 inHg) in absolute and gauge modes with fully automated operation and state of the art uncertainty. The heart of the system is a fully automated PG7601 piston gauge or pressure balance that covers the range of 15 to 380 kPa (4.5 to 120 inHg). The PG7601 range is extended down to 1 kPa (0.3 inHg) by an FPG8601 force balanced piston gauge with automated pressure control.

TestVonics calibration lab also contains a Ruska Model 2465A Dead Weight Tester Gas Piston Gauge that can cover pressures from 0.2 to 1000 psi, gauge or absolute, with a total uncertainty to 10 parts per million. Operation of the 2465A is automated to insure attainment of the ultimate performance achievable. TestVonics also employs several secondary standards including the AC-2500 Air Data Calibrator, Kollsman Precision Pressure Controller-Monitor (PPCM) and King Nutronics 3682. All of these secondary standards are calibrated with direct traceability through NIST.

TestVonics can re-characterize and calibrate TTU-205 and PPCM transducer and blast new proms. Our calibrations allow for a point by point calibration shift, instead of a standard tilt and offset typically performed.

In order to maintain RVSM compliance, it is recommended that test sets (such as the TTU-205J) be calibrated and certified on a 6-month calibration cycle. Other non-RVSM test sets are recommended to be calibrated on a 9-month cycle. Calibrators (like the PPCM and Ruska 3682) are typically calibrated on a 3-6 month cycle, depending on the equipment they are calibrating. All equipment is returned with an Incoming Inspection and Repair Report, Calibration Test Data (Before and After if required) and applicable reports, Pressure Calibration Certificate, and a certified Calibration label is affixed to the front panel.

The turn-around time for each piece of equipment varies. If there is not a lot of work necessary and all the parts are in stock, the turn around time is typically 2 weeks. However, that is dependent on several other factors including our current workload within the shop, the type of equipment, and how quickly the customer approves repairs. When we send you the teardown, typically we will let you know when to expect the equipment to leave our facility by.
Our Repair Process
When the equipment arrives, it is taken out of its case and given a thorough visual and mechanical inspection. If repairs are necessary, TestVonics will provide a full teardown of all costs and get approval prior to doing any work (unless asked to do otherwise). When the unit is repaired, it is checked for accuracy and calibrated to stringent requirements. The unit is then repacked and shipped back with Incoming & Outgoing Inspection Reports, Calibration Data (before and after if required) and Calibration Certificate.

Turn-around times for equipment vary based on what is currently in our repair queue. If the unit requires minimal work and all the parts are in stock, turn around times are typically two (2) weeks. This is dependent on several other factors including current workload, equipment type and how quickly repair estimates are approved. Expedite of repairs and calibrations are available. Contact us for more information.
Our Capabilities
In addition to our own equipment, TestVonics regularly services other manufacturers equipment, including:
  • Kollsman TTU-205/D , P/N: 18910480000 , NSN: 4920-01-141-0974
  • Kollsman TTU-205/D , P/N: 18910480002 , NSN: 4920-00-931-1457
  • Kollsman TTU-205/F , P/N: 18910480001 , NSN: 4920-01-214-2410
  • Kollsman TTU-205/G , P/N: 18910480008 , NSN: 4920-00-000-0190
  • Kollsman TTU-205/H , P/N: 18910480104 , NSN: 4920-01-466-1502
  • Kollsman TTU-205/G , P/N: 18910480008 , NSN: 4920-00-000-0190
  • Kollsman TTU-205S/S , P/N: 18910460000 , NSN: 4920-01-247-9723
  • Kollsman TTU-205/J , P/N: 200317658-30 , NSN: 4920-01-512-7743
  • Kollsman KTS-2000 , P/N: 18910920000 , NSN: 4920-01-588-4428
  • Kollsman KTS-2000 , P/N: 18910920001 , NSN: 4920-01-588-4428
  • Kollsman KTS-2000 , P/N: 18910920002 , NSN: 4920-01-554-4549
  • Kollsman KTS-1000 , P/N: 18910910000 , NSN: 6625-01-606-1421
  • Kollsman HMADTS , P/N: 18906300001 , NSN: 4920-01-550-2455
  • Kollsman PPCM , P/N: 18905810002 , NSN: NSN: 4920-01-512-3910
  • Kollsman PPCM , P/N: 18905810000 , NSN: NSN: 4920-01-104-8652
  • Kollsman PPCM , P/N: 18906160001
  • Kollsman PPCM , P/N: 18906160004
  • Kollsman PPCM , P/N: 18906160005
  • King Nutronics 3682 , P/N: 3682-1-1 , NSN: 6695-01-173-5281
  • King Nutronics 3688-A , P/N: 18910920001 , NSN: 4920-01-361-8907
  • Druck GE Sensing ADTS 403 , P/N: ADTS403 , NSN: 4920-01-562-3103
  • Druck GE Sensing ADTS 405F , P/N: TS-4508/U , NSN: 4920-01-449-8072
  • Druck GE Sensing ADTS 405F , P/N: TS-4463/P, P/N: ADTS405-1-8159-M4 , NSN: 4920-01-388-6790
  • Druck GE Sensing ADTS 405F , P/N: ADTS405-4193-1 , NSN: 6625-99-567-0696
Repair Services Brochure

Recommended Equipment Shipping Instructions

For more information or if you have a questions regarding our calibration services, call us at (603) 924-5922.