TestVonics Calibration Services
TestVonics offers calibration services for a variety of Air Data Test Equipment. We can provide ANSI/NCSL Z-540 calibrations with Calibration Certificate and Reports complying with ISO/IEC 17025 Paragraphs 5.10.1 & 5.10.4. Calibrations can be performed on a variety of Air Data Test instrumentation and Equipment. TestVonics calibrations are traceable through the National Institute of Standards and Technology (NIST).

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 tracability through NIST.
TestVonics can recharacterize 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.
Calibration Process
Need to send in a test set for calibration? Contact TestVonics to ensure that we can correctly calibrate your piece of test equipment. If we can, you will be given an RMA Number (ie. TN-XXXX). If you would like to participate in our HMTC Program (see below), we will ship you out a transport container for your TTU-205 or PPCM. If you have any questions feel free to ask and we should be able to answer and explain the process to you.
Calibrations
TestVonics can calibrate the TTU-205C/E, D, F, G, H, and J Test Sets as well as Kollsman PPCM and King Nutronics 3682 and 3688. We have a state of the art Fluke / DHI ADCS-601 Calibrator and a Ruska 2465A Dead Weight Tester as well as several other secondary standards. Call today for pricing information and an RMA number.
Repair & Overhaul Services
We can repair any TTU-205, from the C/E all the way up to the TTU-205J. We have more knowledge and stock more parts than anyone. Call us today for shipping instructions and to receive an RMA number prior to shipment.
Have a test set that you would like to use that is in a state disrepair? When the unit comes in we can do a complete teardown inspection and quote you what is needed to get it back up and running. We charge a fee for the teardown and inspection report, however the fee is waived if you decide to go ahead with the repair.
Spare Parts
Know what's wrong with your test set, but need a part? TestVonics stocks the largest TTU-205 inventory on the globe. Parts are readily available for the TTU-205C/E, TTU-205D, F, G, H and TTU-205J testers as well as the PPCM.
Click the link above to open and print the Spare Parts brochure.







