What is Presscision?

What is Presscision PPT?

Presscision PPT is a test instrument that is the plumbing industry’s first of its kind digital pressure & temperature test platform designed exclusively for the plumbing industry. It utilizes state of the art technology that provides the means to significantly improve the efficiency, accuracy and reliability of regulatory and non-regulatory testing. The modern test platform provides the highest level of safety while efficiently minimizing the risk associated with a failed or improperly conducted test.

The Presscision PPT instrument was designed to take maximum advantage of modern, digital technology. Core features of the instrument design include:

1. The instrument incorporates accurate, stable, digital sensor technology for pressure and temperature measurements. The instrumentation is calibrated against a pressure reference traceable to NIST standards to guarantee and certify the level of accuracy.

2. The instrument uses test automation to remove the human from the test process. This eliminates human error in conducting the test (testing at an incorrect pressure or for an incorrect duration), and human subjectivity during the process of reading an analog gauge.

3. The instrument automatically generates a comprehensive, permanent, and tamper proof record of every test. Test records can be recalled and printed at any time, providing conclusive evidence of a test.

Unmatched Versatility

The PPT instrument provides the functionality of three separate test instruments in one easy to use device:

  • Pressure test instrument: provides accurate measurement of pressure in support of regulatory and non-regulatory test requirements using gas or liquid test media.
  • Chart Recorder: provides high-fidelity, long term (up to 48 hour) pressure and temperature recording for trend monitoring, and/or pressure transient capture and documentation.
  • Water temperature test instrument: provides accurate water temperature measurement in support of installation and adjustment of temperature limiting devices for hot water fixtures (tubs, showers, bidets, whirlpools, etc.).

What Testing Does Presscision PPT Support?

The PPT instrument is designed to support the pressure and temperature testing requirements for commercial and residential plumbing in satisfaction of regulatory codes.

The instrument can also be used for non-regulatory testing, for example:

  • To conduct “incremental” testing conducted during fabrication, potentially in advance of regulatory testing.
  • To conduct generalized leak detection: HVAC line sets, water irrigation lines, swimming pool plumbing, gas storage tanks, etc.
  • To conduct in-house testing of pre-fabricated assemblies.

 

The instrument provides pre-established test types for the conduct all pressure and temperature tests. The standard test types supported include:

Pressure tests:

Fuel gas installations (natural gas or propane)

Drain waste vent lines (DWV)

Water supply lines

Med-gas installations

Fire suppression systems

Radiant heating/cooling systems

Leak Test (non-regulatory): used for generalized leak detection

Monitor Test: used for long term pressure/temperature monitoring and pressure transient capture

Custom test (non-regulatory): used for training or for conducting short tests to check the instrument setup

Temperature tests:

Plumbing fixture water temperature testing following installation and/or adjustment of water temperature limiting devices used on tubs, showers, bidets, whirlpools, etc.

How is a test conducted?

Check out our tutorials here to see exactly how powerful and easy-to-operate the PPT instrument really is!

The instrument provides an easy to use, step-by-step process for the setup and conduct of a test. All tests conducted by the instrument use test parameters (minimum test pressure and test duration) established by the operator. As a safeguard, the PPT instrument will not allow the operator to define minimum test pressures that are outside of the measurement ranges of the attached sensor. Further, pressure tests cannot be initiated if the initial plumbing pressure is below the minimum test pressure specified by the operator.

The media, pressure and duration test parameters established by the user for the specific test type selected are also subject to state and/or local regulatory codes. The PPT instrument includes limits on allowable minimum and maximum ranges for test pressure and duration. These limits are based on model regulatory codes published by the International Code Council (ICC).

The test process includes the following steps:

  1. Specify test type and test parameters (e.g., minimum test pressure and duration)
  2. Pressurize the plumbing under test. The tests cannot be initiated if the initial plumbing pressure is below the minimum test pressure specified by the operator.
  3. Start the test. Once started, the test is conducted automatically by the instrument.
  4. At the completion of the test, the user can optionally demonstrate the pressure “return to zero” by venting the plumbing to atmosphere.
  5. Review test results and Pass or Fail the test.
  6. Enter test “job data”, including name and company of individual conducting the test, test location, and job notes.
  7. Print test report on built-in thermal printer, or use the pptConnect Windows application to produce detailed test reports in PDF format (sample report below).