Phase II PHT-975 Digital Shore A Durometer

Measure the hardness of soft rubber and plastics with a portable digital Shore A durometer

The Phase II PHT-950 Digital Shore A Durometer is designed for measuring the indentation hardness of soft rubber, elastomers and plastics. Its lightweight handheld design and digital readout make it suitable for routine material inspection, production quality control and laboratory testing.

Digital Shore A hardness measurement

The PHT-950 measures from 0 to 100 HSA with a resolution of 0.1 H. The digital display eliminates the need to interpret a small analog dial and allows hardness values to be read directly while testing the material.

Designed for soft rubber and plastics

Shore A is commonly used for softer elastomeric and polymeric materials. The PHT-950 is specifically identified by Phase II for testing soft rubber and plastics, making it useful for comparing material hardness and monitoring consistency between components, samples or production batches.

Capture and analyze multiple measurements

Beyond displaying an individual hardness reading, the PHT-950 provides useful statistical functions for repeated testing. It can report the mean, minimum and maximum values, number of measurements and standard deviation. The instrument can also lock in the peak value.

RS-232 output for transferring test data

An RS-232 output allows the PHT-950 to interface with compatible external equipment for applications where hardness results need to be transferred or recorded electronically.

Portable battery-powered operation

The ergonomic, lightweight instrument operates on four AAA batteries, allowing measurements to be performed without an external power supply. A low-battery indicator helps the operator identify when battery replacement is required.

Testing to recognized Shore hardness standards

Published documentation for the PHT-950 identifies the instrument for testing in accordance with ASTM D2240, ISO 7619 and DIN 53505, established methods for determining indentation hardness with Shore durometers.

Optional Shore A test blocks

Phase II offers a seven-piece Shore A test block kit for periodic verification of durometer performance. The color-coded blocks cover hardness values from approximately HA 30 through HA 90 and provide a convenient way to perform routine instrument checks.

Specifications

Frequently Asked Questions

What materials can the PHT-950 test?

The PHT-950 is a Shore A instrument designed primarily for softer rubber, elastomers and plastics. The appropriate Shore scale should always be selected according to the material and applicable test method.

What is the difference between Shore A and Shore D?

Shore A is generally used for softer rubber and plastic materials, while Shore D is intended for harder rubber and plastics. Phase II offered the PHT-950 for Shore A testing and the PHT-975 for Shore D testing.

Can the PHT-950 calculate an average from several measurements?

Yes. Its statistical functions include mean, minimum, maximum, number of measurements and standard deviation, which are useful when multiple readings are taken across a specimen or production batch.

How can I periodically check the durometer?

The optional Phase II PHT-950-25 kit contains seven Shore A test blocks covering approximately HA 30 to HA 90. They are intended for periodic verification of durometer performance.

Is the PHT-950 still the current Phase II model?

No. The PHT-950 is an earlier Phase II digital Shore A durometer that has been discontinued. The PHT-960 is its newer replacement; however, the specifications on this page apply specifically to the PHT-950.