United Tru-Blue II Universal Hardness Tester

Tru-Blue II
Hardness Testing System

Since 1984, United has manufactured computer-controlled closed loop Rockwell testers. Our second generation Rockwell tester, the Tru-Blue II is the lowest priced US manufactured closed loop tester that meets ASTM E18, ISO 6508 specifications and NIST recommendations.

The Tru-Blue II comes standard with a Direct certification of the hardware calibration with NIST traceability and a one-year indirect calibration for customer specified hardness scales. Along with a user friendly control panel, the tester can be put into operation without the need for an initial on-site calibration or manufacturers assistance!

Having no dead weights, pivot points and knife edges to move out of adjustment, the Tru-Blue II can be moved to a new location without having to be re-calibrated. When mounted on United´s optional mobile stand, the Tru-Blue II becomes portable for use in different departments.

Tru-Blue II Universal Features:

• 15 regular scales.
• 15 superficial scales.
• 5 preset load dwell times including plastics.
• Computer controlled application of loads.
• Display resolution: points, tenths and hundredths.
• Serial, Parallel & PS/2 Connections.
• Statistics: Avg, range, min/max, Std deviation and number of tests.
• Vacuum fluorescent display.
• Cylindrical correction.
• Hardness value conversion.
• Parts IN/OUT limit alert.
• Bi-directional loading capability.
• Parts clamping device.
• Direct certification: Depth, load, hysteresis & timing.
• Indirect certification: B, C, 30N & 30T. Additional scales available.
• CE approved.
• 2-year warranty.
• Vertical capacities: 10, 14, 18 & 20 inches.Custom vertical heights available.
• Throat depth: 5.5 in 120-240 VAC, 50/60 Hz. Single phase, 1 amp.

• Brinell:
  • Test Forces in Kg.:2, 2.5, 4, 5, 6.25, 7.8125, 10, 15.625, 20, 30, 31.25, 40, 62.5, 100, 120, 125, 150, 187.5 and 250.
  • Test Dwell Settings selectable in 1 sec. increments: 5-30
  • Direct reading of Brinell indentations. One hardness range calibration.
• Vickers:
  • Test Forces in Kg: 3, 5, 10, 30, 50, 100, and 120.
  • Test Dwell Settings selectable in 1 sec. increments: 5-30
  • Direct reading of Vickers indentations. One hardness range calibration.