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Since 1984, United has manufactured computer-controlled closed loop Hardness testers. Our second generation Hardness 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 factory one-year indirect calibration for customer specified hardness testing scales. The tester can be put into operation without the need for an additional 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 is transportable to different locations.
• 15 regular scales. • 15 superficial scales. • 5 preset load dwell times including plastics. • Computer controlled application of loads.(closed-loop) • Force measured via load cell • Display resolution: points, tenths and hundredths. • Serial, A Parallel for Dot Matrix printing & PS/2 Connections. • Statistics Scale: Avg, range, min/max, Std deviation and number of tests. • Vacuum fluorescent display. • Automatic cylindrical correction. • Scale to scale conversion. • Parts IN/OUT limit alert. • Bi-directional loading capability. • Parts clamping device. • Factory direct certification: Depth, load, hysteresis & timing. • Factory 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.