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Since 1984, United has manufactured computer-controlled closed loop Rockwell testers. Their 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 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.