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The Fluke 1594A and 1595A Super-Thermometers from Hart Scientific combine the accuracy of complex and expensive bridges with innovative features that simplify measurement processes and provide excellent value. Both Super-Thermometers are perfectly suited for calibrating SPRTs, PRTs, and thermistors. They are accurate enough for the primary lab and economical enough for the secondary lab. You can feel confident that every measurement you make with the Super-Thermometer falls within expected limits, easily verified at any time.

• Read SPRTs, PRTs, RTDs and thermistors (0 Ω to 500 kΩ)
• Accuracy :
• 1594A : ± 0.00006 °C, 0.8 ppm Ratio accuracy
• 1595A : ± 0.000015 °C, 0.2 ppm Ratio accuracy
• “Ratio Self-Calibration” verifies and calibrates resistance ratio accuracy
• Automatic zero-power measurements calculate thermometer probe self-heating
• Temperature-controlled internal reference resistors
• Calibrated sensing current lowers overall instrument uncertainty
• Four input channels on the front panel accept sensors under test or external references
• Two dedicated external reference input channels on the rear panel
• Standby current reduces transient effects when scanning between channels
• Channel Select keys turn measurement mode on or off at the touch of a button
• Sample rates as fast as one second
• USB data transfer and computer control
• Remote view and device control via Ethernet
• Compatible with MET/TEMP II automated calibration software and LogWare II multi-channel, real-time data acquisition software