The PPS71 PT Geothermal Tools are designed for extreme, high temperature downhole conditions. The robust electronics combined with vacuum flask technology allow these products to perform at 350 °C (662 °F) continuously, for four hours. The tool measures pressure and temperature, and can be configured as either a memory tool or surface read out (SRO) tool. The measurements are done with a highly sensitive silicon-sapphire (piezo) transducer and a resistance temperature detector (RTD). The RTD is exposed to the well fluids for faster response and higher accuracy.

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Pressure Sensor TypeSilicon Sapphire
Pressure Range5K psi | 10K psi
Accuracy± 0.03% FS
Resolution0.0003% FS
Temperature Sensor TypeRTD (Pt1,000; 4-wire)
Temperature Range300 °C (572 °F) | 350 °C (662 °F)
Accuracy± 0.5 °C
Resolution0.01 °C