MKS Istruments Baratron 690A Pressure Transducer 1000 Torr - $500 - (Ponca City, OK)
MKS Baratron 690A pressure transducer, 1000 Torr range. Used, tested, and functional (Picture 5 is open to atmosphere at ~800' above sea level, Picture 6 is connected to vacuum system operating at 1x10-6 Torr). 1/4" Female VCR Fitting. Model number 690A13TRC. Listing only includes the Baratron, no cables or readout. Additional information about the product from MKS: The Baratron® 690A is designed for high accuracy pressure measurements with single-ended dual electrode/AC bridge instrumentation that is extremely stable and designed to minimize the effect of temperature changes. The 690A operates at an internal temperature of 45°C. By incorporating temperature control into the head, the accuracy is improved to as high as 0.05% of reading.Excellent thermal stability due to extremely low temperature coefficientsHighest accuracy pressure measurement instrument availableSix decades of measurement often eliminates several transducers with limited resolution

ADVERTISEMENT
From ebay.com - 1 month ago
