627B11TDC2P MKS Instruments Baratron Absolute Pressure Transducer

The MKS Instruments 627B Series Baratron Absolute Pressure Transducer is part of the MKS family of general purpose pressure transducers designed to provide accurate, reliable, and repeatable pressure measurements in the range from 1.33 x 105 Pascal (Pa) to as low as 2.67 x 100 Pa Full Scale (FS). The instrument operates with +/-15 VDC (+/-5%) input at ≤ 250 mA, and provides 0 to 10 VDC output linear with pressure. The 627B transducer exposes only Inconel to the process permitting use with corrosive or dirty gases and eliminating contamination of the process with transducer materials. Measurements are independent of gas composition and the unit has a minimum measuring range of four decades.

Using the latest single-sided, dual-electrode Inconel transducer design, coupled with a low impedance, fixed-frequency bridge signal conditioner, these instruments are capable of withstanding high overpressure conditions (310 kPa) with minimal or no shifts in output over their range. The advanced bridge signal conditioning technology provides high accuracy and operation which is extremely temperature-stable at operating pressure.

Protection from RF interference and noisy electrical environments is increased by the use of a metal case, by internal design elements, and by the use of surge and ESD suppression networks and RFI filtering on all inputs and outputs. The 627B unit meets the testing standards required for the European CE Mark when used with an overall metal braided shielded cable, properly grounded at both ends.

The 627B transducer is designed specifically to meet the needs of vacuum process systems where environmental and process conditions are particularly demanding. The 627B unit controls its temperature at 45°C, thereby minimizing the effects of ambient or process temperature variations typically encountered in process line environments.

The 627B transducer is available with optional heater status LEDs, two interface connector lock options, and a variety of fittings. The unit is capable of measuring pressure at ambient temperatures of 15° to 40°C.