MKS Instruments T3BIB Smart Throttle 60MM NW63, Non-Sealing Direct Drive, up to 105°C Viton, Analog/TTL Interface. PN: T3BIB60N21V0215

The MKS Type T3B Throttle Valve is designed for use in downstream pressure control applications. The T3B unit consists of a throttle valve with an electronic housing attached to the motor plate, a microprocessor, driver circuits which eliminate the need for a separate controller box, analog inputs for pressure or position control, and analog outputs that reflect pressure or valve position. The valve is controlled by using analog inputs. The operation of the controller is based on a digital pressure/position control algorithm that directs the valve to the proper position for either pressure or position control. The pressure or position setpoint is sent as an external voltage applied to the Auxiliary connector located on top of the unit (refer to Figure 3, page 14 of the .pdf below). The T3B unit reads the pressure signal used for control applications directly from an MKS Baratron pressure transducer.

When the T3B controller is turned off or experiences an unexpected power loss, all calibration constants and the last valve position are saved in non-volatile memory. Therefore, when you re-power the unit, it will be calibrated and ready for operation. 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 T3B 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. For complete installation and operation, see MKS T3B Throttle with Analog/TTL Interface Manual.pdf below.