The MKS 142AA-00001DB Baratron Absolute Heated Vacuum Switch is engineered for demanding vacuum applications requiring reliable fail-safe pressure switching without the need for a DC signal output. Heated to 100°C to reduce process effluent buildup, it measures absolute pressure up to 1 Torr full scale and features an NW16 ISO-KF fitting for easy integration. Built around the proven Baratron capacitance manometer principle, this switch uses an all-metal, all-welded Inconel sensor to provide robust performance and long-term stability, even in corrosive process environments.
Product Features
- Measures absolute pressure with 1 Torr full scale range
- Temperature controlled to 100°C to minimise process effluent condensation
- NW16 ISO-KF fitting for straightforward vacuum system connection
- Fail-safe operation with double pole Form C (DPDT) relay contacts energised below set point
- All-metal, all-welded Inconel dual electrode sensor for corrosion resistance
- LED indicator provides visual “above set point” status for easy monitoring
- Relay output readily interfaces with alarms, valve actuators, computers, and process controllers
- Reliable Baratron capacitance manometer technology for precise, repeatable switching
Benefits
- Protects vacuum systems by isolating or triggering safety responses when pressure exceeds set limits
- Heated design minimises risk of process residue buildup in CVD and etch processes
- Fail-safe relay ensures system safety even in power loss conditions
- Corrosion-resistant Inconel sensor extends device life in aggressive chemical environments
- Simple visual feedback through LED makes set point adjustments and system checks quick and clear
- Direct relay output allows integration without needing additional electronics or converters
Why Choose the MKS 142A?
Engineered for precision and reliability, the MKS 142A Baratron Heated Vacuum Switch is the trusted choice for LPCVD nitride, aluminum etch, and other critical vacuum processes. With a heated design that combats process buildup, fail-safe DPDT relays, and proven Baratron sensing technology, it delivers long-term stability and dependable protection in demanding environments, ensuring safe and consistent operation of your vacuum system.
