Valve controllers
9 Feb 2004
Tyco Valves & Controls has launched an integrated system of valve control accessories, all suitable for hazardous area or general process applications.
Named AVID (Actuator Valve Interface Devices), the range includes position monitors, analogue and 'smart' positioners, control position monitors and network monitors.
The range includes the ZRPlus control position monitor, which features hermetically sealed feed switches and integrated monitoring and control. It can be used to monitor and control automated valves in corrosive environments.
Another AVID product, the Analogue SmartCal intelligent positioner, collects historical valve data such as input signals and actuator pressures, allowing operators to optimise the performance of their control valves. The device can be mounted up to 50m from the valve site. This makes it especially useful for corrosive conditions, says Tyco, or for applications involving high vibration.
The EaziCal IR analogue positioner features two calibration methods. It has an integrated touchpad for local manual operation, but if the unit is located in an area unsuitable for plant personnel, it can be calibrated via an infra-red handheld remote control.
The whole range of products is based around a ModMount low-profile mounting base, with a HiVie visual display and an EasiFix switch adjustment system.
