Valve positioner V18345-1010121001 is a key component in the regulating valve system. It receives control signals from the regulator (usually 4-20mA analog signals) and uses this signal to precisely control the action of the pneumatic actuator, thereby achieving precise adjustment of valve position.

The V18345-1010121001 TZIDC positioner has a self-calibration function that can automatically adjust internal parameters to maintain accurate valve positioning. In adaptive control mode, control parameters can be automatically set, or operators can manually adjust these parameters to meet specific process requirements.

During the self-calibration process, the LC display will continuously display the current status. During runtime, the LC display will display important process variables, such as:

-Current position (expressed in%)

-Fault and alarm information (in code form)

Through the Hart communication protocol, extended monitoring parameters can be accessed, allowing operators to have a deeper understanding of the operating status of the locator and make necessary adjustments. Hart communication also allows the use of compatible device management systems to configure and diagnose locators.

V18345-1010121001 TZIDC positioner also has various functions for long-term operation monitoring, which can detect and indicate the following states:

-4-20mA signal out of range: When the control signal exceeds the standard 4-20mA range.

-Position beyond adjustment range: When the valve position exceeds the set range.

-Positioning timeout: If the valve does not reach the target position within the set time.

-Position controller failure: If there is a problem with the internal position control function of the locator.

-Accumulator out of limit: If the accumulator value set on the diagnostic interface exceeds the limit.

There are different types of sensors and instruments used for different steam turbine units. Check if it has the item you need, or contact us for more details.
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