ABB V18345 is is an electronically configurable positioner with communication capabilities designed for mounting to pneumatic linear or rotary actuators. Due to local operation and auto adjustment,it is the easiest one to commission and operate.
TZIDC V18345 Electro-Pneumatic Positioner
The TZIDC is an electronically configurable positioner with communication capabilities designed for mounting to pneumatic linear or rotary actuators. It features a small and compact design, a modular construction, and an excellent cost-performance ratio.
Fully automatic determination of the control parameters and adaptation to the final control element yield considerable time savings and an optimal control behavior.
An I/P module with subsequent pneumatic amplifier is used to control the pneumatic actuator. The well-proven I/P module proportionally converts the permanent electrical setpoint signal from the CPU into apneumatic signal used to adjust a 3/3-way valve.
The air flow for pressurizing or depressurizing the actuator is continuously adjusted. As a result, excellent control is achieved. When reaching the set point, the 3/3-way valve is closed in center position to minimize the air consumption.
Four different pneumatics versions are available: for single-acting or double-acting actuators, each with “fail-safe” or “fail-freeze” function.
For 4 … 20 mA two-wire technology
Low operating cost
Robust and environmentally ruggedized
Wide operating temperature range
— -40 ... 85 °C (-40 ... 185 °F)
Easy to commission, “single pushbutton” operating
Mechanical position indicator
ATEX, FM, CSA, GOST and IECEx approvals
For SIL2 safety loops
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