V18345-1004210001 ABB TZIDC Electro-Pneumatic Positioner
The V18345-1004210001 is a digitally communicable, intelligent positioner within the ABB TZIDC series, engineered for precise valve control in high-vibration and hazardous environments. Featuring an integrated HART communication port and a robust aluminum housing, the V18345-1004210001 ensures stable signal processing with a characteristic deviation of ≤ 0.5%. This model incorporates a “Fail-Freeze” safety mechanism, maintaining the current valve position during electrical power failures to ensure process continuity.
Configuration Breakdown & Part Number Logic
| Code Segment | Selection Value | Technical Definition |
|---|---|---|
| Case / Mounting | 1 | Varnished Aluminum, IP 65 (NEMA 4X) for NAMUR/Rotary mounting. |
| Input / Comm | 0 | LKS adapter plug & FSK module for HART communication. |
| Explosion Proof | 4 | ATEX EEx n A II T6 (Zone 2 non-sparking). |
| Output Position | 2 | Fail-Freeze (Position stays put on signal loss). |
| Pneumatic Conn. | 1 | 1/2-14 NPT Cable Entry; 1/4-18 NPT Air Pipe Thread. |
Technical Performance Matrix
- Manufacturer: ABB
- Input Signal: 4-20 mA nominal range (Min. 3.8 mA for startup).
- Supply Pressure: 1.4 to 6 bar (20 to 90 psi) instrument-grade air.
- Air Consumption: Ultra-low < 0.03 kg/h steady-state.
- Operating Temperature: Robust performance from -40 °C to +85 °C.
- Travel Range: Adjustable 25° to 120° for rotary or 25° to 60° for linear actuators.
- Control Philosophy: Single push-button commissioning with auto-adjust function.
- Safety Integrity: Certified for use in SIL2 safety loops.
Oiltech Controls Limited’s Insight
- Application Scenario: The V18345-1004210001 is ideal for oil and gas refineries and chemical processing where “Fail-Freeze” is required to prevent surge or process upset.
- Diagnostic Capability: Advanced onboard diagnostics monitor air leakage, travel time prolongation, and positioning deviation limits.
- Engineering Review: Unlike standard fail-safe models, this 1004210001 configuration ensures the valve does not slam shut, which is critical for liquid flow systems to prevent water hammer.
- Device Compatibility: Seamlessly integrates with Fisher, Masoneilan, and Flowserve actuators via NAMUR mounting kits.
- System Advantage: The high-resolution A/D conversion (>4000 steps) provides smooth control for modulating valves.
Logistics & Service Commitment
- Quality Assurance: 12-month standard warranty on all new V18345-1004210001 units.
- Shipping Partners: Fast global dispatch via FedEx, UPS, and DHL.
- Weight: 1.7 kg net weight; secure export packaging used for international transit.
- Processing: Most orders are ready for carrier pickup within 24-48 hours of confirmation.
Expert FAQ & Procurement Guide
- What is the significance of the “Fail-Freeze” function on the V18345-1004210001?
In the event of an electrical failure, the pneumatic output is blocked, holding the actuator in its last known position. - How does the “Single Push-Button” commissioning work?
The V18345-1004210001 features an Autoadjust routine that automatically detects mechanical end positions and optimizes PID parameters. - Can this positioner be used with double-acting actuators?
Yes, the output function is configurable for both single and double-acting pneumatic actuators. - Is instrument-grade air mandatory for this model?
To prevent blockage, air must be oil/water/dust-free per Class 3 DIN/ISO 8573-1 standards (max 5 µm particle size). - How do I calibrate the V18345-1004210001 remotely?
Remote calibration and monitoring are performed via the 4-20 mA signal line using the HART protocol and an FSK modem.
For technical support or bulk inquiries, reach us at:
info@oiltechcontrols.com or
WhatsApp: +86 158 8020 0923.
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