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1YrXiamen, Fujian, China - Main products: ABB/GE/Bently /Emerson/Foxboro/Woodward/Yokogawa
Home > Products > TRICONEX > TRICONEX PI 3381 – Pulse Input Module for High-Integrity Speed And Flow Signals
TRICONEX PI 3381 – Pulse Input Module for High-Integrity Speed And Flow Signals
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Product Details
| HS Code | 9032899090 | Stock Status | In Stock | |
| Product Color | Brand New OR Used | Warranty | 12-month Warranty | |
| Trademark | TRICONEX | Origin | USA |
Product Description
| Brand / Model | TRICONEX PI 3381 (Pulse Input Module) |
| System Platform | Triconex TMR safety system (TriStation 1131 engineering environment) |
| Power Requirements | Supplied via Tricon backplane; no external power to the module (field devices powered per FTA design) |
| Signal Inputs | Pulse/frequency/counter inputs; supports typical sources such as magnetic pick?ups, proximity probes, and logic?level pulses (verify sensor levels and wiring with the chosen FTA) |
| Communication | Backplane link to Tricon Main Processors; no external comm ports on the module |
| Installation Method | Plug?in I/O module for Tricon chassis; field wiring via dedicated Field Termination Assembly (FTA) and system cable |
| Operating Temperature | Typically 0 to 60 °C for standard Triconex I/O modules (confirm against site specification) |
| Form Factor | Standard Tricon I/O slot form factor; front service handle and status indicators |
Turbomachinery protection – Overspeed and rotational monitoring for turbines, compressors, and expanders.
Custody transfer and flow measurement – Pulse outputs from turbine meters, positive displacement meters, and vortex flowmeters.
Machine safeguarding – Encoder or tachometer pulses for interlocks and permissives in high?speed equipment.
Burner and firing systems – Flame scanner pulse trains and speed?related permissives in BMS/FGS architectures.
Packaging and material handling – Line speed feedback and jam detection where deterministic counting is required.
Safety lifecycle confidence – The Triconex platform is TüV?certified up to SIL3; the PI 3381 fits that environment for safety?related pulse inputs.
High availability – From my experience, the TMR architecture with online diagnostics and hot?replacement typically keeps units running through single?point failures.
Long?term supportability – Mature spares strategy and stable firmware baselines make maintenance predictable.
Compatibility – Works with standard Tricon chassis, tools, and FTAs, so you can reuse existing wiring practices and test procedures.
Cost control – Multi?channel density often reduces cabinet space, wiring, and marshalling hardware compared with single?purpose counters.
One thing I appreciate is how forgiving it seems to be with real?world pulse sources. A maintenance lead at a chemical plant told us they migrated legacy turbine meter pickups to PI 3381 and, after tidying up shielding and grounding, downtime around signal dropouts basically disappeared.
Company Profile
Xiamen Xiongba E-commerce Co., Ltd. is a control system component company, located in Siming District, Xiamen, a beautiful coastal city. Xiamen Xiongba E-commerce Co., Ltd. is one of the largest control system components in China, focusing on industrial automation PLC and DCS modules. Our company has 20 years of experience in the field of automatic control. We specialize in supplying world-renowned brands: Allen Bradley, ABB, General Electric, Triconex, Honeywell, Bentley Nevada, Schneider, Hima, and even some...
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- Xiamen Xiongba E-commerce Co., LTD
- Contact nameLynn Chat Now
- Phone86-86-18059884797
- AddressRoom 2009, Chuangxiang Center, No. 1733, Luling Road, Siming District, Xiamen xmxblynn@163.com, Xiamen, Fujian
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