Product Overview
The Emerson 8121-DI-DC-05 Digital Input Module is engineered for reliable signal acquisition in harsh industrial environments. With 16 non-isolated digital input channels, it supports 24VDC logic levels and is ideal for monitoring switches, sensors, and contact closures across a wide range of applications.
Moreover, the module offers selectable input filtering from 2 to 512 milliseconds, allowing users to optimize response time and noise immunity based on system requirements. In addition, it includes an optional pulse counting feature, enabling accurate tracking of high-speed digital events such as flowmeter pulses or encoder signals.
The 8121-DI-DC-05 is part of the PAC8000 Remote I/O family, known for its modularity, environmental resilience, and compatibility with hazardous area installations. Therefore, it is a trusted solution for distributed control systems in oil & gas, power, and manufacturing sectors.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 8121-DI-DC-05 |
| Operating Temperature | -25°C to +60°C |
| Dimensions | 132 mm x 70 mm x 70 mm |
| Weight | 0.3 kg |
Typical Applications
The 8121-DI-DC-05 is widely used in industries requiring high-density digital input monitoring. For instance:
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Oil & Gas: Monitors valve positions, limit switches, and safety interlocks on offshore platforms
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Power Generation: Tracks turbine status, breaker positions, and alarm conditions
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Water & Wastewater: Interfaces with level switches, flow sensors, and pump feedback
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Manufacturing: Captures machine status, operator inputs, and safety gate signals
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Chemical Processing: Supports hazardous area installations with robust diagnostics
In addition, its pulse counting capability makes it ideal for applications involving flow measurement or event tracking.
System Integration Experience
The 8121-DI-DC-05 integrates seamlessly with Emerson’s PAC8000 I/O system, offering open architecture support for DeltaV, Ovation, and third-party DCS platforms. Moreover, its hot-swappable design and LED diagnostics reduce downtime and simplify maintenance.
Therefore, system integrators benefit from faster commissioning, reduced wiring complexity, and long-term reliability in mission-critical environments.
FAQ
Q: What voltage does the 8121-DI-DC-05 support?
A: It supports 18–30VDC digital input signals.
Q: Can it count pulses from flowmeters or encoders?
A: Yes, it includes an optional pulse counting feature per channel.
Q: Is it suitable for hazardous areas?
A: Yes, it’s designed for use in Class I, Division 2 and similar environments.
Q: How fast can it respond to input changes?
A: Input filtering is selectable from 2 to 512 milliseconds.
Q: Does it support hot-swapping?
A: Yes, the module is hot-swappable for easy maintenance and replacement.
| Brze ponude | Primite cijenu i dostupnost BRZO od našeg posvećenog tima za korisničku podršku. |
|---|---|
| Dostava | Dostupna je ubrzana, teretna i međunarodna dostava. |
| Stanje | 100% Novo s originalnom ambalažom |
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| Luka za otpremu | ShangHai, Xiamen |
| Jamstvo | 12 mjeseci |
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| A: Da, surađujemo s više od 50 zemalja širom svijeta. Kao vodeći dobavljač u Kini, nudimo značajne popuste temeljem tržišnih trendova. |
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| A: Zahtijevamo 100% T/T (telegrafski transfer) uplatu prije otpreme. Za artikle s rokom isporuke, potrebno je unaprijed uplatiti 30% depozita, a preostalih 70% prije otpreme. Ako imate predstavnika u Kini, možete preko njega dogovoriti prijenos RMB. |
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| A: Uglavnom koristimo FedEx, DHL, UPS i BRE za dostavu. Ako imate račun kod bilo kojeg od ovih prijevoznika, možete sami obaviti otpremu. Također nudimo besplatnu dostavu za špeditere sa sjedištem u Kini. |
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