Emerson KJ3212X1-BA1 Multi-function I/O Card

The Emerson KJ3212X1‑BA1 is a Series 2 Multi-function I/O card designed for DeltaV™ traditional I/O systems. It provides a highly versatile I/O solution that supports multiple signal types—such as pulse count, analog inputs/outputs, and discrete channels—on a single card. This compact and rugged design is certified for hazardous environments and is ideal for space-saving installations where high reliability and flexible signal handling are required.

Key Features

• Supports pulse count, analog input/output, and discrete I/O

• Series 2 traditional DeltaV™ I/O architecture

• Hot-swappable (in non-hazardous areas) for easy maintenance

• Compact size with keyed terminal blocks for miswiring prevention

• High-speed pulse input capability (up to 50 kHz)

• Certified for use in hazardous environments

• No calibration required and minimal maintenance

Technical Specifications

Industry Applications

• Oil & Gas: Wellhead monitoring, flow metering, and speed sensing

• Chemical & Petrochemical: Multi-signal control loops in hazardous areas

• Power Generation: High-speed pulse metering and analog control feedback

• Manufacturing: Discrete automation with mixed I/O configurations

• Utilities: Field data acquisition and flexible I/O expansion

Product Advantages

• Combines multiple I/O types in one module, saving cabinet space

• Suitable for hazardous area installations without additional enclosures

• Hot-swappable design minimizes system downtime

• Eliminates the need for multiple dedicated I/O cards

• High-speed response suitable for real-time applications

• Easy integration with DeltaV™ DCS systems

Frequently Asked Questions (FAQ)

1. What types of signals can the KJ3212X1-BA1 handle?

   It supports pulse count, analog input/output, and discrete I/O signals.

2. Can the card be replaced while the system is running?

   Yes, it is hot-swappable in non-hazardous areas.

3. What is the maximum frequency supported for pulse inputs?

   The card supports up to 50 kHz high-speed pulse inputs.

4. What are the power requirements for this card?

   It requires 12 VDC from the backplane and 24 VDC for field circuits.

5. Is the card suitable for hazardous environments?

   Yes, it is certified for ATEX Zone 2 and FM Class I Div 2 applications.

6. Does it require calibration?

   No, the module does not require calibration.

7. How does the card prevent incorrect installation?

   It uses rotary-keyed terminal blocks to avoid mismatches.

8. What environmental conditions can it withstand?

   It operates in temperatures from -40 °C to +70 °C and resists shock and vibration.

9. What system is it compatible with?

   It integrates seamlessly with Emerson’s DeltaV™ traditional I/O system.

10. What is the physical size and weight of the module?

    The card measures approximately 120 × 50 × 140 mm and weighs about 0.16 kg.