Description

Product Description

Overview

The KJ3202X1-BA1 from Emerson is a high-density Discrete Input (DI) Card for the DeltaV Series 2 Distributed Control System. This 32-channel module is designed for monitoring dry-contact field devices such as switches, limit sensors, and pushbuttons. The card provides internal sourcing voltage, eliminating the need for external loop power at the field device, which simplifies installation and reduces wiring complexity.

Key Features

High-Density Input Capability

• 32 channels in a compact footprint maximize I/O density per carrier.

• Suitable for large-scale operations requiring extensive digital signal monitoring, including valve status and motor control centers.

Integrated Loop Power

• Supplies 24V DC to field contacts internally, removing the need for separate power distribution.

• Each channel supports up to 1 A, with a total of 3 A per card for field circuits.

Configurable Digital Filtering

• Prevents false triggering from contact bounce or electrical noise.

• Software-adjustable filtering (0–20 ms) ensures reliable detection of genuine state changes.

Hot-Swappable and Auto-Sensing

• Can be replaced while the system is energized without disrupting other cards on the carrier.

• DeltaV software automatically identifies the card and serial number upon insertion, enabling rapid commissioning.

Advanced Diagnostics

• Onboard diagnostics provide real-time card health monitoring.

• Front-panel LEDs indicate card status and individual channel activity.

Robust Environmental Protection

• Rated for -40°C to +70°C operation.

• Conformal coating protects against G3-class corrosive environments.

• IP20 protection rating and galvanic isolation safeguard both field circuits and local bus.

Safety and Installation Notes

• Non-sparking field circuits must be de-energized before insertion or removal.

• Rotary keying ensures correct matching between terminal blocks and I/O channels.

• Contains no user-serviceable parts; calibration is not required.

• Installation in hazardous zones must comply with Zone 2 safety requirements and DeltaV installation manuals.

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Technical Specifications

Feature	Specification
Model Number	KJ3202X1-BA1
Channels	32
Input Type	24V DC Dry Contact (Sourcing)
Detection Threshold	Typically > 2 mA for “ON”
Field Circuit Rating	30 VDC, 1 A per channel / 3 A per card
Local Bus Power	12 VDC at 150 mA
Bussed Field Power	30 VDC at 3 A
Input Filter	Configurable, 0–20 ms
Isolation	250V AC between field and local bus
Operating Temperature	-40°C to +70°C
Shock Resistance	10 g, ½ sinewave, 11 ms
Vibration Resistance	1 mm p-p (2–13.2 Hz), 0.7 g (13.2–150 Hz)
Humidity	5–95% non-condensing
Contaminant Resistance	ISA-S71.04 Class G3
IP Rating	IP20

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Application Scenarios

Ideal for high-density digital monitoring in process plants, manufacturing facilities, and motor control centers. The KJ3202X1-BA1 provides reliable state monitoring in hazardous zones, including oil, gas, chemical, and water treatment applications.

FAQ

Q: Can this card be hot-swapped in a running system?
A: Yes, it can be replaced while the carrier is energized without impacting other cards.

Q: Do I need external power for field contacts?
A: No, the card provides internal 24V DC loop power to all 32 channels.

Q: What safety measures are required in hazardous areas?
A: Non-sparking field circuits must be de-energized before removal or insertion. Installation must follow DeltaV Zone 2 instructions.

Q: How are false signals prevented from contact bounce?
A: Each channel includes configurable software filtering to eliminate spurious activations.

Similar Models: KJ3202X1-CA1 (wet contact version), KJ3204X1-BA1 (64-channel DI card)

Specifications

• Brand: EMERSON

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems