KJ3224X1-BK1 | Emerson DeltaV Thermocouple/mV Input Module

Overview

The Emerson KJ3224X1-BK1 is an S-Series Thermocouple / Millivolt (mV) Input Module for the DeltaV™ distributed control system. It provides 8 channels of accurate low-voltage temperature sensor signal digitization, with built-in cold junction compensation and channel-to-channel isolation.

Technical Specifications

• Manufacturer: Emerson
• Model: KJ3224X1-BK1
• Also Known As: 12P4707X082
• Type: S-Series Thermocouple/mV Input Module
• Input Channels: 8 channels
• Input Type: Thermocouple and millivolt (mV) signals
• Local Bus Power: 12 VDC at 210 mA
• Channel Architecture: Fully isolated inputs
• Terminal Block Key Position: C1
• Dimensions: 4.3 × 12.6 × 16 cm
• Weight: 0.32 kg

Environmental & Safety Ratings

• Operating Temperature: −40 °C to +70 °C
• Shock: 10 g, half-sine wave for 11 ms
• Vibration: 1 mm peak-to-peak (2–13.2 Hz / 5–16 Hz); 0.7 g (13.2–150 Hz) / 0.5 g (16–150 Hz)
• Relative Humidity: 5 % – 95 % non-condensing
• Airborne Contaminants: ISA-S71.04-1985 Class G3
• IP Rating: IP20

Key Features

• 8-channel thermocouple and millivolt input for temperature measurement
• Built-in cold junction compensation for accurate thermocouple readings
• Channel-to-channel galvanic isolation blocks noise and ground loops
• Internal digital calibration burned into non-volatile memory—no manual trim required
• Rotary keying system prevents mismatched terminal block installation

FAQ

Q: Does this module require external calibration?
A: No. The internal digital calibration data is burned permanently into the module's non-volatile memory during factory validation, providing long-term measurement drift stability without manual analog trim adjustments.

Q: What thermocouple types are supported?
A: The module supports multiple thermocouple types. Verify specific type compatibility (J, K, T, E, etc.) against your DeltaV system manual.

Q: What terminal block do I need?
A: Use a rotary-keyed terminal block set to position C1 for proper compatibility.

Installation Guidelines

1. Set the terminal block key to C1.
2. Install the card into an S-Series carrier slot.
3. Connect thermocouple or mV sensor wiring per channel.
4. Ensure proper shield grounding and avoid ground loops across channels.

Selection Tips

• Select KJ3224X1-BK1 when you need thermocouple or millivolt temperature measurement in DeltaV S-Series.
• Verify your thermocouple type and temperature range are supported by this module.
• For RTD temperature measurement, consider the KJ3225X1-BK1 instead.