Products Description
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Product Description
The KJ3002X1-BG2 (12P1731X082) is an 8-channel Thermocouple Analog Input Card designed for Emerson’s DeltaV™ M-series traditional I/O subsystem. This module is capable of direct thermocouple signal input and delivers high-accuracy temperature measurements. It features isolated channels and is engineered for zone 2 hazardous installations. The card simplifies integration and supports real-time diagnostics, ensuring reliability for critical industrial automation applications.
This I/O module interfaces with thermocouple types B, E, J, K, N, R, S, and T, offering cold junction compensation and 16-bit resolution. It’s suitable for environments requiring high precision and durability in temperature measurement.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Emerson Process Management |
| Model Number | KJ3002X1-BG2 |
| Emerson P/N | 12P1731X082 |
| Input Channels | 8 |
| Sensor Types Supported | B, E, J, K, N, R, S, T, uncharacterized (mV source) |
| Input Type | Thermocouple / mV |
| Cold Junction Compensation | Local (on terminal block) or External |
| A/D Resolution | 16-bit |
| Calibration | None required |
| Open Sensor Detection | Yes (< 70 nA), 10 seconds detection time |
| Common Mode Rejection | 120 dB at DC/50/60 Hz |
| Normal Mode Rejection | 60 dB at 60 Hz |
| Isolation | Optical, 1500V DC (system), 4 channels isolated in pairs (1-4, 5-8) |
| Power Supply (LocalBus) | 210 mA @ 12V DC |
| Operating Temperature | -40°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 5% to 95%, non-condensing |
| Protection Rating | IP20 |
| Dimensions (HxWxD) | 107 mm x 41 mm x 105 mm |
| Weight | 0.281 kg |
| Mounting | DIN rail, to I/O interface carrier |
| Compliance | ISA-S71.04 G3, ATEX, IECEx, EN60079-15, EN60529, Zone 2 installation ready |
Key Features
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8-channel thermocouple/millivolt input card with high-resolution 16-bit A/D conversion
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Supports a wide range of thermocouple types and mV inputs
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Cold junction compensation—local or external selectable
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Galvanic isolation between channels and system
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Plug-and-play support with DeltaV™ system for simplified installation
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Robust diagnostics and open-sensor detection for improved reliability
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No calibration required over lifetime
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Zone 2 hazardous area compatible
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Compact form factor with IP20 protection
Advantages
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High Accuracy Measurement: ±0.5 to ±2.4°C reference accuracy, depending on sensor type
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Simplified Installation: Direct plug-in to DeltaV I/O carriers; keyed terminal blocks to prevent mismatch
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Reduced Downtime: Hot-swappable under power; diagnostics enabled
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Wide Temperature Operating Range: Ideal for harsh environments
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Future-Ready Design: Supports system expansion and modularity
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Intrinsic Safety Support: Energy-limited circuits suitable for hazardous areas
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Conformal Coating: Meets corrosion resistance standards for industrial reliability
Applications
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Chemical processing
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Oil & gas production (onshore/offshore)
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Pharmaceutical manufacturing
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Food & beverage process automation
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Power generation (thermal, nuclear)
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Water and wastewater treatment plants
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Steel and metal industries
Latest Product Report Title
“DeltaV™ M-series Traditional I/O Product Data Sheet – September 2023”
Published by Emerson Process Management, this document highlights modular I/O subsystem capabilities, including thermocouple input support in the DeltaV ecosystem.
Related Emerson Models (Same Series or Function)
| Model Number | Description | Channels | Signal Type | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| KJ3002X1-BA1 | Analog Input Card with HART | 8 | 4-20 mA | 107 x 41 x 105 | 0.281 |
| KJ3002X1-BF1 | RTD Input Card | 8 | RTD (Pt100, Ni120) | 107 x 41 x 105 | 0.281 |
| KJ3224X1-BA1 | Thermocouple Input, Series 2 | 8 | Thermocouple | 107 x 41 x 105 | 0.281 |
| KJ3225X1-BA1 | RTD Input Card, Series 2 | 8 | RTD | 107 x 41 x 105 | 0.281 |
| KJ3008X1-BA1 | Sequence of Events Input Card | 16 | Discrete Input | 107 x 41 x 105 | 0.281 |
| KJ3006X1-BA1 | Multi-Function Analog/Discrete Input | 4 | DI, High-speed Pulse | 107 x 41 x 105 | 0.281 |
Popular Emerson DeltaV Models
| Model Number | Description | Channels | Signal Type | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| KJ2003X1-BA2 | DeltaV MD Controller | N/A | Controller | 107 x 41 x 105 | 0.320 |
| KJ3221X1-BA1 | Analog Output with HART, Series 2 | 8 | 4-20 mA | 107 x 41 x 105 | 0.281 |
| KJ3001X1-BB1 | DI Card, Dry Contact | 8 | Digital Input | 107 x 41 x 105 | 0.281 |
| KJ3204X1-BA1 | DO Card, 32 Ch, High Side, Series 2 | 32 | Digital Output | 107 x 41 x 105 | 0.281 |
| KJ3004X1-BA1 | Fieldbus H1 Card | N/A | Fieldbus Communication | 107 x 41 x 105 | 0.281 |
| KJ3003X1-BA1 | Serial Interface Card | N/A | Serial Communication | 107 x 41 x 105 | 0.281 |
FAQ
Frequently Asked Questions (FAQ)
Q1: What type of sensors does the KJ3002X1-BG2 support?
A1: It supports thermocouple types B, E, J, K, N, R, S, T, and uncharacterized mV inputs.
Q2: Is cold junction compensation available on this module?
A2: Yes. It includes both local (integrated) and external cold junction compensation options.
Q3: Can this card be used in Zone 2 hazardous areas?
A3: Yes, it meets ATEX and IECEx standards and is designed for use in Zone 2 locations.
Q4: Does the module require calibration?
A4: No. It is factory-calibrated and does not require periodic calibration during operation.
Q5: Is the module hot-swappable?
A5: Yes. It can be removed or inserted while system power is energized.
Q6: What is the power consumption of the card?
A6: The module typically consumes 210 mA from the 12V LocalBus.
Q7: How is the module protected against wiring errors?
A7: It includes channel and system isolation with optical decoupling and protection keys.
Q8: What is the resolution of the input signal?
A8: The module utilizes a 16-bit A/D converter for high-resolution signal processing.
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Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
