Emerson KL3101X1-BA1 | Intrinsically Safe Analog Input CHARM

Product Description

The KL3101X1-BA1 is an intrinsically safe (I.S.) analog input CHARM module from Emerson, engineered for DeltaV systems. It allows safe acquisition of 4–20 mA signals from HART-enabled field devices in hazardous environments, providing both measurement and diagnostic capabilities in a compact CHARM form factor.

This module is designed for installations in Zone 2 / Class I Division 2 areas, combining intrinsic safety, robust environmental tolerance, and compliance with ATEX, IECEx, FM, and UKEX standards. Its low-power CHARM bus interface and reliable 24 VDC field circuit support stable operation under demanding conditions.

Core Technical Specifications

• Model: KL3101X1-BA1

• Module Type: Intrinsically Safe Analog Input (I.S.) CHARM

• Signal Type: 4–20 mA analog input with HART communication

• Safety Classification: Intrinsically Safe (I.S.)

• CHARM Bus Power: +6.3 VDC, 0 A nominal

• Field Circuit Power: +24 VDC at 60 mA

• Terminal Block Key: A1

• Operating Temperature: –40 °C to +70 °C

• Relative Humidity: 5–95%, non-condensing

• Shock Resistance: 10 g, half-sine, 11 ms

• Vibration: 2–13.2 Hz: 1 mm peak-to-peak; 13.2–150 Hz: 0.7 g

• Airborne Contaminants Rating: ISA-S71.04 Class G3

• Weight: 0.14 lbs

Safety & Compliance

• Hazardous Atmosphere Ratings:

• II 3(1) G Ex ec [ia Ga] IIC Gc

• II 3G (1D) Ex ec [ia IIIC Da] IIC Gc

• Class I, Division 2, Groups A–D

• Zone 2 AEx ec [ia Ga / IIIC Da]

• Certifications: ATEX, IECEx, FM, UKEX

• Installation Note: Must not be inserted or removed while energized unless the area is confirmed non-hazardous

Functional Advantages

• Intrinsically safe design suitable for hazardous locations

• HART support enables device diagnostics and configuration without extra wiring

• Wide environmental tolerance for extreme temperatures and airborne contaminants

• Compact CHARM format integrates seamlessly into DeltaV I/O systems

• Maintenance-free operation; no calibration required

Applications

• Oil and gas process control panels

• Chemical and petrochemical plant field monitoring

• Remote hazardous area I/O installations

• Integration with DeltaV distributed control systems

FAQ

Q: Can this module operate in Zone 2 / Class I Div. 2 hazardous areas?
A: Yes, the KL3101X1-BA1 is certified intrinsically safe for Zone 2 / Class I Division 2 locations.

Q: Does it require periodic calibration?
A: No, the module is maintenance-free and factory-calibrated.

Q: What HART capabilities does it support?
A: Full pass-through communication for diagnostics and configuration of HART-enabled transmitters.