Overview
The Emerson KL3022X1-BA1, also cataloged as the KL3022X1-BA1 AO 4-20 mA HART CHARM, operates as a dedicated analog output hardware component for current signal execution within the DeltaV CHARM I/O Subsystem. It converts controller output data into 4-20 mA field signals and supports HART communication in hazardous area installations.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | KL3022X1-BA1 |
| Brand | Emerson |
| Product Type | Analog Output 4-20 mA HART CHARM |
| Operating Temp | -40 deg C to +70 deg C |
| Power Consumption | CHARM Bus: +6.3 VDC at 32 mA; Field Circuit: +24 VDC at 30 mA |
| Output Signal | 4-20 mA analog output with HART protocol |
| Terminal Block Key Position | 4A |
| Hazardous Area Rating | II 3G Ex nA [nL] IIC Gc; II 3G Ex ec [ic] IIC Gc |
| FM Certification | FM19ATEX0173U; FM17US0286U; FM17CA0145U |
| IECEx Certification | IECEx FMG 19.0019U |
| UKEX Certification | FM21UKEX0017U |
| Contaminant Protection | ISA-S71.04-1985 Airborne Contaminants Class G3 |
| Relative Humidity | 5 to 95% Non-Condensing |
| Shock Resistance | 10 g half-sine wave for 11 ms |
| Vibration Resistance | 1 mm peak to peak from 2 to 13.2 Hz; 0.7 g from 13.2 to 150 Hz |
4-20 mA HART Loop Signal Management
The KL3022X1-BA1 provides analog current output control through the DeltaV CHARM architecture. It generates 4-20 mA field signals and maintains HART loop communication for device parameter access and diagnostics.
Furthermore, the module supports channel-to-channel signal management within the CHARM I/O design. The field circuit receives power from the 24 VDC supply path, while the CHARM Bus provides the internal module operating voltage.
The hazardous area approvals allow installation in classified environments when users follow the specified DeltaV Zone 2 installation requirements. The module uses terminal block keying to prevent installation with incompatible CHARM types.
Frequently Asked Questions
Q: Can the KL3022X1-BA1 be removed or inserted while system power remains energized?
A: No. Users cannot remove or insert this unit with system power energized unless the installation area is confirmed as non-hazardous.
Q: Does the KL3022X1-BA1 require user calibration?
A: No. The module does not require calibration and contains no user serviceable parts.
Q: How does the terminal block keying function operate?
A: The keying system automatically sets compatibility when the CHARM is installed on the terminal block. Users must reset the terminal block keys before installing another CHARM type.
Field Installation Guidelines
- Install the KL3022X1-BA1 according to the DeltaV Electronic Marshalling CHARM I/O Subsystem Zone 2 installation instructions.
- Verify hazardous area classification before module removal or insertion operations.
- Confirm terminal block key position compatibility before mounting the CHARM module.
- Complete the required I/O loop assessment for energy-limited nodes before commissioning.
- Maintain proper field wiring separation between signal circuits and high-voltage sources.
- Connect shielded signal cables according to the site grounding specification to reduce electromagnetic interference.
- Do not disassemble the module because it contains no user serviceable components.
- Verify environmental conditions remain within the specified operating temperature, humidity, shock, and vibration limits.
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