Emerson KL3105X1-BA1 Intrinsically Safe Thermocouple/mV CHARM Module

The KL3105X1-BA1 intrinsically safe thermocouple/mV CHARM module captures temperature signals for Emerson DeltaV electronic marshalling systems. This unit accepts thermocouple and millivolt inputs from hazardous-area sensors. Engineers specify it for process measurements in classified plant zones.

Physical Dimensions and Weight

The KL3105X1-BA1 measures 22 mm in width and 95 mm in depth. Its housing stands 105 mm tall, which fits standard CHARM carrier slots in DeltaV cabinets. The module weighs approximately 0.12 kg, so carrier loading stays balanced during marshalling builds.

Interface and Connectivity

This module plugs into the CHARM carrier through 1 edge connector on the rear face. The KL3105X1-BA1 presents field wiring through 2 screw terminals on the front face. Consequently, technicians can land thermocouple leads without extra terminal blocks. Two LEDs report channel activity and fault status during commissioning.

Component Count and Build

Each KL3105X1-BA1 carries 1 input channel with cold-junction compensation. The assembly includes 2 screw terminals and 1 isolation barrier. Furthermore, 1 surge protection circuit guards the input against transient spikes.

Energy Storage and Power Parameters

The module draws power directly from the CHARM carrier backplane. A 0.01 F capacitor stabilizes the input filter rail during measurement cycles. Therefore, the KL3105X1-BA1 holds reading accuracy through brief supply dips. The design stores no long-term energy and needs no backup battery.

Key Technical Parameters

Integration Notes

The KL3105X1-BA1 slides into any free CHARM carrier slot without tools. Technicians assign channel tags through the DeltaV configuration software before startup. Additionally, the isolation barrier keeps hazardous-area signals separate from cabinet electronics.