Beckhoff KL3222 2-Channel Analog Input Terminal

Overview

KL3222 Original New in Stock

Parameters

Note: Specifications are indicative. The KL3222 is a high-precision K-Bus RTD input terminal. Exact supported sensor types, wiring modes, resolution, accuracy, temperature range, and diagnostic functions must be verified against the current Beckhoff datasheet for your revision. The KL series differs from the EtherCAT EL series in the bus system used.

Core Advantages

1. High-Precision RTD Measurement
Provides improved measurement accuracy compared with the standard KL3202, enabling more reliable temperature measurement in demanding applications.

2. Two RTD Inputs in a 12 mm Housing
Two independent high-precision RTD input channels in a compact Bus Terminal housing, suitable for dual-point precision temperature measurement in K-Bus systems.

3. Direct RTD Connection
Connects PT100/PT1000 resistance temperature detectors directly to the Bus Terminal, providing temperature measurement without external transmitters.

4. 2-/3-/4-Wire Connection Support
Supports multiple wiring modes, with 3- and 4-wire connection compensating for line resistance to improve measurement accuracy. Confirm the exact supported modes in the datasheet.

5. K-Bus System Integration
Integrates into the Beckhoff Bus Terminal system via the K-Bus, working with Bus Couplers and Bus Terminal Controllers for fieldbus connectivity.

6. Channel-Wise Diagnostic Capability
Status LEDs and wire-break detection (where supported) support commissioning and fault identification.

7. Compact and Robust Industrial Design
IP20-rated, DIN-rail mounted, with electrical isolation between the input channels and the K-Bus.

Applications

• Precision temperature monitoring — applications requiring tighter accuracy than standard RTD terminals.

• Machine building — high-accuracy temperature monitoring of bearings, motors, and gearboxes.

• Process technology — precise temperature measurement in process plants.

• Calibration and test benches — high-accuracy temperature acquisition in validation and R&D rigs.

• HVAC and building automation — precise duct and pipe temperature measurement.

• OEM equipment — embedded high-precision temperature sensing in industrial machines.

• Food and pharmaceutical — temperature monitoring in regulated processes.

FAQ

Q1: What is the KL3222 used for?
It is a 2-channel high-precision RTD input terminal for the Beckhoff K-Bus Bus Terminal system, used to measure temperature with PT100/PT1000 sensors with improved accuracy.

Q2: What is the difference between KL3202 and KL3222?
Both are 2-channel RTD input terminals for the K-Bus system; the KL3222 provides higher measurement precision than the standard KL3202. Confirm the exact accuracy specifications in the current datasheet.

Q3: Which sensor types are supported?
PT100 and PT1000 are typically supported. Confirm the exact supported sensor types in the current datasheet.

Q4: Does it support 3-wire and 4-wire connection?
2-, 3-, and 4-wire connection are typically supported; 3- and 4-wire modes compensate for line resistance. Confirm the exact supported modes in the current datasheet.

Q5: What resolution and accuracy does it provide?
Typically 0.1 °C or finer resolution with high precision. Verify the exact resolution and accuracy class in the current datasheet.