KL3204

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The KL3204 analog input module features four inputs, a conversion time of approximately 250 ms, and supports sensor types such as Pt100 and Ni1000. Part of the KL Analog Input Modules series by Beckhoff, it operates within a temperature range of -25 to +60°C and has an IP20 protection rating for reliable performance.

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Product Description:

The Beckhoff KL3204 Analog Input Module with its four distinct inputs allows for the monitoring of several sensors.

The K-bus facilitates simple EtherCAT system integration while serving as the terminal's power supply. The KL3204 enables users to connect Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni1000, as well as potentiometer sensors, which can have resistances between 10 Ω and 1.2/5 kΩ. Temperature sensors using the Pt element operate between -200°C and +850°C, while Ni sensors work between -60°C and +250°C to serve different industrial temperature applications. Engineers can easily install and use the terminal because it operates through a simple 2-wire connection system, which supports common temperature sensor standards. Quick updates become possible during continuous temperature monitoring thanks to a conversion time of 250 ms. The device runs its measuring current at 0.5 mA to reduce power usage without compromising measurement accuracy. The KL3204 delivers precise temperature data at a resolution of 0.1°C per digit because this challenges applications that need exact temperature readings. The measurement error remains minimal since the device shows an uncertainty of less than ±1°C, which creates a reliable data collection in different industrial environments.

The K-bus power consumption reaches 60 mA at present and maintains a power-efficient continuous operation mode. The process image in the device includes four 16-bit data sections alongside optional four 8-bit control/status data sections that streamline integration into control systems. Built for industrial situations, the KL3204 functions between -25°C to +60°C while meeting the IP20 protection class for placement in indoor control panels. The module arrives from the factory with accuracy and stability calibration for delivering precise operation straight from installation. The device meets EN 61000-6-2/EN 61000-6-4 alongside EMC immunity and emission standards, so it stays reliable under electrically complex situations.

Calibration type
Factory calibrated
Connection method
2-wire
Conversion time
~250 ms
EMC compliance
EN 61000-6-2/EN 61000-6-4
K-bus current consumption
typ. 60 mA
Measurement uncertainty
< ±1°C
Measuring current
typ. 0.5 mA
Ni sensor range
-60…+250°C
Number of inputs
4
Operating temperature
-25…+60°C
Power supply
via K-bus
Process image control/status width
4 × 8 bit (optional)
Process image data width
4 × 16 bit
Protection rating
IP20
Pt sensor range
-200…+850°C
Resistive input range
10 Ω…1.2 kΩ / 5 kΩ
Resolution
0.1°C
Supported Ni sensors
Ni100/120/1000
Supported Pt sensors
Pt100/200/500/1000

Frequently Asked Questions about KL3204:

Q: What types of sensors can be connected to the KL3204?

A: The KL3204 supports Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni1000 temperature sensors, and potentiometers with resistance from 10 Ω to 1.2/5 kΩ.

Q: What is the measurement range for Pt and Ni sensors on the KL3204?

A: Pt sensors can measure between -200°C and +850°C, while Ni sensors operate between -60°C and +250°C, making the module suitable for a wide range of industrial temperature needs.

Q: How accurate is the KL3204 temperature measurement?

A: It provides a resolution of 0.1°C per digit with a measurement uncertainty of less than ±1°C, ensuring highly accurate data for critical applications.

Q: Is the KL3204 energy-efficient?

A: Yes, the KL3204 operates at a low measuring current of 0.5 mA and consumes just 60 mA from the K-bus, promoting energy-efficient operation.

Q: Can the KL3204 be used in harsh environments?

A: The module is compliant with EN 61000-6-2/EN 61000-6-4 EMC standards and functions reliably in environments from -25°C to +60°C.


Internal Product Review

  • ‘‘The KL3204 from Beckhoff stands out for its accuracy, versatility, and efficient performance in temperature and resistance monitoring. Its multi-sensor compatibility and compact integration make it a valuable choice for industrial automation systems.’’

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