KL3172

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The Beckhoff KL3172, part of the KL Analog Input Modules series, features 2 input channels with a signal voltage range of 0 to 2 V. It offers 16-bit resolution, a configurable conversion time of 140ms, and a filter for 50 Hz. Operating between 0 and 55 °C, it provides IP20 protection.

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Product Description:

The KL3172 is a dual-channel analog input Bus Terminal. It belongs to the KL Analog Input Modules product family. It is engineered for high-precision voltage measurements within the range of 0 to 2 V. It includes a 16-bit resolution.

The KL3172 is manufactured by Beckhoff. It handles differential input signals. It provides electrical isolation with a 500 V separation. This Module transforms analog voltage to digital values in 140 milliseconds. The readings stay within a ±0.05% measurement error range of their total scale value. This analog input has a common-mode voltage tolerance of up to 10 volts. It has an adjustable 50 Hz filter to reduce external interference. The Beckhoff module runs efficiently between 0°C and 55°C. The device operates well within temperatures spanning from -25°C to +85°C during storage. The device can work under 95% relative humidity without forming condensation. To ensure signal stability each KL3172 input channel has the same internal ground potential. It meets vibration and shock requirements of EN 60068-2-6 and EN 60068-2-27 standards. Its installation makes use of a 35 mm DIN rail with locking support. Its measurements are compact: 12 mm width, 100 mm height, and 68 mm depth. It has an internal resistance larger than 70 kΩ to reduce current draw.

The Beckhoff ‘s KL3172has a typical K-bus current usage of 85 mA. The IP20 rating allows for varied installation placements. It improves measurement accuracy for key automated activities. It has pluggable wiring. The product connects with KSxxxx bus terminals from any manufacturer. Users of KL3172 have three conductor types to select from: solid, stranded, and ferrule wire connections. Wire types such as solid and stranded come with cross-sectional sizes starting from 0.08 mm² up to 2.5 mm². Beckhoff verifies KL3172 accepts CE, CCC, UL, ATEX, and IECEx certifications.

Common-mode Voltage
Max. 10 V
Conversion Time
140 ms, configurable
Current Consumption K-bus
Typ. 85 mA
Filter
50 Hz, configurable
Filter
50 Hz
Internal Resistance
> 70 kΩ
Measurement Error/uncertainty
< ±0.05% (relative to full scale value)
Number Of Inputs
2
Operating Temperature
0…55 °C
Power Supply
Via the K-bus
Protection Rating
IP20
Resolution
16-bit
Resolution
16 bit
Signal Voltage
0…2 V
Storage Temperature
-25…+85 °C

Frequently Asked Questions about KL3172:

Q: How does the KL3172 benefit from using a differential input technology?

A: Differential input in KL3172 reduces noise and external interference during signal acquisition. This ensures more accurate and reliable voltage measurements in industrial environments.

Q: Why is a configurable 50 Hz filter important in the KL3172?

A: The 50 Hz filter in KL3172 minimizes electrical noise from power lines. This results in cleaner and more stable analog signal processing.

Q: What advantage does the KL3172’s high internal resistance (>70 kΩ) provide?

A: The high internal resistance of KL3172 minimizes the loading effect on connected sensors. This preserves the integrity of low-level input signals.

Q: How does a maximum 10 V common-mode voltage improve KL3172 performance?

A: KL3172 can tolerate higher ground differences between channels without signal distortion. This feature enhances operational flexibility across different installation conditions.

Q: What is the role of the pluggable wiring feature in the KL3172?

A: KL3172 offers pluggable wiring for faster installation and easier maintenance. This reduces downtime during wiring modifications or terminal replacement.


Internal Product Review

  • ‘‘The Beckhoff KL3172 offers high-precision analog input with a 16-bit resolution and 0–2 V signal range. Its ±0.05% measurement accuracy and 500 V isolation ensure stability in critical systems. KL3172 supports environments from 0°C to 55°C, making it ideal for diverse industrial applications.’’

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