Analog input module KL3204

4 analog inputs2 analog inputsfor thermocouples

Product overview
The KL3204 analog input terminal accepts resistance temperature detectors and potentiometers connected directly. The Bus Terminal circuitry provides sensor excitation and supports 2-wire sensor connections. An onboard microprocessor performs linearization across the full temperature range and allows freely selectable measurement ranges. Standard PT100 settings provide a temperature resolution of 0.1 °C. Error LEDs indicate sensor faults such as open circuits. The KL3204 integrates four channels in a single housing.

Features

• Supports RTDs (PT100, PT1000) and potentiometer inputs
• Operates with 2-wire sensor connections (Bus Terminal supplies excitation)
• Microprocessor-based linearization over full temperature range
• Selectable temperature measurement range
• Error LEDs for sensor fault detection (e.g. open circuit)
• Four channels combined in a single housing
• Standard PT100 temperature resolution: 0.1 °C

Variations

• 2 analog inputs 0-10 V DC, 12 bits
• 4 analog inputs 0-20 mA, 12 bits
• 4 analog inputs PT100/PT1000/Potentiometer, 16 bits (KL3204)
• 4 analog inputs Thermocouple K, 16 bits

Documentation
Technical documentation available in English for the 4 analog inputs (PT100/PT1000/Potentiometer) variant.

Technical specifications

• Model: KL3204
• Channels: 4
• Supported sensors: PT100, PT1000, potentiometer (other versions: 0-10 V, 0-20 mA, Thermocouple K)
• Resolution: 12 or 16 bits depending on variant; PT100/PT1000/potentiometer version: 16 bits
• Temperature resolution example: 0.1 °C (standard PT100 setting)
• Connection technique: 2-wire supported; Bus Terminal supplies excitation
• Linearization: microprocessor-based across full temperature range
• Fault indication: error LEDs for sensor faults (e.g. broken wire)
• Housing: four channels combined in a single DIN-rail Bus Terminal housing