1-channel Digital Indicators KN-2000W Series

Product Overview

The KN-2000W Series 1-channel digital indicators feature a versatile 3-color LED display, offering advanced processing capabilities for various input types such as thermocouples, RTDs, and analog signals. These indicators are designed to support a wide range of output options, and the display can automatically change colors in response to alarm outputs, ensuring clear and immediate status recognition.

Key Features

• High Accuracy: Utilizing a 16-bit ADC, these indicators achieve an accuracy of ±0.2% F.S., providing reliable and precise measurements.
• Wide Display Range: The display range extends from -19999 to 19999, accommodating a broad spectrum of measurement needs.
• Multi-Input Capability:
  • Compatible with 12 types of thermocouples.
  • Supports 5 types of RTDs.
  • Accepts analog inputs including two types of current and six types of voltage.
• Automatic Display Color Change: The LED display can automatically change colors to indicate errors or when alarms are triggered, enhancing visual clarity.
• Flexible Output Options:
  • Available alarm outputs include 2 or 4 points.
  • Isolated 4-20 mA transmission output and RS485 communication output are also supported.
• Advanced Functions:
  • High/low peak input monitoring.
  • Comprehensive alarm outputs for upper/lower limits and sensor breaks.
  • Configurable transmission output and display scaling.
  • Digital input (DI) functionality for added control.
• Built-In Power Supply: The unit includes a 24 VDC power supply, ideal for powering sensors and transmitters directly.

Communication Interface

The KN-2000W Series offers a robust RS485 communication interface, allowing integration into larger systems with ease.

• Protocol: Modbus 1.1 RTU.
• Max Connections: Supports up to 32 units.
• Synchronous Method: Asynchronous.
• Communication Method: Two-wire half-duplex.
• Effective Range: Up to 1,200 meters (700 meters recommended).
• Data Transmission Speeds: Configurable between 1,200 and 19,200 bps.

Input Types and Accuracy

These indicators support a wide range of input types, ensuring compatibility with various sensors and measurement devices:

• Thermocouples: Types K, J, E, T, R, B, S, N, C, L, U, and Platinel II.
• RTDs: Types Cu50Ω, Cu100Ω, JPt100Ω, DPt50Ω, and DPt100Ω.
• Analog Inputs: Current (0-20 mA, 4-20 mA) and Voltage (-50 mV to 10 V).

Display Accuracy

• At Room Temperature: ±0.2% F.S. ±1 digit.
• Below -100 ℃: ±0.4% F.S. ±1 digit.
• Out of Room Temperature Range: ±0.3% F.S. ±1 digit.

Unit Description

The KN-2000W Series indicators are designed with user-friendly controls and a clear display for optimal usability:

• Display Part: Shows the present value (PV) in run mode and parameters in setting mode.
• Unit Indicator: Displays the selected measurement unit.
• Alarm Output Indicator: Lights up when an alarm is active.
• Mode Key: Used for entering parameter setting mode, navigating through settings, saving values, and returning to run mode.
• Navigation Keys: Enable easy adjustment of parameter settings.
• Input Specification Switch: Allows selection between DC 0(4) - 20 mA, -1 - 10 VDC, RTD, Thermocouple, and other inputs.

Dimensions

The compact design of the KN-2000W Series makes it suitable for various installation environments:

• Unit Dimensions: Width: 48 mm, Height: 96 mm, Depth: 90 mm.
• Panel Cut-out: 46 mm by 92 mm.

Ordering Information

The KN-2000W Series can be customized to meet specific application requirements:

• Alarm Output: Options include no output, 2 points, or 4 points.
• Option Output: Available with no output, PV transmission, communication, or both.
• Power Supply: Choose between 100-240 VAC or 24 VDC models.

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