Gravity: CT1780 1-Wire K-Type Thermocouple Amplifier (-270? to +1372? Temp Range)

SKU: SEN0656 Brand: DFRobot

Accurately measure extreme temperatures (-270? to 1372?) with the Gravity CT1780 1-Wire K-Type Thermocouple Amplifier. Ideal for ovens, kilns, and furnaces...

$35.50 AUD, inc GST

$32.27 AUD, exc GST

Available with a lead time
Expect dispatch between Nov 27 and Dec 01

The Gravity CT1780 is a cold-junction compensated thermocouple amplifier that makes monitoring extreme temperatures from -270? to +1372? straightforward and scalable. It accurately digitizes signals from a K-Type thermocouple, providing 0.25? resolution, and transmits the data over a simple 1-Wire communication bus. This 1-Wire protocol allows multiple sensors to be daisy-chained on a single data line, perfect for monitoring various zones in industrial ovens, ceramic kilns, or scientific flame analysis. An integrated DIP switch further simplifies identifying individual sensors in a multi-point network, making complex setups manageable.

Wiring Diagram of CT1780 amplifier & Arduino

Figure: Wiring Diagram of CT1780 amplifier & Arduino

Simplified Multi-Point Sensing with 1-Wire Protocol

Similar to the widely adopted DS18B20, the CT1780 amplifier utilizes the 1-Wire communication interface. This design drastically simplifies system wiring, requiring only a single data line to connect multiple sensors to a host controller. This architecture is ideal for projects that demand temperature monitoring across several distributed points over a wide area, as it conserves microcontroller I/O pins and reduces wiring complexity.

Effortless Sensor Identification with Onboard DIP Switch

A common challenge in multi-sensor arrays is identifying which physical sensor corresponds to a specific data reading. The CT1780 solves this by integrating an onboard DIP switch. In addition to the unique 64-bit address inherent to the 1-Wire protocol, this switch allows for the setting of a simple, user-defined address. When multiple CT1780 units are connected in parallel, this feature enables straightforward visual identification of the sensor currently providing the temperature reading, streamlining setup and debugging processes.

Ultra-Wide Measurement Range for Extreme Environments

Engineered for demanding thermal applications, the amplifier supports the full K-Type thermocouple measurement range from -270? to +1372?. The onboard cold-junction compensation ensures high accuracy across this spectrum, achieving a measurement error of =±2? within the critical -200? to 700? range. With a 14-bit resolution (0.25?), the module provides the precision needed for process control and monitoring in extreme temperature environments.

Specification

Input Voltage: 3.3~5.5V DC

Thermocouple Type: K Type

Measurement Range: -270?~+1372?

Operating temperature range of the amplifier board: -40?~+125??

Temperature measurement resolution: 14 bit/0.25?

Temperature measurement error: =±2?(-200?~700?), ±4?(700?~1350?)

Communication Interface: Gravity Single Bus

Amplifier board size: 44*22mm

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