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Grove - I2C Thermocouple Amplifier 熱電偶放大器 (MCP9600) (101020594)

Description 

The Grove - I2C Thermocouple Amplifier (MCP9600) is a thermocouple-to-digital converter with integrated cold-junction and I2C communication protocol. This module is designed to be used in conjunction with a k-type thermocouple. The thermocouples have a much larger measurement range than thermistors. For example, this k-type thermocouple on our website has a measurement range of -50℃ to +600℃.

We also provide the alert function for this module, you can use the progarammable alert pin to provide an interrupt signal to the controller.

Again, this module can't work alone, it must work with a k-type thermocouple, if you do not have one, you can consider Thermocouple Temperature Sensor K Type-1M in our bazaar.

Features

• Integrated Cold-Junction Compensation
• Supported Types (designated by NIST ITS-90): Type K, J, T, N, S, E, B and R
• Four Programmable Temperature Alert Outputs:
  • - Monitor Hot- or Cold-Junction
  • - temperatures
  • - Detect rising or falling temperatures
  • - Up to 255°C of Programmable Hysteresis
• Programmable Digital Filter for Temperature
• Low Power 

Applications 

• Petrochemical Thermal Management
• Hand-Held Measurement Equipment
• Industrial Equipment Thermal Management
• Ovens
• Industrial Engine Thermal Monitor
• Temperature Detection Racks 

Pin Out  

Alert Function

Assembly drawing

Schemaitc
Power

The operating voltage range of MCP9600 is 2.7V ~ 5.5V, we use a power conversion chip XC6206P332MR-G to provide a stable 3.3V for the MCP9600.

Input Jack

Because of the small signal levels involved, we take a lot measures to filter the noise.

• 1--L1,L2 We use thermocouple up to 1 meter long. Such long wires can be regarded as antennas, which will receive spatial electric field interference and generate high frequency noise. So we use two inductances to filter the high frequency noise.
• 2--C1 It is strongly recommended by the chip manufacturer to add a 100nF ceramic surfacemount differential capacitor, placed across the T+ and T- pins, in order to filter noise on the thermocouple lines.
• 3--D1 We use the SZNUP2105LT3G DUAL BIDIRECTIONAL VOLTAGE SUPPRESSOR to protect this module from ESD(Electro-Static discharge).

Bi-directional level shifter circuit

This is a typical Bi-directional level shifter circuit to connect two different voltage section of an I²C bus. The I²C bus of this sensor use 3.3V, if the I²C bus of the Arduino use 5V, this circuit will be needed. In the schematic above, Q1 and Q5are N-Channel MOSFET 2N7002A, which act as a bidirectional switch. In order to better understand this part, you can refer to the AN10441

Technical Details

Dimensions	20mm x 40mm x 18mm
Weight	G.W 11g
Battery	Exclude

Part List

Grove - I2C Thermocouple Amplifier (MCP9600)	1
Grove cable	1

ECCN/HTS

ECCN	Not Available

 

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