K Type thermocouple amplifier
Amplifier unit for K type thermo couples which outputs the voltage proportional to temperature.
Connects directly by 2 power-supply correspondence of DC5V or DC15V at the power supply of a data logger or vehicles.
Two outputs of the wideband which can output even Maximum 15V, and the narrowband to Maximum 5V.
High precision measurement from 5 to 1250 degree celsius.
Built in DC-DC power supply, and change of power supply voltage has tolerance.
- High precision amplifier for K type thermo couples.
- Equip the connector for K type thermo couple.
- Two kinds of power supplies, DC5V or DC7-20V, can be used. (one of exclusion use)
- Wide (10mV/degree-C 12.5V range) and Narrow (3.9mV/degree-C 5V range) outputs.
- Wide range and a narrow range can be used simultaneous for an independent system.
Example of output
Wide range | 0℃ 250℃ 500℃ 750℃ 1000℃ 1250℃ | 0V 2.5V 5.0V 7.5V 10.0V 12.5V |
| Narrow range 3.9mV/degree C White line | 0℃ 250℃ 500℃ 750℃ 1000℃ 1250℃ | 0V 0.975V 1.95V 2.925V 3.9V 4.875V |
Thermo couple amplifier characteristic KAP-K01
| Power suppry | +5V DC Absolute maximum rating 5.6V DC or +7V to +15.0V DC Absolute maximum rating 20.0V DC |
| Standby current | 60mA |
| Measurement temperature range | 5 degree C to 1250 degree C |
| Amplifier capability marginal measurement temperature range (NO guarantee) | 0 degree C to 1450 degree C (maximum) |
| Output 1 (wide output 12.5V range) | 10mV/degree C |
| Output 2 (narrow output 5V range) | 3.9mV/degree C |
| Output impedance | 200Ω ±0.5% |
| Calibration error | ±4degree C (maximum) |
| Temperature error | ±2% (maximum) |
| Linearity | 1% (Wide range output use) |
| Accuracy | ±2% (Wide range output use) |
| Stability | 0.05%/degree C (Wide range output use) |
| Operating temperature range | -35 to +80 degree C (maximum rating) |
| Wiring | Brown +7V to +15V (Red line is exclusion connection) Red +5V (Brown line is exclusion connection) Blue GND White Narrow 5V range yellow Wide 12.5V range Orange N/C Shield N/C |
| Size | Width 35mm x Length 50mm x Height 20mm (except for a connector) |
| Wiring length | 1m (with a shield) |
| Mass | 150g |
| Price (unit) | KAP-K01U |
| Price (module only) | Ask from ten sets. |
Below for 3 seconds from power supply voltage and more than rating to absolute maximum rating.
Narrow output may amount to maximum DC5.9V when it measures exceeding 1280 degrees C, be careful of input allowable voltage, such as a data logger.
The measurement temperature range and accuracy change with the characteristics and performances of a thermo couple.