사용이 아주 편리하면서, 가격도 아주 저렴한 제품입니다.
-40 °C에서 100 °C 까지 사용가능한 제품이며 LabJack 용으로 설계되었고, 전압을 읽는 형태의 DAQ 에는 모두 사용가능합니다.
저희 이지댁에서는 아래와 같은 제품( U3-HV, U6, UE9, U12) 과 사용이 편리합니다.
/goods/view?no=442 << U3-HV (보급형)
/goods/view?no=369 << U6 (고사양)
/goods/view?no=62 << UE9 (이더넷 인터페이스)
/goods/view?no=4 << U12 (사용하기 편한)
참조 http://www.designcircuit.com/ << 제조사
EI-1022 Temperature Probe -- Easy to use and inexpensive temperature probe from Electronic Innovations Corp. Designed to work with a LabJack, but can also be used with any voltage measuring device. Outputs 10 mV per degree C, and has a range of -40 to +100 degrees C. (위의 설명 참조)
Click for larger image.
Download the EI-1022 PDF datasheet << 데이타 시트
Electrical Connections (결선)
Three wires require connections; they are +5 volts (red), ground (black) and output (white). These wires can be connected to the appropriate terminals on a LabJack or other power supply in the case of using the sensor as a stand-alone unit. The output wire will normally output a voltage of approximately 3 volts at room temperature.
결선:
빨간선에 +5 volts
검정선에 ground 연결
흰색선에 신호단자를 연결
Formulas to Calculate Temperature From Measured Probe Voltage
(온도 구하는 수식)
°K = 100*volts
°C = 100*volts – 273.15
°F = ((100*volts)-273.15)*1.8 +32
(예: 27°C 의 경우, 절대 온도 K는 300도, 측정되는 전압은 300*10mV => 3000mv => 3V 가 됨)
(3V 일 경우, 절대 온도는 100 * 3 >> 300K >> 300K-273 >> 27 °C)
LabJack U12 Setup (U12에 사용시)
Once the temperature probe is connected to an AI channel on a U12, it may be desirable to use the LJlogger program to display temperature in degrees F or C. In order to make the LJlogger readout in degrees C, simply enter 100 for the multiplier and –273.15 for the offset in the appropriate row corresponding to the temperature sensor. In order to make the LJlogger readout in degrees F, enter 180 for the multiplier and –459.67 for the offset. The temperature will appear in the “scaled data” column.
제공해 드리는 LJlogger(프로그램)를 그대로 사용해서 온도 표기 및 기록 가능
(섭씨온도의 경우: multiplier 부분에 100을 넣고, offset 부분에 -273.15를 넣으시면 됩니다. 위읜 온도 구하는 수식 참조)
Specifications
Range: -40°C to 100°C (-40°F to 212°F)
Output: 10 mV per °K absolute
Sensor device in probe: LM335A
Cable length: 6 ft supplied 500 ft user extended (길이: 1.8미터, 150미터까지 연장 가능)
Probe dimensions: 4 in x 0.25 diameter
Power: +5 VDC at .001 Amp
Output Load: 50K or greater or 100 uA max
Accuracy:
+/- 1°C Typical Room Temperature
+/- 3°C Max Room Temperature
+/- 2°C Typical -40°C to 100°C
+/- 5°C Max -40°C to 100°C
Special Notice Regarding The EI-1022 Cable
Although the temperature sensor and associated electronics are rated for 100 degrees C, the cable is only rated for 80 degrees C. We have tested the cable, probe at 150 degrees C, and have noticed the cable gets soft at the high temperatures but continues to function. When the cable and probe were returned to normal temperatures, no degrading was observed in the cable or probe. Also at the low temperatures, the cable is only rated to -20 degrees C where the sensor and associated electronics are rated lower. Testing the probe with the wire at the lower temperatures showed normal operation and no degrading of the cable when returned to normal temperatures. The user should be aware that even though the probe itself can operate at the rated temperatures the use of the cable in environments of over 80 degrees C and lower than 20 degrees C is at your own risk.
센서를 150도 및 -203도에서 테스트 결과 문제는 없었으나, 케이블 온도가 80도가 넘거나, -20도 이하로 사용시 주의하시기 바랍니다.
