2.1.4. tolerance Tolerance Resistance The resistance tolerance for an NTC thermistor is specified for one temperature point, which is application specific and the standard value is usually 25°C. It is also possible to specify at the other temperatures upon customer request.
Temperature tolerance By means of Formula 3, the temperature tolerance can be calculated for small temperature interval as following formula: ΔT = 1 / α ・ ΔR / R (Formula 6) For practical application, we recommend that the standardized R / T table be used.
Step 1.SHIFT - 8 눌러서 END TEST VOLT=0.000000V 가 뜨도록 함
초기상태에서
SHIFT 버튼을 누르면 우측에 Shift라고 뜨고
8을 누르면 OFF 라고 바뀌면서 하단에 END TEST VOLT가 뜬다.
Step 2. 숫자와 .을 이용하여 원하는 전압을 입력함
9.6V 완전방전을 목표로 할거라 9.6을 입력함
Step 3. Enter를 누름(0.00W 0.00000AH 라고 아래 라인에 뜸
가장 처음 화면으로 돌아온다.
Step 4. On/Off 버튼을 눌러 시작 상단 우측에 BATT 라고 뜨면 배터리 테스트 모드
on/off 버튼을 누르면 BATT로 바뀐다.
Battery Life StabilityTest In Constant Current mode the Serial electronic load can test battery life stability Set up the load to control voltage level. When the voltage of the battery is too low, the serial electronic load will identify the battery being on the threshold value set or at the margin of an insecure state and will stop testing automatically. When the load is in test mode, you can see the battery's voltage, battery discharge current, electronic, load power and battery capability that remains. If the load is connected through PC software, then you can see the battery discharge curve.. This test can measure the reliability and remaining life of the battery. So it is important to perform the test before the battery is re-charged, or swapped out for a newer battery. Operation: 1） In standard constant current mode, adjust the load's current value to the same discharge current value of battery needed. 2） Press both Shift+8(Battery)keys. When VFD display shows END TEST VOLT= xxxxxxxxV， input the shut-off voltage and press Enter to start the battery life stability test. When the battery's voltage drops to the turn-off voltage set, the load will automatically shut off. 3） Press the On/Off keys to start or pause the battery capability test. 4) Press both the Shift+8(Battery) keys to exit the battery life stability test mode.
cpol과 cpha가 2가지 씩 이니 총 4가지 방식이 존재하고, 그걸 설정해서 통신하면 된다.
Most microcontroller SPI peripherals can operate with the ADS1118. The interface operates in SPI mode 1 where CPOL = 0 and CPHA = 1. In SPI mode 1,SCLK idles low and data are launched or changed only on SCLK rising edges; data are latched or read by the master and slave on SCLK falling edges. Details of the SPI communication protocol employed by the ADS1118 can be found in the Timing Requirements: Serial Interface section.
A bipolar junction transistor (BJT) is a type of transistor that uses both electrons and electron holes as charge carriers. In contrast, aunipolar transistor, such as a field-effect transistor (FET), uses only one kind of charge carrier.
