【Weekly 3 Questions, Question 48】November 28, 2017
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bg9.png The question for this issue is as follows: (Fill-in-the-blank) The common functions of a circuit tester generally include: outputting mA signals, ( ), ( ) etc. The answers for this issue will be announced on November 30, 2017.———————————————————————————————————————————————————————Answers to the previous issue (multiple-choice question): The microwave propagation in radar level gauges is not affected by ( ) factors. A. Medium temperature B. Medium pressure C. Medium density D. Medium pH value Answer: ABCD Hidden content in this post ———————————————————————————————————————————————————————Scoring criteria: 2 Wealth points for incorrect answers; 3–8 points for *incomplete* correct answers; 10 Wealth points for correct answers accompanied by detailed explanations; 12–15 Wealth points for correct answers with additional *complementary* information. Please score according to these criteria. Note: If there are editing records after answering, only 1 point in wealth will be given to the participant. The time limit for answering is before the next question; 2 points are awarded if the answer is correct within two periods after the deadline, while no points are given if the answer is incorrect or if more than two periods pass. Each instance of continuous malicious spamming results in a deduction of 2 wealth points, with no upper limit; only numbers and emojis are allowed. Any random letters entered, unrelated to the answer, are considered malicious spamming. Points will start to be deducted after three warnings
Voltage, thermocouple Mv, thermal resistor ohms
I don’t know. . . I searched on Baidu but couldn’t find any information. 1. During measurement, the instrument allows selection between minimum/maximum/average/hold/relative measurement modes. 2. It can provide a +24V loop power supply to the transmitter while measuring current. 3. The instrument can supply current to transmitters and other devices, or it can simulate the current output of a transmitter. 4. There are four selectable slope step rates, enabling testing of the transmitter’s response time when one hand is free. 5. Four current output ranges are available, with an accuracy of 0.05% and a resolution of 1μA; the percentage range is also displayed simultaneously. 6. Special millivolt measurement and millivolt output functions are provided for testing and calibrating thermocouples. 7. It features an LCD display with a backlight, capable of showing up to 40,000 characters, making it suitable for use in any lighting conditions. 8. It has a built-in rechargeable nickel-metal hydride battery pack with sufficient capacity, which can be replaced externally.
DC voltage and Hart output