Surface Resistance Tester
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Introduction：
It is simply operated. The user just need place tester on the surface of tested items, and directly read the figure indicated via LED lights. The testing method follows the ASTM D-257.
Specification:
Size | 137(L)*76(W)*30(D)mm |
Weight | 120g |
Accuracy | ±1/2 decade |
Repeatability | ±5% |
Testing Voltage | 9V |
Working Temperature | 0℃-50℃ |
Working RH | 0%-90% |
- Q: How do you measure the resistance with a digital universal meter K
- The first is to measure the resistance directly. First of all, the traditional digital multimeter. Hit the instrument pointer to the ohm ohm, which is the gear used to measure the resistance.The starting position of the readings of current and voltage is 0 on the left, and the starting position of the resistor is 0. On the right, find the reading line of the resistance, and then read it from here.
- Q: What is the difference between the insulation resistance tester and the ground resistance tester, what's the general use of the three?,
- The two traditional testers are similar in shape, with a rocking handle and a pointer display window
- Q: What is the role of the temperature compensator in the resistance strain measurement? What's the requirement for it?
- Temperature compensation is the measure to eliminate the influence of temperature. In the strain measurement at normal temperature, the bridge compensation method is adopted for the temperature compensation. It uses bridge characteristics to compensate temperature.
- Q: With single chip microcomputer and photosensitive resistance to achieve light intensity test, there is no voltage to light intensity conversion formula. I hope you can help me
- The corresponding relation is obtained according to the light intensity resistance diagram, that is to say, the general photosensitive resistor can not be precisely divided, but the imported Cds photosensitive resistors are all equipped with chip data
- Q: Why is insulation resistance measured by a shake meter instead of a multimeter?
- Multimeter test voltage of less than 10V, far from simulating the real situation.
- Q: The principle of measuring resistance with a multimeter
- And its fixed resistance. The current is calculated when our test resistance is equal to zero. So we come up with a formula: I = U/ (Rg+R, +R, U, +R)
- Q: Why is the resistance value on the circuit board different from that measured by the universal meter?
- The circuit board and the circuit diagram is one-to-one, the corresponding physical components on PCB symbols in circuit diagram, circuit board copper wire corresponding to the circuit diagram of the connection pad is a component and connection connection point. Circuit board and circuit diagram of the corresponding, you can clearly understand the composition of the circuit and device appearance, location and other characteristics, but also the maintenance and PCB design basis. I don't know how to explain your question. I hope it will help.
- Q: Thermocouple temperature measurement, measured value and actual value compared to a great deviation, what is the reason?
- Basic error of thermocouple:The error is inherent in the thermocouple itself and includes the standard deviation of the upper pole. Solution: the method of verification and verification can be used to control the allowable deviation range, and the correct deviation of thermocouple can be corrected in actual temperature measurement.
- Q: What is the significance of measuring DC resistance?
- Measuring DC resistance is an important item in transformer test. By measuring, it is possible to check the electrical conduction loop of the equipment, such as bad contact, bad welding, coil fault and wiring fault.
- Q: What happens when the circuit fails?
- Because the general current over the high voltage measurement of voltage, especially for a long time, it is extremely easy to expand the fault, and even cause irreparable losses.
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Surface Resistance Tester
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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