Semight-SUPPORT-After-sale Service-Semight Instruments

After-sales

Committed to providing you with better support!
We make the following commitments to after-sales service:
1. Warranty period: During the warranty period, the supplier will repair and replace the parts damaged due to quality reasons for free. If the parts are damaged outside the warranty period, only the cost will be charged for the accessories, and the equipment caused by human factors of the buyer Damaged, the supplier repairs or brings the accessories at cost price. During the quality assurance period, we are obliged to provide technical services and support for all equipment failures caused by non-human factors (except war, disaster, and human force majeure).
2. Service commitment outside the warranty period: After the quality guarantee period, we will also provide free voice and video services, remote debugging services, free software upgrade services, and promise to bring product on-site maintenance services.
3. Response time and response method: During the warranty period, if the equipment fails, we need to go to the site for support after receiving the repair report from the user. Arrive at the customer's maintenance site within 8 hours locally, and arrive at the customer's maintenance site within 24 hours from other provinces and cities and overhaul in place. During the warranty period, if the equipment cannot be used normally due to repeated inspections of equipment performance failures, we will replace the new equipment free of charge. After the warranty period is exceeded, if the product fails, we can send a technical support engineer to provide free on-site service. If you need to replace the accessories, the accessories will be provided at the best price in the market. We have resident technical support engineers in many places in China, who can respond to the relevant needs of the tenderer in a timely manner.
4. Service working hours: For all products supplied, we insist on 24 working hours a day, 7 days a week, 24 hours a day.
5. Regular return visits: We insist on regular return visits every year for all the products we supply, patrol inspection and maintenance to prolong the life of the equipment.

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Q&A

Product category

Retrieval

？Q The dark current of the same material measured by two different source meters is greatly different

A

Modify the measuring range. Since the dark current value is small, it is necessary to select the current gear and select 10uA for measurement
？Q Why is there no curve in the IV curve in the scanning mode as shown in the figure below?

A

The scanning mode cannot use the automatic range, and the voltage range and current range need to be set to the fixed mode; If the customer needs to scan from - 1V to 1V, 1V can be selected for the fixed range
？Q Can the refresh rate of the source table be increased?

A

No, the firmware is limited internally and the refresh rate cannot be improved
？Q How does the source meter measure resistance?

A

Main interface advanced option - resistance option - select resistance mode enable;
In addition, current source mode should be selected for resistance measurement, and matching range should be selected, as shown in the following figure: when measuring 1 ohm resistance, the range defaults to 1a when testing current
？Q What should be paid attention to when measuring small resistance values? If the inductance is measured, the resistance of the measured inductance is 0.02 ohm.

A

When measuring small resistance, it is necessary to select the four wire mode, because the connection resistance may be greater than 0.02 ohm for two-wire mode measurement. Four wire measurement method: A. sense and rorce are connected in parallel, black end is connected in parallel, B. select four wire mode, advanced misc - set 4wire
？Q What is the concept of clamping current? If not set, what will be the impact on the test?

A

When in voltage source mode, clamping current can be set
When the voltage source outputs, the current value will not exceed the clamping current. When the current value reaches the clamping current, the voltage will not rise
If not set, there will be a default value
？Q What is the concept of protection voltage (OVP)?

A

The output of voltage source shall not exceed the set value of OVP. The default value of OVP is 24V and the maximum value can be set to 72V
？Q What is the concept of clamp voltage? If not set, what will be the impact on the test?

A

When in current source mode, clamping voltage can be set
When the current source outputs, the voltage value will not exceed the clamping voltage. When the voltage value reaches the clamping voltage, the current will not rise
If not set, there will be a default value
？Q What is the concept of NPLC? If not set, what will be the impact on the test?

A

NPLC is the cycle multiple of the sampling power supply, 1nplc = 20ms
If it is not set, there will be a default value. If the setting value is abnormal, the reading will be incorrect

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