Product description:
1: Do semi-automatic testing, manual loading, and automatic switching between test items; automatic
Judging the test results, the test output needs to be automatically counted and the yield rate is displayed, one product is tested each time.
2: The test output and input need to be optimized for the copper column pressing contact test.
| Test items: |
|
| output test |
1. Connect D+ and D- to the voltmeter, and the microphone head is triggered to work when the
airflow rate is 14ml/s, and observe the voltage change on D+ |
| Microphone detection |
2. The voltage on D+ will vary between 2.45-2.65V |
| Suction resistance test |
1. Connect to the nebulizer (copying), the airflow rate is 14ml/s, and the suction resistance is tested. |
| 2. The suction resistance of 0.8-1.1Kpa is acceptable |
| Protection test |
1. Add a load of 0.2Ω to both ends of D+ and D-, blow air to the microphone head to observe the status
indication of the light |
| Overcurrent Short Circuit Test |
2. When blowing on the microphone, the red led flashes 3 times. |
| |
range |
precision |
| flow |
30ml/sec |
±0.1ml/sec |
| True RMS Voltage |
10V |
±0.01V |
| resistance |
1/0.2Ω |
±2% |
| resistance to suction |
5000Pa |
±6Pa |
The Introduction Of Hongjin
Hongjin products are widely used in paper products, packaging, ink printing, tape, luggage, footwear, leather products, environment, toys, baby products, hardware, electronic products, plastic products, rubber products and other industries, suitable for all scientific research units, Quality inspection agencies and academic fields. Products comply with UL, ASTM, JIS, GB, SO, TAPPI, EN, DIN, BS and other domestic and foreign standards. We have CE certificates, ISO certificates, and are a high-tech enterprise with more than ten years of experience.
Hongjin's services:
If you encounter any problems during future testing, we promise we will reply you within 48 hours and provide a solution within 3 working days. We can provide operation video and English operation manual. We can provide video conferencing.
1. Pre-sales service
--24-hour online service for your consultation.
-- Help with choosing the right model, and a range of services, people, advice.
--Provide laboratory planning and pre-sales technical guidance.
2. Intermediate service
-- give you the best offer
--Provide discounts on multiple sets of orders
-- Do the customer's request:
--Choose a payment term that is convenient for you.
--Prompt production and delivery, keep you informed.
-- Invoice value can be provided according to your needs to reduce tax.
3. After-sale service
--1 year warranty service and lifetime maintenance.
--Technical engineers can provide 24-hour after-sales guidance.
--Replacement of some parts
--Remote control technical consultation
--Machine lifetime maintenance service
4. Commitment:
We will sign a letter of commitment at the same time as signing the contract, which will increase your confidence in us.
5. Good packaging:
Simulation animation customers cover with bubble film before putting them into wooden boxes, which not only has good shock absorption, impact resistance, heat sealing, but also has the advantages of non-toxic, odorless, moisture-proof and corrosion-proof, and good transparency.
Audited Supplier 
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