From the comparison of test data to analyze the advantages and disadvantages of the load curve instrument. Deep analysis of the difference between the key load curve meter Faces the information of many key switch load curve meters on the market, the price difference is several thousand or tens of thousands, the customer is sometimes at a loss. Below I will talk about how to identify the quality of the key switch load shift curve meter:
First of all, we have to choose the right manufacturer. This point in my previous article mentioned how the difference is between the manufacturer and the distributor. It is not mentioned here. Secondly, it is necessary to know whether the supplier group of this supplier is a big brand customer. Of course, it is necessary for customers to communicate with suppliers and on-site verification; then they can request to see the relevant certificates of their suppliers, such as patent certificates (after all, patent certificates are definitely the first to produce manufacturers with independent development capabilities); Look at the test machine prototype, whether the data acquisition cable is multi-pin (multi-pin represents high data sampling rate, accurate test, sensor can be well protected), sensor's foolproof protection, calibration requires a password.
The above content has been described in detail. Below I am talking about the technically strong data. For the people in the industry, the quality of the machine can be well identified:
The quality of a test machine may not be felt when testing a general product. Just like when the car goes on a flat road, the good car and the poor car are all open, and the performance of the car in the face of uneven roads can be reflected. The most important data parameter of the button switch is the hand value, and the hand value is calculated from the peak value of the product and the value of the valley point. Some tact switches, pots, and micro-switches have fewer valley points. The waveforms show that the valley points are sharp. This different machine test, the hand value has a few percentage points difference. As everyone knows, a tester with a high sampling rate can capture smaller valley data. According to the calculation formula (peak minus the valley value and then divide by the peak value), the hand value is large.
This picture shows the same product and test conditions, but the measured hand value is 3% difference. That is, some test machines have low sampling, and the valley points are high, resulting in a small hand value.
The test data of domestic millimeter instruments can be compared with Japanese machines and successfully exported to South Korea, Japan and Europe and America.
Therefore, it is recommended that customers pay more attention to observation when purchasing, and understand the intrinsic quality and performance of the testing machine! ! !
Http://news.chinawj.com.cn
Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
ATEX Approved Coriolis Mass Flow Meter
Sealand is a trustworthy manufacturer of Mass Flow Meter Coriolis, Mass Flowmeter Coriolis, Flow Meter Coriolis and Meter Coriolis, ATEX, CE & IECEx approved.
The flow meter model covers from DN03 to DN150, and bigger models are being developed. Main specification is as follows.
Model No.
Diameter
(mm)
Max. flow rate
(kg/min)
MWP.
(MPa)
Accuracy grade
(%)
Zero stability
(kg/h)
CG-03
03
6
4
0.1/ 0.2/ 0.5
0.012
CG-06
06
18
4
0.1/ 0.2/ 0.5
0.04
CG-15
15
50
25
0.1/ 0.2/ 0.5
0.12
CNG-20
20
120
25
0.1/ 0.2/ 0.5
0.36
CG-25
25
200
4
0.1/ 0.2/ 0.5
0.62
CG-40
40
500
4
0.1/ 0.2/ 0.5
1.60
CG-50
50
1000
4
0.1/ 0.2/ 0.5
2.38
CG-80
80
3000
4
0.1/ 0.2/ 0.5
7.05
CG-100
100
3600
4
0.1/ 0.2/ 0.5
12.00
CG-150
150
8000
4
0.1/ 0.2/ 0.5
50.00
Mass Flow Meter Coriolis, Mass Flowmeter Coriolis, Flow Meter Coriolis, Meter Coriolis
Zhejiang Sealand Technology Co., Ltd. , https://www.sealandflowmeters.com