1. introduction
WH-PP-62 constant pressure pump is an 8-channel pressure control system developed by Wenhao Co., Ltd. The system consists of 6-channel positive pressure control switches and 2-channel negative pressure control switches. The system has the advantages of high precision, stable performance, strong anti-interference ability, and optional multi-pressure range. It is widely used in the field of long-term controllable gas and liquid transportation. The utility model is suitable for microfluidic chip injection, chemical reaction injection and long-time drug injection, etc. . The instrument is equipped with a large touch screen, making the operation more accessible and more convenient.
The WH-PMPP-62 constant pressure pump is mainly used to control the gas pressure through the pressure regulating valve. It can control the gas pressure of 8 channels independently.
1.1 constant pressure pump parameters
Dimensions: 540 × 450 × 230 mm;
Display: 7-inch touch screen;
Channel number: 6 positive pressure channels + 2 negative pressure channels;
Channel Control Points: 8;
Control mode: the opening and closing time of each channel can be controlled separately;
Number of cycles: 0 ~ 65535;
Duration Range: 0.0 ~ 6553.5 s;
Input gas pressure: ≤7 bar
Positive pressure range: 10 kpa ~ 0.4 mpa (standard) , 0 ~ 70 kpa, 0 ~ 13 kpa;
Negative pressure range:-100KPA ~-1kpa;
Positive pressure accuracy: three groups of the positive pressure range corresponding to 1 kpa, 0.3 kpa, 0.1 kpa;
Negative pressure accuracy: 1 kpa;
Independent pressure control for each channel;
Button life: about one million times;
Power supply: ac220v50hz;
Temperature range: 5 ~ 50 °C;
Humidity range: 20 ~ 80% ;
Weight: 23 kg.
1.2 graphical interface features
Real-time pressure and solenoid valve on-off state control and monitoring;
Multi-channel solenoid valve switch program control;
Multi-channel solenoid step-by-step program control;
The functional program can be edited by itself.
2. Feature diagrams
Note: If the air pressure needs to be greater than 0.4 mpa, make sure the main input air pressure is large enough (less than 0.7 mpa) , adjust the pressure filter to increase the input air pressure; in general, the pressure filter set to 0.4 mpa;
3. packing list
| Item | number |
| Positive and negative pressure constant pressure pump
|
1 |
| Air Compressor
|
1 |
| Oil-free vacuum pump | 1 |
| Power Cord
|
1 |
| Ø4Air outlet pipe
|
10 |
| Ø6Air inlet pipe | 3 |
| Quality inspection report
|
1 |
| Certificate of Conformity | 1 |
| Warranty card | 1 |
| Instruction manual | 1 |
4.optional accessory
| Sampling bottle holder（2ml，5ml，20ml，60ml） |
| Sampling bottle（2ml，5ml，20ml，60ml） |
| Sampling pipeØ0.9，Ø1.6，Ø4（PTFE） |
5.Pressure test data
| Positive pressure channel | 第1通道 | 第2通道 | ||||||||||||||||
| Pressure set（KPa） | 10 | 20 | 30 | 50 | 70 | 100 | 200 | 300 | 400 | 10 | 20 | 30 | 50 | 70 | 100 | 200 | 300 | 400 |
| Pressure value（KPa） | 10~11 | 20~21 | 30~31 | 50~51 | 70~71 | 100~101 | 200~201 | 300~301 | 400~401 | 10~11 | 20~21 | 30~31 | 50~51 | 70~71 | 100~101 | 200~201 | 300~301 | 400~401 |
| Result | The pressure range is 10 kpa ~ 0.4 mpa, the accuracy is within ± 1 kpa.
压力范围为10Kpa~0.4Mpa；精度在±1Kpa范围内。 |
|||||||||||||||||
| Positive pressure channel | 第3通道 | 第4通道 | ||||||||||||||||
| Pressure set（KPa） | 0.3 | 0.5 | 1 | 3 | 5 | 10 | 30 | 50 | 70 | 0.3 | 0.5 | 1 | 3 | 5 | 10 | 30 | 50 | 70 |
| Pressure value（KPa） | 0.3~0.4 | 0.4~0.5 | 0.9~1.0 | 2.8~3.0 | 4.9~5.1 | 9.9~10.1 | 29.8~30.1 | 49.9~50.0 | 69.8~70.0 | 0.3~0.4 | 0.4~0.5 | 0.9~1.0 | 2.9~3.0 | 4.9~5.1 | 10.0~10.1 | 30.0~30.1 | 49.9~50.0 | 69.8~70.0 |
| Result | The pressure range is 0ー70 kpa, the precision is within ± 0.2 kpa.
压力范围为0~70Kpa；精度在±0.2Kpa内。 |
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| Positive pressure channel | 第5通道 | 第6通道 | ||||||||||||||||
| Pressure set（KPa） | 0.1 | 0.3 | 0.5 | 0.7 | 1 | 3 | 5 | 10 | 13 | 0.1 | 0.3 | 0.5 | 0.7 | 1 | 3 | 5 | 10 | 13 |
| Pressure value（KPa） | 0.1~0.2 | 0.2~0.3 | 0.4~0.5 | 0.6~0.7 | 1.0~1.1 | 3.0~3.1 | 5.0~5.1 | 9.9~10.0 | 12.9~13.0 | 0.1~0.2 | 0.2~0.3 | 0.5 | 0.7 | 1.0~1.1 | 3.0~3.1 | 5.0~5.1 | 10 | 12.9~13.0 |
| Result | The pressure range is 0 ~ 13 KPA and the accuracy is within ± 0.1 kpa压力范围为0~13Kpa；精度在±0.1Kpa内 | |||||||||||||||||
| Negative pressure channel | 负1通道 | 负2通道 | ||||||||||||||||
| Pressure set（KPa） | -85 | -50 | -30 | -10 | -7 | -5 | -3 | -1 | / | -85 | -50 | -30 | -10 | -7 | -5 | -3 | -1 | / |
| Pressure value（KPa） | -84.4 | -49.3 | -29.1 | -9.5 | -7 | -4.9 | -2.9 | -0.9 | / | -84.6 | -49.4 | -29.4 | -9.6 | -7.1 | -4.7 | -3.1 | -0.9 | / |
| Result | The vacuum range IS-85KPA ~-1KPA and the accuracy is within ± 1Kpa使用小型无油真空泵，真空范围为-85Kpa~-1Kpa；精度在±1Kpa内 | |||||||||||||||||