Beijing Tonghe Testing Machine Co., ltd
| Supply Ability | 20 sets per month |
| Delivery Time | 7-15 working days |
| Packaging Details | Standard export wooden cases |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Product name | Surface Tension Meter |
| Measuring range | 0-199.9mN/m |
| Minimum resolution | 0.01mN/m |
| Radius of platinum circle | R9.55mm |
| Radius of platinum wire | r0.3mm |
| Brand | Jinhaihu |
| Display | LCD |
| Auto stop | Yes |
| Brand Name | JINHAIHU |
| Model Number | ZJYW |
| Certification | ISO9001 |
| Place of Origin | BEIJING, CHINA |
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Product Specification
| Supply Ability | 20 sets per month | Delivery Time | 7-15 working days |
| Packaging Details | Standard export wooden cases | Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Product name | Surface Tension Meter | Measuring range | 0-199.9mN/m |
| Minimum resolution | 0.01mN/m | Radius of platinum circle | R9.55mm |
| Radius of platinum wire | r0.3mm | Brand | Jinhaihu |
| Display | LCD | Auto stop | Yes |
| Brand Name | JINHAIHU | Model Number | ZJYW |
| Certification | ISO9001 | Place of Origin | BEIJING, CHINA |
| High Light | Automatically Surface Tension Meter ，Interface Surface Tension Meter ，Interfacial Tension Meter 220V | ||
Digital Surface Tension Meter/Automatically Interface Tensiometer
Structure and working principle:
The instrument's structure primarily comprises a torsion wire, sensor, platinum ring, and lifting component. During operation, the platinum ring is immersed in a specific position of the liquid under test. A motor, belt, and tray drive the glassware containing the liquid to descend, stretching the film between the platinum ring and the liquid. This stretching subjects the platinum ring to a downward force, causing the torsion wire to twist via a lever arm. The sensor measures the displacement at the lever arm's opposite end, converting the film's deformation into a voltage. After circuit processing, this voltage is transformed into the corresponding tension value, which is automatically displayed. As the film stretches gradually, the tension value increases until the film breaks. The maximum value is recorded as the measured tension value of the liquid. Multiplying by the liquid's correction factor yields the actual tension value , i.e., . The correction factor depends on the measured tension value , liquid density, platinum wire radius, and platinum ring radius.
For example:
After zero adjustment, place a 500mg weight on the paper. The displayed value should be 40.8±0.1. If not, adjust the potentiometer to reach this value before conducting liquid tension tests. Normally, no adjustment is needed if the tension value is within the allowable error range. Calibration is required when using the instrument for the first time, after long-term storage, or when significant test result errors are suspected.
Technical data:
Performance:
Standard:
JB/T9388 ISO/1409
Applicability:
Physical methods are employed to measure liquid tension. This type of tensiometer finds extensive use in scientific research institutions, universities, and water & power sectors.
Configuration:
| Name | Quantity |
| Main frame | 1 |
| Platinum Circle | 1 |
| beaker | 1 |
| hook | 1 |
| torsion wire | 1 |
| Calibration weight(500mg) | 1 |
Parameter:
| Model | ZL-E1 | ZL-E2 |
| Test method | Design platinum plate and platinum ring at the same time, can choose one of them, can also choose two at the same time | |
| Control mode | Manual lifting | |
| Display mode | LED digital tube display | |
| Measuring time | Platinum plate method ≤10s. Platinum ring method ≤50 s | |
| Sample size required | Platinum plate method ≥3mL; Platinum ring method ≥5mL | |
| Test range (mN/m) | 0-1000 | 0-1000 |
| Resolution ratio(mN/m) | 0.1 | 0.01 |
| Accuracy(mN/m) | 0.1 | 0.01 |
| Repeatability(mN/m) | 0.1 | 0.01 |
| Precision of Electronic balance | Domestic 1/1000 grams | Domestic 1/10000 grams |
| Weighing system type | Electromagnetic force balance | |
| Accuracy automatic calibration | Accuracy automatic calibration: provide weight correction, distilled water and ethanol coefficient correction, temperature correction | |
| Data acquisition software | Standard: the configuration software can operate, store, export Excel data and print by computer | |
| The micro printer interface | Optional | |
| Thermostatic temperature control interface | Optional: it can test the value of surface tension at a specific temperature | |
| Equipment weight and size | 20cm*35cm*35cm,7.5kg； | |
| Power | 100W | |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Employee Number:
50~60
Ecer Certification：
Verified Supplier
Beijing Tonghe Testing Instruments Co., Ltd. Profile 1. Company Foundation and Positioning: Beijing Tonghe Testing Instrument Co., Ltd. was founded by a core team with over 20 years of experience in material testing and testing machine R&D. With mature technical solutions and a global... Beijing Tonghe Testing Instruments Co., Ltd. Profile 1. Company Foundation and Positioning: Beijing Tonghe Testing Instrument Co., Ltd. was founded by a core team with over 20 years of experience in material testing and testing machine R&D. With mature technical solutions and a global...
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