- Systester Instruments Co., Ltd
- Main products: package testing equipments
ChinaHome > Products > Water Vapor Permeability Tester > Humidity Sensor Automatic Water Vapour Permeability Tester WVTR-398B
Humidity Sensor Automatic Water Vapour Permeability Tester WVTR-398B
- Jinan
- T/T L/C
- 5 days
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Product Details
| Brand Name | SYSTESTER | Place of Origin | China | |
| Model Number | WVTR-398B | Power | Electronic | |
| Usage | Auto Testing Machine |
Product Description
Application:
WVTR-398B is based on the humidity sensor detection method and available for the water vapor permeability test of heat exchange membranes, nonwoven fabrics and flexible barrier materials.
Features:
— Relative humidity sensor detection method
— Embedded system, remote maintenance and update
— One specimens test
— Highly automatic test in entire process
— Highly accurate water bath temperature control technology
— Highly accurate RH detection sensor inside
— Swagelok stainless steel pipes with long service life
— Digital flow adjustment
— Chamber with temperature sensor monitoring (DALLAS)
— Data curves display
— Computer control
— Overload protection
— Traceable reference film calibration
— 5 grades user managements, GAMP5 regulations
— System log file
— Supports DSM system (DSM, lab data management system)
Principles:
The specimen is clamped between the upper and lower chamber, the upper chamber is high humidity side, and the other side of specimen, lower chamber is purged by a stream of dry gas, due to the effect of water concentration gradient at two sides of the specimen, water molecules will permeate through the specimen into the dry gas side, penetrated water molecules will be carried to the relative humidity sensor which generates the proportional signal, so water vapor transmission rate will be obtained by calculating the sensor signal.
Technical indexes:
| Test range | 5 - 6500 g/m2·24h (Standard) |
| Resolution | 0.001 g/m2·24h |
| Specimen amount | 1 specimen |
| Temperature range | 5C–95C |
| Temperature accuracy | ±0.1C |
| Humidity range | 100%RH (Standard) |
| Humidity accuracy | ±1%RH |
| Test area | 38 cm2 (Standard) |
| Specimen size | >=150mm * 94mm |
| Thickness | less 3mm |
| Carrier gas | Dry Air, or 99.999% Nitrogen |
| Carrier flow | 0~200 ml/min |
| Gas interface | 1/8inch |
| Power supply | AC 220V 50Hz |
| Dimension | 330mm(L) * 600mm(D) * 330mm(W) |
| Net weight | 30kg |
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