The purpose of this experiment is to test the ability of leather samples to penetrate water vapor.

Meet the standard

UNI EN IUP / 15

UNI EN 13515

EN ISO 20344:6.6

IUP 15

BS 3144

Method 24

SLP 25

DIN 53333

The ISO 17699

DIN 429 53

Metodo-309 WI 009

3. Technical parameters

Power: 300 w

Location: 6

Timer: record the test time

Fan speed: 1400r/min

Sample turntable: 75r/min

Weight: 45 kg

Size: 350 x570x450mm

4. Air noise

Noise intensity does not exceed 70 db, adopt muffler protection.

5. Functional devices

- test bottle holder

- ventilation fan

- control panel

6. Control panel

The control panel has switch function and test time setting and recording function.

- air switch (leakage protector)

- start key

Stop button

- the reset button

- the timer

7. Specifications and safety guidelines

In order to protect the safety of the operator and the instrument, the operator must follow the correct instructions before operating the instrument. This instrument is not dangerous because the motor speed is slow and there is no emergency stop point.

Do not touch the specimen support system with your hands while the instrument is working. Safety regulations should be followed.

Note:

- disconnect the power supply during instrument maintenance and pay attention to abnormalities during cleaning.

- please call a professional to repair the instrument.

- do not use this instrument for any other experiments.

Electrical equipment:

The operating part of the instrument is placed in a protective cover to avoid any direct contact, and the electrical control panel can only be opened when the instrument is turned off.

Make sure the instrument is grounded.

Sports section:

There is no danger to the movement part according to the operation.

Do not touch the fan or test bottle holder during instrument operation.

8. Shipping instructions

The instrument is designed to be stable and carefully packed into suitable cartons during transportation.

Considering the weight of the instrument, use lift if necessary, at least 50kg.

Special care should be taken to move the instrument without packing:

- avoid violent impact which may cause mechanical and electronic damage to the instrument.

9. Instrument installation guide

- ground the instrument before using it.

- ensure that all control boards operate in good conditions.

- make sure the instrument is placed on a stable support to prevent falling.

10. Operating instructions

Follow these instructions:

sample

The sample cup shall be prepared according to method IUP/3 and shall be round with a diameter of 30mm.

In order to avoid mechanical changes, it is recommended to use leather sampler for sampling.

Place the sample between the cup and the lid.

Install the sample

The test method

Connect the instrument to the 220V single-phase 50Hz circuit, and push the circuit breaker button so that the instrument is grounded with a complete leakage protection.

Fixing the sample as described above.

Turn on the experiment switch.

Set experiment time, test results are the same and uniform, will not be different because of different operators.

The operator can choose the time scale.

At the end of the test, the timer will be automatically positioned at the preset time to ensure perfect repeatability.

Press the start button for the experiment.

The principle of

(1. The instrument has 6 independent test stations, which are located on a rotating platform and each station has a sample holder. There is silica gel desiccant in the fixture. The test sample is placed at the clamping mouth of the fixture and fixed with screw cover. Weigh each fixture first, including silica gel desiccant and test sample. After weighing, place the fixture in the rotary device and fix it.

2. After 7 to 8 hours, each fixture is weighed again and the permeability is measured with the results. Normally, the whole test process should be conducted at 20℃ and 65% relative humidity. Also record the time of the test through a timer.

The results of

Results were calculated by the following methods:

T = test time, in unit h;

M = the increased weight of the sample before and after the test, in unit mg;

P = water vapor permeability, unit mg/cm2.

D2 is the diameter of the bottle mouth in mm

P = 7639 * (m)/(d2 * t).

11. Instrument maintenance

Note: disconnect the power supply before performing any maintenance on the instrument.

Operation method:

Brown parts should be cleaned regularly to avoid rust.

The threaded parts should be lubricated regularly.

Remove powder.

12. Possible problems

Timer does not time: near the pulse counter may stop using: replacement.

Leakage protector switch off: possible motor failure: call technical support.

For any other questions, please contact the supplier immediately.

13. Guide for stopping operation of instrument

There are no special concerns: as opposed to the preparation of the instrument.

Label the instrument "not in use".

14. Demolition

The equipment does not contain any hazardous materials: when removed, follow the city's solid materials regulations.