HZNQ-1101 ASTM D97 Cloud Point and Pour Point Tester

Overview

Freezing point refers to the maximum temperature in which all liquid fluid stops flowing under the specified cooling conditions.

HZNQ-1101 Oil pour point Tester, is used in the determination of transformer oil, lubricating oil and light oil and freezing point values of all kinds of chemical raw materials, the instrument adopts the imported refrigeration compressor, refrigeration rate faster, refrigeration function stronger .Imported high precision sensor, high test precision. It is widely used in electric power, chemical industry, railway, petroleum and other fields.

Technical Parameters

Range: room temperature ~ -45 ℃;

Accuracy:±0.1℃

Display: digital tube display;

Test mode: automatic temperature control, manual test;

Temperature sensor: PT100 platinum resistance;

Test hole:Two holes.

Cooling rate: not less than 70 ℃ / h

Refrigeration mode: compressor refrigeration;

Power: 1500W;

Power supply voltage: AC220V 50Hz;

Applicable environment: temperature 40 ℃ or less moisture 80% or less

Instrument weight: about 40KG.

Precautions And Equipment Maintenance

1. The instrument shall be used in a non-corrosive environment.

2. When changing samples, test tube shall be cleaned.

3. The thermometer should not be greasy, so as not to affect the detection sensitivity.

4. During the test, do not put your hands in the freezer to avoid frostbite.

Pour Point Operation Method

1. Name: Pour Point

2. Method summary: After the sample is cooled, check the fluidity of the sample every 3°C, and record the lowest temperature at which the sample can flow as the pour point.

3. Operation method

①Pour the sample into the dry and clean test tube to the ring mark, fix the thermometer in the center of the test tube with a stopper, make the bottom of the thermometer bubble 8 mm～10 mm from the bottom of the test tube, and then inject 1 mL～ into the bottom of the sleeve. 2 mL of absolute ethanol.

Then put the test tube into the sleeve to form the test tube assembly.

②Immerse this test tube assembly in the prepared cooling bath. From the first observation of the fluidity of the sample, the fluidity of the sample should be observed every time the temperature drops by 3°C, paying special attention not to disturb the lumps in the sample. The thermometer should not be moved after the sample is cooled enough to form paraffin crystals. When the temperature is low, the condensed water mist will hinder the observation. You can wipe the test tube with a cleaning cloth moistened with a wiper close to the temperature of the cold bath to remove the outer surface Water mist.

③When the test tube is tilted and the sample does not flow, immediately place the test tube in a horizontal position for 5 seconds (measured with a timer), and carefully observe the surface of the sample. If the sample shows any movement, immediately put the test tube back into the bath Or in the casing, when the temperature is lowered by 3°C, re-observe the fluidity of the sample.

④ Operate in this way until the test tube is placed in a horizontal position for 5 seconds and the sample in the test tube does not move. Record the thermometer readings observed at this time, and add 3°C to the recorded result as the pour point or lower Pour point.