The HT-0090B automatic engine coolant freezing point tester complies with standards such as SH/T0090 “Test Method for Freezing Point of Engine Coolant” and is suitable for determining the freezing point of engine coolants and their concentrates.

Under specified cooling conditions, when the test sample is cooled to a certain temperature and solids precipitate, the temperature rises again, and the highest temperature reached during this rise is the freezing point.

Main Features:

1. Controlled by STM microprocessing chip, with adaptive PID control algorithm, which automatically adjusts temperature control according to standard requirements;

2. Automatic stirring, automatic detection, automatic printing during the test process, and fully automatic testing of the freezing point value of samples;

3. 8-inch Chinese and English color touch screen operation, real-time display of the temperature and temperature curves of the sample and cold bath;

4. Adopting compressor dual-machine refrigeration technology, the minimum temperature of the bath can reach -75℃;

5. Differential detection, automatic correction of system deviation, automatic stop of detection and alarm when temperature exceeds the limit;

6. Powerful storage capacity, storing 1000 records, which can be expanded to 500G storage, (optional) to achieve unlimited storage, and historical records can be checked at any time;

7. Display and operation in multiple languages. When the national standard is revised, the instrument program can be upgraded;

Main technical indicators:

Display mode: 8-inch color Chinese and English touch screen operation

Cold bath temperature control: room temperature ～ -75℃

Temperature control accuracy: ±0.1℃

Bath liquid stirring: stirring motor automatic stirring, power 6W, 1200r/min

Refrigeration system: refrigeration compressor

Sample stirring: synchronous reduction motor, 60 times/minute

Working power supply: AC220V±10%; 50Hz

Working cold bath: double-layer vacuum glass bath

Ambient temperature: ≤30℃

Relative humidity: ≤85%

Total power consumption of the machine: not more than 2000W