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Automatic Pour Point and Solidification Point Tester HM-NQ
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Product Overview
HM Instruments HM-NQ is an automatic pour point and solidification point tester for petroleum laboratories assessing the low-temperature flow of compatible finished oils. Automatic air-pressure detection and semiconductor refrigeration support routine sample evaluation, using 4.5 mL per test. Sample condition and viscosity should be checked before selecting the test workflow.
The sample is preheated to 45°C or the expected value plus 9°C, then cooled at a controlled rate. Pressure checks begin at the expected value plus 15°C and repeat at 1°C intervals. The manufacturer’s product documentation lists ASTM D6749 and SN/T 3017 and references GB/T 510, ISO 3016 and ASTM D97 for comparison with the tilt method. These references are not a claim of independent product certification.
Key Features
- Elbow-clamp sealing simplifies sample-chamber closure; automatic leak detection provides an alarm.
- Automatic air-pump cycling supports the test process without manual pre-evacuation.
- Semiconductor cooling protection monitors cooling-water temperature and stops the instrument with an alarm under abnormal conditions.
- The bilingual touchscreen displays real-time temperature curves and parameters for observing test progress.
- Data export, cloud upload and thermal printing support result handling.
Applications
- Suitable examples include compatible lubricating oils, hydraulic oils, transformer oils, diesel, white oil and heat-transfer oils.
- Samples must be homogeneous, of low to medium viscosity, and free of substantial solid matter and free water.
- Do not use for crude oil, tar, untreated engine oil, severely emulsified or high-solid samples, or samples containing substantial free water, free wax lumps or asphaltene precipitates. Confirm compatibility before testing.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | HM-NQ |
| Operating system | Android |
| Languages | Chinese / English |
| Display | 7-inch touchscreen, 1024 × 600 pixels |
| Sample volume | 4.5 mL |
| Test interval | 1°C |
| Test range | −70°C to +51°C |
| Repeatability | ±1°C |
| Temperature measurement | Class A PT100 |
| Temperature accuracy | 0.1°C |
| Detection pressure | 310 Pa |
| Pressure sensor | High-precision air-pressure sensor |
| Cooling | Semiconductor refrigeration |
| Heating rate | 1–3°C/min |
| Cooling rate | At or above EPP + 40°C: 3–4°C/min; below EPP + 40°C: 0.8–1.1°C/min |
| Display data | Real-time temperature curve and parameter values |
| Storage | Limited by available eMMC capacity |
| Data functions | Data export and cloud upload |
| Printer | Thermal printer |
| Power supply | AC 220 V ±10%, 50 Hz ±5% |
| Power consumption | ≤350 W |
| Ambient temperature | 0–35°C |
| Ambient humidity | ≤85% |
| Instrument dimensions | 440 × 370 × 390 mm (L × W × H) |
| Instrument weight | 19 kg |
| Instrument package | 510 × 390 × 375 mm; 22.7 kg |
| Bath package | 400 × 400 × 800 mm; 34.8 kg |
Configuration / Accessories
The standard configuration includes the main instrument and an LD-H0620 6 L constant-temperature bath. The bath’s −20°C to 100°C specification describes the bath, not the instrument’s full test range. No optional accessories are listed in the current configuration sheet.
| Item | Quantity | Specification |
|---|---|---|
| Main instrument | 1 | |
| Power cord | 1 | |
| Constant-temperature bath | 1 | LD-H0620, 6 L, −20°C to 100°C |
| Test tubes | 4 | 20 × 55 mm, flat bottom, 4.5 mL mark |
| Silicone rings | 4 | 32 × 24 × 4 mm |
| Thermal paper rolls | 2 | 57 × 30 mm |
| Water hoses | 2 | 9 × 16 mm; 1.5 m each |
| Insulation hoses | 2 | 20 mm inner diameter; 7 mm thickness; 1.5 m each |
| Preset holder | 1 | |
| Hose clamps | 4 | 13–19 mm diameter |
| Sampler | 1 | |
| Instruction manual | 1 | |
| Certificate of conformity | 1 | |
| Warranty card | 1 |
Operation and Support / FAQ
How much sample is required?
The specified sample volume is 4.5 mL. The supplied flat-bottom test tubes have a 4.5 mL mark.
Can HM-NQ test crude oil or tar?
No. The current manufacturer’s sample restrictions exclude crude oil and tar. Confirm the composition and viscosity of other oils before testing.
Product Enquiries
Contact our sales representative to confirm sample suitability, request configuration information or coordinate service enquiries.
Sales Contact: Kyra
Email: Kyra@hmdzkj.cn
Tel / WhatsApp / WeChat: +86 13792642016
Call sales · WhatsApp
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