Physical testing
Density meter
Measures the density or specific gravity of a liquid in about a minute, using a vibrating glass U-tube. It replaces the pycnometer for most routine work.
- Pharmaceutical
- Food & beverage
- Spirits & brewing
- Chemicals
- Petrochemicals
PREVENTIVE MAINTENANCE
Maintenance checklist
Daily / each use
- Air and water check
- Rinse and dry the tube after each sample
- Check the syringe adapter and tubing for leaks
Monthly
- Clean the tube with a suitable cleaning solution if deposits are suspected
- Check the pump tubing and air filter
- Check against a second known liquid if your SOP requires
Six-monthly / annual
- Calibration check with certified density standards
- Temperature check
- Preventive maintenance by the service engineer
SAFETY
Safety precautions
Before you work on the Density meter
- Handle cleaning solvents in a ventilated area away from ignition sources.
- Do not fill the tube with hydrofluoric acid or hot concentrated alkalis; they attack the glass.
- Wear gloves and eye protection when filling with corrosive or toxic samples.
In LimsPulse · Calibration Management
Keep every Density meter in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.