Evaporation Loss Test Bath for Oil Fuel and Petroleum Testing Instruments

The Evaporation Loss Tester evaluates the potential for lubricant components to evaporate during high-temperature service. The test measures the change in sample weight after a controlled flow of heated air passes over the sample for a specified period. The apparatus is suitable for lubricating oils and greases and can also be used for estimating the apparent vapor pressures and molecular weights of lubricating oils in accordance with ASTM D2878. The evaporation cell consists of a stainless steel body, cover, eduction tube, and hood, with a calibrated flowmeter and needle valve to maintain the required airflow. Interchangeable stainless steel sample cups accommodate oil or grease samples. The constant-temperature bath holds two evaporation cells in an upright position at the required immersion depth. Microprocessor PID control provides rapid temperature stabilization, while dual LED displays show actual and setpoint temperatures in Celsius or Fahrenheit. Over-temperature protection interrupts power if the bath exceeds the programmed cutoff. The bath features fully insulated, double-wall construction, a stainless steel tank, and a polyurethane-finished steel exterior. Manufactured by Atico Export with a focus on precision, durability, and reliable performance for lubricant evaporation loss testing applications.

Testing Standards:

• ASTM D2878

Testing Applications:

• Evaporation loss testing of lubricating oils and greases
• Estimation of apparent vapor pressures of lubricating oils
• Estimation of molecular weights of lubricating oils

Evaporation Cell Specifications:

• Suitable temperature range: 210°F to 300°F (99°C to 149°C)
• Airflow rate: 2 L/min at standard temperature and pressure
• Stainless steel body, cover, eduction tube, and hood
• Calibrated flowmeter with needle valve
• Interchangeable stainless steel oil or grease sample cups
• Designed for mounting in the evaporation loss test bath

Bath Capacity:

• Two oil or grease samples

Bath Temperature:

• Maximum temperature: 350°F (177°C)
• Temperature control stability: ±1°F (±0.5°C)

Temperature Control:

• Microprocessor PID control
• Dual LED displays for actual and setpoint temperatures
• Selectable Celsius or Fahrenheit display
• Over-temperature protection with programmed cutoff

Circulation:

• 1/20 HP stainless steel impeller

Bath Medium:

• 5.3 gallons (20 L) of high-temperature heat-transfer fluid

Power Supply:

• 115 V, 60 Hz, single phase, 8.6 A
• 220–240 V, 50/60 Hz, single phase, 4.5 A

Dimensions (Diameter × Height):

• 33.1 × 25.5 inches (84 × 65 cm)
• Maximum width with two evaporation cells inserted

Net Weight:

• 38 lbs (17.2 kg)