• High Temperature Evaporation Loss Tester

High Temperature Evaporation Loss Tester



For determination of evaporation loss of lubrication grease at temperatures from 93-316° C. A controlled flow of heated air is passed over the sample for a specified period. Evaporation loss is measured by the change in sample weight during the test. 

  • Conforms to ASTM D2595 specifications
  • Microprocessor temperature control with digital display and overtemperature cut-off
  • Microprocessor programmable high accuracy temperature control

Performs evaporation loss tests on lubricating greases at temperatures of up to 600°F (316°C). Maintains sample temperature within ±0.3°F while passing heated air over the sample surface at a controlled flow rate. Consists of evaporation cells and aluminum block oven with controls for sample temperature, air temperature and air flow rate. Evaporation cells include grease sample cup, head, eduction tube, cover and thermocouple tube. Aluminum block oven provides efficient response and safe operation at high temperatures. Microprocessor temperature control has °C/°F switchable digital setpoint and display. Operator and equipment are protected by an overtemperature control circuit which automatically interrupts power to the unit when bath temperature exceeds a programmed cut-off point. Microprocessor PID control provides quick temperature stabilization without overshoot and the bath is protected by an overtemperature control circuit that interrupts power should bath temperature exceed a programmed cut-off point. Dual LED displays provide actual and setpoint temperature values in °C/°F format. Communications software (RS232, etc.), ramp-to-set and other enhanced features are available as extra cost options. Contact your Koehler representative for information. Separate air preheater controls and flowmeters for each cell permit accurate control of heated air flow to sample surface. Order accessory Digital Thermometer (Cat. No. K29310) to monitor exit air temperature and ASTM 3F or 3C Thermometer for block (sample) temperature. Accessory oil sample cup (Cat. No. K29530) converts evaporation cell for lubricating oil samples.

  • Evaporation Cell Assemblies with grease sample cups (2)
  • Type K Thermocouples (2)

Conforms to the specifications of: 

ASTM D2595, D2878* *with accessory oil sample cup installed

Capacity: 2 samples

Temperature Range: 200 to 600°F (93 to 316°C)

Sample Temperature Control: Type: microprocessor digital control

Exit Air Temperature Control: Two 0-500W variable control heaters and type K thermocouples (order K29320/K29329 Digital Thermometer separately)

Air Flow Control: Two externally mounted flowmeters maintaining 2L/min flow at standard temperature and pressure

220-240V 50/60Hz, Single Phase, 10.4A

lxwxh,in.(cm): 25x16x17 (64x41x43)
Net Weight: 175 lbs (79.4kg)

Shipping Weight: 277 lbs (125.6 kg)

Dimensions: 31x26x38 in. (78.7x66.0x96.5 cm)

  • K29320 High Precision Digital Thermometer, 115V 60Hz - Microprocessor based digital thermocouple thermometer with ten channel input. Monitors Type K Thermocouples from evaporation cells in K29300 Evaporation Loss Tester. Use together with preheater controls in Model K29300 to maintain air temperature within ±1.1°C (±2°F) per ASTM specifications
  • K29329 High Precision Digital Thermometer, 220-240V 50/60Hz
  • 250-000-03F ASTM 3F Thermometer - Range: 20 to 760°F
  • 250-000-03C ASTM 3C Thermometer - Range –5 to +400°C
  • K29530 Oil Sample Cup with Hood
  • K29540 Grease Sample Cup with Hood