Koehler Instrument K29300 High Temperature Evaporation Loss Test Apparatus

Product Description
Evaluates the potential for evaporation loss of lubricant components in high temperature service. 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. The Evaporation Loss test can also be used for Estimating Apparent Vapor Pressures and Molecular Weights of Lubricating Oils (ASTM D2878). Similar to the ASTM D972 Evaporation Loss test, the temperature range is extended for evaporation loss testing to 600°F (316°C).

Features and Benefits
~ 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. 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.

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 IC thermocouples. (Order K29310 Digital Thermometer separately.)

Air Flow Control: Two externally mounted flowmeters maintaining 2L/min flow
at standard temperature and pressure.
The following link provides additional information from the manufacturer's brochure. Click to open the PDF in a new window or right-click to download it:
Koehler K29300 High Temperature Evaporation Loss Test or copy the following into your browser address window: labequip.com/stock/pictures/n1180.pdf
Made in USA.

ACCESSORIES:

COMES COMPLETE WITH:
2 Evaporation Cell Assemblies with grease sample cups
2 Type K Thermocouples

OPTIONAL ACCESSORIES AVAILABLE AT ADDITIONAL COST:
- K29320 High Precision Digital Thermometer - 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
- 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

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