Koehler K70300 / K70390 RPVOT (RBOT) Apparatus Oxidation Stability Tester

Condition: New Brand new item from stock or on order from manufacturer
1 YEAR MANUFACTURER'S WARRANTY
Stock #:
N885
Status:
Available In Stock (request a quote)
Dimensions (approx.):
37"W x 26"D x 33"H (outside)
Electrical:
220-240 Volts, 50/60 Hz,
Product Description
The RPVOT (RBOT) procedure employs severe oxidation conditions to rapidly determine oxidation stability. Suitable for both new and in-service oils, the RBOT method is applicable to many types of petroleum oils. The sample is oxidized in the presence of water and a copper catalyst in a stainless steel pressure vessel under an initial pressure of 90psi (620kPa). Pressure inside the vessel is recorded electronically or mechanically while the vessel is rotated at 100rpm at constant temperature, and the amount of time required for a specified drop in pressure is the oxidation stability of the sample. A variation of the RBOT method is the "Thin Film Oxidation Uptake Test" (TFOUT) for gasoline automotive engine oils.
Features and Benefits
- Two, three and four-pressure vessel models. PRESSURE VESSELS REQUIRED AT ADDITIONAL COST.
- Conforming to ASTM requirements for RBOT and TFOUT testing
Constant temperature bath rotates oxidation pressure vessels at 100rpm at an angle of 30° in accordance with ASTM specifications. Includes drive system and oil bath with electronic solid state temperature control. Tester meets ASTM requirements for heat transfer capability and temperature control precision.
A convenient carriage arrangement allows the oxidation vessels to be inserted quickly and securely in the drive system. A strong magnet holds the vessel in place while locating pins in the carriage engage the base of the vessel. PTFE guides support the pressure vessel stem for added stability. If the vessel becomes obstructed for any reason, the magnetic carriage releases it to prevent damage. A chain and sprocket drive system powered by a heavy duty capacitor start motor rotates the vessel carriages at 100rpm. Drive shafts ride on PTFE fluorocarbon bearings which provide extended service and are compatible with silicone heat transfer fluids and other types of bath oils.
Bath temperature is controlled within ASTM specified limits by an electronic solid state controller with °C/°F switchable digital setpoint and display. Over-temperature protection is provided by a built-in limit control that automatically interrupts power to the bath when bath liquid temperature exceeds 16.7°C (30°F) above the temperature setting or 177°C (350°F). Power must then be manually restored by the operator after checking the cause of the problem. Pressure vessel carriage vanes circulate the bath oil during testing to ensure temperature uniformity, and an auxiliary stirrer can be operated between tests to prevent sludging of non-silicone bath oils.
The bath interior is constructed of welded stainless steel and is fully insulated. A hinged section of the bath cover provides easy access to the vessel carriages. Vapor barriers in the cover close around the vessel stems to contain vapors from the hot bath medium. A chemical resistant polyurethane finish protects the bath exterior and control cabinet.
Specifications: Conforms to the specifications of: ASTM D2112, D2272, D4742; IP 229
Capacity: 2, 3 or 4 oxidation pressure vessels (Priced as a 3-place unit. PLEASE REQUEST PRICE ON 2 OR 4 POSITION BATH)
Maximum Temperature: 200°C (392°F)
Control Stability: ±0.02°C (±0.04°F)
Heater Range:
2 and 3-pressure vessel models: 0-2750W
4-pressure vessel models: 0-3750W
Drive System: 100rpm positive drive transmission powered by a continuous duty 1/2hp ball bearing motor with built-in gear reducer
Recommended Bath Medium: high temperature silicone heat transfer fluid (355-001-002 or 355-001-004)

REQUIRES PRESSURE MEASUREMENT SYSTEM - See stock #N885A or N885B for software or chart recorder options.
The following link provides additional information from the instruction manual or original manufacturer's brochure. Right-click to open the PDF in a new window or download it:
Koehler K70503 / K70593 XP RPVOT Oxidation Stability Tester
Looking for a specific close-up? Contact Us
Request a Free Quote Right Now
Please fill in the form below to get a quote for the Koehler K70300 / K70390 RPVOT (RBOT) Apparatus Oxidation Stability Tester:
Captcha
 

Categories

Analytical Instruments / Chemistry lab apparatus
chromatographs, calorimeters, evaporators, fluorometers, hydrogenators, osmometers, polarimeters, spectrophotometers, titrators, meters for pH / conductivity / dissolved solids / ORP ... and much more...

Biology / Microbiology laboratory apparatus
bioreactors, cell disrupters, cell harvesters, cryostats, digesters, freeze-dryers / lyophilizers, growth chambers, homogenizers, hybridization, incubators, microscopes, osmometers, spiral platers, sterilizers ... and much more ...

General Use laboratory apparatus
balances, baths, blenders, centrifuges, chart recorders, freezers, fume hoods, furnaces, glassware washers, glove boxes, mixers, moisture testing, ovens, pumps, shakers, vacuum equipment, water purification ... and much more ...

Medical / Clinical laboratory apparatus
anaerobic incubators, autoclaves, blood testing, cell counters, CO2 incubators, cryostats, electrolyte analyzers, electrophoresis, glove boxes, microtomes, sterilizers, ... and much more ...

Petroleum Products and Biofuel lab apparatus
baths, calorimeters, color measurement, density meters, flash point, hydrogenators, oil testing, penetrometers, surface tension, vapor pressure, viscometers and rheometers, ... and much more ...

Pharmaceutical laboratory apparatus
stability chambers, tablet disintegration, tablet dissolution, tablet hardness, V-blenders, ... and much more ...

Materials Testing / Physical Properties / Metallurgical lab apparatus
abrasion, color measurement, environmental chambers, gloss / reflectance, hardness, impact testers, melt point, particle size, paint testers, penetrometers, sieve shakers, tensile strength, viscometers ... and much more ...