tbs electronics SR12, Руководство по эксплуатации и обслуживанию

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Page 12
NOTE: Because the oil expands when it is heated leakage will occur if the oil reservoir is over
filled.
Annual
- After 2,000 hours of operation of the 3-gal unit or after one year (which ever is earlier), it will be
necessary to have preventive maintenance performed on the unit. This annual maintenance will include a
change of the thermal oil and servicing of various other parts along with the extension of the limited
warranty for an additional 12 months. This can be accomplished by either, 1) purchasing an Extended
Warranty Agreement or 2) for a fee, having a technician from the laboratory trained and certified to perform
the maintenance.
SAFETY FEATURES
The red indicator light when illuminated indicates that one of the two Safety thermostats has completely
turned off the system at sometime during the recovery cycle. The following is a description of all four
thermostat and timer. Only Safety thermostats will activate the red indicator light.
Timer Basic five hour timer. Rotate clockwise to start the recovery cycle. Note that the cooling fan will
continue to operate for 30 minutes after the heating cycle has ended.
Working Thermostat Used to control the temperature of the thermal oil that transfers heat to the distilling
chamber. Range 40-200° C. Note: The oil temperature is generally 15 - 20° C higher than the temperature
of the contaminated solvent within the distilling chamber.
Safety Thermostat Monitors the temperature of the thermal oil. If the Working Thermostat should
malfunction Safety Thermostat will STOP the heating if the oil temperature to exceed exceeds 225° C. The
red indicator Light will be activated.
Safety Thermostat The cooling fan cools the distillate to a temperature slightly above room temperature.
Should the fan malfunction the distillate pouring out of the outlet nozzles will be hot. The Safety
Thermostat monitors the temperature of the distillate. If that temperature exceeds 40° C the electrical
heating will be stopped and the red indicator light will be activated.
Fractional Thermostat A probe monitors the temperature of the vapor at the vapor collector duct. The
Fractional Thermostat allows the operator the ability to control the temperature when the three-way valve
will switch the distillate from the left distilled outlet nozzle to the right distilled outlet nozzle.
The red indicator light "out of work" signals that one of the safety thermostats have intervened. Turn off the
apparatus and refer to the "Malfunction, Causes and Remedies" portion of this manual.