Yamato Scientific BB600 Low Constant Temperature Water Bath - Manual (Page 50)

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Maintenance Method
Daily Inspection and Maintenance
For the safety use of this unit, please perform the daily inspection and maintenance without fail.
Using the city water to this unit might attach dirt. Do inspect and maintain this point while
performing daily inspection and maintenance.
WARNING!
• Disconnect the power cable from the power source when doing an inspection or maintenance
unless needed.
• Perform the daily inspection and maintenance after returning the temperature of this unit to the
normal one.
• Do not disassemble this unit.
CAUTION!
• Use a well-drained soft cloth to wipe dirt on this unit. Do not use benzene, thinner or cleanser for
wiping. Do not scrub this unit. Deformation, deterioration or color change may result in.
Monthly maintenance
• Check the earth leakage breaker function.
1. Connect the power cord.
2. Turn the breaker on.
3. Push the red test switch by a ballpoint pen etc.
4. If there is no problem, the earth leakage breaker will be turned off.
Maintaining the water bath
• Some types of circulating fluid condense and accelerate the accumulation of scale. If the water
bath is contaminated by fur or scale, dip out the water or drain it out from the drain cock, and wash
the bath clean.
• Use ion-exchanged water or distilled water, and clean the water bath as appropriate. If ground
water or tap water is used, fur or scale accumulates inside the bath and not only contaminates it
but also deteriorates heater efficiency and service life. Clean it as appropriate.
Exercise extreme care not to get injured. It is very dangerous for you to perform
operations with bare hands. Wear gloves.
① Remove the power cord from switchboard or socket.
② Discharge the circulating fluid. (Open the discharge cock on the back of the unit.) Connect
the attached discharge hose and open the discharge cock. Confirm that circulating fluid is
not hot (+40℃ or below) when discharging.
Before draining off the circulating fluid, confirm that it is not hot (+40°C or below).
If it is hot, you may get burned.