Low temperature constant bath 200 300 Version 1.1 z Thank you very much for purchasing the product of Yamato Scientific Co., Ltd.. z Read this operating manual and the guarantee card thoroughly for the proper use of this product. Please keep both importantly after reading. Warning : Before attempting to use the product, read the important warnings that appear in the text of this manual and get familiar with them.
Table of Contents Attention________________________________ ________________________________________________________________ ____________________________________ Attention ________________________________ ____________________________________ 1 Merit ________________________________________________________________ _______________________________________________________________________ _______________________________________ 2 BU200 and BU300 have following merits ____________________________________________
Attention For the important warnings, the following symbols are used depending on the level and content of danger. Warning For personal accident prevention Failure to observe them may result in bodily harm and severe accidents according to circumstances. Caution For damage prevention of product Failure to observe them or to correct trouble may damage the product itself or samples. In addition, information on performance and mis-operation, which is useful for operation and maintenance.
Merit BU200 and BU300 have following merits 1. CFC-Free refrigeration system 2. Featuring earth leakage circuit-breaker 3. Building up optimized heating/cooling system by combining with appropriate immersion temperature control device. 4. This machine has the service outlet. It is possible to use this outlet as a power supply of Immersion temperature control device. (applicable to BU200 only) 5. By the optional putting stand, test tube racks can be used.
Please observe the following rules Installation Warning 1. Please take the earth Please take the earth to avoid the electric shock hazard by the leak. In case of outlet with ground at use When you use the outlet of the dipoles type Please insert the power supply plug in the ground outlet. The optional earth adapter is inserted in the power supply plug. Please connect the power supply plug with the outlet after confirming the polarity on the outlet side.
When using Warning 1. Do not sprinkle water on the main body When water splashes to the electrical component, the leak and the electric shock are caused. Water must not splash to the operation panel and the power supply switch. Please turn off the power supply on the building side when water lies by any chance. And, please wipe water off. The danger of the leak and the electric shock grows when leaving as it is. Caution 1.
3. About the liquid in the reservoir Please use water or the ethyl alcohol solution. (1) When using water To use the ion exchange water or distilled water is recommendable. Because the adhesion of scale is few, maintenance becomes easy. (2) When using alcohol Be sure to use the ethyl alcohol solution. Please refer to the table to your right for the density of solution. Please never use neither antifreezing solution for the car nor the ethylene glycol solution.
Name of each part and function BU200 Power supply switch To turn the switch off makes power of the equipment off. 1. / 4.) ()page9-1. When over-current or leakage of current occur, the power supply switch is turned off automatically. Refrigerator switch Drain entrance When the side of the switch marked ‘on’ is pushed, the refrigerator begins working. When the opposite side is pushed, the refrigerator stops working. ()page11-2.) 3. / 4.) ()page9-3. Service outlet ()page8-2.
BU300 Refrigerator switch When the side of the switch marked ‘on’ is pushed, the refrigerator begins working. When the opposite side is pushed, the refrigerator stops working. 3. / 4.) ()page10-3. Power supply switch To turn the switch off makes power of the equipment off. 1. / 4.) ()page10-1. When over-current or leakage of current occur, the power supply switch is turned off automatically. Drain entrance ()page11-2.) Power supply cable ()page3-1. / 2.
Preparation and confirmation before using 1. Pour the liquid into the reservoir The amount of the overflow liquid changes depending on the shape and the number of the container. Please pour appropriate amount of liquid into the reservoir. It is recommended to pour the liquid to the extent that the liquid just hides the cooling coil. 2. Attach immersion temperature control device Please loosen the knob for fixation of the immersion temperature control device and set it up at the back of the main body.
Method of operation BU200 3. Push the "On " side of the refrigerator 1. Turn the power supply switch on switch The power supply turns on when the power supply switch is moved up. So long as the setpoint of immersion temperature control device is equal to or less than the room temperature +5°C, turn the power of the refrigerator on. Even if the temperature in the reservoir is high, the refrigerator can operate. 2.
BU300 3. Push the "On " side of the refrigerator 1. Turn the power supply switch on switch The power supply turns on when the power supply switch is moved up. So long as the setpoint of immersion temperature control device is equal to or less than the room temperature +5°C, turn the power of the refrigerator on. Even if the temperature in the reservoir is high, the refrigerator can operate. 2.
Method of maintenance Caution When maintaining, please pull out the power supply plug from the outlet for safety. Do not decompose the equipment. 1. Main body Please wipe the dirt of the surface off with a soft cloth which squeezes and removed moisture. There is danger of the electric shock. Please do not wipe the equipment with benzine, thinner or kurenzah etc. Please do not rub with the scourer. The painting of the equipment is hurt and rust is caused. 2.
3. Refrigerator Please detach the cover of the front of this machine regularly and remove the garbage which adheres to the condenser fin with a cleaner. Please pay attention so as not to crush the fin when cleaning.
After-sales service and guarantee 1. When you request the repair 2. Guarantee book The guarantee book is passed from the dealer or our company office. Please keep it importantly after confirming the filling in matter such as the shop name and the purchase days and often reading. The guaranteed term is for one year from purchase day. When the breakdown occurs within the guaranteed term, our company repairs free of charge according to the condition described to the guarantee book.
Specification table BU200 BU300 − 10 to 80 − 20 to 80 at 20 °C 350 (300 2 290 (250 kcal/h) at 10 °C approximate 90 5 ( 20 to − 10 °C) Air cooling sealing type 150 W 465 (400 kcal/h) 3 at 20 °C 400 (350 kcal/h) 4 at 0 °C approximate 120 6 ( 20 to − 20 °C) Air cooling sealing type 400 W Model Performance ↓ Temperature Range (°C) kcal/h)1 Cooling Capacity (J/s) Time to reach the lowest temperature (minute) Compression machine output Refrigerator Refrigerant R22 Dimensions ↓ 13 220 × 160 × 150 650 ×
Chart of connecting wires BU200 BU300 Symbol FG ELB P Power supply plug S8 Service outlet X 15 Earth leakage circuit-breaker Refrigerator T1, T2 Applicable to BU200 only Frame ground RF SW 8 Name Switch Terminal Block Relay
Exchange part table BU200 Symbol Part name Code number Specification Maker ELB Earth leakage circuit-breaker 2-06-005-0019 AC100V 15A BJS1531 Matsushita Elec. T1, T2 Terminal block 2-07-000-0004 F1112-250-6-4P Fujicon S Service outlet 7-08-002-0008 S-150 Satohparts SW Switch 2-01-011-0008 C1353AT-BGS Izumi RF Refrigerator 3-01-002-0006 UF-S210ML Sanyo X Relay 2-05-012-0003 15A 250VAC AR6524 Matsushita Elec.
