由愛(ài)斯佩儀器網(wǎng)供應(yīng)Thermo NESLAB RTE-740數(shù)字控制器I型制冷水浴*，面向全國(guó)供貨，所有產(chǎn)品均按國(guó)家規(guī)定銷(xiāo)售，口碑相傳的愛(ài)斯佩儀器竭誠(chéng)為您提供全新的實(shí)驗(yàn)操作體驗(yàn)。
制冷水浴技術(shù)參數(shù)：
型號(hào)分類(lèi)：NESLAB RTE-740數(shù)字控制器I型 賽默飛世爾/美國(guó)熱電
Temperature Range : -40° C to +200° C
Cooling Capacity : 800 Watts at 20°C Fluid Temperature （700 Watts 50 Hz）
Pump Flow : 15 liters per minute maximum
Pump Pressure : 16 feet maximum
Pump Type : Force and Suction
Heater Wattage : 800 Watts （2000 Watts 230 volt models）
Temperature Stability : +/-0.01°C
Reservoir Volume : 7 liters
Reservoir Dimensions （LxD） : 6.6" x 7.2" x 6" （16.8cm x 18.3cm x 15.2cm）
Unit Dimensions （HxD） : 26 5/8" x 11 3/8" x 18 7/8" （67.6cm x 28.9cm x 47.9cm）
Shipping Weight : 90 lbs. （40.9 kgs）
性能特點(diǎn)：
The Thermo Scientific NESLAB RTE-740 7 liter low temperature refrigerated bath offers great value for either external circulation or in-bath applications:· Large work openings for big or multiple samples· Simple to use controls available with the Digital One· Wide temperature range and high cooling capacities （800W） to meet your application needs （down to -40°C）
The RTE-740 refrigerated circulating bath and heating bath circulator offers the highest cooling capacity per dollar, a small footprint to conserve valuable bench space, and a 2 year warranty for peace of mind.
All models feature:
Powerful force and suction pumps to circulate long distances or to open or closed containers
Seamless stainless steel tanks for excellent fluid compatibility and easy cleaning
Low reservoir fluid level shut-off safety
Nitrogen purge port to minimize moisture during low temperature operation
User enabled full range cooling. Compressor can be operated over entire temperature range!
UL Listed to UL-3101-1, CSA 1010.1, CE Marked （230V/50Hz RTE-740 units are CE Marked only）
Environmentally friendly R404a CFC free refrigerant
Tool-less removal of front grille for easy condenser cleaning
Reservoir drain for quick and tidy fluid changes
The Digital One Controller Features:
Bright LED digital display
User selectable resolution 0.1C or 0.01C
User adjustable low temperature and high temperature alarm limits
User selectable fault conditions
Continuous run with visual alert
Shut down with visual alert
Automatic reservoir refill port
Looking for more features?
Remote sensing
RS-232 and RS-485 communication port
On/Off Timer with clock
Audible safety alarm with mute
Temperature Display Offset
行業(yè)應(yīng)用補(bǔ)充說(shuō)明：
因?yàn)樵谝粯?biāo)準(zhǔn)大氣壓下，水達(dá)到沸點(diǎn)的條件是100攝氏度,但是從液態(tài)變到氣態(tài)還需要吸收更高的熱量,在水浴法里，燒杯里的水在變成水蒸氣前都只能有100攝氏度的溫度，無(wú)法為試管里的水提供更多的熱量，所以試管內(nèi)的液體是不能沸騰的.所以常常利用這種溫度不改變的原理對(duì)一些需要定溫加熱的反應(yīng)進(jìn)行水浴加熱.先在一個(gè)大容器里加上水，然后把要加熱的容器放入加入水的容器中。加熱盛水的大容器通過(guò)加熱大容器里的水再通過(guò)水把熱量傳入需要加熱的容器里，達(dá)到加熱的目的。
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