■ Characteristic
● Stainless steel chamber and top cover limit the water evaporation.
● PID controller controls the temperature precisely.
● Easy operation:running with data set and time set, and automatic shut-down based on setting.
● Special function key for temperature setting.
● Auxiliary menu makes over-temperature alarm, deviation calibration, and menu buttons lock come true.
| Technical parameters | |||||
| Model | HHW21.420AII | SHHW21.420AII | HHW21.600AII | SHW21.600AII | |
| Heat transfer way | natural water convection | ||||
| Performance | temp. range | RT+5～65℃ | RT+5～100℃ | RT+5～65℃ | RT+5～100℃ |
| temp. resolution | 0.1℃ | ||||
| temp. fluctuation | ±0.5℃ | ||||
| temp. uniformity | ±1.0℃ | ||||
| Structure | chamber material | stainless steel | |||
| shell material | spraying cold rolled steel | ||||
| thermal insulation material | PU | ||||
| top cover | stainless steel | ||||
| inner cover | x | √ | x | √ | |
| test-tube rack | x | √ | x | √ | |
| heating device | stainless steel heating tube | ||||
| rated power | 0.5kw | 1.0kw | 0.75kw | 2.0kw | |
| Controller | temp. control | PID | |||
| temp. setting | press the four keys slightly | ||||
| temp. display |
actual temp.:displayed by 4 digit red digital tube (row 1)； setting temp.: displayed by 4 digit green digital tube (row 2). |
||||
| timer | 0～9999min(with timing function) | ||||
| operation function | running with data set and time set, and automatic shutdown based on setting | ||||
| program mode | optional | ||||
| additional function | deviation calibration, menu buttons lock, power outage compensation, power outage memory | ||||
| sensor | CU50 | ||||
| Safety device | over-temperature alarm | ||||
| Specification |
working size (W*D*Hmm) |
420*180*140 | 600*300*200 | ||
|
exterior size (W*D*Hmm) |
570*230*270 | 750*350*360 | |||
|
packing size (W*D*Hmm) |
650*300*315 | 840*430*360 | |||
| working capacity | 11L | 36L | |||
| shelf load bearing | 5kg | ||||
| layer of shelf | 1 | ||||
| Power source( 50/60Hz)/Rated current | AC220V/2.3A | AC220V/4.5A | AC220V/6.8A | AC220V/9.1A | |
| NW/GW | 8/9.5kg | 8.5/10kg | 17/19kg | 18/20kg | |
