■ Characteristic for model BIII and BX
● Independent humidificatifier ensures humidity control.
● 30 periods of programs LCD controller, gradient running.
● Special function key for temperature setting.
● Auxiliary menu makes over-temperature alarm, deviation adjust, and menu buttons lock come true.
● Forced air convection makes the temperature more uniform.
● Power outage protector: automatic recovery to previous normal status after power on.
● Compressor overload protector.
■ Special characteristic for model BX
● Shelf-check of the circuit, sensor fault alarm, and superior and inferior limit over temperature alarm.
● Intelligent refrigeration and defrosting system.
● Watchdog timer
● Over temperature protector.
| Technical parameters | ||||
| Model |
HWS-70B HWS-70BX |
HWS-150B HWS-150BX |
HWS-250B HWS-250BX |
|
| Application | constant temperature experiment and environment experiment in which humidity is needed | |||
| Air circulation type | forced convection | |||
| Performance | temp. range | without humidification: 0～65℃; with humidification: 10～65℃ | ||
| temp. resolution | 0.1℃ | |||
| temp. fluctuation | high temperature: ±0.5℃; low temperature: ±0.1℃. | |||
| temp. uniformity | ±1℃ | |||
| humidity range | 45%～90%RH | |||
| humidity fluctuation | ±5%RH | |||
| Structure | chamber material | stainless steel | ||
| shell material | spraying cold rolled steel | |||
| thermal insulation material | PU | |||
| heating device | stainless heating tube | |||
| rated power | 0.7kw | 1.0kw | 1.4kw | |
| compressor | Air-cooled hermetic compressor | |||
| refrigerant | R134A | |||
| defrosting system | model B: manual; model BX: automatic | |||
| humidity control | automatic | |||
| fairlead | φ52mm*1 on the left side of the body | |||
| controlled external power supply | 1pc | |||
| Controller | temp. control |
model B:1 period of program LCD,PID; model BX: 30 periods of program LCD,PID. |
||
| temp. setting | press the four keys slightly | |||
| temp. display |
actual temp. is displayed by LCD (row 1); setting temp. is displayed by LCD (row 2). |
|||
| timer | 0～9999 minutes (with timing function) | |||
| operation function | running with data set and time set, automatic shut-down based on setting, start with time set, and running with program set. | |||
| program mode | standard configuration | |||
| sensor | Pt100 | |||
| additional function | model B: deviation calibration, menu buttons lock, power outage compensation, power outage memory. | |||
| model BX: over temperature protector. watchdog timer, shelf-check of the circuit, intelligent refrigeration and defrosting system | ||||
| Safety device |
model B: over-temperature alarm, overload protector; model BX: independent temperature limiter, shelf-check of the circuit. |
|||
| Specification | working size (W*D*Hmm) | 420*350*500 | 490*400*750 | 500*500*950 |
| exterior size (W*D*Hmm) | 570*560*1020 | 640*620*1270 | 660*700*1470 | |
| packing size (W*D*Hmm) | 730*720*1170 | 820*760*1430 | 880*825*1645 | |
| working capacity | 70L | 150L | 250L | |
| shelf load bearing | 15kg | |||
| max shelf layer | 5 layers | 9 layers | 12 layers | |
| height between shelves | 60mm | |||
|
Power source (50/60Hz) /Rated current |
AC220V/2.3A | AC220V/3.6A | AC220V/5.5A | |
| NW/GW | 69/92jg | 86/114kg | 100/139kg | |
| Accessory | shelf | 2pcs | ||
| shelf bracket | 4pcs | |||
| Optional device | shelf, RS485 port, printer, recorder, external communication, remote control,program temperature controller, wireless message alert, U disk storage. | |||
