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Temperature（&Humidity）Chamber www.hongzhan.com.hk

About

Reliable core technology

Our goal in the development of the Platinous has always been to achieve optimum ease of operation, safety and environmental friendliness in addition to offering outstanding performance and reliability. The Platinous K Series thus embodies a design concept featuring energy conservation, use of HFC, improved energy-saving and maintainability as well as better recycling of materials after disposal in comparison to the conventional chambers.

Meeting International Standards

All our products are developed to meet main International standards such as IEC, MIL, JIS, etc.

Platinous design rewarded

The Platinous K Series received the 19th Excellent Energy-Saving Equipment Award in 1985 from the China Machinery Federation.
（PL-2K （H）, 3K （H） and 4K （H））

Specifications

Model	Temp. & Humid. range	Inside / Outside dimensions （mm）	Instrumentation
HPH-1K	+10 to +100ºC/ 60 to 98%rh （+50 to +212F）	W500 x H600 x D400 W910 x H1440 x D773	Q8-901 instrumentation
HPH-2K		W500 x H750 x D600 W910 x H1590 x D973
HPH-3K		W600 x H850 x D800 W1010 x H1690 x D1173
HPH-4K		W1000 x H1000 x D800 W1410 x H1840 x D1173
HPR-1K[H]	-20 to +100ºC [+150ºC] / 20 to 98%rh （-4 to +212F [+302F]）	W500 x H600 x D400 W910 x H1440 x D773[795]	Q8-901 instrumentation
HPR-2K[H]		W500 x H750 x D600 W910 x H1590 x D973[995]
HPR-3K[H]		W600 x H850 x D800 W1010 x H1690 x D1173[1195]
HPR-4K[H]		W1000 x H1000 x D800 W1410 x H1840 x D1173[1195]
HPL-1K[H]	-40 to +100ºC [+150ºC] / 20 to 98%rh （-40 to +212F [+302F]）	W500 x H600 x D400 W910 x H1440 x D773[795]	Q8-901 instrumentation
HPL-2K[H]		W500 x H750 x D600 W910 x H1590 x D973[995]
HPL-3K[H]		W600 x H850 x D800 W1010 x H1690 x D1173[1195]
HPL-4K[H]		W1000 x H1000 x D800 W1410 x H1840 x D1173[1195]
HPSL-2K[H]	-70 to +100ºC [+150ºC] / 20 to 98%rh （-94 to +212F [+302F]）	W600 x H850 x D600 W1010 x H1690 x D1173	Q8-901 instrumentation
HPSL-4K[H]	-70 to +100ºC [+150ºC] / 20 to 98%rh （-94 to +212F [+302F]）	W1000 x H1000 x D800 W1410 x H1855 x D1493	Q8-901 instrumentation
HPU-1K[H]	-40 to +100ºC [+150ºC] （-40 to +212F [+302F]）	W500 x H600 x D400 W910 x H1440 x D773[795]	Q8-901 instrumentation
HPU-2K[H]		W500 x H750 x D600 W910 x H1590 x D973[995]
HPU-3K[H]		W600 x H850 x D800 W1010 x H1690 x D1173[1195]
HPU-4K[H]		W1000 x H1000 x D800 W1410 x H1840 x D1173[1195]
HPG-2K[H]	-70 to +100ºC [+150ºC] （-94 to +212F [+302F]）	W600 x H850 x D600 W1010 x H1690 x D1173	Q8-901 instrumentation
HPG-4K[H]	-70 to +100ºC [+150ºC] （-94 to +212F [+302F]）	W1000 x H1000 x D800 W1410 x H1855 x D1493	Q8-901 instrumentation

Features

Highly accurate temperature and humidity control over an extended range
The refrigeration system, equipped with an electronic auto-expansion valve, achieves high-precision single step control of the temperature and humidity from +10ºC for the temperature, and from 20%rh for the humidity （from +70ºC to +85ºC）.
Prevention of condensed water droplets from the wick pan
The arm and drain of the wick pan are integrated to prevent any condensation contained in the wick pan to drip. The wick pan is featuring an automatic water feed system which reduces risks of spatters resulting from pressure fluctuations.
Space-saving vertical exhaust system （air-cooling system）
Heat from the refrigerator is vertically expelled through a port mounted on the ceiling, which allows saving space usually required behind the equipment.
Large viewing window
Cartridge tank water supply system
Possibility to choose between T- or P-instrumentation according to customer needs

Temperature and humidity control range
（At ambient temperature +23ºC, with no specimen）

*Continuous humidity operation is limited to +40C range or below due to frosting on the refrigerator.
P-instrumentation

Environmentally-friendly design

Refrigeration system reducing power consumption by 30% We have developed an original refrigeration capacity control system which uses a rotary compressor, inverter control and automatic electronic expansion valve to adjust the refrigerant flow rate. With this system, power consumption can be reduced by 67% in comparison to our previous system, thus providing greater energy savings.	Power consumption comparison （kwh）（with previous model: S Series） Conditions: At +23ºC ambient temp. Power supply: 200V C Frequency: 60Hz
Easy recycling Plastic molded components are labeled and easily detachable to make recycling easier for future disposal of the equipment.	Recyclable resin
Use of ODP （Ozone Depletion Potential） zero HFC to protect the environment The refrigerant used for the refrigerator is HFC-404A, which causes no damages to the ozone layer. （Compliance with environment protection measures of the Montreal Protocol）