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Programmable Temperature & Humidity Test Chamber THH-256 – 256L Environmental Stability Chamber with PID Control
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Programmable Temperature & Humidity Test Chamber THH-256 – 256L Environmental Stability Chamber with PID Control

Temperature Range: 0–65°C (no humidification), 10–65°C (with humidification)
Humidity Range: 35%–90% RH, ±3% fluctuation
Internal Dimensions (W×D×H): 500×508×1000 mm
External Dimensions (W×D×H): 668×790×1660 mm
Volume: 256 L
Temperature Accuracy: ±0.5°C; Humidity Accuracy: ±3% RH
Features: PID control, 30-segment programmable LCD, automatic water supply, dual evaporators with auto defrost, Honeywell humidity sensor
 
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  • THH-256

  • TOP

Product advantages: 


1. Precise control
· PID algorithm realizes accurate control of temperature and humidity to prevent overshoot oftemperature and humidity
2. Safe and reliable
· Comply with DIN 12880 standard, power-off protection, overload protection, temperaturecontrol three-evel protection
3. Convenient operation
· Program controlled operation, repeated step and step operation
· Fixed value operation, fixed time operation, automatic stop

Product features:
· Convenient operation, constant value operation, regular operation and automatic stop
· Auxiliary menu to realize over rise alam, deviation corection and menu locking
· The air inlet grille can be opened directly to facilitate the cleaning of the condenser
· The double evaporators switch automatically, without affecting frost, and have littledisturbance to the temperature in the box.
· Loop self diagnosis, sensor fault alarm, overtemperature and humidity alarm, water fillingfault alamm, dry burning alarm
· Automatic water supply system, built-in water storage tank in the box, automatic waterreplenishment after water shortage
· The independent digital display temperature limiter is safer to use
· LCD 30 segment program control, repeated step and step operation
· Turbine centrifugal forced air supply, more uniform temperature
· Power off protection, parameter memory , incoming call recovery
· Hidden themal humidification system, with unifomm humidity
· Universal casters at the bottom make it easy to move the box
· Automatic frost, avoiding evaporator icing fault Imported Honeywell humidity sensor
· Special function keys realize temperature setting


Technical data


Model

THH-256

Temperature and         humidity control mode

30 segment program control

Type

Forced convection

Temperature and        humidity setting mode

Touch six buttons to dispiay on LCD

Temperature range

No humidification:0-65ºC humidification:10-65ºC

Timer

0-99.9h*30(with timed waiting function)

Temperature resolution

0.1ºC

Temperature sensor

Pt100

Temperature fluctuation

±0.5ºC

Humidity sensor

Honeywell humidity sensor

Temperature distribution accuracy

±0.8ºC(test point 37ºC)

Internal dimension    (width*depth*height)

500*508*1000mm

Humidity range

35%-90%RH

External dimension   (width*depth*height)

668*790*1660mm

Humidity fluctuation

±3%

Outer package size   (width*depth*height)

804*944*1778mm

Liner material

SUS304

Volume

256L

Shell material

Cold plate powder
spraying

Diaphragm bearing


15KG

Thermal insulation material

Rubber sponge

Diaphragm spacing

35mm

Heater material

Stainless steel heating pipe

Voltage

AC220V

Humidificatin power


400W

Power frequency

50/60Hz

Cryogen

R134A

Maximum power

1600W

Defrost

Non inductive switching of double evaporators

Net weight kg

130kg

Humidity control mode

Automatic control,hidden heat humidification

Gross weight kg

180kg

Test hole

Inner diameter 52mm

Number of diaphragms

2

Water adding method

Automatic

Number of diaphragm frames

4

External power supply

1 external five hole
socker

Container loading (20'/40'/40'h)

14/28/28




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ZHEJIANG TOP INSTRUMENT CO.,LTD., as a subsidiary of TOP Cloud agri, is a high-tech enterprise specializing in the R&D, manufacturing, sales for laboratory equipments, and provision of comprehensive laboratory solutions.

CONTACT US

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 +86-571-86059660
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