Constant Temperature Humidity Chamber 250 L 700 W ATOMFAIR®

Simple Constant Temperature and Humidity Chamber, 250 L

Research-grade laboratory product

Product Overview

Simple Constant Temperature and Humidity Chamber, 250 L is a simple constant temperature and humidity chamber built for routine culture, basic stability work, packaging tests and humidity-conditioned laboratory holding tasks. This configuration provides 250 l chamber volume, With humidification: 15 to 45 C; without humidification: 10 to 45 C, 60%rh to 85%rh humidity control, stainless-steel chamber interior and temperature and humidity controller with digital display for stable day-to-day laboratory operation.

This simple family provides a more basic humidity-chamber platform with fluorine-free design, mirror stainless-steel inner chamber, adjustable shelf spacing, side test-port access and imported compressor plus circulation fan components. The chamber combines imported compressor and circulation-fan system with humidity sensor with microcomputer temperature-humidity control, 3 shelves and an interior size of 600 x 500 x 830 mm, supporting incubation, cultivation, climate simulation or conditioned test work where repeatable environmental control is important.

This range is suitable where a laboratory needs humidity control for routine tasks but prefers a simpler chamber platform and accepts a wider humidity fluctuation band than higher-grade families. Installation planning can be based on the external size of 750 x 900 x 1580 mm and the stated power requirement of 700 W. Optional functions such as independent over-temperature controller; embedded printer; wireless alarm system; rs232/485 communication interface and software; communication interface and embedded printer are alternative options that should be selected according to the required configuration allow the unit to be adapted for alarm notification, data output, programmable operation, atmosphere support or other application-specific requirements.

Technical Specifications

Parameter	Specification / Available Values
Atomfair Model	AF-LHS0250
Manufacturer Model	LHS-250SC
Capacity	250 L
Temperature Control Range	With humidification: 15 to 45 C; without humidification: 10 to 45 C
Temperature Resolution	0.1 C
Temperature Fluctuation / Uniformity	High temperature: +/- 1 C; low temperature: +/- 2 C
Humidity Function	60%RH to 85%RH
Humidity Deviation	+/- 5%RH to 8%RH
Controller	temperature and humidity controller with digital display
Chamber Material	stainless-steel chamber interior
Power / Input	700 W
Power Supply	AC 220 V, 50 Hz
Working Environment	+5 to 35 C
Sensor Configuration	humidity sensor with microcomputer temperature-humidity control
Cooling System	imported compressor and circulation-fan system
Continuous Operation Guidance	Recommended for continuous operation schedules of not less than 180 hours under proper installation conditions
Internal Dimensions	600 x 500 x 830 mm
External Dimensions	750 x 900 x 1580 mm
Shelves / Light Decks	3 shelves
Configuration Note	This simple series is intended for routine humidity work and is not recommended for long uninterrupted operation under heavy high-humidity load
Optional Accessories and Functions	independent over-temperature controller; embedded printer; wireless alarm system; RS232/485 communication interface and software; communication interface and embedded printer are alternative options that should be selected according to the required configuration

Performance Features

Basic temperature and humidity control provides a practical chamber environment for short and medium-duration conditioned work. This supports humidity-sensitive incubation, cultivation, conditioning and stability-study applications.
Imported compressor and circulation fan support routine cooling performance while keeping chamber layout straightforward. This helps maintain dependable low-temperature performance and stable chamber recovery during repeated use.
Stainless-steel inner chamber construction with rounded corners and removable shelving improves cleaning and sample handling. This helps support repeated cleaning, chamber hygiene and long-duration laboratory use.
Side test-port access helps external measurement and validation tasks during chamber use. This supports more reliable day-to-day use in routine culture, basic stability work, packaging tests and humidity-conditioned laboratory holding tasks.
Independent over-temperature protection and optional wireless alarm functions improve unattended-running safety. This reduces operational risk by helping protect samples and notifying operators when abnormal conditions occur.
Optional printer and communication functions help preserve run data when documentation is required. This supports more reliable day-to-day use in routine culture, basic stability work, packaging tests and humidity-conditioned laboratory holding tasks.

APPLICATION SCOPE: Suitable for routine culture, basic stability work, packaging tests and humidity-conditioned laboratory holding tasks in universities, research institutes, pharmaceutical quality-control laboratories, agricultural research programs and industrial test environments that require controlled chamber operation.

HANDLING: Confirm installation space against 750 x 900 x 1580 mm, prepare the specified power supply, and keep air inlets, test ports, shelving, drain areas, doors and controller surfaces accessible for cleaning and maintenance. Every unit is shipped with reinforced packaging to reduce movement and impact during transport; keep the packed chamber upright and use suitable lifting equipment during unloading and positioning.

IMPORTANT NOTICE: Confirm the exact controller type, lighting form, humidity function, communication option and accessory package before ordering. Any displayed amount refers to the chamber body only and does not include freight. Freight is quoted separately and should be confirmed according to the delivery location and shipping method.

LABORATORY PROCUREMENT SUPPORT

For model selection, accessory matching, installation-space review, power-supply confirmation or configuration support, contact our technical sales team.

E-MAIL: inquiry@atomfair.com

Supplier: Atomfair

Brand: ATOMFAIR®

This chamber requires a dedicated power supply of AC 220 V, 50 Hz and a working environment of +5 to 35°C. Continuous operation is not recommended for heavy high-humidity loads, and accessibility for maintenance must be maintained.

Power Supply Constraint: The chamber must be connected to an AC 220 V, 50 Hz power supply delivering 700 W.
Environmental Operating Range: The ambient working environment must be maintained between +5 and 35°C.
Continuous Operation Limitation: Continuous operation schedules should not be less than 180 hours, but heavy high-humidity loads are not recommended for long uninterrupted runs.
Installation Accessibility: Air inlets, test ports, shelving, drain areas, doors, and controller surfaces must remain accessible for cleaning and maintenance.

HowTo

Begin by confirming the installation space and preparing the required power supply. Ensure the chamber remains upright during transport and use suitable lifting equipment for positioning.

Required Equipment: Suitable lifting equipment

Confirm installation space
Confirm that the installation space accommodates the external dimensions of 750 x 900 x 1580 mm.
Prepare power supply
Prepare the specified AC 220 V, 50 Hz power supply with a 700 W capacity.
Unload and position chamber
Keep the packed chamber upright and use suitable lifting equipment during unloading and positioning.
Ensure accessibility
Ensure that air inlets, test ports, shelving, drain areas, doors, and controller surfaces are accessible for cleaning and maintenance.

FAQ

Why is the temperature control range for the LHS-250SC chamber narrower when humidification is active (15–45°C) compared to dry operation (10–45°C)?

The lower temperature limit is raised to 15°C during humidification because the humidity control system requires a minimum temperature to maintain stable relative humidity levels between 60%RH and 85%RH. Without humidification, the chamber can operate down to 10°C. This trade-off is inherent to the basic humidity control architecture of this simple series, as specified in the technical data.

What continuous operation limitations should be considered for the LHS-250SC chamber under high-humidity conditions?

The LHS-250SC is recommended for continuous operation schedules of at least 180 hours under proper installation, but it is not recommended for long uninterrupted operation under heavy high-humidity load. The chamber is designed for routine humidity work and may experience performance degradation or reduced reliability if subjected to sustained high-humidity conditions beyond its intended duty cycle, as noted in the configuration guidance.

What are the electrical and environmental installation requirements for the LHS-250SC constant temperature and humidity chamber?

The chamber requires a 220 V, 50 Hz power supply with a 700 W input. The working environment must be between 5°C and 35°C. Installation space should accommodate the external dimensions of 750 x 900 x 1580 mm, with access to air inlets, test ports, and drain areas. The unit should be kept upright during transport and positioned using suitable lifting equipment, as stated in the handling instructions.

Assessment

The Simple Constant Temperature and Humidity Chamber, 250 L (AF-LE-E-LHSM-0250-SC25) provides a basic humidity-controlled environment for routine culture and stability work, with a stainless-steel interior and imported compressor, but its wider humidity fluctuation band and recommended continuous operation limit of 180 hours under proper conditions constrain its use for extended high-humidity or precision applications.

Positive

Stainless-steel interior with rounded corners: The mirror stainless-steel inner chamber with rounded corners and removable shelving facilitates cleaning and sample handling, supporting hygiene and long-duration laboratory use.
Side test-port access for external validation: The side test-port allows external measurement and validation tasks during chamber operation, improving reliability for routine culture, stability work, and packaging tests.

Trade-offs

Wider humidity fluctuation band: Humidity deviation is specified at +/-5%RH to 8%RH, which is broader than higher-grade families, limiting suitability for applications requiring tight humidity control.
Limited continuous operation under high humidity: The chamber is not recommended for long uninterrupted operation under heavy high-humidity load, and continuous operation guidance is limited to not less than 180 hours under proper installation conditions, constraining extended experimental runs.

Quality Standards & Performance Verification

Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.

To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.

Shipping & Returns

Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).