Humidity Chamber 250 L, 5-80°C AF-LHI0250 ATOMFAIR®

Professional Constant Temperature and Humidity Chamber, 250 L

Research-grade laboratory product

Product Overview

Professional Constant Temperature and Humidity Chamber, 250 L is a professional constant temperature and humidity chamber built for industrial research, biotechnology testing, textile testing, material performance evaluation, product packaging studies and shelf-life or stability work. This configuration provides 250 l chamber volume, 5 to 80 C, 40%rh to 85%rh humidity control, mirror-finish stainless-steel chamber interior and microcomputer temperature and humidity controller using balancing control logic for stable day-to-day laboratory operation.

This professional family combines precise temperature-humidity control, fluorine-free refrigeration, imported compressor and circulation fan, mirror-finish stainless-steel interior, removable shelving and a side test port for chamber measurements. The chamber combines imported compressor and air-circulation system with imported humidity sensor, 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.

The I and II configurations provide different temperature and humidity bands, making the range suitable for users who need higher-control humidity testing with optional communication, alarm and program-controller upgrades. Installation planning can be based on the external size of 740 x 900 x 1580 mm and the stated power requirement of 2300 W. Optional functions such as rs232/485 communication interface and software; lcd program controller; wireless alarm system; embedded printer; 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-LHI0250
Manufacturer Model	LHS-250HC-I
Capacity	250 L
Temperature Control Range	5 to 80 C
Temperature Resolution	0.1 C
Temperature Fluctuation / Uniformity	High temperature: +/- 0.5 C; low temperature: +/- 1 C
Humidity Function	40%RH to 85%RH
Humidity Deviation	+/- 3%RH
Controller	microcomputer temperature and humidity controller using balancing control logic
Chamber Material	mirror-finish stainless-steel chamber interior
Power / Input	2300 W
Power Supply	AC 220 V, 50 Hz
Working Environment	+5 to 35 C
Sensor Configuration	imported humidity sensor
Cooling System	imported compressor and air-circulation system
Internal Dimensions	600 x 500 x 830 mm
External Dimensions	740 x 900 x 1580 mm
Shelves / Light Decks	3 shelves
Optional Accessories and Functions	RS232/485 communication interface and software; LCD program controller; wireless alarm system; embedded printer; communication interface and embedded printer are alternative options that should be selected according to the required configuration

Performance Features

Microcomputer balancing temperature-humidity control improves stability for qualification, conditioned storage and repeatable environmental testing. This supports humidity-sensitive incubation, cultivation, conditioning and stability-study applications.
Imported compressor, fan and humidity-sensor components support dependable chamber performance across long laboratory schedules. This supports humidity-sensitive incubation, cultivation, conditioning and stability-study applications.
Mirror-finish stainless-steel interior and removable shelf supports make cleaning and chamber reconfiguration easier between test programs. This helps support repeated cleaning, chamber hygiene and long-duration laboratory use.
Independent over-temperature protection helps stop the chamber and notify operators when abnormal conditions appear. This reduces operational risk by helping protect samples and notifying operators when abnormal conditions occur.
Side test-port access supports external probes and measurement tasks during chamber verification or method development. This supports more reliable day-to-day use in industrial research, biotechnology testing, textile testing, material performance evaluation, product packaging studies and shelf-life or stability work.
Optional program control, communication, printer and wireless-alarm functions help document and supervise temperature-humidity studies. This supports humidity-sensitive incubation, cultivation, conditioning and stability-study applications.

APPLICATION SCOPE: Suitable for industrial research, biotechnology testing, textile testing, material performance evaluation, product packaging studies and shelf-life or stability work 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 740 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 controlled ambient environment of +5 to 35 °C and a dedicated AC 220 V, 50 Hz power supply rated at 2300 W. The unit must be installed with adequate clearance for air circulation and access to the side test port, drain, and controller surfaces.

Environmental and Power Requirements: Operate the chamber only within the specified working environment of +5 to 35 °C and connect it to a power supply matching AC 220 V, 50 Hz with a 2300 W capacity.
Installation and Clearance: Position the chamber on a level surface with sufficient space around the external dimensions of 740 x 900 x 1580 mm to keep air inlets, test ports, and the door accessible.
Over-Temperature Protection: The independent over-temperature protection system will halt operation and alert the operator if abnormal temperature conditions occur, so verify its function periodically.

HowTo

This procedure covers initial placement, power connection, and basic operational checks for the 250 L chamber. Follow these steps to ensure safe and reliable environmental testing.

Required Equipment: Suitable lifting equipment, Leveling tool (e.g., spirit level)

Position the chamber
Place the chamber upright on a level, stable surface with at least the recommended clearance around the external dimensions of 740 x 900 x 1580 mm.
Connect to power
Connect the chamber to a dedicated AC 220 V, 50 Hz power outlet that can supply the required 2300 W load.
Set temperature and humidity
Set the desired temperature (5 to 80 °C) and humidity (40% to 85% RH) using the microcomputer controller.
Verify operation
Allow the chamber to stabilize and verify that the displayed temperature and humidity match the set points within the specified tolerances.
Load samples
Place samples on the removable shelves, ensuring they do not obstruct the air circulation or the side test port.

FAQ

What is the temperature uniformity specification at low versus high temperature setpoints?

The chamber provides ±0.5°C uniformity at high temperature (above ambient) and ±1°C uniformity at low temperature (below ambient). This difference is specified in the technical data: high temperature fluctuation/uniformity is ±0.5°C, while low temperature is ±1°C, reflecting the increased challenge of maintaining precise uniformity under cooling conditions.

Can this humidity chamber be integrated with external data logging or monitoring systems?

Yes, the chamber supports optional RS232/485 communication interface and software, an embedded printer, and a wireless alarm system for remote monitoring and data output. Additionally, the side test port allows external probes to be inserted for measurement verification during method development, enabling integration with laboratory data management workflows.

What are the power supply and installation space requirements for this 250 L chamber?

The chamber requires AC 220 V, 50 Hz power with a 2300 W input. External dimensions are 740 x 900 x 1580 mm (width x depth x height), so installation space must accommodate these dimensions while keeping air inlets, test ports, shelving, drain areas, doors, and controller surfaces accessible for cleaning and maintenance. A suitable power supply and reinforced packaging for upright transport are also advised.

Assessment

This 250 L constant temperature and humidity chamber provides precise environmental control from 5 to 80 °C and 40% to 85% RH using a microcomputer balancing controller and imported compressor, making it suitable for stability testing and material conditioning in laboratory settings. The mirror-finish stainless-steel interior, side test port, and optional communication interfaces support reproducible test conditions and external monitoring, though the limited humidity range and specific power requirements must be accounted for during installation planning.

Positive

Balancing temperature-humidity control for stability: The microcomputer balancing control logic improves temperature and humidity stability, which is critical for qualification, conditioned storage, and repeatable environmental testing protocols.
Imported compressor and humidity sensor reliability: Use of an imported compressor, circulation fan, and humidity sensor supports dependable chamber performance over extended laboratory schedules, reducing downtime and measurement drift.

Trade-offs

Limited humidity control range: The humidity control range is restricted to 40%RH to 85%RH, which may not accommodate low-humidity testing or high-humidity protocols above 85%RH without additional equipment.
Power and installation constraints: The unit requires a 2300 W, AC 220 V, 50 Hz supply and has external dimensions of 740 x 900 x 1580 mm, necessitating dedicated power provisioning and adequate lab floor space for proper installation and maintenance access.

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).