Temperature & Humidity Chamber 250 L with Printer ATOMFAIR®

Professional Constant Temperature and Humidity Chamber, 250 L,with Printer

Research-grade laboratory product

Product Overview

Professional Constant Temperature and Humidity Chamber, 250 L,with Printer 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, 10 to 70 C, 40%rh to 95%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-LH20250
Manufacturer Model	LHS-250HC-II
Capacity	250 L
Temperature Control Range	10 to 70 C
Temperature Resolution	0.1 C
Temperature Fluctuation / Uniformity	High temperature: +/- 0.5 C; low temperature: +/- 1 C
Humidity Function	40%RH to 95%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®

The chamber must be operated within a specified ambient temperature range and connected to a dedicated power supply of the correct voltage and capacity. The over-temperature protection system and proper installation with accessible service points are mandatory for safe and reliable operation.

Power Supply Requirement: Connect the chamber to a dedicated AC 220 V, 50 Hz power supply capable of delivering 2300 W to avoid electrical overload.
Ambient Temperature Limit: Operate the chamber only in an ambient environment between +5 and 35 °C to ensure stable temperature and humidity control.
Installation Clearance: Maintain adequate clearance around the chamber for air circulation and access to the side test port, drain, and controller.
Over-Temperature Protection Check: Verify the independent over-temperature protection system is functional before each use to prevent sample damage or fire risk.
Humidity Sensor Calibration: Calibrate the imported humidity sensor periodically according to the manufacturer's instructions to maintain humidity accuracy within ±3% RH.

HowTo

Follow these steps to properly unpack, install, and begin operation of the chamber while ensuring safety and control accuracy. The steps cover initial setup, parameter configuration, and routine verification.

Required Equipment: Lifting equipment (e.g., forklift or pallet jack), Dedicated AC power outlet (220 V, 50 Hz, 2300 W capacity)

Unpack and Position Chamber
Unpack the chamber and use lifting equipment to position it upright on a level surface with adequate clearance for air circulation and service access.
Connect Power Supply
Connect the chamber to the specified AC power supply using a dedicated outlet, and ensure the power cord is securely plugged in.
Set Temperature and Humidity
Set the desired temperature and humidity values on the microcomputer controller, and press the start button to begin conditioning.
Test Over-Temperature Protection
Test the over-temperature protection system by initiating a simulated alarm or checking the status indicator to confirm it is functional.
Load Samples
Place samples onto the removable shelves, ensuring they do not obstruct the air circulation or block the side test port.
Monitor Stability
Close the chamber door and monitor the displayed temperature and humidity readings for stability before starting the test program.
Perform Routine Maintenance
Perform routine maintenance after each use by cleaning the stainless steel interior with a non-abrasive cleaner and checking the drain for blockages.

FAQ

What is the temperature uniformity specification for the LHS-250HC-II at low versus high temperature setpoints?

The chamber achieves ±0.5°C uniformity at high temperature and ±1.0°C at low temperature, as stated in the technical specifications. This difference is typical for environmental chambers and should be considered when selecting setpoints for sensitive tests.

Can the Atomfair LHS-250HC-II be integrated with external data acquisition systems for real-time monitoring?

Yes, the chamber offers optional RS232/485 communication interface and software, as well as an embedded printer for data output. These options allow integration with external monitoring and logging systems, though they must be specified at the time of ordering.

What are the installation requirements for the 250L constant temperature and humidity chamber regarding power supply and space?

The chamber requires a 2300W power supply at AC 220V, 50Hz, and operates in a working environment of 5-35°C. The external dimensions are 740 x 900 x 1580 mm, so sufficient clearance for air circulation and access to the side test port, drain, and controller should be planned.

Assessment

The 250 L constant temperature and humidity chamber (AF-LE-E-LHPR-0250-2250) provides microcomputer-based balancing control for stable humidity from 40% to 95%RH and temperature from 10°C to 70°C, with an imported compressor and humidity sensor supporting long-term reliability in biotech, materials, and stability testing applications.

Positive

Balancing humidity-temperature control: Microcomputer balancing control logic improves stability for qualification, conditioned storage, and repeatable environmental testing, reducing drift in humidity-sensitive incubation and stability studies.
Imported compressor and sensor: The use of an imported compressor, circulation fan, and humidity sensor supports dependable long-term performance and consistent humidity readout across extended laboratory schedules.

Trade-offs

Humidity range limited to 40-95%RH: The chamber cannot achieve humidity below 40%RH, restricting its use in applications requiring very low humidity conditions such as desiccation testing or dry storage.
Specific power and environment requirements: The unit requires a 2300 W, AC 220 V, 50 Hz supply and an ambient operating range of +5°C to 35°C, which may limit installation flexibility in labs with different electrical standards or uncontrolled temperature environments.

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).