Stability Chamber

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Introduction

A stability chamber is a controlled environmental testing system designed to simulate precise conditions by regulating two critical parameters: temperature and relative humidity. These chambers are extensively used across pharmaceutical industries to evaluate the stability, shelf-life, and degradation patterns of drugs, formulations, and related products. By creating consistent and repeatable environmental settings, stability chambers ensure compliance with ICH guidelines and help manufacturers determine how products react to various climatic conditions.

Based on the specific testing requirements, stability chambers can be categorized into:

Environmental Stability Chambers
Temperature–Humidity Chambers
Accelerated Stability Test Chambers
Photostability Chambers
Cold/Low-Temperature Chambers

Each type is engineered to provide reliable, long-term performance and accurate data essential for regulatory submissions and product quality assurance.

Construction

CNC-Fabricated Structure

Built using fully automatic CNC machinery to ensure precision, rigidity, and consistent build quality.

High-Grade Stainless-Steel Interior

Insulated chamber interior constructed from premium SS with either mirror or dull finish for superior hygiene and corrosion resistance.

Durable Exterior Options

Available in Stainless Steel or GI Powder-Coated finish, offering durability and a professional appearance.

Illuminated Observation Area

Interior lighting combined with a full-view glass door allows easy monitoring of samples without disturbing chamber conditions.

Heavy-Duty Door Mechanism

Robust hinges and positive-seal latches ensure uniform sealing, minimal leakage, and long operational life.

Adjustable Stainless-Steel Shelves

Flexible shelving system to accommodate various sample sizes and loading patterns.

Specifications

A stability chamber is engineered to operate within strict tolerance limits to maintain consistent and reliable environmental conditions.

Temperature Uniformity: ±2–3°C
Relative Humidity Variation: ±2–3% RH These tight tolerances ensure accurate simulation of real-world storage conditions and compliance with ICH stability testing requirements.

Full-View Glass Door

The chamber features a multi-pane viewing door designed to prevent condensation and provide a clear view of the test samples. Both the inner and outer doors are fitted with high-quality silicone rubber gaskets, ensuring complete perimeter sealing to maintain internal stability.

Optional Features

Stand-by Humidity System Provides uninterrupted humidity control during primary system downtime.

Stand-by Refrigeration System Ensures continuous temperature regulation and prevents testing interruptions.

Data Logger / Scanner For precise monitoring, recording, and validation of chamber conditions.

GSM Alert System Sends SMS alerts in case of parameter deviations or alarms.

Security Alarm System Notifies operators of door openings, system faults, or critical condition changes.

Features

Heavy-Duty Stainless-Steel Construction Ensures durability, hygiene, and long service life.

Illuminated Interior Provides clear visibility of samples without disturbing operating conditions.

Condensation-Free Viewing Door Multi-pane design keeps the glass clear for unobstructed observation.

Electro-Polished Stainless-Steel Trays Heavy-duty perforated trays made from solid stainless steel; easy to clean, removable, and height-adjustable.

Sizes

Models	Capacity (in Ltrs.)	Dimensions (W X D X H)		Max No. of Trays
		Internal Width X Depth X Height (mm)	External Width X Depth X Height (mm)
KGOS-90	90 LTR	450 X 450 X 450	600 X 1030 X 1060	2
KGOS-227	227 LTR	600 X 630 X 600	750 X 1210 X 1210	2
KGOS-325	325 LTR	600 X 630 X 900	750 X 1210 X 1510	5
KGOS-400	400 LTR	600 X 630 X 1060	750 X 1210 X 1670	6
KGOS-500	500 LTR	600 X 630 X 1330	750 X 1210 X 1940	8
KGOS-600	600 LTR	800 X 800 X 950	950 X 1380 X 1560	5
KGOS-800	800 LTR	800 X 800 X 1250	950 X 1380 X 1860	7
KGOS-1000	1000 LTR	800 X 800 X 1570	950 X 1380 X 2180	10

PID Controller Based

Microprocessor-based PID Controller with Auto-Tuning Ensures highly accurate temperature and humidity control with fast stabilization and minimal deviation.

High-Accuracy Sensing Equipped with Rotronic 4–20 mA sensors for superior precision, along with Pt100 temperature sensors and direct %RH electronic capacitive humidity measurement.

Comprehensive Data Recording System Integrated data storage unit allows recording of Date, Time, Set Value (SV), Process Value (PV), Door Status (Open/Close), and Power On/Off events. Data can be printed directly or transferred to software for analysis.

Safety & Protection Features

Temperature & humidity high/low alarms

Very high/low temperature cut-off for product protection

Low water level cut-off

Auto changeover between RH generator & cooling system for uninterrupted operation

Power failure alarm

Continuous door-open alarm

Password-protected door access for unauthorized entry prevention

Extreme temperature & RH cut-off system for equipment safety

Construction & Sealing

High-quality door hinges and latches designed for long-term durability and perfect uniform sealing.

Inner & outer doors fully sealed using premium silicone rubber gaskets to maintain chamber stability and efficiency.

21 CFR Part-11 Compliant Software

Secure log data, event data, audit trails, electronic records, and e-signatures

Real-time and historical graphical analysis

Robust data acquisition for regulatory-compliant documentation

Trays

Heavy-duty, solid electro-polished stainless steel wire mesh trays

Easy to clean, hygienic, and corrosion-resistant

Adjustable to accommodate various sample sizes

Designed for time-saving and effortless maintenance

HMI + PLC CONTROLLER BASED

7″ HMI with TFT LCD Touchscreen Intuitive operator interface with password protection for all parameters. Displays real-time status of sensors, heating/cooling systems, and the humidity system.

High-Accuracy Rotronic 4–20 mA Sensors Ensures precise and reliable temperature and humidity measurement.

Advanced PLC-Based Control

Auto-tuning PID for highly accurate temperature & humidity control
PLC-controlled automatic changeover of standby systems for uninterrupted operation

Data Storage & Connectivity

Data transfer via Ethernet for web-based remote monitoring
Supports online access to Date, Time, SV, PV, Door Open/Close, Power On/Off events
USB data transfer supported for offline backup

Safety & Alert System

Temperature & humidity high/low alarms

Temperature & humidity high/low cut-off protection

Low water level cut-off

Automatic changeover of standby systems

Password-protected door access

Temperature & RH deviation alarms

Power failure alarm

Continuous door-open alert

Extreme temperature & RH cut-off for equipment & product safety

Construction & Sealing

Heavy-duty door hinges and latches for long-term reliability and precise sealing.

Inner & outer doors sealed using premium silicone rubber gaskets for maximum integrity and stable chamber conditions.

21 CFR Part 11 Compliant Software

Secure log data, event data, and audit trail

Fully validated electronic records & e-signatures

Comprehensive graphical analysis and data acquisition

Designed for regulated environments and compliant documentation

Technical Specification

Temperature Range	20 ℃ to 60 ℃
Humidity Range	40%RH to 95%RH
Accuracy	±0.2 ℃ & ±2.0% RH
Uniformity	±2.0 ℃ & ±3.0% RH
Test Suitable For	25 ℃ & 60% RH, 30 ℃ & 65% RH 40 ℃ & 75% RH, 30 ℃ & 75% RH
Specially designed chambers for Low Humidity conditions such as 25 ℃ 40% RH, 40 ℃ 25% RH, 30 ℃ 35% RH
Control System	PLC or PID Based

Material of Construction

Models	Material Of Construction
	Interior	Exterior
STD	S.S.304 Dull Finish	G.I Powder Coated
GMP	S.S.304 Dull Finish	S.S.304 Dull Finish
CGMP	S.S.316 Dull Finish	S.S.304 Dull Finish