Dual Chamber Refrigerator Cum Deep Freezer – Gmp – Hmi/plc – 121 L

Applications

• Designed for biological sample storage in pharmaceutical, microbiology, biotechnology, chemical industries, and research laboratories.
• Twin-chamber configuration combines deep-freezer and laboratory-refrigerator functions in a single standalone instrument.

Construction & Chamber Configuration

1. Standalone twin-chamber Refrigerator Cum Deep Freezer comprising upper and lower chambers.
2. Upper Chamber: Deep Freezer.
3. Lower Chamber: Laboratory Refrigerator.
4. Both chambers are equipped with separate PLC controllers and Touch Screen HMI displays.
5. Interior of both chambers fabricated from Mirror-Polished Stainless Steel SS-316 grade.
6. Exterior body fabricated from Stainless Steel SS-304 grade.
7. Both chambers provided with 65–75 mm PUF insulation on all sides to minimize thermal leakage.
8. Both chambers fitted with heavy-duty stainless-steel locks and door hinges with spring-roller mechanism.
9. Sponge-type silicone gaskets provided for airtight door sealing and prevention of temperature leakage.
10. LED illumination with door switch provided in both chambers.
11. Adjustable shelves provided for storing test samples and glassware of varying dimensions.
12. Entire unit mounted on castor wheels for easy movement.
13. Internal electrical wiring conforms to international norms.
14. Aesthetic external finish.
15. Supplied with pilot indicating lamps, 2 m power cord and power plug.
16. Power supply: 220/230 V, 50 Hz, Single Phase AC.
17. Supplied with IQ, OQ and DQ documentation, where applicable/selected.

Air Circulation – Refrigerator Chamber

• Lower laboratory refrigerator chamber is equipped with a quiet-running forced-air circulation blower for uniform temperature distribution.
• Air is circulated vertically downward and recirculated throughout the chamber.
• Blower motor is located at the rear of the unit and protected with a safety cover.

Inner Door – Refrigerator Chamber

• Refrigerator chamber is fitted with a full-size polycarbonate sheet inner door for sample inspection without significantly affecting chamber temperature.
• Polycarbonate door characteristics:
• Unbreakable
• Scratch-resistant
• High-temperature resistant
• Robust
• Airtight
• Transparent

Sample Trays

1. Trays for both refrigerator and deep-freezer chambers are manufactured from strong stainless-steel sheet.
2. Trays are designed to withstand heavy loads of test specimens.
3. Test specimens should be equally distributed among the trays.
4. Tray construction facilitates better air circulation.
5. Distance between trays: 15–20 cm.

Advanced Control & Monitoring Features

1. Touch Screen HMI Controller with PLC System.
2. Separate PLC/HMI control for both chambers.
3. Magnetic door-lock mechanism for both chambers.
4. Password-protected door access system.
5. 21 CFR Part 11 compliant PC software.
6. Audit trail generation.
7. Auto-resume function after power failure.
8. Provision for GSM module/mobile alert system for parameter deviation; available at extra cost.
9. Provision for built-in data logger/uniformity mapping module; available at extra cost.

21 CFR Part 11 Compliance Software Features

• Multi-chamber data acquisition.
• Graphical data analysis as per 21 CFR Part 11 compliance guidelines.
• File encryption facility.
• Secure login facility.
• Password-protected system access controlled by system supervisor.
• User access limitation.
• Module access limitation.
• Password expiration.
• User ID and password authentication.
• Access-failure lockout.
• System access logs.
• System audit-trail reports.
• System input/output logs.
• Mean Kinetic Temperature (MKT) calculation.
• User activity logging, including login/logout time and changes made to software settings.
• Audit-trail reports.
• Gap-free records.
• Scheduled reports via email.
• Real-time environmental monitoring.
• Flexible alarm management.
• Consistent alarm acknowledgement.
• High-security, tamper-proof data management.
• Data-loss protection.

Safety Features

• Electrical overload protection with 10 A fuse.
• Magnetic door-lock mechanism.
• Password-protected access.
• Auto-resume after power failure.
• Additional over-temperature protection with audio alarm available as an optional accessory.

Pre-Installation Mandatory Requirements

1. Room temperature should preferably be maintained at 25°C using air conditioning, or the equipment should be installed in a well-ventilated room with an exhaust fan.
2. Surrounding/ambient temperature should not exceed 30°C.
3. A stabilized electrical supply of 230 V, 50 Hz, 20 A AC must be available for reliable and error-free operation.
4. Use of a servo-controlled voltage stabilizer is recommended.
5. Guarantee may be void in case of non-compliance with the specified pre-installation requirements.

Optional Accessories – Extra Cost

1. Refrigerator Validation.
2. Freezer Validation.
3. Over-Temperature Protection System with Audio Alarm.
4. IQ, OQ & DQ Documentation.
5. GSM Module for remote/mobile alerts.
6. Data Logger – 4 Channel – Uniformity Mapping Module.