Technical Specification
Temperature Range: 10 °C Above ambient to 250 °C
Accuracy: ± 1°C
The gap between inner & outer walls of chamber is filled with high grade mineral glasswool of thickness 4”, which ensures maximum thermal efficiency.
Bullet feets are specially designed for long life under heavy load with built in screwing adjustment.
Heating system: High efficiency, low watt density S.S. tubular air heaters are used with ceramic core. The combination of airflow, instrument response and fast reacting heaters provides very accurate and straight line control of temperature. These heaters have a long life and are very reliable with no down time.
A high efficiency air circulation system is an integral part of chamber construction. This direct drive design has an extended shaft electric motor coupled to aluminum centrifugal blower wheel. This horizontal airflow across the chamber working space provides an even and accurate temperature gradient.
Printer Interface Facility for data printing directly at desired print intervals.
Electronic Timer provided which will cut off the supply after testing period with audio video alarm.
PLC Features
• PLC Based Control System Make - Allen Bradley
• PC Communication Via Ethernet
• PLC Based Scanner System
• PLC Based Safety Control System to Protect the Chambers from Overshoot and Undershoot of Temperature and Humidity
• Auto Changeover of Master Sensor In Case of Failure
• Auto Switch Over of Refrigeration System in Case of Failure
• Auto Change Over of Steam Generator in Case of Failure
• Online Monitoring on Graphic LCD 3.8" Touch Screen Display
• Alarm for Low Water Level with Reset System to Protect Steam Generator System.
• Password Protected Door Opening with Reason Master.
• Password Protected Chamber On / Off.
• Password Protected Set Value Change
• Password Protected Settable Print Frequency F or Master & Scanner
• Password Protected Restore Factory Setting
• Snooze Hooter System.
• Event Logger Facility.
• Actual Status Monitoring of Major Utilities (Sensor, Ref System, Steam Generation).
• GSM Alarm System (Mobile Alert).
PLC Based Password Protected Door Access System With Reason Master:
The door access system grant permission based on password entered.
When access is granted, the door is unlocked for a predetermined time.
This transaction is recorded through DAAS software with a reason given by user.
This record will reflect in Event Audit Trail with Date Time stamp.
PLC Based Auto changeover Master Sensor In Case Of Failure:
Sensor measures temperature and relative humidity. When controlling sensor fails, it automatically switches over to stand by sensor.
21 CFR Part 11 Compliance :
• Secured audit trail (User, Equipment, Alarm SMS, Events).
• E-Records and E-Signatures with Date and Time stamp.
• MKT (Mean Kinetic Temperature).
• Unlimited equipments connectivity.
• Real time analysis.
• Graphical Analysis.
• First time user login change password.
• Password Encryption.
• Alpha numeric password and password ageing.
• System Administration. Authorized Multilevel Username and Password.
• Data Acquisition.
• Offline analysis (in Tabular and graphical analysis).
• Open door with reason master.
• Data generated on PDF format.
• Realtime parameter setting.
• MY SQL (RDBMS) Database
• Automated Back Up Facility.
• Auto logout, account Blocking and reactivating facility.
• Log data, event and audit trail data recording.
SMS Mobile Alert ( GSM Technology )
Setting Parameters
Change Master / Scanner Print Frequency
Set Safety Temperature Higher / Lower Cut Off (°CHC1, °CHC2, °CLC1, °CLC2)
Set Safety Humidity Higher / Lower Cut Off (%RH HC1, %RH HC2, %RH Lc1)
Safety Cut Off Details
Temperature Higher Cut Off ON / OFF
Temperature Lower Cut Off ON / OFF
Humidity Higher Cut Off ON / OFF
Humidity Lower Cut Off ON / OFF
Crucial Controls
Power ON / OFF
Equipment Switch ON / OFF
Cooling ON / OFF
Humidity ON / OFF
Heating ON / OFF
Door OPEN / CLOSE
Events
Steam Generator A FAILURE / OK
Steam Generator B FAILURE / OK
High Temperature Thermostat ON / OFF
Compressor Auto / Manual Mode Setting Change
Change Compressor Cycle Time Changeover
Steam Generator Changeover Time Delay
Common Features
Scanner
For Validation purpose Temp / Humidity multipoint Scanner can be provided with printer & PC interface facility.
21 CFR PART-11 Compliance
Log data, Event data, Audit Trail data, E-Records & E-signatures, Graphical analysis & Data acquisition.
SMS Mobile Alert System
With GSM technology we will get malfunction SMS of equipment on Mobile Phones.
Insulation
Eco Friendly Poly Urethane insulation provided maximum for thermal protection & to increase rigidity for reliable daily use.
Air Circulation
A high efficiency air circulation system is an integral part of chamber construction This direct drive design has an extended shaft electric motor coupled to aluminum centrifugal blower wheel. This horizontal airflow across the chamber working space is provides an even & accurate temperature & humidity gradient
Interior Lighting
High intensity, low voltage fluorescent lights are provided. Interior light makes viewing workspace & product hassle free.
Chamber Port
60mm diameter port with silicon cork is included for passing sensor probes into the chamber workspace for validation without altering the chamber..
Control System
PLC based control system with high usage data storage facility (250 Line) which giv accurate readings of temperature & humidity. 0.1°C Resolution for temperature & 0.1% Resolution for RH High stability & reliability, Security lock for prevention of unauthorized tampering, Non Volatile memory.
Heating System
High efficiency, low watt density S.S .tubular air heaters are used with ceramic core. The combination of air flow, instrument response & fast reacting heaters provides very accurate& straight line control of temperature. These heaters have a long life & are very reliable with no down time
In-House Refrigeration Systems
A single stage refrigeration system with a hermetically sealed reciprocating compressor. Fin& tube type bullet expanded evaporator are used. High efficiency fin & tube type bullet expanded condenser coils are used. Refrigeration design protects compressors & prolongs life keeping cool during all operating condition. Refrigeration design uses less power saving operating cost.
Humidity System
Humidity is generated by water evaporation in separate compartment providing a water droplet free atmosphere, This ensures excellent uniformity & stability of the chamber environment . A reservoir water tank is provided which is fitted with float valve to maintain the water level in the steam generator tank.
Stand by Refrigeration & Humidity System
Two steam generators and two water reserve tanks are provided. In case of any system failure or breakdown the stand by system is switched over automatically without disturbing the test condition.
Safety System
PLC based Safety controller is provided having eight safety cut-off with Auto reset facility.
Lower 1 Temp cut-off (Below set point): Cut off Refrigeration system with audio visual indication.
Lower 2 Temp cut-off (Below set point): Cut off Load supply with audio visual indication
Higher 1Temp cut-off (Above set point): Cut off Heating and Humidity system with audio visual indication.
Higher 2 Temp cut-off (Above set point): Cut off Load supply with audio visual indication.
Lower 1 Humidity cut off (Below set point): audio visual indication
Higher 1 Humidity cut off (Above set point): audio visual indication
Higher 2 Humidity cut off (Above set point): Cut off Steam generator system with audio visual indication
Steam Generator Safety: Low water level cut-off, when water is not present in the steam generator tank.