Deep Freezer
Model No : SRL / ULVF-04-VI
Applications :
Equipment specially designed & suitable for Electronic Industry, Space Programs Research, Research Labs, Defence Labs, Blood Banks, Biological Specimens, Serum, Vaccines, Research Laboratories Medical Specimens, Clinical Samples, Industrial research etc, for testing under extreme low temp. conditions.
Ecocentric System :
Chamber runs on the basis of Dewpoint control. Less deviations during short-term door opening & power failure. Less utility area Increased storage area. Low operating cost. Minimum power & water consumption. Reduced deviations. Less breakdowns due to standby refrigeration & humidification system. Due to PLC HMI & controlling through microprocessor based PID Temp. & RH operations the on time of both Temp. & RH system is reduced & efficiency of this system is increased with reduced energy consumption.
Temperature Range :
-50°C to -86°C
Construction :
MOC of the Chamber will be: Double walled Chamber with Inner of
stainless steel 304 grade & outer of CRCA duly powder coated,
PUF Insulation in between two walls.
(I) Double door, inner door of glass with frame & silicon gasket sealing,
outer door metallic with PUF insulation.
(ii) The unit will be made of double walled leak proof metal door with lock,
with a provision of opening door from inside.
(iii) Forced air circulation for uniform temperature.
(iv) Lockable & Movable PU wheels for easy movement.
Insulation of Walls, ceiling and floor : 80mm thick puff panels with
puff in-place density of minimum of 1kg per cubic foot. Exterior metal
surface of insulation puff panels or its equivalent shall be of minimum 19
gauge embossed white stainless steel or its equivalent. Interior metal
surface of insulation puff panels or its equivalent shall be of minimum 19
gauge stainless steel with baked white enamel finish or its equivalent.
Exterior and interior metal surface shall not have metal-to- metal bonding.
Door : Flush type doors of metal surfaces (as per above specification of
metal) with proper puff insulation of above mentioned standard or its
equivalent. Doors shall have magnetic snap-in perimeter gasket or its
equivalent, self-closing cam lift gravity hinges or its equivalent, a posi-seal
door closure or its equivalent. Door shall have key lockable latch handle.
Doorjambs shall be made fiberglass reinforced plastic or any other suitable
material compatible with constructed door
Compartment & Shelving :
2-6 Compartments with shelves at adjustable heights or
individual compartments with door for each compartment.
Cabinet & Door Seals : Outer door to be fitted with low
temperature seals. Alarm for temp. deviation failure, open door,
clean filter.
Salient Features : [Optional]
First time in India developed by SR Lab Instruments.
Standby Refrigeration, Standby Humidification & Standby safety
controller with auto changeover, In case of failure of the main
system, To run the system for a longer with uninterrupted
operation.
Also USFDA approved 21 CFR compliance software, where in
case of temp. & RH fluctuation, SMS & Email alert shall be sent
to registered user nos and minute details of operation of the
chamber can be downloaded weekly, Monthly or Quarterly.
Controller :
Standard PID: Provides Precise Temperature, Maintain Uniform
And Accurate Growth Environment, Timer, Alarm, Auto-Tuning
And Auto Start Stop Function. Technical Design and Construction
Silent Fan Motor to Maintain Uniform Temperature Over
Temperature and Current Protection Capability Ensure User Safety,
Adjustable Sliding Rack, Alert Unexpected Interruption Of Electrical
Power Or Unauthorized Change.
Optional : [PLC with HMI touch screen]
PLC Control system with touch screen display & HMI for data
Storage, data logger reading & audit trail, Door access & SMS
records, Email alert. Data Logger 1 temp + 1 RH. Data Logger with
LCD display window capable to store non volatile data memory up
to 5000 readings with audit trail facility complies 21 CFR Part 11.
Change over to stand by system automatically as per schedule or
on detecting fault with current system Temperature & Humidity
overshoot and under shoot protection Mobile Alarm system, Door
Access, system setting reset , Graph, SMS, Email alert, etc. In built
PC port for connectivity for PC base operation of data management.
Refrigeration system : (Air Cooled)
Emerson / Danfoss / Tecumseh: make compressors, 2 stage cooling system with Cascade system for ULTRA LOW TEMP. Range & Single stage system for Humidity Control. All accessories such as HPCO/LPCO, Oil Separators, Dryers, Relays, OLP etc. of Danfoss/Tecumseh Emerson Make. CFC free refrigerant to be used to comply with the New Environmental Regulation. Will have suitable tonnage compressor for maintain temperature with lights on. Will have hermetically sealed condensing unit compressor coupled with Evaporation coil and condenser, safe guarded by time delay circuit. Cabinet shall be supplied with air-cooled condensing unit with extended compressor life and close temperature control. Cooling system will be split type to place condenser unit in a ventilated area to avoid hot air in growth chamber. Cooled air shall be delivered in such a way to reduce or eliminate condensation within media dishes and to provide maximum uniformity In different research vessels. This may be through silent and durable fan motors or through any kind of advanced air diffusers. Air Cooled Condenser with solenoid & LP to pass hot gas to the chamber for uniformity & long life of compressor for continuous usage. Phenolic coating for cooling & condensing coils (All weather proof).
Optional Accessories :
Ln2 Backup with regulators, cylinders operated directly
from PLC/PID automatically when the temp. rises above the set point of 5°C
Racks, Cryo gloves, Cryo boxes
Cryo boxes to be hold 2ml vials.
Voltage stabilizer of 5 KVA.
UPS backup with batteries.
Safety Features :
2 minute compressor “on” delay timer to safeguard the compressor.
Compressors overload relay protector. Electronic low water level cut
off device to cut off the supply to boiler heater in case of low water
level. Safety Temp. Controller. MCB for mains.
(I) Unit will be provided with safety devices for temperature and
humidity overshoot in case of malfunction.
(ii) Built-in temp. Deviation, audio/visual alarms.
Safety thermostat for over shooting of temp. Safety circuit to cut
off the whole system.
(iii) OLP (Overload Protector) & Time delay Circuit for safety of
compressors.
(iv) HRC fuses for compressors, Heaters & Mains.
Certification :
ISO 9001:2015 Certified Co. D&B registered & CE mark product.
ISO 14001:2015 & WHO-GMP
NSIC & MSME registered
Calibration & validation certificates traceable to NABL / ERTL
accredited labs.
Documentation :
To comply with the documentation requirements, we provide
IQ, OQ & PQ protocols to be executed before taking the chamber
in to for regular use, and support the supply with the following
documents with the detail operational and service manual.
Standard Operating Procedure (SOP)
Operational Manual for Controller
IQ,PQ,OQ protocols certificate.
Calibration certificate of all controlling modules with traceability.
Certificate of MOC.
Test Report of chamber prior to supply with mapping certificate.
wiring diagram for ease of service maintenance.