Circulators
Specification sheet no.017 

Gas Flow Meters &
Calorimeters


Circulating Baths

Calibration Baths

Visibility Bath

Ovens & Incubators

Viscosity Baths

Cloud & Pour Point
Apparatus

Other Petroleum
Test Equipment

Non CFC Cabinets
& Chambers

Lyophiliser
(Freeze Dryer)

Other Research &
Laboratory
Equipment

 


INSREF Ultra Cryostat Circulator, Cat. No. IRI 017

Polished Stainless Steel tank of filling volume 10-12 ltrs with overall size 300 mm x 200 mm X 200 mm (D)
Large usable workspace of approximately 180 mm X 180 mm x 200 mm (D)
Pump cum stirrer with pumping capacity of between 10 & 12 ltrs / min at zero head
Long - life steel immersion heater with extra long cold zone
All other wetted parts are of non-corrosive, non-ferrous materials
Tank insulation is foamed - in - place Polyurethane Foam (PUF)
Operating temperature range as per table below 
Digital proportional, fully solid state temperature control
Accuracy of temperature control better than 0.1 C at minimum temperature 
Digital temperature display with resolution (least cont) of 0.1o
Accuracy of temperature display 0.5% of full rang 1 digit
High temperature safety cut-off for heater (over temperature protection)
Auto boost heating (if max. temperature > 40oC)
Auto above ambient cut-off for compressor (if max. temperature > 40oC)
Cooling by air cooled, balance, non CFC, single or double stage systems 
For double stage systems, necessary safety cut-offs are built-in to allow unattended operation 
Built-in high & low voltage cut-off to protect compressors from power supply extremities 
Powder coated, compact, double color exterior, with an insulated lid
Easy to operate & maintain, with detachable controller for ease-of-recalibration
Available in two formats - floor standing (shown alongside) with wheels for easy mobility and table top

Cat. No.

Temperature 
Rang,oC

Cooling 
Capacity, Watts
Maximum Outer
Dimension, mm
Table Top  Floor
IRI 017 A -10 to 40 260 @ 0oC

750 X 650

450 (H)

600 X 475

825 (H)

IRI 017 C -20 to 40 480 @ 0oC
IRI 017 E -30 to 40 670 @ 0oC
IRI 017 G -40 to 40 250 @ -40oC

NOT AVAILABLE 

650 X 600 

900 (H)

IRI 017 I -70 to 40 320 @ -40oC

Pump motor extends to an height 200 mm above top cover of the equipment. Pump nozzles are of ID 6 mm, shoe -cut and can take flexible tubing having up to 10 mm ID. Nozzles are approximately 30 mm above top cover of the equipment.

Lowest temperatures typically reach within 90 to 120 minutes, at an ambient to 27oC to 30oC. The lowest reachable temperature varies with ambient temperature, quality & nature, of tank media and level of equipment maintenance. An air - conditioned environment is most suited, though not absolutely necessary.

While calculating space requirements based on the above data, pleased take into account free air circulation space of at least 300 mm on all sides of the equipment.

Suggested tank liquids are distilled water for operating temperatures above 5oC and good quality methanol for operating temperature below 5oC.

The Digital Temperature Display is calibrated at our factory against thermometers which have calibration certificates traceable to national standards. Calibration Certificates from a Government of India lab, traceable to national standards for individual equipment can be given, at extra cost.

OPTION AVAILABLE
Smaller / larger tank sizes
Smaller frame sizes
Higher Maximum Temperatures
Higher Cooling Capacities
Stands / holdres
Calibration Certificate
Insulation Tubing


WHILE ORDERING, PLEASE INDICATE CHOICE OF TABLE TOP OF FLOOR FORMAT.
IF THERE IS NO SUCH INDICATION, ONLY FLOOR FORMAT WILL BE SUPPLIED