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Grant Scientific

LTC2 Refrigerated Circulating Baths

LTC2 1
LTC2 2
The TC120 - R2 is available ready assembled with the circulator mounted on the refrigerator and supplied with insulated tubing and clips to form a system ready to use. Supported by an industry leading 4 year warranty emphasising Grant`s confidence in the reliability of its refrigeration products.

ÁRAJÁNLATOT, INFORMÁCIÓT KÉREK!

The Grant Optima™ LTC2 Kit includes TC120 heating circulator and R2 tank/refrigeration unit:
 
  TC120-R2

  • 5 litre tank with drain tap
  • cooling power 140W @ 0°C
  • temperature range -25 to 100°C

The Grant Optima™ TC120 R series of refrigerated circulating baths with digital control provides excellent value for money for more demanding applications requiring accurate heating and cooling in the range of -25 to 100°C.
  
The TC120 heating circulator incorporates Intelligent Control Optimisation (ICO)™ for adaptive intelligent PID temperature control and includes a powerful integral pump, making TC120 series refrigerated systems suitable both for immersing samples and circulating temperature controlled fluid to external devices. It includes a convenient timer function for reaction timing and a variable high temperature alarm setting. The temperature range and heater power are automatically limited according to the liquid type selected.

  • Simple-to-use rotor dial and two function keys provide access to the interactive interface for fast, accurate set-up
  • Clear 4-digit display for instant reassurance - easy to read from a distance
  • Visual and audible alarm - alert you when your attention is required
  • Operating setpoint plus 3 adjustable preset temperatures for convenience
  • User calibration facility for optimum accuracy at the required operating temperature
  • Powerful integral pump - maximum flow rate 16L/min
  • Cooling/heating range: -25 to 100°C
  • Stability ± 0.1°C

Note: The refrigeration unit can be switched off independently of the circulator to allow heating only applications. All the refrigeration base units can be used up to a maximum temperature of 100°C.

Műszaki specifikációk
Low temperature refrigerated circulating baths - technical specifications
Grant Optima™ circulator
 Digital
TC120
Stability (DIN 12876) water @ 10°C °C ± 0.1
-10°C for 50% water, 50% glycol °C ± 0.1
Uniformity (DIN 12876) water @ 10°C °C ± 0.1
-10°C for 50% water, 50% glycol °C ± 0.1
Setting resolution °C 0.1
Display 4 digit LED
Timer function 1 min to 99 hrs 59 mins
No. stored temperature values 3
Two point re-calibration
Safety overtemperature adjustable cut-out
fluid level - float switch
High alarm yes
Heater power 230 V kW 1.3
120 V kW 1.4
Electrical power 230 V kW 1.4 (50 Hz)
120 V kW 1.5 (50-60 Hz)
Height above tank rim mm 200
Depth below tank rim mm 135
Grant Optima™ thermostat pumps (integral)
Maximum pressure water mbar 210
Maximum flow water L/min 16
Pipe boreinlet/outlet mm 6, 11
R series refrigeration units - models and specifications
Grant Optima™ circulators
  = standardR2
Relay control (refrigeration on/off)
Refrigerant R134a
Drain
Overtemperature cut -out 100°C limit
Water freezing protection thermostat
Refrigeration high pressure switch 27 bar -
Cooling power**, ambient 20°C 
@ 20°C  W
340
@ 0°C  W 140
@ - 10°C  W 100
@ - 20°C  W 35
@ - 30°C  W -
@ - 40°C  W -
@ - 47°C  W -
Electrical power (maximum) 
230V  W
334 (50 Hz)*
120V  W 328 (50 Hz)*
EMC emissions  class B

* Optima™ circulator and accessory pumps can be powered from the back of the R2 220-240 V refrigeration units. Allow up to 2 kW of extra power from the electrical supply
** The optional VTP pumps will transfer additional heat to the baths and reduce the net cooling power of the refrigeration unit. The above figures must be taken into consideration when choosing the refrigeration unit
Note: when ordering a VTP pump, please specify which refrigeration base unit it is to be used with

Applikációk

Grant case study:  Department of Chemistry, Imperial College London.

Product range: Grant Optima LTC refrigerated baths and circulators

 

Background
The Department of Chemistry at Imperial College London is one of the largest chemistry departments in the UK and has a world-class reputation for both teaching and research.  The Department employs over 50 academic staff, many internationally renowned in their respective fields, four Fellows of the Royal Society, 23 academic visitors, 49 postdoctoral fellows and 193 postgraduate students.  It has five research groups covering catalysts and advanced materials, chemical biology, chemical physics, nanostructures materials and devices and synthesis. 

Application
The Department of Chemistry’s busy undergraduate teaching labs contacted Grant Instruments to discuss potential solutions for controlling the temperature of the numerous condensers used for routine experiments.  Condensers in the lab are often used for up to 8 hours a day and sometimes overnight to allow experiments to run to completion.  In the past the Department had relied on mains water cooling of condensers, but were keen to switch to a method which minimised water consumption, removed the risk of flooding and provided more consistent temperature control.

The Grant Optima LTC refrigerated circulator solution
Grant Instruments supplied a total of ten Optima refrigerated circulating baths (product name - LTC) for the temperature control of condensers in the teaching lab.  Grant Optima LTC units are supplied as a ready to use system with insulated tubing and clips included, making it simple to attach to the condenser set-up. 

Teaching lab technicians soon discovered the LTC could be used to circulate temperature controlled fluid to up to three condensers and one starfish condenser with five branches. The LTC also provided temperature stability and uniformity which could not be achieved using mains water temperature control.  

The benefits
The LTC was chosen as it provided an efficient solution to cooling a large number of condensers in the teaching lab.  The solution meant that experiments could be performed around the clock, without concerns over water usage or the risk of flooding.  Teaching staff could be confident that reactions were occurring at the right temperature and due to the quiet functioning, units were unobtrusive in the busy environment. 

Tartozékok, kiszerelések

Product Calibration

A product calibration service is available which includes a calibration certificate, traceable to national standards.  Please enquire prior to placing order. 

Labwise™ PC software (optional)
 DigitalDigital High Performance
 T100TC120TX150TXF200
Allows two-way communication for status display, programming and data capture - - YES YES
External probes (optional)
 DigitalDigital High Performance
 T100TC120TX150TXF200
for monitoring and controlling temperature of remote loads  
TXPEP flexible plastic probe, 3 m cable - - YES YES
TXSEP stainless steel probe, 3 m cable - -
Remote switching device (optional)
 DigitalDigital High Performance
 T100TC120TX150TXF200
For switching appliances on and off (up to max. 8 Amps) - - 1 1
Vertical turbine pumps (optional)*
 DigitalDigital High Performance
 T100TX120TX150TXF200
Low noise, compact design. Supplied with pipe connections and special lid for fitting to tanks, pipe bore 12.7 mm Required only where application demands a higher pressure than that delivered by the internal pump to maintain flow  
VTP 1 YES
max. pressure 1000 mbar
max. flow 9 L/min
VTP 2 YES
max. pressure 1650 mbar
max. flow 12 L/min
* When pump is fitted, available working area is reduced.
** Maximum depth can be increased by 10 mm, by removing the circulation tray in 18, 26 and 38 litre baths, with slight loss of performance.
High pressure pumps (optional)
 VTP Pumps
 VTP1VTP2
Maximum pressure water mbar 1000 1650
Maximum flow water L/min 9 12
Pipe bore inlet/outlet mm 12.7 12.7
Electrical connection 10 amp IEC 11 amp IEC
Power consumption W 30 40
Power output to liquid @ 20°C W 15* 22*
Safety thermal fuse thermal fuse

* The VTP optional pumps will transfer additional heat to the baths, so the minimum temperature achievable with or without accessory cooling will be increased.
Note: When ordering a VTP pump, please specify which Grant tank is to be used with.

Pump Connectors
 

Part number

Replacement plastic pump inlet/outlet connector. Fits tubing 9mm outer dia. Temp range -50 to 200˚C

P-M6

Replacement plastic pump inlet/outlet connector. Fits tubing 15mm outer dia. Temp range -50 to 200˚C

P-M11

Stainless steel pump inlet/outlet connector, M16 x 1 male. Fits M16 hose. Temp range -50 to 200˚C

M-M16

Metal pump inlet/outlet connector, dual seal super rapid 4mm. Fits semi rigid tubing 4mm outer dia. Temp range -20 to 100˚C

M-SR4

Metal pump inlet/outlet connector, dual seal super rapid 6mm. Fits semi rigid tubing 6mm outer dia. Temp range -20 to 100˚C

 M-SR6

Metal pump inlet/outlet connector, dual seal super rapid 8mm. Fits semi rigid tubing 8mm outer dia. Temp range -20 to 100˚C

 M-SR8

Metal pump inlet/outlet connector, hose barb 7mm. Fits flexible tubing 7mm inner dia. Temp range -40 to 120˚C

 M-HB7

Metal pump inlet/outlet connector, hose barb 9mm. Fits flexible tubing 9mm inner dia. Temp range -40 to 120˚C

 M-HB9

Metal pump inlet/outlet connector, hose barb 12mm. Fits flexible tubing 12mm inner dia. Temp range -40 to 120˚C

 M-HB12

Metal pump inlet/outlet plate, 1/4 " BSP/G1/4 female. Temp range -50 to 200˚C

 M-UC

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