Combining Grant's highly acclaimed Optima™ thermostats with high quality, robust refrigeration units, Grant stirred refrigerated baths provide the following features and benefits:
- Powerful precision cooling whether used in open-loop or closed-loop format
- Grant’s legendary quality and reliability combined with design for everyday use – useful features, straightforward maintenance, compact design
- Robust, durable construction from corrosion resistant materials with a stainless steel internal tank for longevity, reliability and long-term low cost of ownership
- A complete range – over 20 models to cover basic through to sophisticated needs
- All refrigeration products come with the best possible support – Grant’s excellent service and market-leading warranties
- Low liquid protection by float switch
- Overtemperature cut-out with a 100°C limit
- 5°C thermostat on/off switch to stop the tank freezing when operating with water
- Removable grill for easy cleaning of the condenser
- Dual position bridge plate for mounting the thermostat in the most convenient orientation
- Removable lid with fitted insulated handle
- Choice of 230V and 115 V models
The Grant Optima™ GD120-R2, our most popular model, is a versatile system with a comprehensive specification to suit most low temperature applications.
- Simple-to-use rotor plus two keys provide access to the interactive interface for fast, accurate set-up
- Powerful integral pump – allows temperature-controlled fluid to be circulated to external devices
- Powerful and efficient cooling, ozone friendly refrigerant
- Convenient timer function for reaction timing
- Audible and visual alarms - alert you when your attention is required
- Clear digital display – easy to read from a distance for instant reassurance
- Robust construction, corrosion resistant materials, stainless steel tank – durable in demanding environments
- Removable grille – easy access to drain valve and condenser for routine maintenance
- 5ºC thermostat on/off switch – stops tank freezing when operating with water
- Operating setpoint plus 3 adjustable preset temperatures for convenience
- Designed for quiet operation for minimal impact on your working environment
- Dual-position bridge plate: - ensures visibility/accessibility of the thermostat whilst optimising bench space
- Convenient removable lid with insulated handle
- Convenient carrying handles front and rear for repositioning the unit
Accessory options for the Grant Optima GD120 R series
Accessory vertical turbine pumps
Required only where the application demands a higher pressure than that delivered by the GD120 internal pump to maintain flow. Note: When an accessory pump is fitted, the available working area is reduced.
Grant accessory pumps feature a unique low noise, compact design which produces high pressure with low heat input to the liquid.
Supplied with pipe connections and special lid for fitting to tank, pipe bore 12.7 mm.
VTP1 - max. pressure 1000 mbar, max. flow 9 L/min
VTP 2 - max. pressure 1650 mbar, max. flow 12 L/min
Specification comparison table – VTP optional pumps and Optima GD120 thermostat pumps
| |
|
|
VTP1 |
VTP2 |
GD120 |
| Max. pressure |
water |
mbar |
1000 |
1650 |
310 |
| Max. flow |
water |
L/min |
9 |
12 |
17 |
| Pipe bore |
inlet/outlet |
mm |
12.7 |
12.7 |
6, 11 |
| Mains power connection |
|
10 amp IEC |
10 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 and reduce the net cooling power of the unit. The above figures must be taken into consideration when choosing the refrigeration unit.
Note: The refrigeration base unit selected must be specified when ordering the required VTP optional pump.