The Grant Optima™ GD120K is a general purpose microprocessor controlled immersion thermostat with an exceptionally simple user interface. It provides digital control for simple, effective temperature control in the range of -20 to 120ºC and includes an integral pump for circulating temperature controlled fluid around external apparatus.
The GD120K can be used in combination with the
Grant S and P ranges of stainless steel and plastic tanks or with other vertical sided vessels.
A clamp (K clamp) fitted to the rear of the GD120K immersion thermostat allows it to be attached to any vertical sided tank with a maximum wall thickness of 35mm for rectangular tanks, 30mm for circular tanks (300mm diameter) and a capacity of up to 50 litres.
Accessory options for GD120K
Polypropylene spheres
Polypropylene spheres are an alternative to lids for temperatures up to 100ºC, allowing easy access to vessels in the bath, and are particularly useful for tall vessels.
| Grant tank (S=stainless steel, P=plastic) |
S5, P5 |
S12, P12 |
S18, P18 |
S26 |
S38 |
| No. of packs of spheres required |
1 x PS20 |
1 x PS20 |
2 x PS20 |
2 x PS20 |
3 x PS20 |
CG refrigerated immersion coolers Refrigerated coolers consist of a cooling coil connected by a flexible pipe to a refrigeration unit, which is housed in an outer case; immersion coolers extract heat continuously, with temperature control carried out by the bath’s control unit.
CW5 heat exchange coil: is designed to be attached to a supply of cooling tap water, or a refrigerated circulator.
| |
|
|
C1G |
C2G |
CW5 |
| Temperature range |
|
ºC |
0 to 40* |
-20 to 40* |
2ºC above coolant temperature |
| Min. temp. with Grant S series tanks |
|
ºC |
0 |
S26, S38: -15 |
2ºC above coolant temperature |
| Cooling power |
@ 20°C |
W |
350 |
400 |
n/a |
| |
@ 0°C |
W |
110 |
320 |
n/a |
| |
@ -10°C |
W |
n/a |
170 |
n/a |
| Overall consumption |
|
VA |
300 |
500 |
n/a |
| Dimensions |
d/w/h |
mm |
460/305/225 |
460/305/225 |
|
| Flexible pipe |
l |
mm |
925 |
925 |
|
| Coil |
dia/l |
mm |
77/55 |
77/105 |
77/55 |
| Pipe bore inlet/outlet |
|
mm |
- |
- |
7 |
| Electrical supply |
|
|
220-240V 50Hz |
220-240V 50Hz |
n/a |
* Note: The cooling coil may be continuously immersed in liquids up to 100ºC with the cooler switched off, and may be used to cool liquid down from 100ºC, but it is not designed for continuous operation above 40ºC.