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Settings - Setpoints
Thermo Scientific
Setpoints
is used to view/adjust the circulator's five Setpoints (SP)and
Real Temperature Adjustments (RTA). The display shows the temperature
measured by the internal or external sensor, if this temperature does not
accurately reflect the actual temperature in the reservoir an RTA is re-
quired. The RTA can be set ±10°C (±18°F).
As an example, if the temperature is stabilized and displaying 20°C but
a calibrated reference thermometer reads 20.5°C, set the RTA to -0.5°C.
After you enter a RTA value allow display to stabilize before verifying the
temperature in the bath. Note If display accuracy is required, we recom-
mend repeating this procedure at various setpoint temperatures and on a
regular basis.
Note For refrigerated baths, the setpoint limits are determined by the
combination of the circulator, bath and fluid. The highest setpoint is the
lesser of the highest limit of the three while the lowest setpoint is the
greater of the lowest limit of the three. For heated baths, only the circula-
tor and fluid are used.
Circulator Limits °C:
Min
PC 200
-90
PC 201
-90
PC 300
-50
Fluid Limits °C:
Min
SYNTH 60
-50
SYNTH 260
45
SIL 100
-75
SIL 180
-40
SIL 200
20
SIL 300
80
Water
5
EG/Water
-30
Other
-90
When selecting a different fluid, the limits shrink if they are outside of
the new system limits. However, they do not expand if they are well
within the system limits.
Bath Limits °C:
Max
A28
200
A25
200
A40
300
A28F
A24B
G50
Max
45
250
75
200
200
300
95
100
300
Section 4 Operation
Min
Max
-28
200
-25
200
-40
200
-28
200
-24
200
-50
200
4-11
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