Baker Hughes Druck Dry TC 165, Инструкция по эксплуатации

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Copyright 2013 Baker Hughes Company.
30 | Dry TC / Liquid TC Temperature Calibrators–English
The set point name (SP1, SP2, SP3 or SP4) appears on the lower display for 2 seconds
followed by the current set point temperature.
2. To receive another saved set point, e.g. SP1, SP2, SP3 or SP4, press the key again.
3. The selected temperature value is immediately adopted and targeted.
5.4.4 Gradient Control / Temperature Profile
Gradient control actively controls the rate of change (°C/min) of the calibrator’s temperature. A
temperature profile is a combination of a heating gradient
, duration time and
cooling gradient .
Figure 36: Gradient Control in a Temperature Profile
The heating gradient is active if the reference temperature is lower than the set point
temperature. Each model of calibrator type has a maximum heating capacity. Only gradient
settings less than the heating capacity can be achieved.
The cooling gradient
is active if the reference temperature is higher than the set point
temperature. Each model of calibrator type has a maximum cooling capacity. Only gradient
settings less than the cooling capacity can be achieved.
The calibrator can be configured to:
a. Immediately switch to set point SP2 as soon as set point SP1 has been reached, or
b. Switch to SP2 after duration time
, after SP1 has been reached.
When using gradient control, it is possible to determine the time at which the set point
temperature is reached.
dur.t = InF
SLor
SLoF
dur.t
Manual set point change
Automatic set point change
SLor
SLoF
PV
SP
Time
PV
SP1
Time
SP2