Lauda PROLINE Kryomats RP 4050 C Operation Manual page 83

2.2. Xpf setting:
 when oscillating with short period occur (i.e. 30 seconds)  Xpf lower, otherwise higher,
 in case of bad thermal coupling and large thermal mass  high (i.e. 2 – 5, or even higher),
 in case of good thermal coupling and small thermal mass  low (i.e. 0.2 – 0.7),
 when rapid temperature response is required simple internal control should be preferred. Otherwise select small
Xpf (0.05 – 0.1).
3. Setting the master controller (PIDT1-controller):
 Start with setting Auto and proceed with Manual only when necessary.
3.1. Kpe setting:
 In case of oscillations with large period, i.e.10 min)  Kpe higher, otherwise lower.
3.2. Tne/ Tve/ Tde setting:
 Start with high numbers (Tne = 70s – 200s; Tve = 50s – 150s).
 With lower numbers  faster approach, otherwise slower approach with lower oscillations.
 Tve: to reduce overshot  Tve higher, otherwise lower.
 Tde (damping for Tve): in general approximately 10% of Tve.
4. Correction limitation (or outflow temperature limitation)  7.11.2 and temperature limits (Til/Tih)  7.6.2:
 Make settings in accordance with the boundary conditions. Examples:
Heat transfer liquid
Water
Ethanol
 Tools to watch the time behavior: Graph mode of the Command remote control, LAUDA Wintherm PC-
program.
03/2022
Correction limitation
depending on the external
vessel size and the heat transfer
liquid
Proline Kryomats
Til
+2°C
Minimum
Tih
+95°C
+40°C
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