Lauda Proline RP 1290 C, Operating Instructions Manual

Page: 75 / 120

Proline Edition X cooling thermostats
YACE0100 / October 4, 2018
Starting up
75
7.13.2.1 Proven settings for control parameters (external control):
External vessel
Master controller
(External controller)
Slave
controller
(Internal
controller)
Instru-
ment
Type Heat
transfer
liquid
Description
Volu-
me
[L]
Hose-
lenght
[m]
Kpe
EP
Tne
En
Tve
Eu
Tde
Ed
Prop_E
Eb
Xpf
iP
Pump
Level
RP 845 Water
double wall glass vessel 2,5 2x1
2.0 80 60 5.0 30 4.0 5
RP 855 Water
double wall glass vessel 2,5
2x1
2.0 150 130 5.0 30 3.0 5
RP 855 Water
double wall stainless
steel vessel with water 0,7
2x1
0.5 70 50 5.0 30 3.0 5
RP 855 Ethanol
double wall glass vessel 2,5
2x1
2.0 150 122 15.0 30 3.0 5
RP 855 Ethanol
double wall glass vessel 2,5
2x1
2.0 150 120 15.0 30 3.0 5
RP 855 Ethanol
double wall glass vessel 2,5
2x1
2.0 125 107 15.0 30 3.0 5
Technical alterations reserved!
7.13.2.2 Steps for setting the control parameters for external control
1. Activate external control (

7.7.4).
2. Setting the slave controller:
2.1. Set parameters to auto ; Xpf see table (

7.13.2.1) (experienced data) depending on:

Check for thermostat type and change when necessary (RP....) (

9.2.1),

Choose heat transfer liquid with low viscosity and high thermal capacity.
Ranking: water, ethanol, water-glycol, oil, Fluorinert®.

Set pump level as high as possible,

make bath circulation strong and fast,

choose hose length as short as possible, i.e. 2 x 1 m,

choose hose cross section as large as possible, i.e. ½ inch,

throughput through the external load as large as possible.
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).