LAUDA Ultra-Thermostats
UB 20(-D), UB 25, UB 50, UB 30, UB 40
UB 20 F, UB 20 J, UB 30 J, UB 40 J, UB 65 J
UB 20 JL, UB 30 JL, UB 40 JL
YATE0013 / 10.04.02
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9 Starting
up
9.1 Filling
Fill the unit with bath liquid to suit the operating temperature, see Section 5. The filling
volume is given under Technical data. In general the thermostat must be filled no higher
than 2 cm below the cover plate. When working with thermal oils (e.g. Ultra-Therm
330 SCB) slightly less liquid should be filled in to allow for expansion. The level must
obviously not fall below the minimum, otherwise the low-level protection swiches off the
unit (see Safety circuit). The same applies to filling an external system by the pump
during start-up.
UB 20 F, UB 20 J, UB30 J, UB 40 J, UB 65 J
When these types are switched on the cylindric working chamber is always filled
completely, this is why only the rest volume of the bath allows for further expansion in
volume.
We recommend to control the level at operating temperature with the unit switched off.
Also in this case the level should not be higher than 2 cm below the cover plate.
9.2
Connection to supply
Connect the unit only to an earthed socket (PE). Compare the details on the label with
the mains voltage (see Item 4.4.2).
Model according to EMC directive EN 61326-1 (industrial areas only). *
When working without external system, ensure that the pump connections are linked
together (metal hose link Cat. No. LZM 044) or closing plugs are being used.
9.3 Basic
functions
9.3.1 Supply
switch-on
Switch on the mains switch. The green indicating lamp lights up. The display shows
consecutively
Fa LAUDA
P-Thermostat
Type R 400 P
for all Ultra-Thermostats
V 2.XX Date
software version
L
1
T
i
= 20.00°C C
other values depending on
L
2
T
S
= 10.00°C T
i
I
bath temperature and setpoint
*
Notice only valid for EU countries!