Alarms, Warnings And Errors; Overtemperature Protection And Checking - Lauda PROLINE Kryomats Series Operating Instructions Manual

Proline Kryomats
3.1. Kpe setting:
− In case of oscillations with large period, i.e.10 min)
3.2. Tne/ Tve/ Tde setting:
− Start with high numbers (Tne = 70s ... 200s; Tve = 50s ... 150s).
− With lower numbers
− Tve: to reduce overshot
− Tde (damping for Tve): in general approximately 10% of Tve.
4. Correction limitation (or outflow temperature limitation)
− 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 console, LAUDA Wintherm PC-
program.

7.12 Alarms, Warnings and Errors

The SelfCheck Assistant of your Proline Kryomat monitors more than 50 device parameters and triggers
alarms, warnings or errors as appropriate.
All warnings and alarms are shown on the Command control element in plain text. Errors are shown in
plain text on the Command control element, also, in an error list.
Alarms: Alarms are safety relevant. Pump, heater and refrigerating unit will be shut off.
Warnings: Warnings normally are not safety relevant. The device continues to operate.
Errors: If an error occurs, the pump, heater and refrigerating unit switch off automatically.
Switch of the unit at the rotary mains switch. If the error is always present after switching on
the device, please give information to the LAUDA Service for Constant Temperature
Equipment (
Find cause of alarm or warning and rectify where necessary. Then press
order to remove the alarm message. Warning messages can be removed either on the Master keyboard
with or on the Command board with
Warnings may be ignored by pressing
Softkey on the Command control element. Warnings will not be repeated periodically.

7.12.1 Overtemperature protection and checking

The units are designed for operation with non-flammable and flammable liquids to
DIN EN 61010-2-010.
YAUE0007 / 2/26/2009
faster approach, otherwise slower approach with lower oscillations.
Tve higher, otherwise lower.
Correction limitation
depending on the external
vessel size and the heat
transfer liquid
9.3.7).
.
or on the Master keyboard or by activating the Screen
Starting up
Kpe higher, otherwise lower.
7.11.2 and temperature limits (Til/Tih)
Til
+2°C
Minimum
on the Master keyboard in
7.6.2:
Tih
+95°C
+40°C
75