PTT
18
Appendix
YAME0020 / 30.06.11
6 Appendix
6.1 Error
messages
The Self-Check Assistant of your PTT
Thermostating Unit monitors numerous
device parameters and issues error mes-
sages, if necessary.
All messages are indicated in the display
using error codes which are interpreted
according to the error list and can be rem-
edied as required.
Message
Meaning
Remedy
Er.0
Memory error, parameter
Report to LAUDA Service
Er.1
Memory error, hardware
Report to LAUDA Service
Er.2
Sensor not connected
Connect sensor to PTT unit
Er.3
Internal T-sensor defective
Check immersion depth of external sensor
Er.4
Fault on Command supply
Report to LAUDA Service
Er.5
Power stage overload
Report to LAUDA Service
Er.6
Driver overheating
Report to LAUDA Service
Er.7
Undervoltage for power driver
Report to LAUDA Service
Er.8
Difference, T-sensors
Report to LAUDA Service
Er.9
Fan problem
Report to LAUDA Service
To protect the unit against overheating it is equipped with a bimetallic protection device. This device
completely isolates the unit from the power supply when the temperature of the receiving container ex-
ceeds 90 °C. In this case please contact the Service Department.
6.2
Ambient conditions
The use of the thermostating unit is only admissible under the conditions stated in DIN EN
61010-2-010:2003 and DIN EN 61010-1:2001.
The device may be set-up and operated only indoors.
Place on a sealed, flat, non-slip and non-flammable siting base.
For proper operation it is essential to conform to the ambient temperature requirement (refer
to
Technical data).
Relative humidity (refer to
Technical data).
Overvoltage Category II and transient overvoltages according to Category II.
Summary of Contents for LMTZ 831
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