IKA labworldsoft - Manual (Page 95)

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Highly precise, processor-controlled laboratory thermostats for direct and indirect tempering.
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1. Input path for set temperature.
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1. Set temperature in °C
2. Actual temperature in °C
3. External actual temperature in °C
Via two option push-buttons control can be switched between the internal sensor and an
external sensor.
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1. Watchdog active/ not active
2. Time-out time for the watchdog
3. Time-out actions.
As an additional piece of safety equipment, laboratory thermostats from Huber offer device-
internal monitoring with labworldsoft or from the attached computer. If the control software or
computer fails (crash, loss of power, etc.), this system is able to turn off the thermostat or to
switch it over to a safe temperature range. The thermostat's Parameters dialog box is used to
activate the watchdog, to set the time window and to set actions to be initiated in the event of a
fault.
The Time-out time of the watchdog must be selected so that is greater than the current
sampling rate of the measurement by a factor of at least 5.The features for safety monitoring are
not available until after the control path for the target temperature has been activated.
This feature is supported beginning with a specific delivery date of the thermostat. If your device
does not support this feature, an appropriate error message will be generated before the
beginning of the measurement. As a basic rule, models that were delivered before January 1
1999 do not support this feature.
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Detailed information on the laboratory thermostat features may be found in the separate
operating manual.
For proper communication the transmission parameters of the unit serial interface have to be set
to the following values:
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