| 摘要 |
A laboratory thermostat features a heating and/or cooling device for temperature control of a liquid bath medium located in a bath tank. The laboratory thermostat has an early-warning system with a control device for a low liquid level in the bath tank and an evaluation device that can realize at least an acoustic and/or visual warning message for maintaining the temperature control process. Due to the integrated early-warning system, when the liquid level decreases, the user of the laboratory thermostat is made aware in due time before undesired shutdown by a low-liquid-level protection device, so that lost temperature control fluid can be immediately refilled before the safety shutdown is triggered by the low-liquid-level protection device.
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