RADEMACHER 9485 Instruction Manual For The Electrical Connection And For Commissioning page 10

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2.3 Glossary - definition
Hysteresis / minimum on-time
◆ This function prevents an unnecessary large number of
switching operations by setting a minimum on-time
◆ This prevents the DuoFern Room Thermostat 9485 tripping
too often if the room temperatures fluctuate
Offset (sensor offset)
◆ The temperature measured on site can vary slightly from
the room temperature if the DuoFern Room Thermostat
9485 is installed in a unfavourable position (e.g. behind a
curtain or on a cool exterior wall)
◆ An adjustment of the measurement in the range of - 5.0°C
to + 5.0 °C can be carried out using the sensor offset
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