Platinous User’s Manual 61
Operation
5. Set the temperature/humidity high/low alarms. The absolute high/low limits will determine the allowed
input range for both the constant and program modes.
FIGURE 6.39. ABSOLUTE HIGH/LOW LIMIT AND UPPER DEVIATION LIMIT TEMPERATURE
Absolute high/low limits:
These settings are designed to protect the chamber against thermal damage. Set them at least 10°C
higher/lower than the target temperature. When tripped, an alarm is generated and the chamber stops
running.
Upper deviation limit:
This setting is designed to protect specimens against heat damage. It also triggers a safety device inside
the chamber, which causes the chamber to stop running. When temperature returns within range, normal
control is restored automatically.
+110°C
-45°C
Target temperature setting range
Target temperature
Abs olute hi gh limit
t emperature
Absolute low limit
temperature
Upper deviation
limit temperature
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