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en
12.2020 / Rev. 02
AB66005
Operation
Fig. 151: ‘Tolerance band’ menu
6.13.4
Tolerance band
In this menu, you can make the settings for the toler-
ance band alarm.
-5 K
+3 K
+ 3 K
- 5 K
B
A
D
C
C
C
Fig. 150: Tolerance band.
A
Temperature 2
B
Temperature 1
C
Alarm active (grey background on the diagram)
D
Door opening
- - - Temperature limit
Temperature setpoint
Actual temperature value
The tolerance band is the result of setting the upper and lower tem-
perature limits. It is monitored whether the ACTUAL temperature is
within the tolerance band.
The tolerance band limits can be set symmetrically or asymmetrically
around the temperature setpoint. Ex works, these are set to
±
1 °C or
±
2 °F.
The tolerance band limits can be defined in steps of 1 °C or 1 °F
between 1 °C and 30 °C or 2 °F and 54 °F.
If the actual temperature goes beyond one of the tolerance band
limits, an optical and acoustical alarm will be output. The potential-
free alarm output is switched.
Violations of the tolerance band are logged and can
be viewed and evaluated at any time.
Example of an asymmetrical tolerance band setting:
■
The current temperature setpoint is set to 37 °C.
■
The upper tolerance band limit is set to +3 °C.
■
The lower tolerance band limit is set to -5 °C.
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Страница 151: ...151 174 en 12 2020 Rev 02 AB66005 Index W Warning symbols 7 Warnings and error messages 126 ...
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Страница 170: ...en 12 2020 Rev 02 AB66005 170 174 Accessory overview ...
Страница 171: ...171 174 en 12 2020 Rev 02 AB66005 Declaration of conformity D Declaration of conformity ...