PERFORMANCE
Fixed switch differential
On controls and recycling limits a fixed differential of: 4 ± 1.5°C, 8 ± 3°C or
12 ± 3°C is supllied as a standard.
Optional are:
7 ± 2.7°F,
14 ± 5.4°F
15 ± 5.4°F
Adjustable switch differential
On controllers and recycling limiters an adjustable differential of:
4 ± 1.5°C ... 10 ± 3°C or
7 ± 2.7°F ... 18 ± 5.4°F can be supllied.
Manual or tool reset switch differential
On the thermal
NOTE: The differential (thermal) is dependant on the rate of change of the temperature in the heating system. The given differential datas are valid for a rate of 1°C per minute.
Ambient temperature error
Ratio of ambient error | Max. setting | Min. setting | ||
With capilliary lenth of 1000 mm | 1 | : 5.5 | 1 | : 8.5 |
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With capilliary lenth of 50 mm | 1 | : 12 | 1 | : 25 |
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Example:
An ambient error ratio of 1 : 6 means that an ambient change of 6°C will cause a setpoint shift of the Aquastat of 1°C.
Time constant
•With well
τ≤ 30 s for panel mounted, single direct mounted, dual direct mounted and triple direct mounted Aquastats.
•Without well
τ≤ 4 s
•With sensor assy (Surface mounted Aquastat)
τ± 50 s
Setpoint accuracy
16 |
