Detecting A Power Failure; Temperature Control And Accuracy - Aqualytic AL654/654G Instrucciones

4.3

Detecting a power failure

When the unit is first switched on, the display will flash. Pressing the „Up" or „Down"
key will cause it to stop flashing and remain permanently lit.
If there is a power failure, the display will start to flash again. This may indicate that
the temperature in the oven can no longer be held at the working temperature, if the
power is off for an extended period .
The controls will continue to operate normally, even if the display is flashing. The
flashing merely indicates that the unit has been switched off and then back on again,
or that the power supply failed for a time and no key has been pressed since then.
It is important to note that the display will flash, even if the power supply has failed
for a very short period. It does not necessarily mean that the temperature in the oven
has deviated significantly from the specified level.
4.4

Temperature control and accuracy

The thermostatically controlled incubators are not specified according ASTM E 145
(9-point-measurement) or DIN 12880, part 2 (27-point-measurement).
Specifications are based on a one-point-measurement .
Test procedure
1 . Place a sample bottle filled with 500 ml water with a stirring rod on a stirring place
and place it in the middle of a grid (5th insert from the bottom).
2. Completely immerse the probe of the meter in the water sample (according to the
specifications of the meter). The probe should not touch the bottle wall.
Specifications of the meter:
3 . The temperature is read after 4 hours .
Thermostatschränke • Incubators • Etuves réfrigérées
Armarios termostaticos • Estufas reguladas por termóstato_7 09/2012
Accuracy at least 0.5°C
Resolution at least 0.1°C
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