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°C / * -ERROR 52
Overtemperature in centrifuge chamber
The rotor slows down braked until it stops.
No further user operation possible except opening the lid.
•
Reset error code:
Perform a MAINS RESET.
•
Temperature in centrifuge chamber > 60°C / 140°F, with option
heating/cooling > 120°C / 248°F.
•
Overtemperature switch in centrifuge chamber is defective.
Measure on Electronics (A1) / plug S704, pin 3 – pin 4
Switch closed:
0 VDC
Switch opened: +15 VDC
•
Electronics (A1) is defective.
•
Cooling is defective.
°C / * -ERROR 53
The temperature in the centrifuge chamber measured by the
temperature sensor (B1) is out of the valid range.
The rotor slows down braked until it stops.
No further user operation possible except opening the lid.
•
Reset error code:
Perform a MAINS RESET.
•
The temperature sensor (B1) in the centrifuge chamber is
defective.
Measure on Electronics (A1) / plug S704, pin 1 – pin 2.
Valid voltage range: 2,24 V up to 3,92 V.
Voltage < 0.5 V = short circuit
Voltage > 4.5 V = disruption
Voltage at 25°C / 77°F = 2.98 V (
±
20 mV)
A temperature change of 1°K causes a voltage change of 10 mV.
•
Electronics (A1) is defective.
Содержание ROTINA 420
Страница 1: ...06 08 Andreas Hettich GmbH Co KG AR4701EN ROTINA 420 ROTINA 420 R Repair instructions ...
Страница 78: ...77 97 Fig 2 Fig 3 3 1 5 4 6 7 a b d 13 16 18 17 19 21 22 30 25 23 38 21 20 b a c d ...
Страница 80: ...79 97 Fig 6 Fig 7 Fig 8 9 10 12 11 7 8 a b 29 28 27 26 41 43 44 41 39 42 40 42 45 a c b d d ...
Страница 95: ...94 97 11 3 2 Connecting diagram ROTINA 420 420 R ...
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