KSB Amaprop GDSTP-24130-MAN-0004 P1, Инструкция по установке и эксплуатации

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7.2.1.4 Checking the sensors
CAUTION
Excessive test voltage
Damage to the sensors!
▷
Never test the sensors with voltages exceeding 30 V.
The tests described below measure the resistance at the core ends of the power
cable. The actual function of the sensors is not tested.
Table 8: Resistance of temperature sensors in motor winding
Measure between terminals ... Resistance
10 and 11
100 Ω - 1000 Ω
If the tolerances indicated are exceeded, disconnect the power cable at the
submersible mixer and repeat the check inside the motor.
If tolerances are exceeded here, too, the winding will have to be replaced.
Table 9: Resistance of leakage sensor in the motor
Measure between terminals ... Resistance
9 and earth conductor (PE) > 60 k
Ω
Lower resistance values suggest water ingress into the motor. In this case the motor
must be opened and overhauled.
Table 10: Resistance of leakage sensor at mechanical seal
Measure between terminals ... Resistance
6 and 7 > 60 k
Ω
Lower resistance values suggest liquid ingress into the leakage chamber. In this case
the leakage chamber must be checked. (
⇨
Section 7.2.1.5.3 Page 33)
7.2.1.5 Lubrication and lubricant change
7.2.1.5.1 Quality of lubricant
The lubricant reservoir is filled at the factory with an environmentally friendly, non-
toxic lubricant of medical quality (unless otherwise required by the customer).
The following lubricants can be used for lubricating the mechanical seals:
▪
Thin-bodied paraffin oil; producer: Merck, No.: 7174
▪
Merkur white oil Pharma 40; producer: DEA
▪
Equivalent brand of medical quality, non-toxic
▪
Water-glycol mixture
▪
All non-doped and doped motor oils of classes SAE 10W to SAE 20W
▪
Lubricant to ISO VG 320 (viscosity 320) for fluid temperatures
≤
45 °C
▪
Fully synthetic gear oil CLP 320 PAO (based on polyalphaolefines) for fluid
temperatures between 45 °C and 60 °C
WARNING
Contamination of fluid handled by lubricant
Hazardous to persons and the environment!
▷
Using machine oil is only permitted if the oil can be disposed of properly.
7.2.1.5.2 Lubricant quantity
Table 11: Quantity of mechanical seal lubricant
Size Lubricant quantity
1000, 1200, 1400, 1600, 1800, 1801, 2000, 2200, 2500 1.9 l
Temperature sensors in
the motor winding
Leckage sensor in the
motor
Leakage sensor at
mechanical seal (optional)
Recommended quality of
mechanical seal lubricant
Alternative
Recommended quality of
gear unit lubricant
Mechanical seal
7 Servicing/Maintenance
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