C3602
Voltage range Standard drive units Explosion-proof drive
units
Maximum number of
starts per hour
Up to 1.1 kV 735 745 15
765
775 15
805
815 15
835
845 15
865
875 15
885
895 8
905
915 8
935
945 8
1.2-6.6 kV
862 872 15
882
892 8
950
960 8
985
995 8
C3800
Voltage range Standard drive units Explosion-proof drive
units
Maximum number of
starts per hour
Up to 1.1 kV 905 915 8
935
945 8
965
975 8
1.2-6.6 kV
950 960 8
985
995 8
The monitoring equipment
The MAS 711 system
MAS 711 (Monitoring and Status) is a monitoring system for ITT Flygt pumps. It monitors and stores
measurements from a number of sensors (temperature, leakage and vibration). These are used to:
• Protect the pump by raising an alarm when undesirable events occur.
• Track operational data.
Alarm levels can be set so that the operator is notified when an alarm event has occurred. Depending on
the alarm/event configuration, the MAS 711 system may stop the pump.
The base unit stores all measurement data on its embedded server.
The system also includes a pump memory module, storing identity data of the pump.
The parameters tracked are chosen by the customer, and may include the following:
• Temperature (main and support bearings, stator winding)
• Vibration
• Leakage (in the stator housing, the junction box, and water in the oil chamber)
• Power monitoring
For more information, see the Installation and User Manual for MAS 711 monitoring systems.
Pump current
Pump current is an important parameter in itself, which the MAS 711 can also use to record running time,
number of starts and other operating diagnostics.
Pump current is not measured using the 12/24 lead monitoring cable. To measure it, the control cabinet
must be equipped with a current transformer. Alternatively the Flygt power analyzer PAN 312 is used,
requiring three transformers. The measurement results are transmitted to MAS over a serial link (Modbus).
This information is fundamental for monitoring operation, maintenance planning and fault diagnosis.
Sensors, drive units up to 1.1 kV
The drive units in this voltage range are shown in Drive units (page 21).
Product Description
24 C3300/6x5, C/R3231, C3240, C3306, C3312, C3351, C3356, C3400, C3501, C3531, C3602, C3800 Installation,
Operation and Maintenance Manual
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