Positio
n
Denomination Description
14 Support bearing Consisting of a two-row ball bearing
Monitoring equipment
The following applies to the monitoring equipment of the pump:
• The stator incorporates three thermal contacts connected in series that activate the
alarm and stops the pump at overtemperature
• The thermal contacts open at 140°C (285°F).
• Ex-approved pumps must have thermal contacts connected to the control panel.
• The sensors must be connected to either the MiniCAS II monitoring equipment or an
equivalent equipment.
If optional sensors are installed it is recommended to use MAS 711 as monitoring
equipment or equivalent equipment.
• The monitoring equipment must be of a design that makes automatic restart
impossible.
• The pump is supplied with an inspection sensor FLS 10 for sensing the presence of
any liquid in the inspection chamber.
• Information in the junction box shows if the pump is equipped with optional sensors.
Optional sensors
Thermistor
Thermistors are optional sensors for measuring the temperature. They are
connected in series in the stator and activate the alarm at overtemperature.
The sensors are only optional for standard pumps.
NOTICE:
Thermistor must never be exposed to voltages higher than 2.5 V. If the
voltage exceeds this value, for example when the control circuit is tested, the
thermistors will be destroyed.
FLS FLS is a miniature float switch for detection of liquid in the junction box.
Pt 100 Pt100 is a sensor that measures the temperature in the stator and in bearings.
NOTICE:
Never connect the Pt 100 transducer to a voltage higher than 2.5 V.
VIS 10 VIS 10 is a vibration sensor located in the junction box. It measures vibrations
in one direction.
The data plate
The data plate is a metal label that is located on the main body of the products. The data
plate lists key product
specifications. Specially approved products also have an approval
plate.
Product Description
Flygt 3202 Installation, Operation, and Maintenance Manual 13
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