Pump monitoring MAS 801 Pump Monitoring System

Overview Specifications Solutions Documentation & Tools


Product Features
  • Early warnings from changes in current, temperature, leakage and vibration to reduce premature shutdowns 
  • 10 separate warning parameters identify part wear and tear 
  • Color HMI touchscreen ranging from 7” to 15” with up to 10 pumps side-by-side for quick station overview 
  • Web tool with real-time access to pump data for easy handling, same great station overview and analysis from any device such as a tablet or phone 
  • Signal cable eliminated, using screened and twisted lead pairs SUBCAB cable 
  • Pump memory with factory set-points and pump id, simplifying installation and maintenance 
  • Extensive black box incident recording associated with alarms 
  • SCADA connectivity, openness and remote communication 
  • Root cause suggestions help troubleshoot failures for faster system restarts


MAS 801 is designed to further enhance the outstanding reliability of a Flygt pump with 24/7 on-site overview of pump data and continuous station health check, to detect failures before they can do damage. As part of a complete Flygt pumping system, MAS helps reduce costs over a pump’s lifetime. With three-axis vibration, current, temperature and leakage measurements to alarm of deviating values, the operator is able to take early and preventive measures. The “black-box” sensor data linking the alarm items with logged data, provides a unique fault tracing feature. Power and communication signals combined through a single cable and the pre-configured pump memory with individual alarm set-points and asset data, facilitates startup and maintenance. 


MAS 801 measures, records and monitors different values that can be plotted or exported:

Standard monitoring 

  • Motor temperature 
  • Main bearing temperature 
  • Leakage monitoring in the stator housing and junction box 
  • Pump current in one phase 
  • Vibration in three-axis 
  • Running time & number of starts 

Optional monitoring 

  • Motor temperature in three phases 
  • Support bearing temperature 
  • Water in oil detection 

Optional power analyzer 

  • Pump current in three phases 
  • Current imbalance 
  • Voltage in three phases 
  • Voltage imbalance 
  • Power factor 
  • Power 
  • Energy (kW-hours)

Flygt MAS 801 is suitable for 3000, 5000 & 7000 series pumps.



Technical Data
Central Unit
Base unit
Operator panel FOP 402
Pump Electronic Module
-20°C – +65°C (-4°F – +149°F) 90% relative humidity, non-condensing
-20°C – +65°C (-4°F – +149°F) 90% relative humidity, non-condensing
– 20°C to +60°C (-4°F to +140°F) 20-90% relative humidity
-20°C to +125°C (-4°F to +257°F), except built-in accelerometer: -40°C to +105°C (-40°F to +221°F)
Supply voltage
24 VDC -15%/+20%, Class II power supply only
24 VDC -15%/+20%, Class II power supply only
Power supply required
Maximum 10 W
Maximum 10 W
Relay contact rating
GO-relay: 250V AC, 8(3)A; A-Alarm: 250V AC, 4A
GO-relay: 250V AC, 8(3)A; A-Alarm: 250V AC, 4A; DI 1: 12 V DC output. For connection of a volt free contact. Configurable for alarm input or alarm reset.
External communication
Ethernet (RJ45 socket), RS485/Modbus,RTU (slave), USB, Devicenet (to BU)
Ethernet (RJ45 socket), RS485/Modbus RTU (slave), PEM (Pump Electronic Module)
Ingress protection
IP20, back side, IP65, front side
Dimensions (H x D x W)
(122x113x45) mm / (4.8x4.45x1.77) inch
(122x113x45) mm / (4.8x4.45x1.77) inch
(140 x36,5x197) mm / (5.5x1.44x7.76) inch
(83x18x150) mm / (3.27x0.71x5.91) inch
Power Supply
12 V DC from Base unit
Thermal contacts/PTC-thermistor: Short circuit warning (thermistor) Pt100 inputs (5): Short circuit and interruption warning Leakage sensor inputs (3): 12 V DC, current sensing 0/4-20 mA configurable 24 V DC Current transformer input: For current transformer Vibration sensor, 3-axis Integrated micro electro mechanical system (MEMS)


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Documentation & Tools

Documentation & Tools