Specs at a glance
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Max. measurement error
Volume flow (standard): ±0.5 % o.r. ± 1 mm/s (0.04 in/s)
Volume flow (option): ±0.2 % o.r. ± 2 mm/s (0.08 in/s), Flat Spec - 
                              
Measuring range
0.5 m3/h to 263000 m3/h (2.5gal/min to 1665 Mgal/d)
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Medium temperature range
Liner material hard rubber: 0 to +80 °C (+32 to +176 °F)
Liner material polyurethane: –20 to +50 °C (–4 to +122 °F)
Liner material PTFE: –20 to +90 °C (–4 to +194 °F) - 
                              
Max. process pressure
PN 40, Class 300, 20K
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Wetted materials
Liner material hard rubber: 0 to +80 °C (+32 to +176 °F)
Liner material polyurethane: –20 to +50 °C (–4 to +122 °F)
Liner material PTFE: –20 to +90 °C (–4 to +194 °F)
Electrodes: 1.4435 (316L); Alloy C22, 2.4602 (UNS N06022); Tantalum 
Field of application
With its international approvals for custody transfer as well as drinking water, Promag W serves the broadest variety of applications. It is available as both compact or remote version. Promag W 400 saves time and costs thanks to the broad functionality of its transmitter optimized for Water & Wastewater. In addition, Heartbeat Technology enables measurement reliability and compliant verification.
The bidirectional measuring principle is virtually independent of pressure, density, temperature and viscosity
Ideal for water measurement , e.g. drinking water, utility water and industrial/municipal wastewater
Device properties
International drinking water approvals
Degree of protection IP68 (Type 6P enclosure)
Approved for custody transfer to MI-001/OIML R49
Transmitter housing made of durable polycarbonate or aluminium
WLAN access
Integrated data logger: measured values monitoring
Benefits
Reliable measurement at constant accuracy with 0 x DN inlet run and no pressure loss
Flexible engineering – sensor with fixed or lap-joint process connections
Application fitness – EN ISO 12944 corrosion protection for underground or underwater installation
Improved plant availability – sensor compliant with industry-specific requirements
Safe operation – no need to open the device
Time-saving local operation without additional software and hardware – integrated web server
Integrated verification and build-up detection – Heartbeat Technology
Videos
Extended selection
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High-end products
 - Highly functional and convenient
 
Technical excellence
Simplicity
                              - 
        
Standard products
 - Reliable, robust and low-maintenance
 
Technical excellence
Simplicity
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Specialized products
 - Designed for demanding applications
 
Technical excellence
Simplicity
Variable
| FLEX selections | Technical excellence | Simplicity | 
|---|---|---|
          
 Fundamental selection Meet your basic measurement needs  | 
        
          Technical excellence
           | 
        
          Simplicity
           | 
      
          
 Lean selection Handle your core processes easily  | 
        
          Technical excellence
           | 
        
          Simplicity
           | 
      
          
 Extended selection Optimize your processes with innovative technologies  | 
        
          Technical excellence
           | 
        
          Simplicity
           | 
      
          
 Xpert selection Master your most challenging applications  | 
        
          Technical excellence
           | 
        
          Simplicity
           Variable  | 
      
Predecessor
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                                                    Technical Information (TI)
 
Proline Promag W 400
English version - 09/2021
Electromagnetic flowmeter
EN 01/09/202101/01/202001/02/201901/10/201714/03/2017Language:
English
Version:
01/09/2021
File size:
5.4 MB
File name:
TI01046DEN_1021.pdf
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 - 
                        
                                      
- 
                                                    Operating Instruction (BA)
 
Proline Promag W 400 PROFIBUS DP
English version - 02/2022
Electromagnetic flowmeter
EN 01/02/202201/01/202001/02/201901/10/201701/03/2015Language:
English
Version:
01/02/2022
File size:
6.1 MB
File name:
BA01234DEN_0721-00.pdf
 - 
                                                    
 
- 
                        
- 
                                                            Technical Information (TI)
 
Proline Promag W 400
Electromagnetic flowmeter
EN 01/09/202101/01/202001/02/201901/10/201714/03/2017Language:
English
Version:
01/09/2021
File size:
5.4 MB
File name:
TI01046DEN_1021.pdf
 - 
                                                            
 - 
                        
- 
                                                            Operating Instruction (BA)
 
Proline Promag W 400 PROFIBUS DP
Electromagnetic flowmeter
EN 01/02/202201/01/202001/02/201901/10/201701/03/2015Language:
English
Version:
01/02/2022
File size:
6.1 MB
File name:
BA01234DEN_0721-00.pdf
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 - 
                        
- 
                                                            Operating Instruction (BA)
 
Proline Promag W 400 EtherNet/IP
Electromagnetic flowmeter
EN 01/02/202201/01/202001/02/201901/10/201701/03/2015Language:
English
Version:
01/02/2022
File size:
6.4 MB
File name:
BA01214DEN_0721-00.pdf
 - 
                                                            
 - 
                        
- 
                                                            Operating Instruction (BA)
 
Proline Promag W 400 HART
Electromagnetic flowmeter
EN 01/09/202101/01/202001/02/201901/10/201714/03/2017Language:
English
Version:
01/09/2021
File size:
7 MB
File name:
BA01063DEN_0921.pdf
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 - 
                        
- 
                                                            Operating Instruction (BA)
 
Proline Promag W 400 Modbus RS485
Electromagnetic flowmeter
EN 01/02/202201/01/202001/02/201901/10/201701/03/2015Language:
English
Version:
01/02/2022
File size:
6 MB
File name:
BA01231DEN_0621-00.pdf
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- 
                                                            Device Parameter (GP)
 
Proline Promag 400 HART
Electromagnetic flowmeter
EN 01/09/202114/03/201707/12/2015Language:
English
Version:
01/09/2021
File size:
2 MB
File name:
GP01043DEN_0321.pdf
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- 
                                                            Device Parameter (GP)
 
Proline Promag 400 EtherNet/IP
Electromagnetic flowmeter
EN 01/02/202223/12/2015Language:
English
Version:
01/02/2022
File size:
1.5 MB
File name:
GP01046DEN_0221-00.pdf
 - 
                                                            
 - 
                        
- 
                                                            Device Parameter (GP)
 
Proline Promag 400 Modbus RS485
Electromagnetic flowmeter
EN 01/02/202223/12/2015Language:
English
Version:
01/02/2022
File size:
2 MB
File name:
GP01045DEN_0221-00.pdf
 - 
                                                            
 - 
                        
- 
                                                            Device Parameter (GP)
 
Proline Promag 400 PROFIBUS DP
Electromagnetic flowmeter
EN 01/02/202223/12/2015Language:
English
Version:
01/02/2022
File size:
1.8 MB
File name:
GP01044DEN_0221-00.pdf
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                                                            Short Instruction (KA)
 
Flowmeter Proline 400
PROFIBUS DP transmitter
with electromagnetic sensorEN 01/02/202201/02/2019Language:
English
Version:
01/02/2022
File size:
3.4 MB
File name:
KA01420DEN_0221-00.pdf
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