
Proline Promag W 300 for the water and wastewater industry
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: Polyurethane; Hard rubber, PTFE
Electrodes: 1.4435 (316L); Alloy C22, 2.4602 (UNS N06022); Tantalum
Field of application
The premium device for water and wastewater measurement Promag W 300 was designed for reliable use in hazardous areas and under harsh conditions. Its compact transmitter offers high flexibility in terms of operation and system integration: access from one side, remote display and improved connectivity options. Heartbeat Technology enables measurement reliability and compliant verification.
The bidirectional measuring principle is virtually independent of pressure, density, temperature and viscosity
Dedicated to the measurement of industrial or municipal water and wastewater
Device properties
International drinking water approvals
Degree of protection IP68 (Type 6P enclosure)
Approved for custody transfer to MI-001/OIML R49
Compact dual-compartment housing with up to 3 I/Os
Backlit display with touch control and WLAN access
Remote display available
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
Full access to process and diagnostic information – numerous, freely combinable I/Os and Ethernet
Reduced complexity and variety – freely configurable I/O functionality
Integrated verification – Heartbeat Technology
Videos
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The world's first electromagnetic flowmeter for unrestricted measurements
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Accuracy on a large scale – Production and calibration of electromagnetic flowmeters up to DN 3000 (120")
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Heartbeat Verification
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The Electromagnetic Flow Measuring Principle
Extended selection
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High-end products
- Highly functional and convenient
Technical excellence
Simplicity

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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 |
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Fundamental selection Meet your basic measurement needs |
Technical excellence
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Simplicity
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Lean selection Handle your core processes easily |
Technical excellence
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Simplicity
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Extended selection Optimize your processes with innovative technologies |
Technical excellence
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Simplicity
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Xpert selection Master your most challenging applications |
Technical excellence
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Simplicity
Variable |
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Measuring principle
Electromagnetic
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Product headline
Specialist for demanding water and wastewater applications with a compact, easily accessible transmitter.
Reliable measurement at constant accuracy with 0 x DN inlet run and no pressure loss.
Dedicated to the measurement of industrial or municipal water and wastewater . -
Sensor features
Flexible engineering – sensor with fixed or lap-joint process connections. Long-term operation – robust and completely welded sensor. Improved plant availability – sensor compliant with industry-specific requirements.
International drinking water approvals. -
Transmitter features
Full access to process and diagnostic information – numerous, freely combinable I/Os and fieldbuses. Reduced complexity and variety – freely configurable I/O functionality. Integrated verification – Heartbeat Technology.
Compact dual-compartment housing with up to 3 I/Os. Backlit display with touch control and WLAN access. Remote display available. -
Nominal diameter range
DN 25 to 3000(1 to 120")
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Wetted materials
Liner: Polyurethane; Hard rubber, PTFE
Electrodes: 1.4435 (316L); Alloy C22, 2.4602 (UNS N06022); Tantalum -
Measured variables
Volume flow, conductivity, mass flow
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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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Max. process pressure
PN 40, Class 300, 20K
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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) -
Ambient temperature range
Flange material carbon steel: –10 to +60 °C (+14 to +140 °F)
Flange material stainless steel: –40 to +60 °C (–40 to +140 °F) -
Sensor housing material
DN 25 to 300 (1 to 12"): AlSi10Mg, coated
DN 25 to 2400 (1 to 90"): Carbon steel with protective varnish
Sensor connection housing (standard): AlSi10Mg, coated
Sensor connection housing (option): Polycarbonate; 1.4409 (CF3M) similar to 316L -
Transmitter housing material
AlSi10Mg, coated; 1.4409 (CF3M) similar to 316L; stainless steel for hygenic transmitter design
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Display/Operation
4-line backlit display with touch control (operation from outside)
Configuration via local display and operating tools possible
Remote display available -
Outputs
3 outputs:
4-20 mA HART (active/passive)
4-20 mA WirelessHART
4-20 mA (active/passive)
Pulse/frequency/switch output (active/passive)
Double pulse output (active/passive)
Relay output -
Inputs
Status input 4-20 mA input
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Digital communication
HART, PROFIBUS DP, PROFIBUS PA, FOUNDATION Fieldbus, Modbus RS485, PROFINET, PROFINET over Ethernet-APL, Ethernet/IP, OPC-UA
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Power supply
DC 24 V
AC 100 to 230 V
AC 100 to 230 V / DC 24 V (non-hazardous area) -
Hazardous area approvals
ATEX, IECEx, cCSAus, INMETRO, NEPSI, EAC; JPN, UK Ex, KC
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Product safety
CE, C-tick, EAC marking
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Functional safety
Functional safety according to IEC 61508, applicable in safety-relevant applications in accordance with IEC 61511
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Metrological approvals and certificates
Calibration performed on accredited calibration facilities (acc. to ISO/IEC 17025), NAMUR
Heartbeat Technology complies with the requirements for measurement traceability according to ISO 9001:2015 – Section 7.1.5.2 a (TÜV SÜD attestation) -
Marine approvals and certificates
LR approval, DNV approval, ABS approval, BV approval
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Pressure approvals and certificates
CRN, PED
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Material certificates
3.1 material
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Hygienic approvals and certificates
ACS, KTW/W270, NSF 61, WRAS BS 6920
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Technical Information (TI)
Proline Promag W 300
English version - 08/2022
New version available in English
Electromagnetic flowmeter
EN 01/08/202216/09/201915/07/201901/02/2019Language:
English
Version:
01/08/2022
File size:
12.1 MB
File name:
TI01414DEN_0422-00.pdf
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Operating Instruction (BA)
Proline Promag W 300
English version - 08/2022
New version available in English
Electromagnetic flowmeter HART
EN 01/08/202201/01/202001/09/201901/02/2019Language:
English
Version:
01/08/2022
File size:
9.5 MB
File name:
BA01918DEN_0422-00.pdf
-
-
-
Technical Information (TI)
Proline Promag W 300
-
Technical Information (TI)
English version - 08/2022Electromagnetic flowmeter
EN 01/08/202216/09/201915/07/201901/02/2019Language:
English
Version:
01/08/2022
File size:
12.1 MB
File name:
TI01414DEN_0422-00.pdf
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Operating Instruction (BA)
Proline Promag W 300 EtherNet/IP
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Operating Instruction (BA)
English version - 01/2020Electromagnetic flowmeter
EN 01/01/202001/02/2019Language:
English
Version:
01/01/2020
File size:
8.1 MB
File name:
BA01937DEN_0220.pdf
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Operating Instruction (BA)
Proline Promag W 300 PROFIBUS PA
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Operating Instruction (BA)
English version - 01/2020Electromagnetic flowmeter
EN 01/01/202001/02/2019Language:
English
Version:
01/01/2020
File size:
6.9 MB
File name:
BA01928DEN_0220.pdf
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Operating Instruction (BA)
BA Proline Promag W 300
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Operating Instruction (BA)
English version - 01/2024Electromagnetic flowmeter
PROFINET with Ethernet-APLEN 10/01/2024Language:
English
Version:
10/01/2024
File size:
7.4 MB
File name:
BA02104DEN_0122-00.pdf
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Operating Instruction (BA)
Proline Promag W 300
-
Operating Instruction (BA)
English version - 08/2022Electromagnetic flowmeter
HARTEN 01/08/202201/01/202001/09/201901/02/2019Language:
English
Version:
01/08/2022
File size:
9.5 MB
File name:
BA01918DEN_0422-00.pdf
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Operating Instruction (BA)
Proline Promag W 300 FOUNDATION Fieldbus
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Operating Instruction (BA)
English version - 01/2020Electromagnetic flowmeter
EN 01/01/202001/02/2019Language:
English
Version:
01/01/2020
File size:
7.1 MB
File name:
BA01938DEN_0220.pdf
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Operating Instruction (BA)
Proline Promag W 300 PROFINET
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Operating Instruction (BA)
English version - 01/2020Electromagnetic flowmeter
EN 01/01/202016/09/201915/07/201901/02/2019Language:
English
Version:
01/01/2020
File size:
9.7 MB
File name:
BA01941DEN_0420.pdf
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Operating Instruction (BA)
Proline Promag W 300 PROFIBUS DP
-
Operating Instruction (BA)
English version - 01/2020Electromagnetic flowmeter
EN 01/01/202001/02/2019Language:
English
Version:
01/01/2020
File size:
7 MB
File name:
BA01940DEN_0220.pdf
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Operating Instruction (BA)
Proline Promag W 300
-
Operating Instruction (BA)
English version - 08/2022Electromagnetic flowmeter
Modbus RS485EN 01/08/202201/01/202001/09/201901/02/2019Language:
English
Version:
01/08/2022
File size:
8.5 MB
File name:
BA01939DEN_0422-00.pdf
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Device Parameter (GP)
Proline Promag 300 PROFIBUS DP Description of Device Parameters
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Device Parameter (GP)
English version - 06/2018Electromagnetic flowmeter
Proline Promag 300
PROFIBUS DPEN 01/06/2018Language:
English
Version:
01/06/2018
File size:
2.2 MB
File name:
GP01135DEN_0118.pdf
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