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 ensures compliance and process safety at all times.
● Flexible engineering – sensor with welded or lap-joint process connections
● Reliable measurement – accurate measured values even with 0 DN inlet run
●Improved plant availability – sensor compliant with industry-specific requirements
● 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
● 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
● Compact dual-compartment housing with up to 3 I/Os
● Backlit display with touch control and WLAN access
● Remote display available
Product headline
Specialist for demanding water and wastewater applications with a compact, easily accessible transmitter. Dedicated to the measurement of industrial or municipal water and wastewater.
Sensor features
Flexible engineering – sensor with welded or lap-joint process connections. Reliable measurement – accurate measured values even with 0 DN inlet run. 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.
Nominal diameter range
DN 25 to 2400(1 to 90″)
Wetted materials
Liner: Polyurethane; Hard rubber, PTFE
Electrodes: 1.4435 (316L); Alloy C22, 2.4602 (UNS N06022); TantalumMeasured variables
Volume flow, conductivity, mass flow
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 SpecMeasuring range
9 dm³/min to 162 000 m³/h (2.5 gal/min to 100 000 gal/min)
Max. process pressure
PN 40, Class 300, 20K
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 316LTransmitter housing material
AlSi10Mg, coated; 1.4409 (CF3M) similar to 316L; stainless steel for hygenic transmitter design
Display/Operation
4-line backlit display with touch control (operation from outside)
Configuration via local display and operating tools possible
Remote display availableOutputs
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 outputInputs
Status input 4-20 mA input
Digital communication
HART, PROFIBUS DP, PROFIBUS PA, FOUNDATION Fieldbus, Modbus RS485, Profinet, Ethernet/IP, OPC-UA
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
Product safety
CE, C-tick, EAC marking
Functional safety
Functional safety according to IEC 61508, applicable in safety-relevant applications in accordance with IEC 61511
Metrological approvals and certificates
Calibration performed on accredited calibration facilities (acc. to ISO/IEC 17025), NAMUR
Heartbeat Technology complies with the requirements for traceable verification according to ISO 9001:2008 – Section 7.6 a (TÜV-attestation)Marine approvals and certificates
LR approval
Pressure approvals and certificates
CRN, PED
Material certificates
3.1 material
Hygienic approvals and certificates
ACS, KTW/W270, NSF 61, WRAS BS 6920