0.06 dm3/min to 600 m3/h (0.015 gal/min to 2650 gal/min)
Medium temperature range
0 to +60 °C (+32 to +140 °F), 0 to +80 °C (+32 to +176 °F), –20 to +50 °C (–4 to +122 °F), –20 to +180 °C (–4 to +356 °F), –20 to +150 °C (–4 to +266 °F)
Promag S is the specialist for inhomogeneous, abrasive and corrosive fluids. The robust sensor design, featuring industry-optimized liners, enables its use in most challenging surroundings and metering jobs such as sewage treatment, pulp and paper production or in the primaries and metals industry. Due to its high-performance transmitter, Promag 55S not only measures flow reliably, but also calculates solids content at low maintenance requirements.
The bidirectional measuring principle is virtually independent of pressure, density, temperature and viscosity
Ideal for the most demanding applications with high solids content and high abrasion.
Device properties
Intensified coil system
Large range of liners
Solids content up to 80 % by weight
4-line backlit display with touch control
Two switch outputs
HART, PROFIBUS PA/DP, FOUNDATION Fieldbus
Benefits
Superb signal stability due to unique signal processing
Maximum safety – industry-optimized measuring electrodes and linings
Energy-saving flow measurement – no pressure loss due to cross-section constriction
Maintenance-free – no moving parts
Highest performance – with integrated solids measurement for demanding fluids
Bath Ales approached Endress+Hauser for help to reduce water usage in their new brewery. A solution involving instrumentation, data collection panels and software has resulted in impressive savings.
The Vialit Group manufactures various products for road maintenance. Mixing semifinished products requires exact measurement of flow rate and viscosity. Promass I 500 delivers this with distinction.
Read how Hölscher Wasserbau extracts, treats and reintroduces groundwater sustainably during the construction of the A-Nord high-voltage DC power line, while adhering to environmental regulations.
Bonumose decided to enhance, automate and digitalize its tagatose sweetener manufacturing process with Endress+Hauser instrumentation to reach its company growth goals
The flowmeter with outstanding abrasion resistance and integrated solids content diagnostics. Superb signal stability due to unique signal processing. Ideal for the most demanding applications with high solids content and high abrasion.
Sensor features
Maximum safety – industry-optimized measuring electrodes and linings. Energy‐saving flow measurement – no pressure loss due to cross section constriction. Maintenance‐free – no moving parts. Intensified coil system. Large range of liners. Solids content up to 80 % by weight.
Transmitter features
Highest performance – with integrated solids measurement for demanding fluids. Highest safety – integrated electrode cleaning. Automatic recovery of data for servicing. 4-line backlit display with touch control. Two switch outputs. HART, PROFIBUS PA/DP, FOUNDATION Fieldbus.
0.06 dm3/min to 600 m3/h (0.015 gal/min to 2650 gal/min)
Max. process pressure
PN 40, Cl. 300, JIS 20 K
Medium temperature range
0 to +60 °C (+32 to +140 °F), 0 to +80 °C (+32 to +176 °F), –20 to +50 °C (–4 to +122 °F), –20 to +180 °C (–4 to +356 °F), –20 to +150 °C (–4 to +266 °F)
Ambient temperature range
–40 to +60 °C (–40 to +140 °F)
Sensor housing material
Aluminum coated AlSi10Mg, carbon steel with protective varnish
Transmitter housing material
Powder-coated die-cast aluminum
Degree of protection
Standard: IP 67 (Type 4X enclosure) for transmitter and sensor Optional: IP 68 (Type 6P enclosure) for remote version of Promag S sensor
Display/Operation
Liquid-crystal display: illuminated, four lines with 16 characters per line Onsite operation with three optical sensor keys
Outputs
4...20mA (active/passive) Pulse-/ Frequency output (active/passive) Two status outputs
Inputs
Status Current input
Digital communication
HART, PROFIBUS DP/PA, FOUNDATION Fieldbus
Power supply
AC 20 to 260 V DC 20 to 64 V
Hazardous area approvals
ATEX, FM, CSA, UK Ex
Product safety
CE, C-tick, EAC marking
Pressure approvals and certificates
CRN, PED
Material certificates
3.1 material
Hygienic approvals and certificates
Drinking water approval:ACS, KTW-BWGL, NSF 61, WRAS BS 6920
Proline Promag 55
FOUNDATION Fieldbus
Operating Instructions
Operating Instruction (BA)
English version - 05/2026
New version available in English
Electromagnetic Flow Measuring System for liquids with solids content or inhomogeneous liquids. The description of the device fu nctions are in a separate documentation.
Electromagnetic Flow Measuring System for liquids with solids content or inhomogeneous liquids. The description of the device functions are in a separate documentation.
Electromagnetic Flow Measuring System for liquids with solids content or inhomogeneous liquids. The description of the device functions are in a separate documentation.