Battery Powered Electromagnetic Flow Meter
GPRS GSM BATTERY ELECTROMAGNETIC FLOW METER
Nominal diameter | DN6-DN3000 |
Power supply | 3.6V battery type |
Signal output | 0-10mA/4-20mA 0-5V/0-10V pulse/freq |
Liner material | Neoprene PTFE FEP PF PU Ceramic |
Electrode | SUS316L, HB, HC, Ti, Ta and etc |
Flange standard | ANSI, DIN, JIS(Accept customization) |
Communication | Modbus, Profibus, Hart, GPRS/GSM |
CHARACTERS OF MAGNETIC FLOW METER
1. Measuring accuracy will not be influenced by medium temperature, pressure, viscosity, density and physical parameter; as long as the conductivity of measured medium more than 20μs/cm, and indication will not be influenced by conductivity changes. |
HOW TO CHOOSE LINER OF MAGNETIC FLOWMETER
Liner material | Main performance | Application |
Neoprene | Good elasticity and high breaking tenacity,good wearing resistance performance; resist common concentrated acid,alkali and salt. | 1.Max temperature of medium is 80C;2.mainly used to measure water, sewage, slurry and pulp etc. |
PTFE | The chemical performance of PTFE is the most stable in all plastics, and resist boiled hydrochloric acid, sulfuric acid,nitric acid aqua regia, concentrated alkaline and kinds of organic solutions; food degree material. | Temperature of medium: -40C to 180C;mainly used to strong corrosive medium like concentrated acid, alkali and sanitary medium. |
PU (Polyurethane) | With excellent wear resisting property(equals to ten times of natural rubber);but bad acid and alkali resisting property; | Max temperature of medium should be less than 80C; used to measure pulp and coal slurry with middle strong abrasion |
FEP | Chemical performance is similar with PTFE, negative pressure resisting property is better than PTFE; food degree material, price is higher. | Same with PTFE |
PFA | Chemical performance is similar with PTFE; with good negative pressure resisting property; food degree material, price is higher. | Same with PTFE |
ELECTRODES SELECTION OF MAG FLOW METER
Electrodes material | Main performance and application |
SUS316L | Used to industrial water, life water and sewage etc, with weak corrosion performance; apply to petroleum, chemical, metallurgy industries, and municipal and environmental protection fields. |
HB | With good corrosion resistance performance to all concentrations of hydrochloric acid below the boiled point; also resist sulfuric acid, phosphoric acid, hydruoric acid, organic acid and other non-oxidizing acid, alkali and hydrochloric acid etc. |
HC | Resist non-oxidizing acid, such as the mixture of nitric acid/chromic acid and sulfuric acid; and resist oxidizing salt, such as Fe3+,Cu2+ and other oxidizing agents like hypochlorite solution and sea water etc. |
Titanium | Resist sea water, kinds of chlorides, hypochlorite, oxidizing acid (including introsonitric acid). organic acid and alkali etc, but do not resist purified reductic acid (sulfuric acid, hydrochloric acid); Corrosion will reduce greatly when it has only oxidzing agent(like nitric acid and ionic mediums with Fe, Cu ) in the acid. |
Tantalum | Good corrosion resistant property, which is similar with glass; it could almost resist all chemical mediums (including boiling hydrochloric acid, nitric acid and sulfuric acid below 175C), but do not resist hydrofluoric acid, strong sulfuric acid and alkali. |
Stainless steel coated with tungsten carbide | Used to strong wearing mediums without corrosion. |
