Wireless Monitoring System modbus water flow meter data logger
EMF88 type electromagnetic flowmeter is the flowmeter designed specially for
the water industry. It completely solves
the problem of easily clogged and
difficult measuring when the flow is
small with the traditional mechanical
water meter, achieving the accurate
measurement of water flow.
EMF88 type electromagnetic flowmeter is a new instrument developed on the basis of the external powered electromagnetic flowmeter.
It’s powered by the built-in lithium battery and
can be installed in the outdoor pipe which can’t
connect with the external power. It’s applied
in the occasion of area measurement of water
supply network,surface and underground water
measurement and agricultural irrigation measurement.
♦ Battery powered, no need to pull the electrical wiring. ♦ No moving parts in the measured pipe,less pressure
loss and no more easily clogged.
♦ With the unique structure design and bidirectional
flow function,can accurately measure the tiny flow
and ensure the accurate measurement.
♦ Reliable performance,long-term operation without
maintenance
♦ The system can be networked by the GPRS wireless
transmission,easy for maintenance and
management.
♦ Can choose solar power.
Technical data of EMF88 electromagnetic water meter
| Display | LCD display the data of instantaneous flow,accumulative flow and flow velocity |
| Communication | RS485 |
| Power Supply | 3.6V Lithium Battery |
| Temperature | -20℃~+50℃ |
| Humidity | 5%~95% |
| Protection Level | IP65,IP67,IP68 |
| Accuracy | 1.0,0.5 |
| Structure | Integrated Type,Split Type |
Technical data of Flange type sensor
| Application | All conductive liquid including water,beverage,various of corrosive media and liquid-solid two-phase fluid(mud,paper pulp). |
| Diameter | DN3~DN2000 |
| Pressure | 0.6~4.0MPa(Depend on the different diameters,reference sheet 1,special pressure can be customized) |
| Electrde Material | SS316L,Hc,Hb,Ti,Ta,W,Pt |
| Lining Material | Ne,PTEE,PU,FEP,PFA |
| Temperature | -40~180 ℃(Note:limited by the lining material's temperature resistance,reference sheet 7) |
| Shell Material | Carbon steel(Stainless steel can be customized) |
| Protection Level | IP65,IP67,IP68 |
| Connection | GB/T9119-2010(Can connect with HG20593-2009 flange directly),JIS,ANSI or customized. |
Main performance of the electrode materials
| Material | Code | Performance of Corrosion Resistance |
| 316L | V | Used in industrial water,domestic water,sewage,neutral solution and the weak acid such as carbonic acid and acetic acid. |
| Hastelloy Alloy C | Hc | Oxidation resistance acid,such as nitric acid,mixed acid,complex acid mixed with sulfuric acid.Have good corrosion resistance to seawater,alkali solution and chloride solution. Inapplicable occasion:hydrochloric acid and Hydrofluoric acid. |
| Hastelloy Alloy C | Hb | Has good corrosion resistance to non-oxidative acid,alkali,salt. Inapplicable occasion:nitric acid. |
| Ti | Ti | Have good corrosion resistance to sea water,chloride,hypochlorite and various hydroxides. Inapplicable occasion:reducing acids like hydrochloric acid,sulfuric acid,hydrofluoric acid. |
| Ta | Ta | Almost have the corrosion resistance to all chemical media,generally used for hydrochloric acid and sulfric acid. Inapplicable occasion:hydrofluoric acid,alkali and fuming sulfric acid. |
| Tungsten Carbide | W | Have good wear resistance,used for the wearing media such as mud and paper pulp,but with poor corrosion resistance. |
| Platinum-iridium Aloy | Pt | Besides aqua acid and ammonium salt,almost have the corrosion resistance to all acid,alkali and salt solution. |
Lining Material Selection
♦ For high-temperature media(>=140℃), preference for PFA lining
♦ For easy scaling media such as paper pulp,preference for FEP or PFA lining.
♦ For the media with sanitation requirement should select FEP(or PTEE)lining .
♦ In case of negative-pressure, should select FEP.
♦ For the wearng media such slurry and pulp should select PU or FEP lining.
