Electromagnetic flow converter wih 360 rotating square screen
Intelligent electromagnetic flowmeter is a kind
of high performance,high precison and high
reliability flowmeter,which is widely used in
petroleum,industry,food.electricity,water
supply,paper-making and medicine industry etc
EMF8 serie electromagnetic flowmeter consisit
of the converter of EMF81,EMF86,EMF89,
EMF8E and the sensor of 01 flange type,02
holder-type,03 insertion type,05 thread-type
and 06 clamped type.
Flange type electromagnetic flowmeter consists
of the converter of EMF89,EMF81,EMF86 and
the sensor of flange type.Flange type sensor
uses the way of connecting the flange with pipe,
It has various types of electrode material and
lining material. The sensor and converter can be
combined into intergrated or split electromagnetic
flowmeter.
Flange type electromagnetic flowmeter can be
widely used not only in genaral process test,but also
in the chemical industry,water-supply,waste-water
monitoring ore pulp or paper plup etc.
Technical data of EMF89 converter
| Display | 4-line English LCD display,directly show the data of forward and reverse flow,percentage of the flow and flow velocity. |
Parameter Setting | Setting the parameter with the botton,ultrared remote control and bluetooth(smart phone). |
| Language | Chinese,English |
| Current Output | 4-20mA, Load Resistance ≤ 500Ω (can choose with HART protocol ) |
| PIO | Can choose passive pulse output,active pulse output,state output/alarm output and contact signal input. |
| Passive pulse output 30VDC(Off),200mA(On); 0.0001~5000HZ; Pulse width:50% duty cycle or the fixed value(≤100ms) |
| Active pulse output 0.0001~2HZ,≤150mA,15VDC±20%;Pulse width:≤100ms(The default value:20ms) |
| State/Alarm Output Contact capacity:30VDC(Off), 20mA(On) |
| Contact Input Passive contact, Load Resistance:closed ≤ 200Ω, disconnected≥100KΩ |
| Communication | RS485(MODBUS-RTU, MODBUS-ASCⅡ) |
| Power Supply | 220VDC, 24VDC, 100-240VAC |
| Alarm | Empty pipe alarm, reverse alarm, upper limit and lower limit alarm. |
| Potection Level | IP67 |
| Accuracy | 0.5, 0.3 |
Explosion-proof Class | Exd(ia) iaq Ⅱ CT3-6 |
| Structure | Intergrated 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.
