| Model Number: | Teren-EFM |
|---|---|
| Brand Name: | Teren |
| Place of Origin: | China (Mainland) |
Quick Details
Specifications
Description:
TR-DC
series electromagnetic flow meters follow the Faraday law of
electromagnetic induction.They can be used to accurately measure the
flow rate of liquids which are electrical conducting, caustic, and mixed
with liquids and solids.They are widely used throughout industries of
petroleum, chemical engineering,pharmacology,paper making,electric
power, environmental protection and so forth.
Features:
No moving parts, virtually no pressure loss;
Corrosion protection,abrasion resistant;
High accuracy,stable performance;
High level of anti-vibration and anti-jamming,wide measuring dimensions.
Multi-output interface:4-20mA,Pulse,Alarm outputs,RS485 and MODBUS communication.
Working principle:
Structure:
TR-DC series electromagnetic flow meters are made up of sensor and
transducer,together with LCD screen,current and pulse output,alarm
signal and RS-485 communication.
Operating principle:
Faraday's laws of induction from the basis for the electromagnetic flow
meters.It states that a voltage is induced in a conductor as it moves
through a magnetic filed.
This principle is applied to a conductive fluid which flows through a
magnetic field generated perpendicular to the flow direction(see
Schematic).
The voltage induced in the fluid is measured at two
electrodes,installed diametrically opposed.This signal voltage UE is
proportional to the magnetic induction B, the electrode spacing D are
constants,a proportionality exists between the signal voltage UE and the
average flow velocity v. The equation for the volume flow shows that
the signal voltage UE is linear and proportional to the volume flow
rate. The induced signal voltage is processed in the converter into
scaled, analog and digital signals.
Technical parameters:
|
Nominal meter size |
10-2200mm(3/8 to 86 inch) |
|
Accuracy |
±0.5% |
|
Minimum Conductivity |
>5μs/cm |
|
Fluid temperature |
-25 to 60°C(-13 to 140°F) -25 to 180°C(-13 to 356°F)(opt.) |
|
Liner |
CR,FEP,PTFE,PFA |
|
Ambient temperature |
-10 to 60°C(14 to 140°F) |
|
Electrode material |
SS316L(Standard),Hastelloy,Tantalun,Titanium,Tungsten Carbide(Upon requirements) |
|
Current Output |
0 to 10mA or 4 to 20mA |
|
Frequency Output |
0 to 5000Hz with photoelectric isolation |
|
Pulse Output |
Adjustable from 0.001 to 1000Ltr/Pulse |
|
Alarm Output(opt.) |
Upper Alarm-ALMH,Lower Alarm-ALML with photoelectric isolation Upper Alarm-ALMH,Lower Alarm-ALML with photoelectric isolation |
|
Communications(opt.) |
RS-232 without galvanic isolation RS-485 with galvanic isolation MODBUS |
|
Power supply |
85 to 250VAC(45 to 63Hz) 20-36VDC |
|
Power |
S<10QW/AC S<7.5W/DC |