Explosion Proof Exd IIBT4 Type Electromagnetic Flow Meter IP68
Electromagnetic FlowMeter
Introduction
Electromagnetic flow meter can realize local indication and output
electrical current signal of 4-20mA which can be used to record,
adjust and control. Electromagnetic flow meters are widely used in
industrial sectors such as chemical industry, environmental
protection, metallurgy, pharmaceutical, paper making, water supply
and removal etc.
Besides measuring flow of general conductive liquid electromagnetic
flow meter can measure flow of liquid-solid mixed fluid,
high-viscosity fluid and salt, strong acid and strong alkali.
Features
1. Simple structures, firm, no movable parts and long operation
life.
2. No intercepting fluid parts, no pressure loss and fluid
clogging.
3. No mechanical inertia, quick response and good stability,
application in automatic examination, adjustment & controlling.
4. Measuring accuracy not influenced by physical parameters such as
style, temperature, viscosity, density and pressure.
6. Supply many styles of flow meters such as inline type and
insertion type, etc.Adopt EEPROM memory to measure operation data,
safe and reliable protection of memory.
7. High pressure sensor with PFA liner is resistant to high pressure
and negative pressure, and available to chemistry and corrosive
solution.
8. It is applicable not only to general process, but also in tough
applications such as mining, papermaking, pastry, etc.
Parameters
| Main power | AC220V 50HZ / DC24V |
| Power consumption | <15W (And set with sensor supporting power consumption ) |
| Display and push buttons | The big screen LCD display with back lighting can display the
instantaneous flow ,total flow and percentage of flow as well as
alarm display ,four thin-film touch nubs ,which is used to data set
. |
| Accumulator | Forward total quantity ,reverse total quantity |
Output signal |
Analog output | Bi-direction with two ways ,Isolation 0-10mA/4-20mA |
| Load resistor:0-10Ma;0-1.5KΩ;4-20Ma;0-750Ω |
| Frequency output | Forward & reverse flow output with frequency range set between
1-5000Hz.The external voltage must be lower than 35V and the max
output and the max output current is 50Ma when the transistor is
turned on |
Alarm output | Two outputs from the collectors of photoelectric isolate
transistors are for alarm signals .The external voltage must be
lower than 35V and the max output current is 250Ma when the
transistor is turned on.Alarm status:Activates when the measured
pipes are empty ,the excitation circuits are broken or the volume
of flow rate exceeds the value designed limits. |
Pulse output | For pulse output in forward and reverse flow measurement ,upper
frequency of pulse output can be up to 5000 CP/S relevant value of
pulse is from 0.0001 to 1.0 M3/P .The width of pulse can be set to
20ms or squired wave from automatically.The collector of transistor
with photoelectric is open circuited.The external voltage must be
lower than 35 V and maximum output current is 250Ma when the
transistor is turned on . |
| Accuracy | ±0.5% of the value displayed ,±0.3% or ±0.2% are selectable. |
| Damping time constant | Continuous variable from 0-100 s (90%)can be selected by group |
| Communication | RS232 ,RS485 or HART Communication are selectable ,with lighting
resistance |
| Power failure | An anti-failure clock is designed in the flow meter which can save
the power failure records for 16 times (10 years) |
| Protection class | IP65 |
| Ex-proof grade | Exd IIBT4 |
Electrode Material
| Electrode Material | Decay Resistance |
| 316L | Used for industrial water, water, sewage, weak corrosive medium, it
is widely used in petroleum, chemical, urea, vinylon and other
industries. |
| Stainless steel with Tungsten carbide | Used for the medium of no corrosion and strong up to wear and tear. |
| Hartz alloy B(HB) | It has good corrosion resistance of Below boiling point for all the
concentration of hydrochloric acid, also resistant to corrosion of
sulfuric acid, phosphoric acid, hydrofluoric acid, organic acids
and other non oxidizing acid, alkali, oxidation of salt solution |
| Hartz alloy C(HC) | Resist corrosion of Oxidizing acid ,such as nitric acid and mixed
acid or a combination of chromic acid and sulfuric acid medium.
also resist corrosion of Oxidizing salt as Fe++ +, Cu++ or contain
other oxidants, Such as corrosion of a higher than normal
temperature hypochlorite solution, sea water. |
| (Ti) | Resist corrosion of Sea water, all kinds of chloride and
hypochlorite, oxidizing acid (including fuming nitric acid),
organic acid, alkali, not resist corrosion of a pure resistance
reducing acid such as sulfuric acid, hydrochloric acid. But if acid
contains antioxidants (such as nitric acid, Fe++ +, Cu++), the
corrosion is greatly reduced. |
| (Ta) | With excellent corrosion resistance, it is similar with glass,
except hydrofluoric acid, fuming sulfuric acid, alkali, almost
resist to corrosion of all the chemical can medium (including
hydrochloric acid, sulfuric acid and aqua regia). |
| Platinum - iridium alloy | Almost Apply to all chemicals, but not apply to aqua regia and
ammonium salt. |
Model selection
Application
