Brief introduction
Hollysys Series magnetic flow meter is intended for fluid metering in most industries including water, waste?water, food and beverage, pharmaceutical and chemical.
The basic components of an electromagnetic flow meter are: ?
The sensor/ detector, which includes the flow tube, isolating liner and measuring electrodes
The converter/ transmitter, which is the electronic device responsible for the signal processing, flow calculation, display and output signals.
Each meter is factory tested and calibrated.?A calibration certificate is included with each meter.
This high pressure electromagnetic flow meter adopt high pressure flange, and pressure test in production, special designed for high pressure line, such as 10bar, 16bar, 20bar, 25bar, 40bar, 63bar,100bar,250bar, etc.
Features
DN 6 to DN3000 covers a wide range of pipe size.
Flow measurement range up to 1500:1.
High pressure flange are optional, 25bar, 40bar, 63bar, 100bar.
Strict pressure test and calibration production process for each high pressure magnetic flow meter.
A variety of liners and electrodes are available to satisfy different flow characteristic.
No obstacle in the pipe, no pressure-loss and lower requirement for straight pipeline.
Measurement is not affected by the variation of flow density, viscosity, temperature, pressure.
High accuracy measurement is guaranteed according to the linear measurement principle.?
4-20mA, pulse, RS485 or RS232 interface supports digital communication.?
Technical specification
? Item |
?The?Specifications of high pressure electromagnetic flow?meter |
Installation Type |
Split?/?remote
Integrated?/?compact
|
Measuring fluid |
conductive fluid?and slurry |
Caliber????????????? |
DN8--DN3000 |
?End connection |
Flange, threaded, clamping, insertion type, etc. |
Electrode materials? |
SUS316L, Titanium, Tantalum, Hastelloy B, Hastelloy C,?Platinum-iridium,?Stainless steel covered?with tungsten carbide |
Flange standard |
GB, DIN, JIS, EN, SABS, etc. |
Lining Material |
PTFE, PFA (resistance to negative pressure), chloroprene rubber, polyurethane, hard rubber (optional conductive ground rubber), F46 |
Electrode Type |
Standard type 316L, scraper-type (DN ≥?50) |
Dielectric conductivity |
> 5μs/cm (water> 20μs/cm) |
Accuracy grade |
±0.5%?RS. |
Flow Range |
0-10m/s |
|
Maximum temperature
of medium
|
For rubber liner?≤?80?°C,??for PTFE liner?≤?120°C |
Ambient temperature |
-20?-?+60 |
Working pressure |
0.6Mpa-4.0Mpa, the special?high pressure?is available |
Protection Level |
IP65, IP67, IP68 (optional) |
Power |
220VAC(85~250 voltage)????24VDC(11~40 voltage) |
Display |
Forward and backward instantaneous flow?rate, total flow, velocity, flow?rate percentage with back light |
Output |
4-20mA current output ,0-1kHz frequency output, pulse output per unit volume |
Communication |
RS485 @Modbus, RS232@Modbus, HART, Profibus, GPRS, etc. |
How to select right liner material
Lining Material |
Main Performance |
Applicable Range |
|
Polytetrafl
uoroethylene (PTFE / Teflon)
|
1. It is the plastic with most stable chemical properties, and is resistant to boiled hydrochloric acid, sulphuric acid, nitric acid and aqua regia, and also strong alkali and varied organic solvents.
2. Wear resistant performance is lower than polyurethane rubber.
3. Negative pressure resistance is lower than poly neoprene.
|
1.Strong corrosive medium such as concentrated acid and alkali.
2.Sanitary medium. |
Fluorinated Ethylene Propylene (F46) |
Chemical performance is similar as PTFE, the negative pressure resistance is better than PTFE, the price is relatively high. |
Additional Mesh PFA |
Chemical performance is similar as PTFE, good negative pressure resistance, the price is high. |
Water, sewage, weak wearable mud ore pulp. |
Poly Neoprene |
1. With very good elasticity, high breaking tenacity, good wear resistant performance.
2. Resistant to common low concentration acid and alkali and salt, not resistant to oxidizing medium. |
Polyurethane Rubber |
1. Extremely strong wear resistant performance.
2. The corrosion resistant performance is relatively low. |
Neutral and strong wearable ore pulp, coal pulp and mud.? |
