Air Treatment & Conditioning

Remote Type Liquid Electromagnetic Flow Meter with RS485 / HART
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Main technical parameters


■ Ambient temperature-25℃---65℃
■ Ambient humidity≦９５％
■ Medium temperature:-25℃--80℃(Note:The temperature is
different for each lining material, please advise when place
order.)
■ Casing protection level IP65,IP67,IP68
■ Flow range 0.5 --- 15m/s
■ Measuring diameter:DN10---DN2400
■ Pressure Grade:PN1.0；PN1.6；PN2.5；PN4.0 optional
■ Accuracy Grade:０.５ Grade,０.２ Grade
■ Measuring Parameters:instant flow ,instant flow rate
■ Record parameters : Total flow accumulated, 32 group event
record
■ Detection and alarm parameters:Pipe empty alarm, Excitation
current detection alarm
Battery capacity detection alarm
■ Flow curves: Automatically show flow percentage and curves.
■ Scaled output signal: Unit volume flow pulse

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MTF series magnetic flow meter selection table

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Type of instrument | MTF | ? |
Installation form | -S | Flange-type sensor |
-D | Clamping-type sensor |
-C | Insertion-type sensor |
Pipe diameter | 15 | 15mm |
20 | 20mm |
25 | 25mm |
.... | .... |
2400 | 2400mm |
Electrode form | -F | Standard and fixed type |
Electrode material | A | Stainless steel 316L |
B | Hb |
C | Ta |
D | Ti |
E | Hc |
F | Tungsten Carbide |
G | other |
Lining material | R | Rubber |
P | PTFE |
O | Please mark out others |
Measuring pipe material | B | 304 Stainless steel (Standard) |
C | 316 Stainless steel |
Flange Material | A | 304 stainless steel |
B | 316 Stainless steel |
C | 20# Carbon steel |
Cover Material | D | Cover 304 stainless steel |
E | Cover 316 Stainless steel |
F | Cover Carbon steel paint (Epoxy metallic paint) |
Installation material flange | 0 | Without matching flange |
1 | With matching flange |
Ground ring | 0 | Without ground ring |
1 | With ground ring |
Rated voltage | -10 | 1.0MPa |
-16 | 1.6MPa |
-40 | 4.0MPa |
Working temperature | E | ≦60℃ |
H | ≦180℃(devided type) |
Form of converter | -I | Integrated type |
-D | Divided type |
Output signal and communication | P | Pulse |
A | 4-20mA |
G | 485 communication |
H | Hart communication |
Q | Others |
Power supply | 0 | 220V AC |
1 | 24V DC |
2 | Battery-powered |
Protection level | 0 | IP65 |
1 | IP67(devided type) |
2 | IP68(devided type) |
Other features | R | Heat |
P | With PT1000 |
B | Without PT1000 |
Explosive proof level | 0 | Non-explosive proof |
EX | EX |
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Sensor size selection

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The selection of the sensor diameter is not the same
as the diameter of pipe.This option applies to the
following:
A.for Low flow velocity in the pipe and the stable flow rate, to
meet the requirements of the instrumentation on the flow rate
range,we should increase the flow rate of partial area and
select the sensor diameter smaller than the pipe diameter ,and
install another different - diameter pipe before the sensor.
B.In terms of the price, for the magnetic flow meter with large
diameter, the larger diameter you want, you higher price you
will pay; for the low flow rate in the pipe and stable
parameter,the selection of small diameter would be better. It
will not only make the meter work in good condition but also
reduce the cost.

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Warning of installing the different-diameter pipe

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To avoid affecting too much the distribution of the velocity field and the measuring

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accuracy, The center of the cone angle of different diameter pipe should not be

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greater than 15,thus we could regard the different-diameter pipe as part of the

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straight pipe.

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Selection of Electrode materials:

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316L | Good resistance to the corrosion of nitric acid, <5% Sulfuric acid under room temperature, Acetic acid, Alkaline fluid, Sulfite under certain pressure, seawater and Acetic acid, etc. It can be widely used in the petrochemical, urea, vinylon. |
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HC | Resist the corrosion of oxidizing acids like metric acid, mixed acid, the mixture of chromium acid and sulfuric acid, and salts of oxidative, like Fe+++,Q+++,and some other oxidants, like hypochlorite salt solution higher than normal temperature and seawater. |
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Ti | Resist the corrosion of seawater, various chlorides,hypochlorite, oxidizing acid(like su-lfuric acid, hydrochloric acid). But if acid includes oxidants(like nitric acid,Fe+++,Q+++),the corrosion resistance will decrease. |
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Ta | Good corrosion resistance similar to glass. Resist the corrosion of chemical medium(including hydrochloric acid and fuming sulfuric acid),but can not be used for Sodium hydroxide fluid. |
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