ZBLB Smart Target Flow Meter

Summary

ZBLB Smart Target Flow Meter adoptsstress measuring method by applying the lever principle to realize flow measurement. Acquire the same signal as the signal ofchanging flowthrough high precision double holes cantilever stress sensor. Via being processed by A/D converter, MPU and D/A converter, etc, then the output signalwhich is transferred into 4-20mA open current analog signal and digital signal that is in conformity with HART protocol and is superimposed on the analog signal. It is provided with the functions of high accuracy for linearity treatment, strong interference-resistance, remoteconfiguration,monitoring, maintenance and adjustment, etc. It can work together with equipment being conformity with HART protocol in the field bus so as to realize the digital communication, process checking and automatic controlling. It can also be used compatibly with analog meter. The static pressure adjustment device of ZBLB haswon the national patents.

Patent No.: ZL99 321507.6, ZL

Operation principleA target plate is mounted at end of the lever 3. Fluid exerts a force F1 on target plate that is transferred to act on lever 3. Under the action of force F1, shaft-seal 2 diaphragm as fulcrum (It hastwo functions: 1.Acting as the fulcrum of the whole lever. 2. Performing as a seal plate), Lever 3 transfers the forceto Lever1 and then generates force F2. Lever 1 connects with a weighing sensor at the other end. This sensor will transfer the force F2 exerted by lever1into a millivolt electric signal. The electric signal is transmitted through A/D converter, MPU, D/A converter and signal output circuit to finish converting process. (See figure 1, figure 2)

Main technical parameters

Power supply: DC24V

Output signal: 4~20mA

Flange standard: HG/T20592-2009

HG/T20617-2009(or on request)

Power supply inlet: M20×1.5(female thread) or on request

Load resistance: 230~1100Ω

Nominal pressure: ≤6.3MPa

Accuracy class: 0.5 class, 1.0 class

Damping time selection: 0～32s

Explosion-proof: intrinsically safe ExiaⅡCT1-T44

Protection class: IP67

Max. integrated flux: 99.99MT

Operating temperature: see the meter head, ambient temperature and process temperature table

(Figure 5)

Flow range: 4– 400 m3/h

Range ratio: 3:1

ZBLB Smart Target Flow Meter

Figure 2. Electric principle diagram

Figure 3: electric system schematic diagram Figure 4: load character diagram

Figure 5: meter head, ambient temperature and process temperature table

ZBLB Smart Target Flow Meter

Model selection table

Model / Code / Code meaning
ZBLB- / Smart target flow meter
1 / PN: 2.5MPa(class 150)
2 / PN: 4.0MPa
3 / PN: 6.3MPa(class 300)
015 / DN15 (only for ring type measuring chamber)
025 / DN25
040 / DN40
050 / DN50
080 / DN80
100 / DN100
150 / DN150
200 / DN200
A / Ringtype measuring chamber
B / Straight pipe section measuring chamber
/
i / Intrinsically safe
T / Measuring chamber material: Carbon steel
H / Measuring chamber material: 304, 316L or on request
D / Without radiating fin, see figure 5(T≤100℃)
G / With radiating fin, see figure 5（100℃<T≤400℃）
X / With auxiliary local device ( please note radiation or insulation) see figure 5
□ / Medium density:kg/m3
Q□ / Max. volume flow m3/h(scale flow)
G□ / Max. mass flow t/h(scale flow)
ZBLB- / □ / □ / □ / / / □ / □ / □ / □ / □

Example:

ZBLB-2050A/ iTD780G20 is smart target flow meter, nominal pressure is 4.0MPa, nominal diameter is 50mm, ringtype measuring chamber, intrinsically safe, measuring chamber material is carbon steel, measured medium temperature≤100℃,medium density is 780 kg/m3, max. mass flow is 20t/h.

ZBLB Smart Target Flow Meter

Flow table (calibrated fluid’s density is 839kg/m3)

Nominal diameter
DN(mm) / Target diameter
(mm) / β
β=d/D / Flowrate coefficient
K / C
14.129×D（1/β－β） / Flowrate range
m3/h
15 / 12 / 0.80 / 0.699 / 95.370 / 1.5,4.5
25 / 20 / 0.80 / 0.725 / 158.951 / 4,5,6.3
18 / 0.72 / 0.690 / 236.268 / 8
40 / 28 / 0.70 / 0.701 / 411.759 / 8
32 / 0.80 / 0.741 / 254.322 / 6.3
50 / 40 / 0.80 / 0.725 / 317.902 / 8,10,12.5
35 / 0.70 / 0.675 / 514.699 / 16, 20
30 / 0.60 / 0.650 / 753.546 / 25
80 / 56 / 0.70 / 0.680 / 823.518 / 25,32
48 / 0.60 / 0.660 / 1205.674 / 40,50
40 / 0.50 / 0.660 / 1695.480 / 63
100 / 70 / 0.70 / 0.660 / 1029.398 / 40
60 / 0.60 / 0.660 / 1507.093 / 50,63
50 / 0.50 / 0.650 / 2119.350 / 80
40 / 0.40 / 0.650 / 2967.090 / 100
150 / 90 / 0.60 / 0.660 / 2260.640 / 80
75 / 0.50 / 0.660 / 3179.025 / 100,125
60 / 0.40 / 0.650 / 4450.635 / 160
200 / 70 / 0.35 / 0.660 / 7084.684 / 160,200,250
50 / 0.25 / 0.660 / 10596.750 / 300,400

Outline and installation dimension

ZBLB-□□A/□□D□□(ring-type measuring chamber)

Nominal diameter(mm) / L / M /
Φ15 / 355 / 60
Φ25 / 365 / 60
Φ40 / 375 / 70
Φ50 / 400 / 70
Φ80 / 395 / 70
Φ100 / 415 / 90
Φ150 / 460 / 110
Φ200 / 505 / 120

ZBLB Smart Target Flow Meter

ZBLB-□□B/□□D□□(straight pipe section measuring chamber)

Nominal diameter(mm) / L / M /
Φ25 / 365 / 250
Φ40 / 375 / 280
Φ50 / 400 / 300
Φ80 / 395 / 350
Φ100 / 415 / 400
Φ150 / 460 / 500
Φ200 / 505 / 600

ZBLB-□□B/□□D□□(straight pipe section measuring chamber)

Nominal diameter(mm) / L / M /
Φ15 / 512 / 60
Φ25 / 527 / 60
Φ40 / 542 / 70
Φ50 / 557 / 70
Φ80 / 572 / 70
Φ100 / 592 / 90
Φ150 / 637 / 110
Φ200 / 667 / 120

ZBLB-□□A/□□X□□(ring-type measuring chamber)

Nominal diameter(mm) / L / M / M1 /
Φ25 / 527 / 250 / 125
Φ40 / 542 / 280 / 140
Φ50 / 557 / 300 / 150
Φ80 / 572 / 350 / 175
Φ100 / 592 / 400 / 200
Φ150 / 637 / 500 / 250
Φ200 / 667 / 600 / 300

Note: Flanges should be furnished by user according to the pressure rate and flange standards.

※Ring-type measuring chamber should use female flange.※Straight pipe section measuring chamber should match with male flange.※Front and backof the meter should configure straight pipe section of a certain length, upper straight pipe section is no less than 10 timesof nominal diameter, lower is no less than nominal 5 times of diameter. The meter is not suitable for installing in thestrenuous vibration environment. Both sides of meter should install by-pass line.

Guard grating recommendation table

Dandong Top Electronics Instrument Co.,Ltd / TP5041-Ex; TP5045-Ex
Shanghai Automation Instrument Institute / GS8041-Ex; GS8037-Ex
TURCK company / MK33-11Ex-Hli/24VDC
British MTL company / MTL3046B; MTL5042
Germany P+F company / KFD2-STC3-Ex1

Order Notice

Please fill in the blank when ordering.

Model / Tag No. / Quantity
Operation
Condition / Medium / Max.Flow / (kg/h)
Oper. Temper. / ℃℃ / (m3/h or N m3/h)
Oper. Press. / (MPa) / Norm.Flow / (kg/h)
Medium density / (kg/m³or Kg/Nm³) / (m3/h or N m3/h)
Kinematic Vis. / (mm2/s) / Min. Flow / (kg/h)
Dynamic Vis. / (mPa.s or mm2/s) / (m3/h or N m3/h)
Flange Stand. / Pipe state / □horizontal pipe
□vertical pipe
Remark:

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