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Type： CX-DWM digital water meter
Illustrate： The digit water meter is used for measuring the total volume of the water flow though pipe.
CX-DWM digital water meter
Summary
The digit water meter is suitable for single-direction water flow, can not used in corrosive liquid. The property is stable and reliable, high accuracy, long working life.
Characteristic
(1) Digital display, easy to read, display total flow and current flow, measure the total flow in a certain time.
(2) display high resolution total flow in test mode, the minimum resolution of small size is 0.00001m3.
(3) with Modbus and RS485 communication module, can achieve long-distance meter reading. It is low-consumption, built-in Li battery, and can match a remote display.
(4) with reset function, when enter into test mode, the total flow can reset, it is more suitable for industry dosing.
Signaling principle
The impeller rotation causes the flip of a magnetic field, magnetic field turn every week, wiggins send out a set of positive and negative pulse. Pulse frequency related to impeller rotational speed (magnetic filp frequency), each positive and negative pulse width approximately 20-30uS, pulse height not less than 1. 5 V.
Operating voltage: 3 ~ 6 V
Working current: static one is less than 1ua; maximum speed is less than 3ua;
Output: rectangular wave. (high level is equal to the supply voltage);
Wiring: nether positive nor negative electrode
Environment Condition:
a. environment class:A
b. water temperature:4-95C
Working pressure: P</=1.0Mpa
Property Parameter
1 single flow tube flow meter property parameter
| Model | Nominal Size | Overload Flow (m3/h) | Normal Flow (m3/h) | Dividing Line (L/h) | Min. Flow (L/h) |
Coefficient (n/l) |
L (mm) |
| CXCL-15 | 15 | 3 | 1.5 | 120 | 30 | 30.4 | 110 |
| CXCL-20 | 20 | 5 | 2.5 | 200 | 50 | 18 | 130 |
| CXCL-25 | 25(Qn2.5) | 5 | 2.5 | 200 | 50 | 18 | 130 |
2 multi flow tube flow meter property parameter
| Model | Nominal Size | Overload Flow (m3/h) | Normal Flow (m3/h) | Dividing Line (L/h) | Min. Flow (L/h) |
Coefficient (n/l) |
L (mm) |
| CX-DWM-15 |
15 |
3 | 1.5 | 120 | 30 | 29 | 130 |
| CX-DWM-20 | 20 | 5 | 2.5 | 200 | 50 | 21 | 130 |
| CX-DWM-25 | 25 | 7 | 3.5 | 280 | 70 | 16.3 | 130 |
| CX-DWM-32 | 32(Qn3.5) | 7 | 3.5 | 280 | 70 | 16.3 | 130 |
| CX-DWM-40 | 40(iron hosing) | 20 | 10 | 800 | 200 | 3.8 | 200 |
| CX-DWM-50 | 50(flange) | 30 | 15 | 3000 | 450 | 4 | 280 |
3 dismountable level with magnetic flow meter property parameter
| Model |
Nominal Size (mm) |
Overload Flow (m3/h) |
Normal Flow (m3/h) |
Dividing Line (m3/h) |
Min. Flow (m3/h) |
L (mm) |
B (mm) |
H (mm) |
flange OD (D1) |
bolt center diameter(D2) |
| CXLGC(R)-50E/W | 50 | 30 | 15 | 3 | 0.45 | 200 | 165 | 247 | 165 | 125 |
| CXLGC(R)-65E/W | 65 | 50 | 25 | 5 | 0.75 | 200 | 185 | 257 | 185 | 145 |
| CXLGC(R)-80E/W | 80 | 80 | 40 | 8 | 1.20 | 225 | 200 | 265 | 200 | 160 |
| CXLGC(R)-100E/W | 100 | 120 | 60 | 12 | 1.80 | 250 | 220 | 275 | 220 | 180 |
| CXLGC(R)-125E/W | 125 | 200 | 100 | 20 | 3.00 | 250 | 250 | 285 | 250 | 210 |
| CXLGC(R)-150E/W | 150 | 300 | 150 | 30 | 4.50 | 300 | 285 | 319 | 285 | 240 |
| CXLGC(R)-200E/W | 200 | 500 | 250 | 50 | 7.50 | 350 | 340 | 346 | 340 | 295 |
| CXLGC(R)-250E/W | 250 | 800 | 400 | 80 | 12 | 450 | 395 | 432 | 395 | 350 |
| CXLGC(R)-300E/W | 300 | 1200 | 600 | 120 | 18 | 500 | 445 | 450 | 400 | 445 |
4 measuring error
a. the lower area from include min flow (Qmin) to do not include dividing flow(Qt) is +/-5%
b. the upper area from include dividing flow (Qt) to include overload flow(Qs) is +/-3%
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