The Vortex flow meter
Site:www.gninstrument.comwww.microflowmeter.com
Contact:Porter
Email:info@microflowmeter.com
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| Vortex flow meter |
Designed in three-wire or two-wire system, E Series Display Circuit is a newly emerged compact circuit of Vortex Flow Meter. Its amplified circuit belongs to the Analog type. Within the conventional flow range, the flow rate of gas, liquid and steam can be measured in high accuracy through using this E Series Display Circuit. In addition, switches can be set up to adapt to a variety of medium-calibers and various kinds of measurements. Remote data processing and remote signal circuit are divided into three-wire system and two- wire system. The three-wire system can be connected with RS485 communication equipment; it is also battery-powered. Using 4-20mA current output, the two-wire system can provide isolated original pulse output.
1. Main Technical Parameters
1.1 Applicable Caliber: DN15-DN300, other caliber agreement supply.
Applicable medium: gas, steam and liquid.
1.2 Environmental conditions:
Ambient temperature: (-30 ~ +70) ℃ / (-20 ~ +60 ℃ liquid-crystal display).
Relative humidity: 5% ~ 90% Atmospheric Pressure: (86 ~ 106) kPa.
Medium temperature: (-50 ~ +250) ℃, (-50 ~ +350) ℃.
1.3 Power Supply
a. Three-wire System
(1) When using external power supply: 12 ~ 24VDC/30mA (-20% ~ +15%), no output can be as low as 9V
(2) When battery-powered (optional): Lithium battery 3.6V (2-13Ah) / 0.3mA.
b) Two-wire system 12~24VDC/4-20mA(-20%~+15%)
1.4 Output Signal
a) Three-wire system
(1) Pulse output: High level ≥ 8V (power supply voltage -1V).
Low Level <0.5V.
（2） With 1K5 pull-up resistor open collector output
（3） RS485 communication: The meter can be configured to RS485 communication interface. Communication range ≤ 1200mm.
b) two-wire system
(1) Second-line 4 ~ 20mA linear correction electronic current output (When the voltage is 24V, the circuit load ≤ 600Ω).
(2) No amendment to the original pulse optical isolator output: high ≥ 5V (power supply voltage of-1V).
(2) No amendment to the original pulse optical isolator output: high ≥ 5V (power supply voltage of-1V).
(3) Low <0.5V; with 1K5 pull-up resistor open collector output. Extra 12V electronic power need to be supplied.
Parameters
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L
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H
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Flange
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Bolts
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||||
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OD of flange
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Hole distance of bolts
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hole diameter of bolts
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q'ty
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size
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|||
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15
|
180
|
415
|
95
|
65
|
14
|
8
|
M12x60
|
|
20
|
180
|
420
|
105
|
75
|
14
|
8
|
M12x60
|
|
25
|
180
|
425
|
115
|
85
|
18
|
8
|
M16x60
|
|
32
|
180
|
435
|
140
|
100
|
18
|
8
|
M16x70
|
|
40
|
180
|
435
|
150
|
110
|
18
|
8
|
M16x70
|
|
50
|
180
|
440
|
165
|
125
|
18
|
8
|
M16x70
|
|
65
|
180
|
460
|
185
|
145
|
18
|
8
|
M16x70
|
|
80
|
200
|
490
|
200
|
160
|
18
|
16
|
M16x70
|
|
100
|
220
|
510
|
220
|
180
|
18
|
16
|
M16x70
|
|
125
|
240
|
535
|
250
|
210
|
18
|
16
|
M16x70
|
|
150
|
270
|
570
|
285
|
240
|
22
|
16
|
M16x70
|
|
200
|
300
|
625
|
340
|
295
|
22
|
24
|
M16x70
|
|
250
|
320
|
685
|
405
|
355
|
26
|
24
|
M16x70
|
|
300
|
350
|
710
|
460
|
410
|
26
|
24
|
M16x70
|
|
350
|
375
|
790
|
520
|
470
|
26
|
32
|
M16x70
|
|
400
|
400
|
845
|
580
|
525
|
30
|
32
|
M16x70
|
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