advertisement
Design, Assembly and Service Manual
ELIS PLZEŇ a. s.
Electromagnetic flowmeter FLONET FN50xx.1
Electromagnetic Flowmeter
FLONET FN50xx.1
Page 1 of 32
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
ELIS PLZEŇ a. s.
Design, Assembly and Service Manual
Electromagnetic flowmeter FLONET FN50xx.1
Page 2 of 32
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Electromagnetic flowmeter FLONET FN50xx.1
Page 3 of 32
ELIS PLZEŇ a. s.
Content
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Page 4 of 32
Electromagnetic flowmeter FLONET FN50xx.1
ELIS PLZEŇ a. s.
1. APPLICATION
The FLONET FN50xx.1 electromagnetic flowmeter has been designed to measure volume flow rates of electrically conductive liquids in closed piping systems. It enables flow measurement with high accuracy in a wide range of flow rates (0.05 to 10 m/s) unlike the previous type FLONET FN20xx.1 (range 1:100) in extended range 1:200.
It is supplied in a compact design (dismountable piece of flow sensor and electronic unit) as a “blind”
(without a display) low-cost flowmeter for heat and cold measurement systems.
There is also a remote design of this flowmeter with a junction box on the top of chimney connected to a cable with an electronic unit fitted with L-shaped steel angle bracket at the other end of the cable.
Power supply range is 230 VAC (or110 VAC). The flowmeter has only one galvanic isolated passive pulse output OUT1.
The basic parameters can be set during activation process using special USB channel and sw FLOSET (it isn’t standard in a delivery) .
2. MEASUREMENT PRINCIPLE
The function of an electromagnetic flowmeter is based on Faraday’s induction law. The meter sensor consists of a non-magnetic and non-conductive tube with two embedded measuring electrodes to pick up the induced voltage. To create an alternating magnetic field, two coils are fitted onto the tube in parallel with the plane defined by the active parts of the measuring electrodes. Now if a conductive liquid flows across magnetic field B , voltage U will appear on the measuring electrodes proportional to the flow velocity v and the conductor length l .
U = B x l x v
U induced voltage
B
l
v magnetic flux density distance between the measuring electrodes liquid flow velocity
As the magnetic flux density and distance between the electrodes are constant, the induced voltage is proportional to the liquid flow velocity in the tube. The value of the volume flow rate can then be readily determined as a product of the flow velocity and square section of the tube, Q = v x S.
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Page 5 of 32
Electromagnetic flowmeter FLONET FN50xx.1
ELIS PLZEŇ a. s.
3. TECHNICAL DESCRIPTION
3.1. General
The electromagnetic flowmeter consists of a sensor through which the measured liquid flows and an electronic unit where the low-level signal from the sensor is modified to a standardized form suitable for further processing in various industrial electronic devices. The output signal is proportional to the volume flow rate of the measured liquid. The only factor limiting the application of electromagnetic flowmeters is the requirement that the measured liquid shall be conductive and non-magnetic. The electromagnetic flowmeter can be designed as a compact or remote device. The meter sensor is with different type of lining (hard rubber, soft rubber and special hard rubber for drinking water, PTFE or E-CTFE), with electrodes from different material and in flanged or wafer (flangeless) version.
Cold meters always must be in a remote design !
The reason is a risk of moisture condensation inside of the cooled electronic unit in a compact design that can be caused by drawing in a surrounding air.
Flow meters for heat meters in a compact design may have a sensor with a prolonged chimney (made of stainless material). Such a sensor can measure media with temperatures up to 150ºC provided that the sensor and pipeline are thermally insulated and the ambient temperature doesn’t exceed 60ºC.
When choosing a sensor for cold or heat measurement, physical parameters of lining must be taken into account – see 4.1.4 Selection of flow sensor lining
3.2. Meter design
Compact design solution for a flangeless sensor and associated electronic unit
Compact design solution for a flanged sensor with associated electronic unit
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Electromagnetic flowmeter FLONET FN50xx.1
ELIS PLZEŇ a. s.
Example of flowmeter assembly in the remote design version
Dimensions of the box to accommodate the flowmeter in the compact design version
Page 6 of 32
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Electromagnetic flowmeter FLONET FN50xx.1
Page 7 of 32
ELIS PLZEŇ a. s.
3.3. Protection of meters against unprofessional handling
The meter shall be provided with an assembly seals after installation, which can do duly authorized organization, which is trained from the producer.
Placement of official and assembly seals on meters.
ASSEMBLY
SEAL
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Page 8 of 32
Electromagnetic flowmeter FLONET FN50xx.1
ELIS PLZEŇ a. s.
4. TECHNICAL PARAMETERS
4.1. Flow sensor
The sensor environment must be free of any strong magnetic fields.
4.1.1. Selection of correct sensor size
The following table shows minimum and maximum flow rates for various sensor sizes and flow velocities ranging from 0,05 to10 m/s. The best operational properties will be achieved at the flow-velocity range of 0.5 to 5 m/s. For lower flow velocities, the measurement accuracy is worse while at higher flow velocities the turbulences at contact edges may cause undesirable interference.
Minimum and maximum flow rates for various sensor sizes
Q min
corresponds to flow velocity 0.05 m/s
Q max
corresponds to flow velocity 10.0 m/s m3 / h
DN
15
20
25
32
40 l / s
Q min
0.0072
0,013
0,025
0,04165
Q max
1,8
3,3
5
8,33
Q min
0,026
0,048
0,09
0,15
Q max
6,5
12
18
30
50
65
80
100
125
150
200
250
0,0625
0,1
0,16665
0,25
12,5
20
33,33
50
0,38885
0,5972
77,77
119,44
0,90275 180,55
1,597 319,4
0,225
0,36
0,6
0,9
1,4
2,15
3,25
5,75
45
72
120
180
280
430
650
1150
300
350
400
500
600
700
800
2,5
3,5
4,86
6,25
10
11,1
15,5
20,0
500
700
972
1250
2000
2778
3889
5000
36
40
56
72
9
12,6
17,5
22,5
1800
2520
3500
4500
7200
10000
14000
18000
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Page 9 of 32
Electromagnetic flowmeter FLONET FN50xx.1
ELIS PLZEŇ a. s.
The basic parameters of flow meters for heat/cold meters are designed in compliance of standard EN1434
(OIML R 75).
Below is issued ratio of following flow rates: q s q p
= 2
Size DN
Overload flow q s
[m3/h]
Permanent flow q p
[m3/h]
Min. flow q i
[m3/h]
Ratio qp/pi
15 6,5 3 0,0163
20 12 6 0,0300
25 18 9 0,0450
32 30 15 0,0750
40 45 23 0,1125
50 72 36 0,1800
65 150 75 0,3750
80 180 90 0,4500
100 280 140 0,70
125 430 215 1,08
150 650 325
200 1 150 575
350 3 500 1 750
1,6
2,9
250 1 800 900 4,5
300 2 520 1 260 6,30
9
400 4 500 2 250 11
500 7 200 3 600 18,0
600 10 000
700 14 000
5 000
7 000
25
35
200
800 18 000 9 000 45
Data in the table are valid for accuracy higher than ±2% in range q min x% ≤ q i
≤ q s
Legend: q s
= overload (maximum) flow rate of a measured liquid q p
= permanent (nominal) flow rate of a measured liquid q i
= min flow rate for an accuracy of measurement
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Page 10 of 32
Electromagnetic flowmeter FLONET FN50xx.1
ELIS PLZEŇ a. s.
The basic parameters of flow meters are designed in compliance of standard ISO 4064 (OIML R 49).
Below is issued ratio of following flow rates:
Q
4
Q
3
= 1.25
Q
2
Q
1
= 1.6
An accuracy complies of standard EN ISO 4064-1 (OIML R 49)
6
4
2
0
-2
-4
-6
Q1 Q2 Q3 Q4
Values in the table are acc to standard ISO 4064-1 (OIML R 49).
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Page 11 of 32
Electromagnetic flowmeter FLONET FN50xx.1
ELIS PLZEŇ a. s.
Values of flow Q
1
, Q
2
, Q
3
a Q
4
, which apply to individual design variants and to dimensions, are written in the table 2 below:
Table 2
Size DN
Over load flow
Q4 [m3/h]
Permanent flow
Q3 [m3/h]
Transition flow
Q2 [m3/h]
Min. flow
Q1 [m3/h]
Insensitivity
[m3/h]
Q1 35%
Insensitivity
[m3/h]
Q1 50%
Ratio
Q3/Q1
72
120
180
280
430
650
1 150,0
1 800,0
6,5
12
18
30
45
2 520,0
3 500,0
4 500,0
7 200,0
10 000,0
14 000,0
125
150
200
250
50
65
80
100
15
20
25
32
40
300
350
400
500
600
700
0,0091
0,0168
0,0252
0,042
0,063
0,1008
0,168
0,252
0,392
0,602
0,91
1,61
2,52
3,528
4,9
6,3
10,08
14
19,6
0,288
0,48
0,72
1,12
1,72
2,6
4,6
7,2
0,026
0,048
0,072
0,12
0,18
10,08
14
18
28,8
40
56
0,0416
0,0768
0,1152
0,192
0,288
0,4608
0,768
1,152
1,79
2,75
4,16
7,36
11,52
16,13
22,4
28,8
46,08
64
89,6
57,6
96
144
224
344
520
920
1 440,0
5,2
9,6
14,4
24
36
2 016,0
2 800,0
3 600,0
5 760,0
8 000,0
11 200,0
200
800 18 000,0 14 400,0 115,2 72 25,2 36
Q
1
Q
3
Q
2 transition flow
Legend:
Q
4 overload (maximum) low (maximum) permanent (nominal) flow min. flow for specific accuracy
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722
0,144
0,24
0,36
0,56
0,86
1,3
2,3
3,6
0,013
0,024
0,036
0,06
0,09
5,04
7
9
14,4
20
28
Es90716K
Design, Assembly and Service Manual
Page 12 of 32
Electromagnetic flowmeter FLONET FN50xx.1
ELIS PLZEŇ a. s.
4.1.2. Operational pressure of measured liquid
The standard flow-sensor versions have the following pressure ratings:
Sensor size Pressure rating
DN 15 to DN 50
DN 65 to DN 200
DN 250 to DN 800
PN 40 (4,0 MPa)
PN 16 (1,6 MPa)
PN 10 (1,0 MPa)
Relationship between operational pressure and temperature of the measured liquid.
4.1.3.
Material of electrodes
Measurement electrodes are made of stainless steel 1.4571 (316Ti). Some special applications require use of higher-quality and more resilient materials. We provide electrodes made of Hastelloy C276, Tantalum,
Titanium and Platinum-Rhodium (PtRh10).
4.1.4. Selection of sensor lining
The sensors are produced with linings of different materials. Selection of lining material depends on properties of measured liquid.
Soft rubber, low aggressive liquids, -35 o
C to 80ºC, higher content of abrasive particles
Hard rubber, low aggressive liquids, +5 to 80ºC
Special rubber for potable water, +5 to 8 0ºC
Teflon PTFE, aggressive liquids with operating temperature –20 to +110ºC, on request –35 to +150ºC
E-CTFE, operating temperature -20 to +11 0ºC, for dimensions over DN300, on request –35 to +130ºC
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Electromagnetic flowmeter FLONET FN50xx.1
ELIS PLZEŇ a. s.
4.1.5. Dimensions of flangeless sensor ISX.Mxx (for heat meters)
Page 13 of 32
DN
L
Flangeless sensor dimensions for various rated diameters (DN)
DN D A* L Hmotnost
[ kg ]
PN40
25
32
40
50
72
82
92
107
165
175
186
199
104
104
104
104
2
2
2
3
PN16
65
80
100
127
142
162
219
234
254
104
104
104
3
4
4
125
150
192
218
284
310
134
134
6
8
200 274 366 219 10
* Height is considered without the electronic unit, without the junction box respectively. Weight of sensor has an indicative character.
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Electromagnetic flowmeter FLONET FN50xx.1
ELIS PLZEŇ a. s.
4.1.6. Dimensions of flanged sensor IS0.Mxx (for heat meters)
Page 14 of 32
DN l
L D
Dimensions of flanged sensor according to DN
Flanges according to the norm EN 1092-1
DN D d A* L l
PN40
PN16
PN10
PN6
15
20
25
32
40
50
65
80
100
125
150
200
250
300
350
400
500
600
700
800
95
105
115
140
150
165
185
200
220
250
285
340
395
445
505
565
670
780
895
975
62
62
72
82
92
107
127
142
162
192
218
274
370
420
480
530
640
760
880
960 x x
187
206
216
230
251
267
287
317
347
405
487
542
591
649
759
877
997
1107
200
250
250
300
350
450
200
200
200
200
200
200
200
500
550
600
600
600
700
800
66
66
96
96
96
96
96
96
96
126
126
211
211
320
320
320
320
320
420
420
* Height is considered without the electronic unit, without the junction box respectively. Weight of flow sensor has an indicative character.
Weight
[ kg ]
41
54
77
92
116
167
288
356
427
6
9
14
16
19
25
2
2,5
3
4
4
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
ELIS PLZEŇ a. s.
Electromagnetic flowmeter FLONET FN50xx.1
4.1.7. Dimensions of flangeless sensor ISX.1xx
Page 15 of 32
L
Dimensions of flangeless sensor according to DN
DN D A* L Hmotnost
[ kg ]
PN40
25
32
40
50
65
80
72
82
92
107
127
142
158
168
179
192
212
227
104
104
104
104
104
104
3
3
4
2
2
2
PN16 100
125
150
162
192
218
247
277
303
104
134
134
4
6
8
200 274 359 219 10
* Height is considered without the electronic unit, without the junction box respectively. Weight of flow sensor has an indicative character.
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
ELIS PLZEŇ a. s.
Electromagnetic flowmeter FLONET FN50xx.1
4.1.8. Dimensions of flanged sensor ISX.1xx
Page 16 of 32 l
L
D
Dimensions of flanged flow sensor according to DN
Flanges according to the norm ČSN EN 1092-1
DN D d A* L l Weight
[ kg ]
15
20
25
95
105
115
62
62
72 x
170
180
200
200
200
66
66
96
2,5
3
PN40
PN16
32
40
50
65
80
100
125
140
150
165
185
200
220
250
82
92
107
127
142
162
192
199
209
223
244
260
280
310
200
200
200
200
200
250
250
96
96
96
96
96
96
126
3
4
4
6
9
14
PN10
150
200
250
300
350
400
500
285
340
395
445
505
565
670
218
274
370
420
480
530
640
340
398
480
535
584
642
752
300
350
450
500
550
600
600
126
211
211
320
320
320
320
16
19
25
41
54
77
92
600
700
800
780
895
975
760
880
960 x x x
600
700
800
320
420
420
116
167
288 x
427 PN6
* Height is considered without the electronic unit, without the junction box respectively. Weight of flow sensor has an indicative character.
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Connection of sensor
Earthing
Flow rate of measured liquid
Temperature of measured liquid
Minimum conductivity of measured liquid
Lining
Electrodes
Ingress protection
Storage temperature
Page 17 of 32
ELIS PLZEŇ a. s.
Dimensions of sensor
Electromagnetic flowmeter FLONET FN50xx.1
4.1.9. Technical data of sensor
Flangeless DN 25 to DN 200
Flanged DN 15 to DN 800
Operating pressure PN 40 (4,0 MPa) for DN 15 to DN 50
PN 16 (1,6 MPa) for DN 65to DN 200
PN 10 (1,0 MPa) for DN 250to DN 800
Flangeless
Flanged
Earthing electrode
0,05 m/s to 10 m/s (range 1:200)
110 o
C
Up to 150ºC on a request (based on lining type and when using sensor with prolonged chimney made of stainless material) – see article 4.1.4
20 μS/cm, based on agreement with manufacturer up to 5 μS/cm
Soft rubber
Hard rubber
Rubber for potable water
Teflon PTFE
E - CTFE
Stainless steel 1.4571 (316Ti)
Hastelloy C276
Tantalum
Titanium
Platinum-Rhodium (PtRh10)
IP 65
10ºC to +70ºC, at the max. relative humidity 70 %
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Electromagnetic flowmeter FLONET FN50xx.1
Page 18 of 32
ELIS PLZEŇ a. s.
4.2. Electronic unit box
The signal-processing electronic unit is accommodated in a cast aluminum box coated on the surface with paint of hue RAL 1017. The box is held by four (2x hexagonal head and 2x countersunk head) M5 bolts with hexagonal socket heads. Inside the box is the terminal board accessible by removing the cover fastened by
4 bolts. The side of the box is equipped by cable glands. Prior to putting the meter in service, check the correct sealing of all active glands, and tightening of the bolts holding the cover of the box.
The remote version of electronic unit is equipped with L- shaped angle bracket for wall mounting. Through the cable bushing fitted at the angle bracket, the connecting cable connects electronic unit and junction box of sensor.
4.2.1. Electronic unit specifications
Power source
Power consumption
Line fuse
Electric shock protection according to standard
ČSN 332000-4-41
Cable bushing Pg9
Box material
Weight
Ambient temperature
Storage temperature
85 to 305 VAC /47 ÷ 440 Hz
3 VA max.
T2 A
Automated disconnection from power source in TN-S network
For power supply cable with a diameter of 5 to 10 mm
Aluminum casting
0,4 kg
5 °C to 55 °C (protected from direct sun light)
10 °C to 70 °C at relative air humidity not exceeding 70%
Flow velocity range
Maximum flow error
Output 1 - passive output, insulated
Serial communication ports
0,05 to 10 m/s
Acc to standard EN1434 or ISO4064-1 class 2 (standard)
0,2 % for 10 to 100 % Q max
(on request)
0,5 % for 5 to 100 % Q max
(on request)
Binary multi-function optocoupler 5-30 V / 50 mA
Frequency or pulse or binary *)
USB not insulated, only for service
Protection class IP 65
*) A variant must be specified by an order. The calibration is done for a chosen output!
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Page 19 of 32
Electromagnetic flowmeter FLONET FN50xx.1
ELIS PLZEŇ a. s.
5. METER APPLICATION RULES
5.1. Sensor placement in piping
No chemical injection or batching unit (such as chlorine compound injector) should be located at the input side of the sensor. The insufficient homogeneity of the flowing liquid may affect the flow-rate values indicated by the meter.
The meter performance will be the best if the liquid flow in the piping is well stabilized; therefore it is necessary to observe specific rules for the sensor placement in piping. In the contact planes between the sensor and the adjoining piping sections should be no edges as these would cause flow turbulence. Make sure that straight piping sections are provided before and after the sensor; their required length is proportional to the inner diameter of the piping concerned.
As required by clause 4.2.1 of standard EN 29104, the inner diameter of the connected pipe should not differ by more than 3% from that of the sensor.
If more than one flow-disturbing element such as pipe bend or fitting are located near the sensor, the required length of straight piping section on the sensor side concerned should be multiplied by the quantity of such elements.
In the cases of bi-directional flow-rate measurement, the same conditions concerning flow stability shall be met at the input and output sides of the sensor.
Required straight piping sections Pipe narrowing
In the cases where the pipe size larger than that of the meter sensor, it is necessary to use conical reduction pieces with the angle of taper not exceeding 15° (see the picture). In the cases of bi-directional flow measurement, the minimum length of straight piping sections on both sides is 5 DN. In horizontal sensor installations, to prevent bubbling, use eccentrically-fitted reduction pieces (see standard EN ISO 6817).
Pipe narrowing sections with angles not exceeding 8° can be taken for straight sections.
In the cases where the liquid is pumped, the flow sensor shall always be placed at the output side of the pump to prevent under pressure in the piping which might damage the sensor. The required length of the straight piping section between the pump and sensor is then at least 25 DN.
Pump in the piping Closing valve in the piping
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Page 20 of 32
Electromagnetic flowmeter FLONET FN50xx.1
ELIS PLZEŇ a. s.
For the same reason, the sensor shall be always placed before the closing valve in the piping.
The sensor can be fitted in the piping in either horizontal or vertical position. However, make sure that the electrode axis is always horizontal and, if the sensor is mounted in a horizontal position, the flange section for attachment of the electronic unit box faces upwards.
ELECTRODE
AXIS
Electrode axis Sensor mounted in a vertical position
In the cases where the sensor is mounted in a vertical position, the flow direction shall always be upwards.
Risk of liquid aeration Permanent flooding of sensor
To ensure correct meter function at all times, the measured liquid shall completely fill up the sensor and no air bubbles shall be permitted to accumulate or develop in the sensor tube. Therefore the sensor shall never be placed in the upper pocket of the piping or in a vertical piping section where the flow direction is downwards.
In piping systems where complete flooding of the piping cannot always be guaranteed, consider placing the sensor in a bottom pocket where full flooding is ensured.
If the sensor is located near a free discharge point, such point shall be by at least 2 DN higher than the top part of the sensor.
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Page 21 of 32
Electromagnetic flowmeter FLONET FN50xx.1
ELIS PLZEŇ a. s.
Sensor placement near free discharge point
Make sure that the adjoining piping is clamped/supported as close to the sensor as possible, to prevent vibrations and damage to the sensor.
Undesirable sensor vibrations Sensor bypass
In applications where continuous liquid flow is essential, a bypass shall be provided to allow for sensor servicing. A sensor bypass may also be a reasonable solution in the cases where, to dismantle the flow sensor from the piping, liquid from a very long piping section would have to be discharged.
5.2. Sensor earthing
The correct meter function requires that the sensor and adjoining piping sections be connected by lowimpedance earthing conductors to the earth potential and the protection conductor of the power source.
Measured liquid is earthed using a earthing electrode embedded in the sensor. If the sensor is not equipped with a earthing electrode is in terms of measurement the required electrical wiring between the screw on the chimney and flanges or earthing rings as shown in the pictures bellow.
This connection is recommended even if the sensor with earthing electrode (indeed fulfills the contact hazard protection and stray currents).
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Page 22 of 32
Electromagnetic flowmeter FLONET FN50xx.1
ELIS PLZEŇ a. s.
6. FLOWMETER INSTALLATION AND OPERATIONAL START
The meter installation work shall be performed in strict observance of the procedures and rules described in this manual.
To prevent undesirable interference, the power cables shall be laid at least 25cm away from all signal cables. All cables shall be laid outside the thermal insulation layer on the piping (if any). Only shielded conductors shall be used and shielding shall be connected to the earth potential on the side of the plant control system.
6.1. Sensor installation
The measurement point chosen for the sensor installation should ensure that the internal part of the sensor is fully flooded with the measured liquid at all times. If the sensor is mounted in vertical position, the only permitted liquid flow direction is upwards.
No thermal insulation shall be used on the sensor body. If the flowmeter is to be installed in a pipeline with thermal insulation, the insulation shall be removed at the sensor insulation point.
The internal diameters of the piping and the sensor tube shall be identical. The input and output piping sections including seals shall be perfectly aligned, with no protruding edges. The arrow on the sensor body indicates the required fluid flow direction (positive flow direction).
Do not expose the electronic unit box to direct sunlight; in the cases of outdoor installation, use a suitable protection shield.
6.2. Electric connections of electromagnetic flowmeter
The terminals for connecting cables can be accessed upon removal of the upper lid of the electronics box.
The lid is screwed by four bolts. A schematic diagram of the connecting is shown on the bottom side of the lid.
Examples of labels showing power supply and impulse output
6.2.1. Connection to power source
Terminal
BN
BU
N neutral conductor
L phase conductor
To connect the power source, use a standard cable of three conductors of square section not exceeding 2 x
1.5mm
2 . For ambient temperatures, over 50°C, use a cable with rated operating temperature of at least
90°C. The box grommets will only accommodate cables with outer diameter between 4 and 8mm. Use of any other cable would disturb the protection of the IP 65 box.
The earthing conductor shall be longer than both the phase and neutral conductors. This is a safety requirement as in the case of loosening the cable clamping in the gland, the earthing conductor shall be the last to be disconnected from the terminal.
The power supply line shall be protected by an overcurrent circuit breaker. A seal should be applied on the breaker to prevent unauthorized handling. The electronic unit has no independent power switch. The recommended rating of the overcurrent circuit breaker is 4 to 6A.
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Electromagnetic flowmeter FLONET FN50xx.1
Page 23 of 32
ELIS PLZEŇ a. s.
6.2.2. Output signal connections
Terminal Polarity Function Comments
1
2
Optocoupler collector (+) Binary output OUT1
Optocoupler emitter (-) Pulse output
Passive output, required external power source and loading resistor
The output terminals can be connected to co-operating electronic equipment using standard shielded signal cables of external diameter 3 to 6.5mm and conductor cross-section 0.5 to 1.5mm
2
. Shielded conductors shall also be used to connect all output signals where the shielding shall be connected to the earth potential on the side of the plant control system.
Upon connecting the conductors to the terminals, tighten the bolts holding the electronic box cover and check the grommet sealing.
Example of output OUT1 interconnection
6.2.3. Connection of sensor in remote design
The sensor in remote design has a junction box mounted on the top of a chimney. The connecting cable goes from the electronic unit through the cable bushing into the junction box. The cable shall be connected with the junction box as shown in the table below. The bushing has to be well tightened.
Junction box Meaning Color of conductor
Electrode E1 Brown BN
Electrode E2 White WH
Earthing electrode
Excitation winding
Excitation winding
Earthing electrode
Blue BU (shielding of couple BN, WH)
Yellow YE
Green GN
Blue BU (shielding of couple GN, YE)
Protective conductor Yellow-green GNYE (cable shielding)
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Page 24 of 32
ELIS PLZEŇ a. s.
Electromagnetic flowmeter FLONET FN50xx.1
6.3. Operational start
The electromagnetic flowmeter must first be fitted mechanically and then the power supply and output terminals be interconnected. Then switch on the supply voltage. Within a short time, the meter will be initialized and its operational conditions stabilized. This version of the flowmeter contains neither display nor buttons.
The meter configuration is always customized. Changes in the configuration and/or setting can be performed via special serial communication line USB ( ELIS PLZEŇ a. s. delivers as a producer).
7. OPTIONAL SETTINGS
The electromagnetic flowmeter is standardly set at the factory. If the customer needs the parameters of optional settings, it must be specified in the order.
7.1. Samples
The number of samples “N”, on the basis of which the average flow rate value is determined, can be set within the range of 1 to 255. The averaging feature is useful in the cases where the flow through the meter sensor is unstable, the fluid is turbulent or where there air bubbles are trapped in the fluid flow.
Average flow rage as measured and displayed is the parameter used to calculated impulse output OUT1.
The averaging function helps suppress fast changes in the fluid flow rate.
Current flow rate
Average flow rate
Sampling
Suppression of step changes in flow rate
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Page 25 of 32
ELIS PLZEŇ a. s.
7.2. Pulse output OUT1
Electromagnetic flowmeter FLONET FN50xx.1
In any of the impulse modes, an impulse will be generated as soon as a defined (preset) fluid volume passes through the meter sensor. Pulse width is fixed at 100 ms. For the duration of the impulse output is closed.
The following table shows the optimal choice of impulse numbers depending on the dimension of the flowmeter.
Q max
Pulse number
DN l/s l/pulse
15
20
25
1,6
3
5
32
40
8,33
12,5
50 20
65 33,33
80 50
100 77,77
125 119,44
150 180,55
200 319,4
250 500
300
350
700
972
400 1250
500 2000
600 2778
700 3889
0,1
0,1
0,1
0,1
1
1
1
1
1
10
10
10
10
10
10
100
100
100
100
800 5000 100
7.3. Production data
The production label consist all the parameters that are set at the factory.
Constant K1
Pulse number
Numbers of samples
Suppressed flow
Constant of a sensor K1 – defines a basic calibration factor of a sensor
Pulse number
Numbers of samples for averaging – it stabilizes a flow value by flow drifting. It is possible to set it by production on values 25, 50, 100, 150, 200, 250 of samples.
Suppressed flow – it defines a flow area (symmetric around zero), where all outputs values are set on zero.
8. ERROR REMOVAL AND METER REPAIR PROCEDURES FN50X0
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Page 26 of 32
Electromagnetic flowmeter FLONET FN50xx.1
ELIS PLZEŇ a. s.
Error removal and meter repair activities should be reserved to duly qualified staff skilled is maintenance of electronic equipment and acquainted with the labor safety rules applicable to the plant concerned. On request, the meter manufacturer will provide training for such staff. The manufacturer’s responsibility for any meter damage due to incorrect handling is precluded.
Prior to any work on the meter such as disconnection or removal of printed circuit boards, sensor disconnection, etc., make sure that the supply voltage is disconnected. At all times, be aware of the danger of electric shock.
8.1. FLOW-METER REPAIR PROCEDURE
Prior to any maintenance or repair action on the internal parts of the meter control unit including the power source, sensor disconnection, PC boards, etc. make sure that the supply voltage is disconnected. Warning: disregarding this instruction implies risk of electric shock.
The self-diagnostic feature of the electronic unit concerns basic errors indicated via LED diode – lighting
(lightless), flashing (not flashing), flashing regularly (irregularly).
On the basis of these conditions possible to check status of the flowmeter. Correct status is that when the
LED is flashing regularly about 3 times per second for small sizes, for bigger sizes is flashing slowly. A velocity of flushing matches with velocity of excitation of coils. The second LED is red and it must flush 1 per second. If a fault occurs it will appear by changing LEDs flashing.
Of course, it can ’t be evaluated all possible faults, that even when the LED lighting correctly number of output pulses and their frequency may not correspond to the measured flow.
Because the flowmeter has no display, it is the only visual check of status of the meter via LED on the circuit board (after removing the cover and cover plates electronics). It is necessary to connect PC with diagnostic software and in the section “ERRORS” to check, which error is signalized:
Code error
E00
E01
Description of error
No error
Overload of a range AD
Possible reason/removing of an error
E02
E03
E04
E05
E06
E07
E08
E09
E10
Step change of flow
Error of reading /recording to memory
Other error of the transmitter block
Alert -it is not possible to calibrate zero flow.
Low of current of excitation
Short circuit of excitation coils
Information
– zeroing is doing, any measurement
Hight resistance of measured medium
Error of output OUT1
–
Over limit flow rate
(Short time of step change of flow in the range from 0 to Q
4
)
If this error lasts, the PC board is in defect.
See code error E01
In case of big error of time RTC it is necessary to change of backup battery on the processor board. If this error lasts still, it is necessary to change the block of a transmitter.
If this error lasts, it is necessary to change the block of a transmitter
(processor board, board of outputs, board of measurement).
To repeat a calibration of zero flow after several seconds. If this error lasts, it is necessary to change the block of a transmitter (processor board, board of outputs, board of measurement).
Open circuit of excitation = defect of a sensor or interrupted connection between a transmitter and a sensor
Defected board of measurement
If this error lasts, it is necessary to change the block of a transmitter
(processor board, board of outputs, board of measurement).
Short circuit of excitation = defected sensor or shorted connection between a transmitter and a sensor
Checking of signal cables
Check a sensor by Simulator SF1.0.
A flowmeter does not measure for time of 1 min. This information is missing after finishing of zeroing and a measure again normally.
Indication of empty pipe.
E14 Exceeded over flow Q4
Frequency output over 10 kHz.
Frequency of pulse output over 100 Hz.
Gap between pulses is shorten than duration of pulse.
Checking of Q
4
(100%)
If this error lasts, it is necessary to change the block of a transmitter
(processor board, board of outputs, board of measurement).
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Page 27 of 32
Electromagnetic flowmeter FLONET FN50xx.1
ELIS PLZEŇ a. s.
9. PACKAGING
The product packaging shall meet the requirements regarding safe domestic and international transport or other conditions agreed to with the customer. In that, the manufacturer uses its own in-company packaging directives and standards.
10. PRODUCT ACCEPTANCE
The product acceptance procedure consists of visual inspection and check on the completeness of the delivered items with reference to the delivery note. On delivery to the customer, enclosed to the flowmeter
FLONET FN50XX shall be a delivery note, operation and maintenance manual and a statement on the product compliance with the respective standards.
11. WARRANTY CONDITIONS
Unless agreed otherwise between the manufacturer and the customer, the warranty period for electromagnetic flowmeters is 12 months counted from the delivery date. Within the warranty period, the manufacturer shall repair, free of charge, any product defects due to faulty materials or parts. In the case of a warranty repair, the warranty period shall be extended by the time the flowmeter was inoperative because of such repair. Manufacturer’s warranty shall not cover product defects or malfunctions due to incorrect product installation, operation, intentional damage, pilferage or damage due to force majeure circumstances.
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Electromagnetic flowmeter FLONET FN50xx.1
Page 28 of 32
ELIS PLZEŇ a. s.
12. PRODUCT ORDERING
Position in order number 1 2 3 4 5 6 7 - 8 9 10 11
ORDERING No.:
TYPE IDENTIFICATION
Sensor design
F N 5 0 1 flange (cold and other application) 1 wafer (cold and other application) 2 flange (heat meters) wafer (heat meters)
3
4
Flow meter design and equipment
ECONOMIC, compact
ECONOMIC, remote
0
1
TECHNICAL PARAMETERS
Dimension of sensor DN/max flow rate Qmax
[m3/h],
15/6,5 (1/2"/1717)
20/12 (3/4"/3170)
25/18 (1"/4755)
0 1
0 2
0 3
(inch/max flow
32/30 (1 1/4"/7920) 0 4 rate Qmax
40/45 (1 1/2"/11887) 0 5
[US G/h]) 50/72 (2"/19019) 0 6
65/120 (2 1/2"/31697) 0 7
Sensor flanges
80/180 (3"/47551)
100/280 (4"/73961)
125/430 (5"/113590)
150/650 (6"/171706)
200/1150 (8"/303756)
250/1800 (10"/475510)
300/2520 (12"/665712)
350/3500 (14"/924391)
400/4500 (16"/1188774)
500/7200 (20"/1902039)
ČSN EN 1092-1
ANSI B 16.5
600/10000 24" /2 641 721)
700/14000 (28"/3 698 380)
800/18000 32"/4 755 060)
0 8
0 9
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
2 0
2 1
1
2
JIS B2210
AS 4087
3
4
Material of sensor, surface treatment non-standard X
Sensor body and flanges made of carbon steel, painted of polyurethane 1 complete stainless steel 1.4301 2 non-standard X
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Sensor protection
Grounding
Electromagnetic flowmeter FLONET FN50xx.1
Page 29 of 32
ELIS PLZEŇ a. s.
Position in order number
Material of electrodes and grounding rings
Sensor lining
Nominal pressure PN
[bar]/psi [lb/in²]
Maximum temperature of measured fluid [ °C ]
Length of cables
Power supply
FLOW METER SETTINGS
Measurement in sensitivity
Number of samples for averaging stainless steel 1.4571 hastelloy C-276 non-standard
13 14 15 16 17 18 19 20 - 21 22
1
2
X hard, soft rubber (0 to 80 °C, DN20 to
DN800) teflon PTFE (-20 to +150 °C, DN15 to DN250)
E-CTFE (-20 to +130 °C, DN300 to DN800) non-standard
1
2
3
X standard IP 65 1 sensor to piping grounding electrode grounding rings
10/150
16/150
40/600
50
80
130
150
3
6
10
15 non-standard
85 ÷ 305 VAC, 47 ÷ 440 HZ standard ±0,5 % Qmax non-standard
25
50
100
150
200
250 non-standard
1
2
3
1
2
3
1
2
3
4
1
2
3
4
X
1
1
X
1
2
3
4
5
6
X
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
Electromagnetic flowmeter FLONET FN50xx.1
Page 30 of 32
ELIS PLZEŇ a. s.
Position in order number 22 23 - 24 - 25 26 27 - 28
Pulse output constant l/pulse
10
100
1000 non-standard
3
X
1
2 pulse output pulses for Q+ standard setting pulse length 100ms, 1
CALIBRATION
Calibration without calibration standard calibration acc to EN1434 without cal certificate standard calibration acc to EN1434 with cal certificate
1
2
3 above standard calibration acc to EN1434, accuracy ±0.5% without cal certificate 4 above standard calibration acc to EN1434, accuracy ±0.5% with cal certificate 5 standard calibration acc to ISO 4064 without cal certificate 6
7 standard calibration acc to ISO 4064 with cal certificate above standard calibration acc to ISO 4064, accuracy ±0.5% without cal certificate above standard calibration acc to ISO 4064, accuracy ±0.5% with cal certificate non-standard
8
9
X
PURCHASE CONDITIONS
Packaging no packaging standard export non-standard
Delivery personally by shipping agent on supplier’s costs by shipping agent on buyer’s costs non-standard
Warranty 6 months
12 months
18 months
24 months
36 months non-standard
IDENTIFICATION CODE
Number of manual flow meter
Es90716K
3
X
1
2
1
2
3
X
3
4
1
2
5
X
1
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
Design, Assembly and Service Manual
ELIS PLZEŇ a. s.
Electromagnetic flowmeter FLONET FN50xx.1
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722
Page 31 of 32
Es90716K
ELIS PLZEŇ a. s.
Design, Assembly and Service Manual
Electromagnetic flowmeter FLONET FN50xx.1
Manufacturer’s address:
ELIS PLZEŇ a. s.
Luční 15,
301 00
Plzeň
Czech Republic
Tel.: +420 377 517 711
Fax: +420 377 517 722
E-mail: [email protected]
http://www.elis.cz
Issue No. 1
Page 32 of 32
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722 Es90716K
advertisement