SGM-LEKTRA RBmag Electromagnetic flow meter Technical documentation

RBmag
battery powered electromagnetic flow meter
technical documentation EN Rev. A
RBmag - contents
CONTENTS
1-WARRANTY
pag. 3
2-CALIBRATION CERTIFICATE
pag. 3
3-PRODUCT
pag. 4
4-PERFORMANCE SPECIFICATIONS
pag. 5
5-FLOW RANGE
pag. 6
6-DIMENSION
pag. 8
7-INSTALLATION
pag. 13
8-ELECTRICAL CONNECTIONS
pag. 21
9-LOCAL OPERATOR INTERFACE (LOI)
pag. 27
10-PROGRAMMING
pag. 30
11-TROUBLESHOOTING
pag. 45
12-FACTORY TEST AND QUALITY CERTIFICATE
pag. 48
Page 2 of 48
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RBmag - warranty / calibration certificate
1-WARRANTY
Products supplied are guaranteed for a period of 12 (twelve) months from delivery date according to the conditions
specified in our sale conditions document.
Producer can choose to repair or replace the Product.
If the Product is repaired it will maintain the original term of guarantee, whereas if the Product is replaced it will have 12
(twelve) months of guarantee.
The warranty will be null if the Client modifies, repair or uses the Products for other purposes than the normal conditions
foreseen by instructions or Contract.
In no circumstances shall the producer be liable for direct, indirect or consequential or other loss or damage whether
caused by negligence on the part of the company or its employees or otherwise howsoever arising out of defective goods
2-CALIBRATION CERTIFICATE
All the electromagnetic flowmeter are tested by 3 point rigs calibration.
The producer releases a document on letterhead certifying the average error of the 3-point calibration.
The calibration certificate is supplied with the unit.
The company archives the test data of each electromagnetic flowmeter.
The calibration rig is certificated by N.I.M. (National Institute of Metrology), which is internationally recognizedby B.I.P.M.
(Bureau International des Poids et Metrologie) and complies with NTC ISO IEC 17025 standard.
All calibrations are made in accordance to EN 45001 standards and with an accuracy better than 99.97%
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Page 3 of 48
RBmag - features
3- PRODUCT
COMPACT VERSION
1. Sensor
2. Converter
2.1
REMOTE VERSION
1. Sensor
2. Connection housing
3. Connection cables
4. Converter, wall mouting
IDENTIFICATION
Each meter has an adhesive identification plate on which are the meter main data. The following picture describes the
information and data on the identification plate.
Model
Serial n°
Meter n°
P.Supply
Connection
Lining
Electrode
Sens. Factor
RBMAGY0032B2B1D0A1
FM005141720
032377
Battery
DN32 PN40
RUBBER
SS316
0.2293
IP67
1. Product code
2. Serial number
3. Production batch
4. Power supply
Page 4 of 48
5. Process connection
6. Lining material
7. Electrodes material
8. Sensor factor
9. Protection
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RBmag - features
4-FEATURES
Flow rate range
RBmag is able to process signals from fluids with flow rates of up to 10m / s in both directions (bidirectional meter).
Range dimension / lining material
PTFE DN10 ÷ DN500
RUBBER DN65 ÷ DN2000
Sensor material
SS321
Housing material
aluminium
Electrodes material
SS316L - Hastelloy C - Titanium - Tantalum - Platinum
Measure range
<0,1m3/h ÷ >110000m3/h
Accuracy
±0,5% standard; ±0,2% optional
Repeatability
±0,1%
Fluid conductivity
>5μS/cm.
Power supply
Battery powered, 5 years life
Ambient Temperature Limits
Remote version operating temperature:
RUBBER -10 ÷ +80°C; PTFE -40 ÷ +150°C
Compact version operating temperature:
RUBBER -10 ÷ +80°C; PTFE -40 ÷ +100°C
Storage temperature: -40÷85°C
Communication protocol
modbus (opt.)
Output
Frequency output: 0,1÷5000 Hz
Pulse output: open collector
Reverse Flow
Allow measure reverse flow.
Output Testing
Frequency Source: Transmitter can be commanded to supply a specified test frequency between 0.1 and 5000 Hz
Start-up Time
0.5 seconds.
Low Flow Cutoff
Adjustable between 0.0 and 9.9%Qmax. Below selected value, output is driven to the zero flow rate signal level.
Humidity Limits
0-100% RH to 150 °F (65 °C), not condensing.
Damping
Adjustable between 0.1 and 99 seconds.
Compact version IP rating
IP67
Remote version IP rating
sensor IP67 / IP68 (by request) - converter IP67
Anti-condensation filter
Anti-condensation filter installed on converter
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Page 5 of 48
RBmag - flow range
5-FLOW RANGE
5.1 FLOW RANGE GRAPHIC
Flow range from DN3 to DN500 (starting from DN10)
Page 6 of 48
Flow range from DN600 to DN2000
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RBmag - flow range
5.2 FLOW RANGE TABLES
DN10 ÷ 300
DN350 ÷ 2000
DN
(mm)
Range: Minimum (0,5 m/s) /
Maximum (10 m/s)
DN
(mm)
Range: Minimum (0,5 m/s) /
Maximum (10 m/s)
10
15
20
25
32
40
50
65
80
100
125
150
200
250
300
0.14 ÷ 2.9 m3/h
0.3 ÷ 6 m3/h
0.5 ÷ 12 m3/h
0.6 ÷ 18 m3/h
1 ÷ 30 m3/h
1.8 ÷ 42 m3/h
3 ÷ 66 m3/h
8.8 ÷ 120 m3/h
8.9 ÷ 180 m3/h
11 ÷ 282 m3/h
20 ÷ 450 m3/h
30 ÷ 600 m3/h
50 ÷ 1100 m3/h
85 ÷ 1700 m3/h
110 ÷ 2400 m3/h
350
400
450
500
600
700
800
900
1000
1200
1400
1600
1800
2000
180 ÷ 3300 m3/h
220 ÷ 4200 m3/h
270 ÷ 5400 m3/h
320 ÷ 6600 m3/h
490 ÷ 9600 m3/h
680 ÷ 13500 m3/h
900 ÷ 18000 m3/h
1200 ÷ 22500 m3/h
1450 ÷ 28000 m3/h
2500 ÷ 40000 m3/h
3000 ÷ 55000 m3/h
4000 ÷ 70000 m3/h
5000 ÷ 90000 m3/h
6000 ÷ 110000 m3/h
5.3 LOAD LOSS
Adaptation cones
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Page 7 of 48
RBmag - dimensions
6-DIMENSIONS
6.1 REMOTE VERSION CONVERTER
170 mm
177 mm
215,5 mm
6.2 WALL MOUNTING REMOTE VERSION CONVERTER
150 mm
110 mm
Page 8 of 48
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RBmag - dimensions
B
6.3 COMPACT VERSION DN10 ÷ DN80 PN16 - PN40
ØD
A
PN 16 - PN 40
DN
(mm)
10
15
20
25
32
40
50
65
80
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A
(mm)
B
(mm)
ØD
(mm)
200
295
295
300
300
315
335
344
360
375
90
95
105
115
140
150
165
185
200
Page 9 of 48
RBmag - dimensions
B
6.3 COMPACT VERSION DN100 ÷ DN1000 PN10 - PN16 - PN40
A
ØD
PN 10
Page 10 of 48
PN 16
PN 40
DN
(mm)
A
(mm)
B
(mm)
ØD
(mm)
B
(mm)
ØD
(mm)
B
(mm)
ØD
(mm)
100
125
150
200
250
300
350
400
450
500
600
700
800
900
1000
250
250
300
350
450
500
550
600
600
600
600
700
800
900
1000
520
570
620
670
730
780
830
930
1050
1165
1270
1360
340
395
445
505
565
615
670
780
895
1015
1115
1230
400
420
460
520
575
620
678
738
793
850
960
1080
1170
1275
1375
220
250
285
340
405
460
520
580
640
715
840
910
1025
1125
1255
410
435
468
538
598
648
708
778
816
870
985
-
235
270
300
375
450
515
580
660
685
755
890
-
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RBmag - dimensions
B
6.4 REMOTE VERSION DN10 ÷ DN25 PN16 - PN40
A
ØD
DN
(mm)
10
15
20
25
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PN 16 - PN 40
A
(mm)
B
(mm)
ØD
(mm)
200
235
235
240
240
90
95
105
115
Page 11 of 48
RBmag - dimensions
B
6.5 REMOTE VERSION DN32 ÷ DN1000 PN10 - PN16 - PN40
A
ØD
PN 10
Page 12 of 48
PN 16
PN 40
DN
(mm)
A
(mm)
B
(mm)
ØD
(mm)
B
(mm)
ØD
(mm)
B
(mm)
ØD
(mm)
32
40
50
65
80
100
125
150
200
250
300
350
400
450
500
600
700
800
900
1000
200
200
200
200
200
250
250
300
350
450
500
550
600
600
600
600
700
800
900
1000
450
505
550
605
665
715
765
870
987
1100
1202
1293
340
395
445
505
565
615
670
780
895
1015
1115
1230
251
270
280
298
315
333
358
393
450
510
558
613
673
728
785
900
995
1105
1207
1306
140
150
165
185
200
220
250
285
340
405
460
520
580
640
715
840
910
1025
1125
1255
254
270
280
298
315
343
368
400
468
533
586
643
713
751
805
810
-
140
150
165
185
200
235
270
300
375
450
515
580
660
685
755
890
-
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RBmag - installation
7-INSTALLATION
7.1
SAFETY MEASURE
Instructions and procedures in this section may require special precautions to ensure the safety of the personnel per
forming the operations. Information that raises potential safety issues is indicated by a warning symbol . Please refer
to the following safety messages before performing an operation preceded by this symbol.
7.2
WARNINGS
7.2.1 Explosions could result in death or serious injury
- Verify that the operating atmosphere of the sensor pipe and transmitter is consisten with the appropriate hazardous
locations certifications.
- Do not remove the transmitter cover in explosive atmospheres when the circuit is alive.
7.2.2 Failure to follow safe installation and servicing guidelines could result in death or serious injury
- Make sure only qualified personnel perform the installation.
- Do not perform any service other than those contained in this manual unless qualified.
7.3 PRE-INSTALLATION
There are several pre-installation steps that make the installation process easier. They include identifying the options
and configurations that apply to your application, setting the hardware switches if necessary, and consideration of
mechanical, electrical, and environmental requirements. Please remember that the sensor pipe liner is vulnerable to
handling damage. Never place anything through the sensor pipe for the purpose of lifting or gaining leverage. Damaged
liner can render the sensor pipe useless.
7.3.1 Identify Options and Configurations
Standard application of the RBmag includes control of the sensor pipe coils and one or more of the following con
figurations or options:
- Pulse output
Be sure to identify the options and configurations that apply to your situation, and keep a list of them nearby during
the installation and configuration procedures.
7.3.2 Mechanical Considerations
The mounting site for the RBmag Integral Mount Transmitter should provide enough room for secure mounting,
easy access to the conduit ports, full opening of the transmitter covers, and easy readability of the local operator
interface (LOI) screen.The LOI can be rotated in 90° increments.
7.3.3 Lift
The flowmeter can be lifted using the lift as shown in following pictures. The safe load and measure for the lift
should reach to the relative requirement. Don’t lift the flowmeter using the rope to tie the connection between
the sensor and the transmitter (compact version) or the connecting box (remote version)
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Page 13 of 48
RBmag - installation
7.4
INSTALLATION GENERAL CRITERIA
The flowmeter can test automatically flow direction. Because the direction arrow marked on the nameplate is flow direction when calibrated in factory, you should install the flowmeter to make the actual flow direction same as the flow
direction arrow marked on the nameplate. If this is not possible, simply reverse the direct flow direction through the
“Indication” (see par. 10.4.4.2.4)
The upstream straight pipe should be longer than 5 × DN to guarantee the accuracy of measurement. When the distance
is more than 5×DN between the device (e.g. cone pipe, orifice plate, valve) and the sensor of flowmeter, their affection
is negligible. And the downstream straight pipe should be more than 3×DN
7.5 INSTALLATION IN PIPELINE
In principle, the measurement of the electromagnetic flowmeter is independence of the distribution of velocity as long
as the distribution of velocity in measuring tube is symmetrical. Installation may be horizontal or vertical, but make sure
no deposit on the electrodes when horizontal installation. See Fig.13-A.
Fig.13-A. Installation in horizontal or vertical pipeline
To install an rectifier or straight pipe is necessary to normalize the flow profile if there are pipe elbow, flow regulation
valve or half-open ball valve in front of the sensor. See fig.13-B.
5 x DN
3 x DN
Fig.13-B. Requirement to install the flowmeter straight pipes
Page 14 of 48
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RBmag - installation
The electromagnetic flowmeter must be installed so that the pipe is always completely filled with fluid. In partially filled
pipe case, the flowmeter must be installed with the siphon phenomenon, for which the pipe stretch where the meter is
installed is kept always full. See Fig.14-A.
2x
5x
DN
DN
Fig.14-A Installation in partially filled pipes
The electromagnetic flowmeter must not be installed in the pipe section with a free pipe outlet that could run empty.
When installating in a downstream pipe, please make sure the pipe is always fully filled with medium
See Fig.14-B
2 x DN
Fig.14-B Installation in pipe without emptying
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Page 15 of 48
RBmag - installation
The electromagnetic flowmeter can not be installed at the pipe highest point, because air or gas accumulations may
occur in the measuring pipe. See Fig.15-A
Fig.15-A Installation at highest point
The electromagnetic flowmeter can not be installed upstream of a pump to prevent cavitation, which can damage the
sensor lining. See Fig.15-B
Fig.15-B Near pumps installation
Install a siphon (a) with a vent valve (b) downstream of the sensor in down pipes longer than 5 meters. This precaution
is to avoid low pressure and the consequent risk of damage to the lining of the measuring tube. See Fig.15-C
b
a
>5 mt
Fig.15-C Installation in proximity of a > 5m down pipe section
Page 16 of 48
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RBmag - installation
7.6
INSTALLATION PRECAUTIONS
An all-weather cover should be used to prevent the housing from the direct sunlight or rain when the device in outdoors
The flowmeter should the excessive vibrations, large ambient temperature changing and long-time shower. It should
be prevent from the leakage of the corrosive liquid.
7.7
PIPE CONNECTION
The sensor itself can not be as its support, it should be supported to the connecting pipes. And the sensor should not
withstand too big fastening stress. It should be taken to account to eliminate the affection of the stress caused by thermal expansion.
>10 mt
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Page 17 of 48
RBmag - installation
7.8
MOUNTING REQUIREMENTS
a) The sensor pipe and the line pipes must have the same axis. For the sensors under DN50, the axial difference
between the measuring tube and operating pipe should be less than 1.5mm; for the sensors from DN65 to DN300,
it should be less than 2mm; for the sensor over DN350, it should be less than 4mm.
b) The gasket between flanges should have a good corrosive resistance. The gasket must not extend to the pipe
inside.
c) The threads of the fasten bolts and nuts should be in good condition. The bolts should be fastened using torque
spanner with certain torque according the size of flange.
d) It should take separate measure to prevent the lining from heat when weld or flame cutting in the pipe closed to
sensor. If the sensor is installed in a well or immersed in water, the connecting box for sensor must be filled
and sealed with sealing glue after commissioning.
7.9
ACCESSORIES
5.9.1 Grounding ring
Material: SS 316L or Hastelloy C
Thickness: 3mm for SS 316L or 1mm for Hastelloy C
For the non-conductive pipe, the grounding rings should be installed between the flanges of sensor and pipe to make
the flowmeter and measured medium same potential.
To make equipotential the meter with the fluid, the grounding rings must be in direct contact with the fluid to be
measured.
Ø6mm
3mm AISI316L
1mm Hastelloy C
Grounding ring
Page 18 of 48
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RBmag - installation
7.10 EQUIPOTENTIALITY AND ELECTRICAL INTERFERENCE REDUCTION
The measuring circuit considers the measured fluid as zero potential. The measured fluid is grounding potential in most
of application, therefore grounding connection actually means connecting to measured fluid. The grounding cable for
sensor is connected to metal pipe welding with flanges. The metal tube isolates from the measuring fluid because of
lining, so the flanges of sensor should be connected to the flanges contacting directly measuring fluid using wires. The
resistance for grounding connection should be less than 10ohm. In most of application, it is unnecessary to take special
measure for installing sensor, only require the signal cable separate from the main cable. If the sensor with cathode
protection or the process with electroanalysis the main current must not go through the measuring fluid in the sensor.
The following measure should be taken in order to reduce the affection of magnetic flied:
a) In metal piping, the device is made potential equalization via the connection between the sensor and the adjoining
pipe. The bolt connection for flanges can not be used instead of the electric connection, it must have an additional
electric connection as shown in Fig.18A.
Fig.18A Sensor equipotentiality
b) For the non-inductive pipe, the grounding rings should be installed between the both flanges for sensor and the
both flanges for pipe. See Fig.18B.
SS316 Sensor
Grounding Ring
Non-conductive pipes
Fig.18B Grounding with non-conductive pipes
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Page 19 of 48
RBmag - installation
c) Some systems, such as pipes with cathodic protection, may be affected by potential disturbance because not all the
line is at ground potential. In order to eliminate this type of interference, it must be isolate the line with two rubber
pipes as shown in Fig.19A.
Rubber Pipe
Rubber Pipe
SS316 Pipe
Fig.19A Pipe segmentation
7.11 PREPARATION FOR OPERATION
Strictly check the instalment and wirings before it gets into operation!
It shall be pointed out that the instrument, including the sensor and converter has been fully adjusted, calibrated
with actual flow, and inspected under strict measures. All shipped units are certified. No further adjustments are
required when put it into operation. Observing the contents in this manual, to check and analyze any malfunction
The following steps are to be followed to get the instrument into operation.
1) Make sure that the sensor is completely filled with fluid.
2) One minute late, the value displayed in the indicator will reach some amount, which means the connections of wires
are correct. If the flow direction is wrong, then change the flow direction on the converter.
3) Zero verification. Shut off the valve tight in downstream first and then the valve in upstream, to let the medium in
the pipeline stops. The displayed value should be 0. The value displayed can be corrected at the converter if the
value is different than 0: ensure that no leaks.
7.12 MAINTENANCE
In general, they are not necessary maintenance and supply of the magnetic flowmeter. Only in the case in which the
product can adhere to the inner wall of the sensor, and its electrodes, it is necessary to perform periodic cleaning
operations.
Be careful not to damage the lining and the electrodes.
Page 20 of 48
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RBmag - electrical connections
8-ELECTRICAL CONNECTIONS
8.1 CABLE ENTRY
The compact version converter enclosure has n. 2 M20x1.5 cable glands.
The converter enclosure remote version has n.2 M20x1.5 cable glands for power supply and outputs signal, and 2
M16x1.5 cable glands for sensor pipe connection
8.2
INFILTRATION AND HUMIDITY PREVENTION
To avoid the humidity infiltration inside the converter and sensor pipe is recommended:
- fully well tighten the cap and the cable glands
- position the cable so that it forms a downward curve at the M20x1.5 and/or M16x1.5 output (see below figure); in
this way the condensation and/or rain water will tend to drip from the curve bottom.
8.3 ACCESS TO CONNECTIONS
To connect the output or the sensor (remote version), open the converter blind cover is necessary (see image below).
Whe the cover is opened, the circuit board with the terminal connections and the test point switches are visible. The
connections details are shown in the following paragraphs.
N.B. The dip switches must be always be set to ON.
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Page 21 of 48
RBmag - electrical connections - digital output
8.4.1 Digital output
When digital output is set in frequency mode, it generates an 0.1÷5000Hz output signal proportional to the measured
flow rate; however if it’s set in pulsed mode generates an output signal in relation to the totalized volume increase.
The signal is normally used in combination with an external totalizer, a pulse counter or an acquisition system.
The resistance in the circuit must be equal to or greater than 100Kohms.
Follow the below steps to connect the signal cable to the transmitter:
1) Insert signal cable through the cable gland.
2) Connect two wires to F+ and F- terminals
N.B. - When the RBmag pulse output is connected to an acquisition system that requires a current, a properly sized
pull-up resistor must be connected to ensure the minimum current required by the acquisition system connected
(see drawing below); example: if the acquisition system requires a min. current of 10mA, a 2,4Kohm pull-up resistor
must be connected (according to the calculation R = V / I = 24V / 10mA = 2,4Kohm) between an external power
supply of 24 Vdc and the acquisition system input terminal
The below drawing shows the connection diagram between the RBMAG flowmeter and the 199-B1X counter unit
+12
IN1
GT
COM
IN2
RST
Connection example
to counter unit
Mod.:199-B1X
F+
F-
F/P+
max 24Vdc
Optional
pull-up
resistance
min .ȍ
max10mA
F+
+24Vdc
0Vdc
F-
Converter
Page 22 of 48
Programmable
pulse width
Default=0.5ms
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RBmag - electrical connections - RS485 serial output
8.4.2 RS485 serial output
Communicate via MODBUS is possible in models with RS485 serial port.
Connect the serial cable to A+ and B- terminals
The below drawing shows connection example diagram between RBMAG flowmeter and a notebook.
Connection example to
PC
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Page 23 of 48
RBmag - electrical connections - remote version
8.5
REMOTE VERSION
During the remote version installation comply with the following information to ensure correct measurements:
1) The cables must be laid in an armored conduit or fixed along their path to avoid errors in measurement, especially
with low conductivity fluids
2) The cables should be away from electrical machinery and switching devices such as contactors or solenoid valves.
3) The cables must not be in conduit with power cables or cables for the switching devices control
4) When necessary, ensure the equipotential between sensor and transmitter.
5) The maximum cable length is a fluid conductivity function. Refer to paragraph 8.5.2.
Connect the sensor to the converter according to the below diagram.
CONVERTER TERMINAL
CONVERTER
TRIPOLAR CABLE ELECTRODES
SIGNAL
BIPOLAR CABLE COIL
CURRENT
SENSOR
Page 24 of 48
SENSOR TERMINAL
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RBmag - electrical connections - remote version
8.5.1 Remote version wiring
Cable
Wire
Num.
Color
4
5
black
brown
braid
white
yell./green
brown
braid
Bipolar
1
2
3
Tripolar
Function
Terminal
position
coil
coil
shield
electrode 1
common GND
electrode 2
shield
4
5
1
2
3
1
2
3
SHIELDED TRIPOLAR CABLE
4
5
SHIELDED BIPOLAR CABLE
8.5.2 Connecting cables length
Maximum length of the connecting cables between the sensor and the convertor is determined by the fluid conductivity value.
In the graph below the gray highlighted area indicates the allowed cable length in relation to the fluid conductivity
value. With an 25 microS fluid conductivity, for example, the connection cables will have a maximum length of 25
meters.
Cable length
meters
50
25
10
5
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25
50
Fluid conductivity
μS/cm
Page 25 of 48
RBmag - electrical connections - remote version
8.5.3 Connectiong cables
8.5.3.1 - Coil cable technical specification
Shielded bipolar cable FR20H2R 2x1.5 section
Conductors
Insulations
Conductors Colors
Cable stranding
Shielding
Sheath
Marking
Operating temperature
Test voltage
Working voltage
Conductors electrical resistance
Reference Standards
Tinned copper stranded wire, class 5
PVC R2 Ø 2,8mm ± 0,1
Black - Brown
Concentric with polyester tape
Tinned copper braid
PVC RZ resistant to hydrocarbons; Ø 8,2mm ± 0,30; RAL5015 blue color
SGM-LEKTRA RODANO MILANO ITALY - 525B005A
-25÷+70°C (fixed installation)
3KV V.c.a.
450/750V
CEI 20-29
CEI 20-22 II-IEC 332.3A-ROHS 2011/65/UE(ROHS 2)
8.5.3.2 - Electrodes signal cable technical specification
Shielded tripolar cable FR20H2R 3x1.5 section
Conductors
Insulations
Conductors Colors
Cable stranding
Shielding
Sheath
Marking
Operating temperature
Test voltage
Working voltage
Conductors electrical resistance
Reference Standards
Page 26 of 48
Tinned copper stranded wire, class 5
PVC R2 Ø 2,8mm ± 0,1
White - Brown - Yellow/Green
Concentric with polyester tape
Tinned copper braid
PVC RZ resistant to hydrocarbons; Ø 8,2mm ± 0,30; RAL5015 blue color
SGM-LEKTRA RODANO MILANO ITALY - 525B005A
-25÷+70°C (fixed installation)
3KV V.c.a.
450/750V
CEI 20-29
CEI 20-22 II-IEC 332.3A-ROHS 2011/65/UE(ROHS 2)
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RBmag - loi
9-LOCAL OPERATOR INTERFACE (LOI)
LOI is an operator communications center for the RPmag. Through the LOI, the operator can access any
transmitter function for changing configuration parameter settings, checking totalized values, or other functions.
9.1 SAFETY MESSAGES
Instructions and procedures in this section may require special precautions to ensure the safety of the personnel performing the operations. Information that raises potential safety issues is indicated by a warning symbol.
Please refer to the following safety messages before performing an operation preceded by this symbol:
9.2 WARNINGS
Explosions could result in death or serious injury
-Verify that the area of installation and operation comply with the characteristics of the measuring tube and the
transmitter.
-Make sure only qualified personnel perform the installation.
-Do not perform any service other than those contained in this manual unless qualified.
9.3 LOI FEATURES
LOI has an alphanumeric liquid crystal display LCD visible from any angle. There are four touch keys on the pad, and
a infrared decoder to receive keys that on the remote encoder.
Following table lists and details the functions of the LOI keys.
LOI KEY
FUNCTION
Enter; Moves to the previous display field; Save parameters
Moves the cursor to the next higher field; Changes user-selected variables in a field to next higher
value; Changes parameters on a predefined list; Change display page; Change parameters page
when browsing parameters
Moves the cursor to next lower field; Changes user-selected variables in a field to next lower
value; Changes parameters on a predefined list; Change display page; Change parameters page
when browsing parameters
Toggle keypad lock (keep pushed for 3 seconds)
Enter menu; Moves cursor to next user-selected variable; Changes parameters on a predefined
list; Aborts a chosen operation; Aborts browse parameters
Zero Trim (from RUN mode)
DISPLAY
KEYBOARD
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Page 27 of 48
RBmag - loi
9.4
DISPLAY ROTATION
Each magnetic flowmeter installation is different from application to application; therefore, the display can be rotated to
accommodate various setup using the following procedure:
1. Unscrew the transparent cover.
2. Remove the four screws that secure the “display/electronics” bracket to the container, paying attention to the
wiring between the electronics and the terminal.
3. Rotate the display / electronics bracket to set the position (minimum 90° rotation).
4. Tighten the four screws that secure the “display/electronics” bracket to the container.
5. Tighten the transparent cover.
Page 28 of 48
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RBmag - loi
9.5
CONVERTER ROTATION
To a greater functionality and adaptation to the application the entire converter, in addition to the display, can be rotated.
Follow the following steps to make the change.
1. Remove the four screws that secure the converter to the sensor pipe.
2. Slightly lift the converter paying attention to the electrical connections between the sensor pipe and the terminal.
3. Turn the converter (minimum 90° rotation) bringing it to the desired position.
4. Fix the converter to the sensor with the 4 fixing screws.
1
2
3
4
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Page 29 of 48
RBmag - programming
10-PROGRAMMING
10 DATA ENTRY
The LOI keypad has no numerical keys. Enter numerical data using the following procedure:
1. Access the appropriate function.
2. Use
to highlight the digit you want to enter or change.
3. Use
or
to change the highlighted value.
For numerical data,
or
toggles through the digits 0÷9,decimal point; For alphabetical data, they toggle
through the letters of the alphabet A-Z, digits 0÷9, and the symbols &, +, -, *, /, $, @, %, and the blank space
or
are also used to toggle through pre-determined choices that do not require data entry.).
(
4. Use
5. Push
to highlight and change other digits you want to change.
to confirm data entry.
10.1 KEYBOARD LOCK
Pushing
from RUN mode, for 5 seconds, keyboard will be locked.
simbol as shown in adjacent picture.
Display will show
Pushing
from RUN mode, for 5 seconds, keyboard will be un-locked.
10.2 LCD CONTRAST
By holding down button
sing
,from RUN mode, you can increase (by pressing the button
) or decrease (by pres-
) the LCD screen contrast according to your needs.
10.3 DISPLAY PAGE
The RBmag, in RUN mode, has two pages to display data and status, press
or
to change page.
Primary page:
Flow rate
Forward total
Flow % value indicator
Secondary page:
Net total
Reverse total
Flow velocity
Page 30 of 48
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RBmag - programming - basic setup
10.4 LOI MENU
key from run mode: display will show the list of configuration menu as shown
Push
here next.
Press
or
keys to select the desired menu, then press
Basic
System
Calibration
Test
key to access.
10.4.1 BASIC
BASIC
PV Units
m3/h
PV Decimal
2
Total Units
m3
Total Decimal
3
Damping (s)
02.0
10.4.2 BASIC CONFIGURATION (BASIC)
Press
key from run mode: the display will be as shown here next, then press
enter in “Basic” menu
Push
or
keys to select the desired function and press
key to access
10.4.2.1 - PV Units
PV Units variable specifies the format in which the flow rate will be displayed.
Default: m3/h.
Range: L/s; m3/s; G/s; L/m; m3/m; G/m; L/h; m3/h; G/h.
Press
With
,key the display will be as shown here next.
or
to
Basic
System
Calibration
Test
PV Units
PV Decimal
Total Units
Total Decimal
PV Units
m3/h
select the unit.
m3/h
Push
to confirm, the display will be as shown here next.
Press
key to exit and confirm the selection; press
delete the selection
PV Units
key to exit and
10.4.2.2 - PV Decimal
PV Decimal specifies how many decimals are displayed after the decimal point.
Default: 2
Range: 1÷3
Press
With
key: the display will be as shown here next.
or
m3/h
-ENT ESC-
m3/h
PV Units
PV Decimal
Total Units
Total Decimal
PV Decimal
3
select the decimal number places to display
3
Press
to confirm, the display will be as shown here next.
Press the
key to exit and confirm the selection; press the
and delete the selection..
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PV Decimal
3
key to exit
-ENT ESC-
3
Page 31 of 48
RBmag - programming - basic setup
10.4.2.3 - Total Units
Total Units specifies the counter display unit
Default: m3
Range: L, Litri; m3, Metri cubi; G, galloni
Press the
With
PV Units
PV Decimal
Total Units
Total Decimal
Total Units
key: the display will be as shown here next.
or
m³
select the counter display unit
m³
Press
Total Units
to confirm, the display will be as shown here next.
press the
key to exit and confirm the selection; press the
and delete the selection.
key to exit
m³
-ENT ESC-
10.4.2.4 - Total Decimal
Total Decimal specifies how many decimals are displayed after decimal point.
Default: 3
Range: 1÷3
Press the
With
key: the display will be as shown here next.
or
m³
PV Units
PV Decimal
Total Units
Total Decimal
Total Decimal
3
select the decimal number places to display.
3
Press
Total Decimal
to confirm, the display will be as shown here next.
Press the
key to exit and confirm the selection; press the
delete the selection.
3
key to exit and
-ENT ESC-
10.4.2.5 - Damping (s)
Damping(S) sets the delay time in seconds for changes in reading. It ‘used to
mitigate the fluctuations in flow measurement..
Default: 2;
Range: 0.1÷99.9
Press the
With
key the display will be as shown here next.
or
change the digit, with
3
PV Decimal
Total Units
Total Decimal
Damping (s)
Damping (s)
02.0
moves the cursor.
Max:
Min:
99.9
0.1
02.0
Press
to confirm, the display will be as shown here next.
key to exit and confirm the selection; press the
Press the
delete the selection.
Page 32 of 48
Damping (s)
2
key to exit and
-ENT ESC-
3
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RBmag - programming - system setup
10.4.3 SYSTEM SETUP
SYSTEM
Language
Signal
Pulse Output
ITALIANO / ENGLISH
Q max (m3/h)
(according to DN)
Low cutoff %
1
Direction
Bid./Fwd/Reverse
Indication
FORWARD / REVERSE
Densita(g/ml)
Density(g/ml)
1.000
LPM Mode
1:2
Freq Max (Hz)
1000.0
Liter/Pulse
0.00000
Pulse width (ms)
0000.5
Plulse level
Active H / Active L
Freq Enable
No / Yes
RS485 Protocol
MODBUS RTU
Baudrate
9600
Data Bit
8
Parity
None
Stop bit
1
Dev Address
001
Clear Total
total
No / Yes
FWD Preset m3
000.000000
Rev Preset m3
000.000000
RS485 Output
Total admin
Load settings
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No / Yes
Page 33 of 48
RBmag - programming - system setup
10.4.4 SYSTEM CONFIGURATION (SYSTEM)
Press the
key from run mode, then press the
button to enter. Press the
the
press the
or
key to select “System” and press
keys to select the desired function and
key to access
Language
Signal
Pulse Output
RS485 Output
10.4.4.1 - Language
Allows menu language selection.
Default: ENGLISH;
Range: ITALIANO - ENGLISH
Press
With
Basic
System
Calibration
Test
Language
key: the display will be as shown here next.
or
select the parameter setting.
ITALIANO
Press
to confirm, the display will be as shown here next.
key to exit and confirm the selection; press the
Press the
the selection.
Language
key to exit and delete
ENGLISH
Language
Signal
Pulse Output
RS485 Output
10.4.4.2 - Signal
Press
-ENT ESC-
key to enter the submenu “Signal”
Qmax (m3/h)
Low Cutoff %
Direction
Indication
10.4.4.2.1 - Qmax (m3/h)
Set the flow measurement 100%. This value adjusts the frequency output end scale.
The range is related to the sensor DN
Press
With
key: the display will be as shown here next.
or
change the digit, with
moves the cursor.
Qmax (m3/h)
100mm 282.74340
Max:
Min:
424.11500
5.654867
282.74340
Press
to confirm, the display will be as shown here next.
Press
key to exit and confirm the selection; press
selection.
Page 34 of 48
key to exit and delete the Qmax (m3/h)
282.743
-ENT ESC182.743
125mm
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RBmag - programming - system setup
10.4.4.2.2 - LowCutoff %
Low Cutoff specifies the Qmax% value below which the instantaneous flow measurement reading (direct or reverse) and the outputs are forced to zero.
Default: 1.0 Range: 0.0÷9.9
Press
With
key: the display will be as shown here next.
or
change the digit, with
Qmax (m3/h)
Low Cutoff %
Direction
Indication
Low Cutoff %
moves the cursor.
1.0
Max:
Min:
9.9
0.0
2.0
Press
to confirm, the display will be as shown here next.
key to exit and confirm the selection; press the
Press the
the selection.
key to exit and delete
Low Cutoff %
1.0
-ENT ESC2.0
10.4.4.2.3 - Direction
This parameter enables the flow direction measurement
Default: Bid (bidirectional)
Range: Fwd (forward); Rev (reverse); Bid. (bidirectional)
Press the
With
Qmax (m3/h)
Low Cutoff %
Direction
Indication
key: the display will be as shown here next.
or
Direction
Bid
select the parameter setting.
Fwd
Press
to confirm, the display will be as shown here next.
key to exit and confirm the selection; press the
Press the
the selection.
Direction
Bid
key to exit andvdelete
-ENT ESC-
Fwd
10.4.4.2.4 - Indication
Set what is the positive flow direction compared to the arrow on the sensor.
Default: Fwd (forward)
Range: Fwd (forward); Rev (reverse)
Press the
With
key: the display will be as shown here next.
or
Qmax (m3/h)
Low Cutoff %
Direction
Indication
Indication
select the parameter setting.
FORWARD
REVERSE
Press
to confirm, the display will be as shown here next.
Press the
key to exit and confirm the selection; press the
the selection.
www.sgm-lektra.eu
Indication
key to exit and delete
FORWARD
-ENT ESCREVERSE
Page 35 of 48
RBmag - programming - system setup
10.4.4.2.5 - Density(g/ml)
Sets the fluid specific weight to convert the measured volume value by weight.
Default: 1;
Range: 0.100÷9.999
Press the
With
key: the display will be as shown here next.
or
change the digit, with
Low Cutoff %
Direction
Indication
Density (g/ml)
Density (g/ml)
1.000
moves the cursor.
Max:
Min:
9.999
0.100
1.000
to confirm, the display will be as shown here next.
Press
Press the
key to exit and confirm the selection; press the
the selection.
key to exit and delete
Density (g/ml)
1.000
-ENT ESC1.000
10.4.4.2.6 - LPM Mode
Set the detection interval of flow measurement.
By setting the minimun detection interval of1 s (1:0), the operation is similar to electromagnetic flowmeter with external power; increasing the detection interval (max. 16s)
increasis the maximum duration of the supply battery.
Default: 1:2 (measurement every 2s)
Range: 1:0 / 1:2 / 1:4 / 1:8 / 1:16
Press the
With
Press
LPM Mode
key: the display will be as shown here next.
or
change the digit, with
key to exit and confirm the selection; press the
Press the
the selection.
key to exit and delete
1:2
1:4
Freq Max (Hz)
Liter / pulse
Pulsewidth (ms)
Pulse Level
Freq Max (Hz)
key: the display will be as shown here next.
change the digit, with
1:2
Language
Signal
Pulse Output
RS485 Output
key to enter the sub menu “Pulse Output”.
or
LPM MODE
LPM MODE
-ENT ESCLPM MODE
10.4.4.3.1 - Freq Max (Hz)
Sets the maximum frequency in relation to Qmax. The digital output is active as a frequency output only when the parameter “Liter / Pulse” is set to 0.0.
Default: 1000.0; Range: 100.0÷5000.0
With
1:2
LPM Mode
10.4.4.3 - Pulse Output
Press the
LPM MODE
moves the cursor.
to confirm, the display will be as shown here next.
Press the
Direction
Indication
Density (g/ml)
LPM Mode
1000.0
moves the cursor.
Max:
Min:
5000.0
100.0
1000.0
Press
to confirm, the display will be as shown here next.
key to exit and confirm the selection; press the
Press the
delete the selection.
Page 36 of 48
Freq Max (Hz)
1000.0
key to exit and
-ENT ESC-
1000.0
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RBmag - programming - system setup
10.4.4.3.2 - Liter/Pulse
Set the volume per pulse. When this parameter is set to 0.0, the digital output is active
as a frequency output (see “Freq Max (Hz)”).
Default: 0.0; Range: 0.0055÷max. according to the DN
key: the display will be as shown here next.
Press the
With
or
change the digit, with
Freq Max (Hz)
Liter / pulse
Pulsewidth (ms)
Pulse Level
Liter / pulse
moves the cursor.
0.000000
Max: -----------------Min:
0.01570
1.000000
Press
to confirm, the display will be as shown here next.
Press the
key to exit and confirm the selection; press the
the selection.
key to exit and delete
Liter / pulse
0.000000
-ENT ESC1.000000
10.4.4.3.3 - Pulsewidth (ms)
Sets the pulse width in ms.
Default: 000.5;
Range: 0000.0÷1000.0
Press the
With
Freq Max (Hz)
Liter / pulse
PulseWidth (ms)
Pulse Level
key: the display will be as shown here next.
or
change the digit, with
PulseWidth (ms)
moves the cursor.
000.5
WARNING - The “Pulsewidth (ms)” parameter must be set to 0.0 when the digital
output is used as a frequency output
Press
to confirm, the display will be as shown here next.
Press the
key to exit and confirm the selection; press the
the selection.
With
001.0
000.5
key to exit and delete
-ENT ESC-
001.0
key: the display will be as shown here next.
or
500.0
0.0
PulseWidth (ms)
10.4.4.3.4 - Pulse Level
Sets the pulse output energy level. When set LOW the pulse count is low, when set HIGH,
the pulse count is high.
Default: Active H (HIGH); Range: Active L (LOW) ÷ Active H (HIGH)
Press the
Max:
Min:
Freq Max (Hz)
Liter / pulse
PulseWidth (ms)
Pulse Level
Pulse Level
select the parameter setting.
Active L
Active H
Press
to confirm, the display will be as shown here next.
Press the
key to exit and confirm the selection; press the
the selection.
www.sgm-lektra.eu
Pulse Level
key to exit and delete
Active L
-ENT ESCActive H
Page 37 of 48
RBmag - programming - system setup
10.4.4.3.5 - Freq Enable
Enable (Yes) or disable (No) the open collector digital output to terminals F+ F-.
Default: No (disable digital output)
Range: No (disable digital output); Yes (enable gigital output).
Press the
With
Freq Enable
No
key: the display will be as shown here next.
or
Press
No
select the parameter setting.
Freq Enable
to confirm, the display will be as shown here next.
key to exit and confirm the selection; press the
Press the
the selection.
key to exit and delete
Language
Signal
Pulse Output
RS485 Output
key to enter the sub menu “RS485 Output” .
10.4.4.4.1 - RS Protocol
Sets the RS485 output communication protocol.
Default: MOD-BUS RTU
Range: MOD-BUS RTU ÷ MOD-BUS ASC
Press the
With
RS Protocol
Baud Rate
Data Bit
Parity
RS485 Protocol.
key: the display will be as shown here next.
or
No
-ENT ESCYes
10.4.4.4 - RS485 Output
Press
Liter / pulse
PulseWidth (ms)
Pulse Level
Freq. Enable
MODBUS-RTU
select the parameter setting.
MODBUS-ASC
Press
to confirm, the display will be as shown here next.
key to exit and confirm the selection; press the
Press the
the selection.
RS485 Protocol.
key to exit and delete
RS Protocol
Baud Rate
Data Bit
Parity
10.4.4.4.2 - Baudrate
Sets the RS485 output Baud Rate.
Default: 9600
Range: 1200 - 2400 - 4800 - 9600
Press the
With
Baud Rate
key: the display will be as shown here next.
or
MODBUS-RTU
-ENT ESCMODBUS-ASC
9600
select the parameter setting.
9600
Press
to confirm, the display will be as shown here next.
key to exit and confirm the selection; press the
Press
the selection.
Page 38 of 48
Baud Rate
key to exit and delete
9600
-ENT ESC9600
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RBmag - programming - system setup
10.4.4.4.3 - Data Bit
Sets the RS485 output Data Bit.
Default 8
Range: 8 - 7
Press
With
RS Protocol
Baud Rate
Data Bit
Parity
key: the display will be as shown here next.
or
Data Bit
select the parameter setting.
8
7
Press
to confirm, the display will be as shown here next.
Press
key to exit and confirm the selection; press the
the selection.
key to exit and delete
Data Bit
8
-ENT ESC7
10.4.4.4.4 - Parity
Sets the RS485 output Parity.
Default: NONE
Range: EVEN; ODD; NONE
Press the
With
RS Protocol
Baud Rate
Data Bit
Parity
key: the display will be as shown here next.
or
Parity
EVEN
select the parameter setting.
NONE
Press
to confirm, the display will be as shown here next.
Press
key to exit and confirm the selection; press the
the selection.
Parity
key to exit and delete
EVEN
-ENT ESCNONE
10.4.4.4.5 - Stop Bit
Sets the RS485 output Stop Bit.
Default: 1
Range: 1 - 2
key: the display will be as shown here next.
Press the
With
Baud Rate
Data Bit
Parity
Stop Bit
or
Stop Bit
select the parameter setting.
1
2
Press
to confirm, the display will be as shown here next.
Press
key to exit and confirm the selection; press the
the selection.
key to exit and delete
Stop Bit
1
-ENT ESC2
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Page 39 of 48
RBmag - programming - system setup
10.4.4.4.6 - Dev Address
Set the unity UID in RS485 network
Default: 001
Range: 001÷999
key: the display will be as shown here next.
Press the
With
Data Bit
Parity
Stop Bit
Dev Address
or
change the digit, with
Dev Address
moves the cursor.
001
002
to confirm, the display will be as shown here next.
Press
Press
key to exit and confirm the selection; press the
the selection.
key to exit and delete
Dev Address
001
-ENT ESC002
10.4.4.5 - Total Admin
Press the
Signal
Pulse Output
RS485 Output
Total Admin
key to enter the sub menu “Total Admin”.
10.4.4.5.1 - Clear Total
Reset totalizer
Default: NO
Range: NO - YES
Press
With
Clear Total
FWD Preset (m3)
REV Preset (m3)
Clear Total
key: the display will be as shown here next.
or
No
select the parameter setting.
Yes
Clear Total
to confirm, the display will be as shown here next.
Press
Press
key to exit and confirm the selection; press the
the selection.
key to exit and delete
10.4.4.5.2 - FWD Preset (m3)
Predetermines the positive totalizer value
Default: 0000000000
Range: 1÷9999999999
Press the
With
Press
Page 40 of 48
key: the display will be as shown here next.
or
change the digit, with
to confirm, then press
moves the cursor.
key to exit and confirm the selection
No
-ENT ESCYes
Clear Total
FWD Preset (m3)
REV Preset (m3)
FWD Preset (m3)
000.000000
Max: -------------------------------Min: --------------------------------
123.000000
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RBmag - programming - system setup
10.4.4.5.3 - REV Preset (m3)
Predetermines the negative totalizer value
Default: 0000000000
Range: 1÷9999999999
key: the display will be as shown here next.
Press the
With
Press
Clear Total
FWD Preset (m3)
REV Preset (m3)
or
change the digit, with
to confirm, then press
REV Preset (m3)
000.000000
moves the cursor.
key to exit and confirm the selection
10.4.4.6 - Load Setting
Load factory settings.
Default: NO Range: YES - NO
Press
With
123.000000
Pulse Output
RS485 Output
Total Admin
Load Settings
key: the display will be as shown here next.
or
Max: -------------------------------Min: --------------------------------
Load Settings
select the parameter setting.
No
No
Press
to confirm, the display will be as shown here next.
key to exit and confirm the selection; press the
Press the
the selection.
Load Settings
key to exit and delete
No
-ENT ESCYes
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Page 41 of 48
RBmag - programming - calibration
10.4.5 CALIBRATION
CALIBRATION
No / Yes
Zero Trim
Tube Trim
Empty Trim
No / Yes
Full Trim
No / Yes
Tube Region%
00.0
1.000000
K Character
10.4.6 SYSTEM CALIBRATION (CALIBRATION)
Press
from run mode, then press
or
enter. Press
to select “Calibration” and press
to select the desired function and press
button to
key to access
10.4.6.1 - Zero Trim
Zero flow measurement calibrate. The sensor must be full and the flow stopped.
Default: NO
Range: YES - NO
Press
With
key: the display will be as shown here next.
or
Basic
System
Calibration
Test
Zero Trim
Tube Trim
K Character
Zero Trim
select the parameter setting.
No
Yes
Press
to confirm, the display will be as shown here next.
key to exit and confirm the selection; press the
Press the
the selection.
key to exit and delete
Zero Trim
No
-ENT ESCYes
10.4.6.2 - Tube Trim
Push
Zero Trim
Tube Trim
K Character
to enter in “Tube Trim” .
10.4.6.2.1 - Empty Trim
ATTENTION: pipe must be empty before continue.
Performs a empty pipe recognition self calibration.
Default: NO
Empty Trim
Full Trim
Tube Region %
Range: NO - YES
Press
With
Empty Trim
key: the display will be as shown here next.
or
No
select the parameter setting.
No
Press
key to exit and confirm the selection; press the
Press the
the selection.
Page 42 of 48
Empty Trim
to confirm, the display will be as shown here next.
key to exit and delete
No
-ENT ESCYes
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RBmag - programming - calibration
10.4.6.2.2 - Full Trim
ATTENTION: pipe must be full before continue
Performs a full pipe recognition self calibration.
Default: NO Range: NO - YES
Press
With
Empty Trim
Full Trim
Tube Region %
key: the display will be as shown here next.
or
Full Trim
No
select the parameter setting.
No
to confirm, the display will be as shown here next.
Press
key to exit and confirm the selection; press the
Press the
the selection.
key to exit and delete
Full Trim
No
-ENT ESCYes
10.4.6.2.3 - Tube Region %
Sets the system sensitivity level to recognize the air presence in the sensor: higher the
value, greater the sensitivity.
Default: 40.0; Range: 0.0÷97.9
key: the display will be as shown here next.
Press
With
or
Empty Trim
Full Trim
Tube Region %
Tube Region %
select the parameter setting.
40.0
Max:
Min:
99.9
0.0
40.0
to confirm, the display will be as shown here next.
Press
Press the
key to exit and confirm the selection; press the
the selection.
Tube Region %
key to exit and delete
40.0
-ENT ESC80.0
10.4.6.3 - K Character
Press
to enter the function. “K Character “is the measure correction coefficient.
Default: 1. Range: 0.97÷1.03
Press
With
key: the display will be as shown here next.
or
Zero Trim
Tube Trim
K Character
K Character
1.000000
select the parameter setting.
Max:
Min:
000
Press
to confirm, the display will be as shown here next.
Press the
key to exit and confirm the selection; press the
the selection.
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key to exit and delete
1.0300000
0.9700000
1.000000
K Character
1.000000
-ENT ESC000
1.025000
Page 43 of 48
RBmag - programming - test
10.4.7 TEST
1.000
1000.0
Pulse Test
TEST
10.4.8 OUTPUT SIGNAL TEST (TEST)
Press
from run mode, then press
Press
or
to select “Test” and press
to select the desired function and press
button to enter.
key to access.
Basic
System
Calibration
Test
10.4.8.1 - Pulse Test
“Pulse Test” force the frequency signal output to the value set for the test.
Example: Setting the testing value at 2000Hz, the actual output signal value
is forced to 2000Hz. When exiting the TEST function, the frequency output signal returns
to be a Qmax set function
Default: 1000
Range: 1.0÷5000.0
Press
With
Page 44 of 48
select the parameter setting. Press
Pulse Test
1000.0
key: the display will be as shown here next.
or
Pulse Test
to exit.
Max:
Min:
5000.0
1.0
1000.0
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RBmag - troubleshooting
11-TROUBLESHOOTING
Problems in the magnetic flowmeter system are usually indicated by incorrect output readings from the system, error
messages, or failed tests. Consider all sources when identifying a problem in your system..
Symptom
Potential Cause
No power to transmitter
Pulse output
at zero,
regardless of flow
Wrong wiring
Reverse flow
Electronics failure
Transmitter, control system, or other
receiving device not configured
properly
Electrode Coating
Reading
doesn’t appear
to be within
rated accuracy
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Air in line
Flow rate is below 1 ft/s (specification
issue)
Auto zero was not performed when the
flowtube is full,or flowrate is zero
Sensor pipe failure
Sensor pipe failure–Shorted or open coil
Transmitter failure
Corrective Action
Check battery and connection to the
converter
Check pulse output wiring at digital
output terminals. Refer to wiring diagram for pulse output
Enable Reverse Flow function
Replace the electronics boards
Check all configuration variables for
the transmitter,flowtube, communicator,
and/or control system.,Perform a loop
test to check the integrity of the circuit
Downsize flowtube to increase flowrate.
Periodically clean flowtube
Move the flowtube to another location in
the process line to ensure that it is full
under all conditions
See accuracy specification for specific
transmitter and flowtube
Perform the auto zero function
Perform Sensor pipe tests electrode
Perform Sensor pipe tests coil
Replace the electronics boards
Page 45 of 48
RBmag - troubleshooting
In some circumstances, process conditions themselves can cause the meter output to be unstable. The basic
procedure for addressing a noisy process situation is outlined below. Complete them in order. When the output attains
the desired stability, no further steps are required:
1.
2.
Increase the damping.
Activating signal processing.
If the basic steps for troubleshooting are not sufficient contact our technical support.
Symptom
Potential Cause
Chemical additives upstream of
magnetic flowmeter
Noisy Process
Sludge flows–Mining/Coal/Sand/
Slurries (other slurries with hard
particles)
Styrofoam or other insulating particles
in process
Electrode coating
Air in line
Electrode incompatibility
Improper grounding
Meter output is
unstable
High local magnetic or electric fields
Control loop improperly tuned
Sticky valve (look for periodic
oscillation of meter output)
Sensor pipe failure
Page 46 of 48
Corrective Action
Move injection point downstream of
magnetic flowmeter, or move magnetic
flowmeter
Decrease flow rate below 10 ft/s
Consult factory
Downsize flowtube to increase flow rate.
Periodically clean Sensor pipe
Move the Sensor pipe to another location in the process line to ensure that it
is full under all conditions
Check Magnetic Flowmeter Material
Selection Guide for chemical compatibility with electrode material
Check ground wiring. See wiring and
grounding procedures
Move magnetic flowmeter (20–25
ft. away is usually acceptable)
Check control loop tuning
Correct valve sticking
Perform Sensor pipe Tests
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RBmag
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Page 47 of 48
Documentation subject to technical change with no prior warning
12-FACTORY TEST AND QUALITY CERTIFICATE
In conformity to the company and check procedures I certify that the equipment:
RBMAG .........................................................................................
serial n°: ...........................................................................
is conform to the technical requirements on Technical Data and it is made in conformity to the procedure
Quality Control Manager: ..........................................................
SGM-LEKTRA S.r.l.
Via Papa Giovanni XXIII, 49
20090 Rodano (MI) - ITALY
tel: ++39 02 95328257
fax: ++39 02 95328321
e-mail: [email protected]
web: sgm-lektra.com
Production and check date: .................................................
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