Nitto Flowtech MF710 User manual

ISO9001-2000
NITTO INSTRUMENTS CO.,LTD
TM
KF700 Series
Electromagnetic Flowmeter
OPERATION INSTRUMENTS
MF710
MF730

CATALOGS OF SENSORS
1. Operation principle
2. Major feature and application
3. Structure
4. Appearance and install size
5. Flow Specifications
6. Installation
7. Installation site of sensor
8. Connecting cable
9. Grounding
10. The preparation of pre-operational
11. Maintenance and common trouble shooting
12. Complete sets of products and Open Box
13. Quality Assurance
14. Transport and storage
15. Order Information
16. Associated instruments part number and type
17. The Corrosion resistance of Common electrode materials
18. Performance and application of Common lining materials
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CATALOGS OF TRANSIMITTER
System Description
Ⅰ.Instrument installation
1、Working conditions
2、Point for attention
Ⅱ.Power line connecting
1、Instrument Power supply
2、Instrument power connecting
3、Output Signal
Ⅲ.Instrument started
1、The display of Instrument start running
2、User interface of menu
3、Setup of power fuse
Ⅳ.Instrument operation
1. Panel structure menu and key define
2. Function of manual structure and Description
3. Menu item
4. Commonly used to guide the functional operation for Transimitter
1)Zero Correction
2)Unit of Flow
3Instantaneous flow Resolution
4)Unit of Total
5)Cumulative total flow resolution
6)Damping time
7)Max flow
8.)Low cutoff
9.)Frequency upper limit HZ
10.) Liter/pulse
11.) Cumulate Clear
Ⅴ.Technical Data
Ⅵ.Error message
Ⅶ.Regular fault treatment
1、Not Flow signal show on LCD display
2、Zero point Instability
3、
Instrument show data inconsistent with the actual flow
ⅧType selection.
ⅧI. Transport, storage
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1. Operation Principle
<>The operation of a magnetic flowmeter or mag meter is based upon Faraday's Law, which states
that the voltage induced across any conductor as it moves at right angles through a magnetic field is
proportional to the velocity of that conductor.
Faraday's Formula:
E is proportional to V x B x D where:
E = The voltage generated in a conductor
V = The velocity of the conductor
B = The magnetic field strength
D = The length of the conductor
To apply this principle to flow measurement with a magnetic flowmeter, it is necessary first to state
that the fluid being measured must be electrically conductive for the Faraday principle to apply. As
applied to the design of magnetic flowmeters, Faraday's Law indicates that signal voltage (E) is
dependent on the average liquid velocity (V) the magnetic field strength (B) and the length of the
conductor (D) (which in this instance is the distance between the electrodes).In the case of
wafer-style magnetic flowmeters, a magnetic field is established throughout the entire cross-section
of the flow tube (Figure 1). If this magnetic field is considered as the measuring element of the
magnetic flowmeter, it can be seen that the measuring element is exposed to the hydraulic
conditions throughout the entire cross-section of the flowmeter. With insertion-style flowmeters, the
magnetic field radiates outward from the inserted probe (Figure 2).
2. Main Features and Applications
Electromagnetic flowmeter consists of two parts of the sensor and transmitter. KF700-type
electromagnetic flowmeter for measuring a variety of acid, alkali, salt solution, paper pulp, slurry and
other conductive liquid or liquid-solid two-phase medium volume flow. In the chemical, alloy, water
supply and drainage, sewage treatment, food, sugar, paper making, environmental protection and
other departments to be widely application.
functional diagram
01
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02
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3.Structure:
Following characteristics of sensor:
(1) The whole welded structure,good sealing performance;
(2) Structure is simple and reliable,no moving parts inside;virtually no pressure loss
(3) low-frequency square wave excitation,anti-jamming performance,zero stability;
(4) The instrument measured medium has nothing to do with pressure, viscosity, temperature, density
and other physical parameters of the impact of changes
(5) The instrument reflects the sensitivity; the output signal has a linear relationship with flow. Width of
measurement;
(6) As measured medium only measuring tube lining and electrode contact, easy to satisfy anti-corrosion,
anti-wear requirements;
(7) Power consumption is small, complete set of instrument power consumption <10VA, has nothing to
do with the size of the sensor aperture;
(8) To install, usage, and easy maintenance.
Structure diagram
1.Junction box; 2.flange;
3.insulated liner; 4.electrode; 5.measuring tube;
6.excitation coil; 7.shell
Sensor structure shown in Figure 2, the following components:
(1) Measuring tube: Measuring tube flow measured medium, measuring tube by the non-magnetic
stainless steel and welded flange, lined with insulation lining.
(2) Lining: the inside of the measuring tube and the flange sealing surface of a complete corrosion
resistant electrical insulation material, to prevent the traffic signal is short-circuit.
(3) Excitation system: measurement of the outer tube from top to bottom with a group of coils to
generate magnetic fields of work.
(4) Electrode: with the magnetic field lines perpendicular to the direction of the measurement pipe wall
with a pair of electrodes to detect flow signals, the electrode materials can be corrosion testing medium
selected.
(5) Shell: protecting the instrument and steal up it.
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TM SENSORS

DN
(mm)
LDKn-øA
(kg) (kg)
mm
10
15
20
25
32
40
50
65
80
100
125
150
200
250
300
350
400
450
500
600
700
800
900
1000
1200
1400
6
6
6
7
9
10
12
17
17
22
24
35
45
84
102
123
147
212
229
252
352
462
558
690
785
1258
4
4
4
5
7
8
10
15
15
20
22
33
43
82
100
121
145
207
210
250
350
460
550
680
780
1250
150
150
150
150
150
150
200
200
200
250
250
300
350
400
500
500
600
600
600
600
700
800
900
1000
1200
1400
90
95
105
115
140
150
165
185
200
220
250
285
340
395
445
505
565
615
670
780
895
1015
1115
1235
1405
1630
60
65
75
85
100
110
125
145
160
180
210
240
295
350
400
460
515
565
620
725
840
950
1050
1120
1340
1560
4-ø14
4-ø14
4-ø14
4-ø14
4-ø18
4-ø18
4-ø18
8-ø18
8-ø18
8-ø18
8-ø18
8-ø22
8-ø22
12-ø22
12-ø22
16-ø22
16-ø26
20-ø26
20-ø26
20-ø30
24-ø30
24-ø33
28-ø33
28-ø36
32-ø33
36-ø36
4.0
1.6
1.0
0.6
Max Working
pressure
(MPa)
Compact
type
Remote
type
Ｌ
Ｈ
Ｄ
Ｋ
n-ØA
１１０
Ｌ
H 141
171(132)
D
K
n-ØA
112 (95)
181.5 (132)
110
4.Appearance and install size
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DN Common choice of full scale flow range（m3/h）
10
15
20
25
32
40
50
65
80
100
125
150
200
250
300
350
400
450
500
600
700
800
900
1000
1200
1400
0.16, 0.2, 0.25, 0.3, 0.4,0.5,0.6,0.8,1.0,1.2,1.6,2.0,2.5
0.4,0.5,0.6,0.8,1.0,1.2,1.6,2.0,2.5,3.0,4.0,5.0,6.0
0.6,0.8,1.0,1.2,1.6,2.0,2.5,3.0,4.0,5.0,6.0,8.0,10.0,12.0
1.0,1.2,1.6,2.0,2.5,3.0,4.0,5.0,6.0,8.0,10.0,12.0,14.0,16.0
1.6,2.0,2.5,3.0,4.0,5.0,6.0,8.0,10.0,12.16,20,25
2.5, 3.0, 4.0, 5.0, 6.0, 8.0,10.0,12,16,20,25,30,40
4.0, 5.0, 6.0, 8.0, 10, 12,16,20,25,30,40,50,60,70
6.0,8.0,10,12,16,20,25,30,40,50,60,80,100,120
10,12,16,20,25,30,40,50,60,80,100,120,160
16,20,25,30,40,50,60,80,100,120,160,200,250
25,30,40,50,60,80,100,120,160,200,250,300,400
40,50,60,80,100,120,160,200,250,300,400,500,600
60,80,100,120,160,200,250,300,400,500,600,800,1000
100,120,160,200,250,300,400,500,600,800,1000,1200,1600
160,200,250,300,400,500,600,800,1000,1200,1600,2000,2500
200,250,300,400,500,600,800,1000,1200,1600,2000,2500,3000
250,300,400,500,600,800,1000,1200,1600,2000,2500,3000,4000
300,400,500,600,800,1000,1200,1600,2000,2500,3000,4000,5000
400,500,600,800,1000,1200,1600,2000,2500,3000,4000,5000,6000
600,800,1000,1200,1600,2000,2500,3000,4000,5000,6000,10000
800,1000,1200,1600,2000,2500,3000,4000,5000,6000,10000,12000
1000,1200,1600,2000,2500,3000,4000,5000,6000,10000,12000,16000
1200,1600,2000,2500,3000,4000,5000,6000,8000,10000,12000,16000
1600,2000,2500,3000,4000,5000,6000,10000,12000,16000,20000
2500,3000,4000,5000,6000,8000,10000,12000,16000,20000,25000,30000
3000,4000,5000,6000,8000,10000,12000,16000,20000,25000,30000,40000
5. Specifications
1). Max flow range for EMF (Choice of reference map) :
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6. Installation
1.) Installation ways
3 .) The choice of installation location
2.) The choice of installation environment
2.) Flowmeter curve graph of the relationship between Diameter, flow rate and flow
Electromagnetic flow sensor if not installed properly, will significantly affect measurement accuracy,
even lead instrument not working properly, so Before installation instructions carefully read the
relevant sections.
Sensor installation method for the flange connection. Criteria and process pipe welding flange screw
holes in the inter-position, bolt can be passed smoothly to facilitate the integration between the sensor
and process piping.
Installation must ensure that sensors Center and the process pipe center line, and then a good
grounding line, otherwise it would cause measurement error.
According to the work of instrument characteristics and technical characteristics, the choice of
instrument installation environment should pay attention to:
(1) The instrument should be installed at the ventilation to dry, avoid installing at the place easy
accumulation water.
(2) The instrument should try to avoid just sun shine and rain. Open-air installation, should keep out
rain in places;
(3) Installation of places as much as possible to avoid strong vibration;
(4) as far as possible to avoid a strong electromagnetic field equipment; such as large motors, large
transformers.
(5) Select the ease of maintenance, activities, convenient place.
Installed on the sensor in the pipeline, we should note the following points
(1) sign the direction of the flow sensors and pipeline flows in the same direction within the medium;
(2) The need to ensure that sensor tube is full filled with the measured medium;
(3) The sensors should be five times the upstream straight pipe section D above, the sensor should
be three times the downstream straight pipe section D above (available from the center of sensor ,
D to measure the pipe diameter);
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图3
picture 4 Install reducing pipe or gradually expanding tub to effect pressure loss
(d/D)
4. ) When the pipe diameter is inconsistent with the sensor, the sensor is installed at both ends tapered or
gradually expanding tube, and then with the pipe connection. Gradually expanding, tapered conical tube
should be no more than 15 degrees. When using 15 cone angle gradually expanding, tapered tube, the
pressure loss resulting from the curve in Figure 4 :
d.Sensor internal diameter; D.diameter, V.flow rate of
sensor(m/s)
5) sensor installation should be taken in the horizontal electrode as horizontal position, once the media containing
bubbles or sediment, the bubbles will not be adsorbed on the electrode in the vicinity, resulting in conversion of the
input terminal open circuit; sediment will not cover the electrode, caused by zero drift;
(6) liquid-solid two-phase medium, the vertical installation of a more favorable, a measured medium can prevent
phase separation, two lining wear sensor allows more uniform. Vertical installation, the medium flow direction
should be bottom-up, so as to ensure that the sensor tube is always filled with medium.
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PRESSURE LOSES (Pa)
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7. Installation position of sensor
Pipe to the highest point (Gathered bubble
in tube to make error measurement)
Preferred position
(Sensor cannot be installed at highest level of pipeline)
Easily lead to non-full
pipes (wrong measurement way)
Pls put flow meter into low position,
exposure for Injection or discharge
Pls install exhaust valve if
drop pipe longer than 5M.
5m
Exhaust valve
picture 5 recommend installation
In order to enable reliable flow meter, Pls note the following installation requirements：
1. As far as possible to avoid ferromagnetic objects and equipment with strong magnetic fields
(big electric machine, big transformer) is protecting of the magnetic field sensor.
2.Flow meter should be enough space around for easy installation and Maintenance.
In longer pipe system, pls install control
valve and Cut-off valve on the flow meter
Downstream side
Pump: Prohibited to install
flowmeter at suction side(Vacuum)
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8. Connecting cable
9. Grounding
BOM 1 -Connecting cable
Items
Signal lines Accessory kit
Accessory kit
provided by users
8 or 15m
8 or 15m
1
2
3
PVC sheathed 2 core shielded cable 2X16/015 (SBWP)
PVC sheathed 2 core shielded cable 2X80/015 RWP
Ship sealed with rubber insulated cable 2X0.5
Two core plastic cable 2X1.0mm2（YHZ）
Marine soft ethylene-propylene rubber
insulated cable 2X1.0(CEFR-C)
General Color plastic
double-stranded copper wire
Excitation wire
Output signal lines
Name specifications Qua. Remarks
The flow sensor generated signal by is very small, when in full-scale only a few mV, so the
sensor should be well grounded, in a good grounding line access must be in accordance with
the ninth Page shown
1）From the working principle of electromagnetic flowmeter and flow sensor signals to the circuit analysis,
sensors and ground-side converter must be consistent with the measured medium equipotential.
2）Grounding to the earth is zero potential to reduce outside interference. Under normal circumstances,
industrial pipes are metal tubes and grounded in itself, which easily meet the requirements, but in a larger
external electromagnetic field interference, the electromagnetic flowmeter grounding devices should be set up
for other way, with grounding line is greater than the total cross-section 6mm 'multi-strand copper wire, the
grounding line of sensors cannot be received in the motor or other equipment to the public online in order to
avoid the effects of leakage current. Grounding resistance should be less than 10.
3）Sensor is installed in the plastic pipe lines or in the pipe insulation, the sensor should be installed at both
ends of the grounding ring or grounding flange, or with a ground electrode a short tube, shown in figure 7.
4）Sensor be installed on the Catholic protection of pipelines, it must be installed two ends of grounding ring
(or grounding flange) on the sensors.Figure 8
Grounding requirements of the electromagnetic flowmeter has two aspects:
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picture 6
picture 7
picture 8
10. The preparation of pre-operational
Sensors installed in the metal pipe of grounding diagram
1, grounding line (outside interference device larger installation)
2, Flowmeter grounding line (with factory)
Plastic pipe or pipe insulation lining grounding diagram
1, grounding line (outside interference device larger installation)
2, Flowmeter grounding line (with factory)
3, grounding or earthing ring flange
Pipeline cathodic protection installed for the grounding diagram
1, grounding device line (outside interference larger installation)
2, flowmeter grounding line (with the factory);
3, grounding or earthing ring flange must be consistent with the flange
connecting pipe insulation
4, bolts (installed with the flange should be mutual insulation)
5, connecting wire, copper cross-sectional area of 16mm. So that piping
and cathodic protection isolate between the sensor.
Important Note: the whole instrumentation (including sensors and Transmitter) to run a rigorous adjustment and
flow calibration in the factory, one by one after passing the test
In Plants. To the end user, So, it can be put into operation without any adjustments. Therefore, the initial
operation of the problems encountered, should be in accordance with the specifications Reference points one
by one inspection, a careful analysis, troubleshooting. Avoid Blindly tamper to make a good set of adjustments
to the original instrument to confuse or even damage.
Instrument can be put into operation the following steps:
1) First open upstream and downstream the valve with Sensor, so that sensors measuring tube filled with test
medium;
2. ) Power for one minute, Transmitter showed an immediate increase to a certain numerical value, pls wiring is
correct or not, when the flow direction is wrong,pls
Check the direction of the sensor installation is correct.
3) zero Trim , instrument through the media 15 minutes after the first sensor tightly closed valve downstream
side, and then shut down the upstream side of the valve, so that tube
Stop the flow of fluid and no leakage, the flow shows zero. Zero if too high or too low, Pls do Zero Trim on the
Transmitter.
Specific operations see Transmitter Manual p. 27
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11. Common failures and how to deal with
12. Open box and product sets
Check packing box, and check the sensor model, the contract specifications in line with
the order randomized complete documents
KF700 series EMF manual instructions
1 pcs
1 pcs
1 pcs
1 pcs
certification
packing list
CD
Regular failure and obviate method
Troubles
Use a multimeter to check signal good or not
Use a multimeter to check sensor loop is good or not
According transimitter manual inspection,
troubleshooting
Grounding bad or electrode dirty, Zero
Trim after inspections
Adjusted in accordance with the parameters
set, and then zero trim
Inspection process to improve the
installation method
Clear scaling
Carried out using standard flow meter to compare
2.Signal circuit break
2.medium in tube not full
2.Transmitter configure be modified
3.Imperfect earth
3.Medium in tube not full
4.Electrode or wall scaling
3.Open-loop excitation
4.Transmitter failure
Possible Causes Check the troubleshooting
Failure to deal with reference to Table
Check signal line to ground resistance to use a
multimeter measuring electrode-to-ground resistance,
generally from thousands of OM to some 10k om
Electromagnetic flow sensors generally do not require regular maintenance, but medium of measured is
easily adhesion in the electrode or dielectric tube wall measurements or scaling of the occasion, the
need for regular cleaning pipe wall of measurement and electrodes, attention do not damage liner,
electrode.
Liquid flow
through the
meter ithout
instructions
Changes in
the flow
apparatus
showed that
full-scale on
transmitter
Instrumented
inconsistent
with the actual
flow
1.Moisture sensor or signal-to-ground
short-circuit resulting in damage
1.A signal-to-ground short-circuit or open
circuit
1.Change the zero point to make
measurement error
5.error in actual determination to check with
Flowmeter
Use a multimeter to check insulator of signal
line whether good or not
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Use a multimeter to check signal lines open or
not and to improve the installation method
Check the signal shielding layer and then place
resistors, re-installation of grounding devices
10
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13. Quality Assurance
14. Transport and storage
15. Order Information
16. Instrument serial number and model matching
(1) sensor ID
(2) sensor coefficient
(3) Converter Model
(4)other
Instruments and accessories from the factory from the date of 12 months, when a user products in
full compliance with the technical requirements and installation instructions provided in the transport,
installation and use of the provisions of instruments and accessories have found products that do
not meet technical standards, the instrument may be returned factory, this factory is responsible for
free repair.
Instruments to prevent damage in transit, on arrival at the scene after the installation, please keep
the state at the time of factory shipment, storage location of the indoor conditions on the follow:
a) ventilation, rain, moisture, indoor air should not contain the harmful effects of corrosive
substances;
b) a small mechanical vibrations and to avoid the impact;
c) temperature range in -20°C~ +60°C
d) do not dry 90% humidity
Orders must be measured in accordance with specific targets and measuring conditions of access
to the Company on the selection of technical information and ordering the right choice. E.
According to the actual situation, the order should be determined:
1) the scope of the model and flow measurement. Order to determine, based on sensor diameter
models. Full-scale instrumentation (ie, range) should not be less than the actual measured flow of
the largest pipeline, and the normal flow of more than 50% of the selected range in order to obtain
high precision.
2) pressure meter, temperature must meet the test medium pressure and temperature.
3) come into contact with the measured medium liner, electrode corrosion media should be
capability measured. Therefore, users must be ordered according to their own experience of
anti-corrosion,
Refer to the company's existing varieties of lining and electrode materials (see 12th page), the
correct selection of materials.
4) the need for installation with matching flanges, please specify when ordering.
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17. Common electrode materials corrosion performance
18. Common properties of lining materials and application.
Lining material
PTFE -80～250°C
0～80°C
0～60°C
Chloroprene
rubber
Polyurethane
Rubber
The main performanceThe main performance Application
temperature
HastelloyB
HastelloyC
Ti
Acid-resistant
steel
1Cr18Ni9Ti
Corrosion performance
To nitric acid, phosphoric acid and other cold inorganic acid,a variety of salt and alkali
solutions, organic acids, water-resistant for a good corrosion resistance. Formic acid
of boiling, Oxalic acid , industrial acid-ming, as well as sodium carbonate and
chlorine, bromine, iodine, such as poor chemical stability of medium, not corrosion.
Stainless steel
containing
molybdenum
0Cr18Ni12Mo2Ti
0Cr18Ni12Mo3Ti
In the reductive medium (such as hydrochloric acid) compare with 1Crl8N 9Ti have
stronger corrosion resistance.Less than 50% of the nitric acid, at room temperature
less than 50% of sulfuric acid and 20% of the hydrochloric acid, alkali solution,
boiling phosphoric acid, formic acid, under pressure from a certain sub-sulfuric
acid, water, acetic acid and other media have a strong corrosion resistance , can
be widely used in petrochemical, urea, vinylon industry.Intolerant of hydrofluoric
acid, chlorine, bromine, iodine and other medium.
Below Boiling point of all of the following concentrations of hydrochloric acid with
good corrosion resistance, is also resistant to sulfuric acid, phosphoric acid,
hydrofluoric acid, organic acids and other non-oxidizing acids, alkalis, salt solution
of non-oxidative corrosion.
Oxidation of acid-resistant, such as nitric acid, mixed acid or chromic acid and
sulfuric acid corrosion of mixed medium, but also resistant to oxidation of the salts
such as Fe ", Cu +2 corrosion or other oxidants. Such as higher than normal
temperature of the hypochlorite solution. Seawater corrosion resistance is very
good
Medium resistance of oxygen and nitric acid, chloride, hypochlorite and chlorine
the corrosion resistance of a good medium.
Material
It is the most stable plastic material.
Ability to boiling Of hydrochloric acid,
sulfuric acid, nitric acid and aqua regia,
but also strong capability Alkali, organic
agent. Molten alkali metals and
intolerance ，Its ammonia solution,
abrasion resistance and poor bonding
Have good flexibility, high tensile
strength, abrasion resistance, good
impact resistance. Acid, alkali, salt and
other corrosive media. Intolerance
oxidative corrosion media
Has an excellent wear resistance, which
is equivalent to ten times that of natural
rubber.
Has an excellent wear
resistance, which is
equivalent to the pressure
of natural rubber pipe
measurement acids,
alkalis,Like salt, strong
corrosive medium or
medium health category.
A non-oxidizing
acids, alkalis, salt
solution.
Oil drilling, slurry, mud,
Mortar serious occasions,
such as wear and tear
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Ⅰ. Installation
2.) Installation environment
System instructions
2）The working conditions:：
a) ambient temperature:-20°C～55°C
b) relative humidity: 5% -90%
c) power supply
AC Power Supply:85VAC～265VAC，50Hz
DC Power Supply:18VDC～36VDC
Rated Power:<10VA（include sensor）
1. Working condition
2. Installation Notes
Transmitter’s configuration in accordance with the contract requirements, run the data set in accordance with
contract requirements. Users can check the meter nameplate to confirm that the instrument provided by the
model and instrument operating parameters set. It can be put into use after connect power. In order to ensure
your system run on normal operation, make sure that the sensor measurement is full of medium channels
Our company electromagnetic flowmeter is dedicated to conductive fluid (conductivity ≥ 5μS/cm, water ≥
20μS / cm) the volume of flow measurement.
Flowmeter installation and usage should be in strict accordance with the specification, and to comply
with the relevant national standards, safety requirements and accident prevention requirements.
MF7200 electromagnetic flow converter directly connected with the electromagnetic flow sensor
compact into one body
It should avoid large temperature changes. If the meter installed by the thermal radiation Plateau,
please provide the thermal isolation or ventilation. Instrumentation installed in the switch box,
there should be appropriate measures of net and ventilation are examples such as the fan.
Compact structure flow meter should give full consideration to the transmitter working environment
temperature.
1.）The working conditions of the reference test：
a) operating temperature:20°C±2°C
b) relative humidity:45%～85%
c) the supply voltage:220VAC±2%
d) Power frequency:50Hz±5%
e) harmonic content:<5%
f) warm-up time:>15min
It should avoid in a strong corrosive atmospheric environment. Installation location should have
adequate ventilation. Protective properties of instruments should be maintained to prevent the
corrosive gases and moisture into the instrument cavity. It Should avoid direct sunlight, especially
the liquid crystal display part. Strong vibration should be avoided.
1. ) Environment temperature
3.) Installation methods
A compact body flowmeter transmitter and Sensor two parts is connected to the end before
out of factory, the user can be installed directly. Sub-constructer flowmeter for Transmitter and
sensors to be in two parts at field by the user through a dedicated cable (factory annex) to
connect. Part of the sensors installed on both glycosides, Transmitter are usually installed in
the indoor or meter box. The distance is shorter for better.
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Ⅱ.
Power line connecting
Operation principle and requirements：
This series of transmitter have the following power supply types.
1) AC Power supply range
85VAC-265VAC, 50Hz power ~ 10VA (including sensors)
2) DC power supply range
18VDC 36VDC; power ≤ 10W (including sensors)
2. Power line connecting
Operation steps:
Before connecting the power supply, please see the nameplate and part of the electrical terminals and the
types of instructions ,in order to avoid misoperation to make instrument error or damage
1. Instrument Power supply
Instrumentation and electrical installation work must be connected by a certain qualified staff to implement. Be
sure to operate before reading this operation manual carefully to avoid wrong operation caused by solid work
instrument error or damage. Converter must have a good grounding in order to protect their personal safety.
Use in hazardous area must be provided by columns according to special "EX" in the operating manual
instructions. Instrument should be in the electrical connection before power run.
1.The lid of Instrument just open in the wiring, once opening the lid of instrument will affect protection performance. It
should be back to the factory sealed lid state after the wiring finished.
2, In order to ensure the insulation of instrument performance, to prevent the instrument as a result of wet insulation
caused by poor rains ,in the outdoor wiring should be avoided.
3, with a threading instrument connectors, cable connectors must be approved by
threading into the instrument cavity (see circle). After the wiring , waterproof joints
should be tightened to ensure that moisture and corrosive gases do not enter
the electronic part.
4, Input and output lines recommend the use of the installation of conduit, conduit tube be recommended thick solid
brass or soft metal pipes Road. Conduit should be noted that the order to prevent flood water flowing into the conduit or
conduit into the internal instrumentation. Input power line and signal lines should be separated through their respective
special perforated cavity into the instrument, prohibited parallel and banding together.
5, The choice of input and output cables to reference the following description:
Excitation, a dedicated flow meter signal cable is provided by our company.
Power Line: owned by the user, customer can option YH Z-2xlmm2 two soft-core rubber insulated cable, cable length
should concern voltage drop.
Output line: owned by the user, customer can option RVVP2X16 / 0 15 PVC insulated sheathed wire shielding, cable
length will affect the load characteristics.
1, open the rear cover of the transmitter
2, a dedicated power supply input line threading through the hole (Waterproof connector) into the instrument cavity.
3, the grounding wire connected to the transmitter side of the ground.
4, AC (AC) power lines L and N lines were connected to the converter side of the L and N-side.
Direct current (DC) power supply to power + lines and - receiving line side converter, respectively, the + terminal
and - terminal.
5, water-proof connector threading screw instrumentation and to return to the status of the factory sealed.
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L
N 85 VAC-265VAC 50Hz
+ 24 VDC Power, positive terminal
- 24 VDC Power, negative terminal 18 VDC -36VDC
3. Output signal
Diagram of output signal terminal
Terminal Description
Diagram of output signal terminal
Terminal Description
Description：
Identifier Functional Description
220VAC Power, L terminal
220VAC Power, Nterminal
Power Ground terminal
Power range:
Power range:
Grounding resistance <= 10 Ω
Pay attention to the following questions on connect the power supply :
1, the power cable of inside the sensor will not wound.
2, the power input line should separated with other input and output lines , threading through the holes
into their own dedicated instrument cavity.
3, noted that the positive and negative polarity DC power supply, if the reverse then the instrument does
not work.
4, power supply should have a good grounding in order to protect the operator's personal safety.
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L N PE
AC220V或
DC24V
RS+ RS- PF+ PF- Io + Io - Ex-X Ex-Y Sin-A Sin-C Sin-B Sin-C
L N PE
AC220V或
DC24V
RS+ RS- PF+ PF- Io + Io - Ex-X Ex-Y Sin-A Sin-C Sin-B Sin-C

1 4-20mA +
4-20mA -
0~2KHz+
0~2KHz-
0~2KHz+
0~2KHz-
2
3
4
5 RS485date+
6 RS485date -
4-20mA +
1
2 4-20mA -
3
4
1.）Electric current output
2.）Pulse, frequency output
3.) Function of communication
4-20mA Output positive terminal
Function Instructions
Terminal description
Remarks
4-20mA Output negative terminal
Frequency/pulse output
positive terminal
Frequency/pulse output
negative terminal
RS485 Communication
positiveterminal
RS485 Communication
negativeterminal
1, Load resistance:750Q (with link)
2, Hart Communications external 24VDC
power supply Active Output Mode
The output amplitude of 24V load
current <=50mA
RS485 communication function (n just
for transmitter has this function
Receive
Instruments
The converter current output electrical isolation has been achieved. Output to take an active approach.
Current output mode 4-20mA, 20mA current output value from the corresponding traffic parameter item
"scale flow of value" is determined (reference to factory nameplate on the instrument measuring range a
value). The maximum current output load resistance of 750Q, the load resistance includes the cables
used to connect the resistance. Current output cable is recommended RWP2x16/015 PVC insulated
sheathed cable shield. 2.
Counter
The Transmitter frequency, pulse output has been achieved electrical isolation, the output for the active
mode (see above chart). Transmitter frequency, pulse output with transistor output mode. Maximum
pulse output frequency 5KHZ, the output pulse amplitude of 24V. Active mode the maximum load
current 50mA, passive mode the maximum load current 0.2A. As the frequency and pulse output
terminals are shared, it is not to choice two output modes. Users can set the parameter "frequency
output" to select the work. Frequency output upper limit corresponding to the measured flow value by
the parameter item "scale flow value" decision (reference instruments to measure the scope of a factory
nameplate values). Pulse output equivalent by the parameter 'pulse equivalent L / P "decision.
Transmitter communication with RS485, MODBUSASC, MODBUSRTU communications capabilities
(requires a user specified when ordering). Available through the "485 output communication protocol"
parameter is set to specify. Instrument Communication Interface specific technical note on "protocol."
Items Lable
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Ⅲ. Instrument started
1 .Working instrument showing
2 . Interface show
Before connect power, follow the manual of the first part of the note 1,2 and sensor part of the installation
manual to verify whether the system is properly installed and connections. End customer can directly run
instrument, the reason is including sensors and signal transmitter of two parts, all of the data have been based
on user requirements and technical specifications of the company's manufacturing process in the factory setting.
After complete correct electric connection, run power on instrument. Instrument transmitter first
implementation of the initialization; display the company logo (see below). Wait 3 seconds after the
instrument into the own measurement mode, immediately began to flow measurement and displays the
current flow measurement value or other self-assemblies off information. If there is no meter to power
after the show (display without backlight), then the power supply and connectivity in identifying ways to
meet the requirements, may view the instrument power supply fuse is intact (you can see the 8 common
faults and processing).
If there is no meter to power after the show (display without backlight), then the power supply and
connectivity in identifying ways to meet the requirements, may view the instrument power supply fuse is
intact (you can see the 8 common faults and processing).
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Flow direction Instantaneous delivery
Unit of instantaneous delivery
Total accumulated
Unit of total accumulated
Warn of instrument
Percentage of flow
8Lｓ
m
3
.
8888888.8
888 8
１００％
＋
Alarm Condition
Keyboard Lock-up Condition
Flow Calibration
Edition number of program
m
3
8888888.8
m
3
8888888.8
m
10.008
ＣＢＭ＿Ｅ８３０８Ｓ．Ｃ５ ｓ
Ｆｏｒｗａｒｄ ｔｏｔａｌｉｚｅｒ
Ｂａｃｋｗａｒｄ ｔｏｔａｌｉｚｅｒ
ｆｌｏｗ ｒａｔｅ
Alarm----
Excitation Over range
zero blank pipe
upper limit Lower limit
Alarm Interface
Flow Auxiliary Interface
----