EMIS MASS 260 User manual

www.emis-meter.com
EM-260.000.000.000.00 OM
12.11.2021
v1.0.9
CORIOLIS FLOW METER EMIS-
MASS 260
Operation manual
Direct mass flow
measurement
High accuracy
Digital processing of signals
No straight run required
Applicable for high viscous
liquids
EMIS
Russia, Chelyabinsk

EMIS-MASS 260
OPERATION MANUAL
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General information
This operation manual contains general technical parameters, directions for usage, transportation and
storage, and other information for accurate operation of EMIS-MASS 260 Coriolis mass flow meters (hereinafter
referred to as the flow meter or EM-260)
EMIS CJSC has the right to update the product and documents without prior notice if it does not affect
product performance. For any information about present Operation Manual or other EMIS equipment please
contact your local dealer or EMIS head office.
Any use of the present manual, partial or full, is prohibited without copyright holder permission.
Attention!
Carefully study this Manual before starting operation. Please make sure that you
have carefully read and learned the present manual before installation, operation or
maintenance of the equipment. The above is strictly required to provide safety
operation and equipment efficiency.
Contact your local dealer or our technical service: Company profile
tel/fax: [phone]
e-mail: [e-mail]
Attention!
Present Manual can be applied only for EMIS-MASS 260 flow meters. This
document is not applicable to other equipment of EMIS or other companies.

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OPERATION MANUAL
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Contents
1Description and operation ................................................................................................................................5
1.1 Application......................................................................................................................................................5
1.2 Structure and Operation Principle..................................................................................................................6
1.3 Order Sheet....................................................................................................................................................9
1.4 Technical Parameters..................................................................................................................................16
1.4.1 Brief description of technical parameters..............................................................................................16
1.4.2 Measuring ranges..................................................................................................................................17
1.4.3 Pressure configurations.........................................................................................................................21
1.4.4 Accuracy................................................................................................................................................22
1.4.5 Parameters of electrical power supply ..................................................................................................23
1.4.6 Output signals........................................................................................................................................23
1.4.7 Flow meter reliability parameters: .........................................................................................................25
1.5 Pressure loss ...............................................................................................................................................25
1.6 Explosion protection.....................................................................................................................................25
1.7 Marking ........................................................................................................................................................29
1.8 Scope of Supply...........................................................................................................................................30
2 Intended Use ......................................................................................................................................................34
2.1 Configuration selection ................................................................................................................................34
2.2 Safety requirements.....................................................................................................................................34
2.3 Mounting on the pipeline..............................................................................................................................35
2.3.1 Installation options.................................................................................................................................35
2.3.2 Pipeline direction...................................................................................................................................36
2.3.3 Preparation of pipeline ..........................................................................................................................37
2.3.4 Pipe body preparation and flow meter mounting...................................................................................39
2.3.5. Heat insulation......................................................................................................................................41
2.3.6 Preheating.............................................................................................................................................42
2.3.7 Rotation of electronic unit......................................................................................................................42
2.4 Power connection.........................................................................................................................................44
2.4.1 General directions .................................................................................................................................44
2.4.2 Explosion protection while mounting.....................................................................................................45
2.4.3 Connection recommendations...............................................................................................................47

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2.4.4 Ingress protection..................................................................................................................................47
2.4.5 Grounding..............................................................................................................................................48
2.5 Operation and maintenance.........................................................................................................................48
2.5.1 General directions .................................................................................................................................48
2.5.2 Flow meter start/stop.............................................................................................................................48
2.5.3 Zero point adjustment............................................................................................................................48
2.5.4 Flow meter cleaning ..............................................................................................................................48
3 Transportation, Storage and Recycling..............................................................................................................50
3.1 Transportation.............................................................................................................................................50
3.2 Storage.........................................................................................................................................................50
3.3 Recycling......................................................................................................................................................51
4 Calibration...........................................................................................................................................................52
5 List of possible failures .......................................................................................................................................53
5.1 List of possible failures (including critical)....................................................................................................53
5.2 Personell mistakes leading to failure, emergency or accidents...................................................................53
Personnel emergency response ........................................................................................................................53
5.4 КLimit state criteria .......................................................................................................................................53
Appendix A ............................................................................................................................................................54
Appendix B ............................................................................................................................................................68
Appendix C ............................................................................................................................................................69

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1 Description and operation
1.1 Application
The flow meter EMIS-MASS 260 is designed to measure the mass flow rate, weight, temperature,
density, volume flow, volume of liquids and gas.
The flow meter is used as a meter for gasoline, liquefied gas, kerosene, diesel fuel, oil, oil with water,
fuel oil, other liquids and corrosive media under operating pressure and working temperature at chemical,
petrochemical, oil, food, pharmaceutical and other industries and public utilities.
Flow meters are installed in automatic control, adjustment and operation systems and used at variable
industries, stationary plants and
ground-based mobile refueling and transfer facilities, commercial accounting systems.
Flow meters can be used for both standard and explosive environments. Ex-proof flow meters EMIS-
MASS 260-Ex are equipped with ex-proof enclosure under GOST IEC 60079-1-2013, intrinsically safe circuit of
"ib" protection level under GOST 31610.11-2014.
The flow meter EMIS-MASS 260 is an indicating device operating under excessive pressure, categories
1 and 2, in accordance with the requirements of TR TS 032/2013 “On safety of equipment operating under
excessive pressure”.
Attention!
The flow meter is not intended for operation at nuclear facilities.

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1.2 Structure and Operation Principle
Flow meter consists of the following assemblies (fig.1.1):
Electronic unit (1).
Sensor (primary transducer) (2).
a)
b)
Fig.1.1 - External view of flow meter
Electronic unit can be mounted integrally with the flow meter (integral version, fig.1.1 a) and separately
from the flow meter (remote version, fig.1.1 b).
The sensor is a measuring chamber with inlet and outlet pipes and flanges for pipeline connection. The
magnetic coil and the magnet induce vibrations on the two U-shaped parallel flow tubes. Electromagnetic coils
with magnets, called detectors, are installed on the flow tubes.
When a measured medium moves through a measuring chamber, a physical phenomenon appears,
known as the Coriolis effect (Figure 1.2). The progressive movement of the medium in the oscillating flow tube
leads to the occurrence of Coriolis acceleration, which, in turn, leads to the appearance of Coriolis force. This
force is directed against the motion of the tube imparted to it by the driver coil, i.e. when the tube moves up
during the half of its own cycle, the Coriolis force is directed downward for the fluid flowing inward. As the fluid
passes through the bend of the tube, the direction of the force changes to the opposite Having been forced
upward, the liquid flowing out of the sensor resists having its vertical motion decreased by pushing up on the
tube. This action causes the tube to twist. When the tube is moving downward during the second half of its
vibration cycle, it twists in the opposite direction.
1
2

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OPERATION MANUAL
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a)
b)
b)
Fig.1.2 - The forces affecting the tube during the vertical movement
Fig.1.2: a) flow meter without power supply; b) power supplied, the coil cause the vibration in the
measuring tubes; c) flow supply, generation of Coriolis effect.
Coriolis force and the amount of twist is directly proportional to the mass flow rate. The detectors
measure the phase shift when the opposite sides of the flow tubes move, and as a result, out of phase signals
are generated. Mass flow rate Q is proportional to time delay Δt .
    , kg/h
(1.1)
where K is a calibration coefficient g/s/µs
Δt - time delay between the signals from the coils, µs
The density of the medium being measured is determined by measuring the period of oscillation of the
flow tubes, which is proportional to the density of the medium. While calibrating the density measuring channel
for two different fluids with known (measured with density meter) density (air and water) the period of oscillation
of the flow tubes corresponding to this density shall be measured. Medium density and oscillation period shall
be specified via the transmitter display or digital interface. Due to the linear dependence based on the period of
oscillation of the flow tubes we can calculate the density of the medium.
The integrated platinum sensor Pt100 measures the temperature. Measured temperature is used for
automatic correction of the flow rate and density related to the temperature changes. Temperature correction
coefficients for the flow rate and density are set as default at the plant and can be adjusted through the display
menu.
The flow rate can be manually corrected depending on the pressure changes. In correction mode the
electronic unit adjust the current flow of medium according to the working pressure inside the pipe. Pressure
can be adjusted by inputting directly in the electronic unit or connecting to pressure gauge. Communication with
external pressure gauge is performed via Modbus.

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The sensor forms the primary signal containing the data on the time delay between the sensors. The
primary signal is transmitted to the electronic unit mounted integrally with the flow meter or remotely.
The electronic unit processes the primary signal, calculates mass and volume flow, temperature
compensation, forms output signals and show these info on the display. There are two version of the electronic
unit: standard and extended. Detailed description of each type is presented in the Operation manuals EM-
260.000.000.002.01 or EM-260.000.000.000.01. Operation manuals can be found in the website www.emis-
kip.ru/ru/books1 in the related section EMIS-MASS 260.
Measurement advantages:
•direct measurement of mass flow rate in the pipeline without changes in parameters
leading to further inaccuracy.
•high precision and stability for a long time;
•measurement of highly viscous fluids, non Newtonian fluids, fluids with solid and gas
inclusions;
•no moving parts (small oscillation amplitude can be ignored) and wearing parts which
extend the service life of the flow meter;
•no barrier for the flow path inside the tubes;
•temperature and density measurement;
•no straight pipes before/after the flow meter or the flow conditioner are required.
Vertical and horizontal installation at different angles to the flow body.

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1.3 Order Sheet
EMIS-MASS 260 order sheet is presented in the Table 1.1.
Example of the completed order sheet:
EMIS-МАСС-260 –Ex –050K –И –Ж –2,5 –100 –24 –А1 – 0,25 –1,0 –1,0 –У –SC –Е –GOST
Table 1.1 - Flow meter configurations
1
Explosion protection
–
No explosion protection (standard version)
Ex
Ex-proof marking:
Flow meter: 1Ех ib IIC Т6…T1 Gb X; 0Ех ia IIC Т6…T1 Ga X1);
Electronic unit: 1Ех db [ib] IIС Т6 Gb X; 1Ех db [ia Ga] IIС Т6 Gb X1);
Amplifier: 1Ех db [ib] IIС Т6 Gb X (amplifier is used for Dn≥100 with electronic unit of standard
and extended versions).
ExBB2)
Ex-proof marking:
Flow meter: 0Ех ia IIC Т6…T1 Ga X;
Electronic unit: 1Ех db [ia Ga] IIС Т6 Gb X.
RV3)
Ex-proof marking:
Flow meter: RV Ex d ia I Mb X;
Electronic unit: RV Ex db [ib] I Mb X;
Terminal block: РВ Ex db I Mb X4);
Additional terminal box: РВ Ex ib I Mb X4).
RO-RV5)
Ex-proof marking:
Flow meter: РО Ex ia I Ma X;
Electronic unit: РВ Ex db [ia Ma] I Mb X;
Terminal block: РВ Ex db I Mb X;
Additional terminal box: РО Ex ia I Ma X.
RO-RVBB2)5)
Ex-proof marking:
Flow meter: РО Ex ia I Ma X;
Electronic unit: РВ Ex db [ia Ma] I Mb X;
Terminal block: РВ Ex db I Mb X;
Additional terminal box: РО Ex ia I Ma X.
1) –Marking is applied to flow meter with extended electronic unit;
2) –Consider electrical parameters for this configuration, which are described in the clause 1.6 Explosion
protection, it is equipped with special version of electronic unit only.
3) –Configuration is equipped with electronic unit of standard or extended version.
4) –Terminal box and additional terminal boxes applied to the remote type flow meters;
5) –Available with special version electronic unit only.
2
Flow tube diameter
010
Dn 10
080
Dn 80
015
Dn 15
100
Dn 100
025
Dn 25
150
Dn 150
040
Dn 40
200
Dn 200
050
Dn 50
3
Body type
–
Standard U-shaped
C
Compact

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OPERATION MANUAL
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Х
Special config.
4
Flow meter mounting
I
Integral version - sensor and transmitter as integral assembly
R
remote installation with cable length of 3m
RXX
Remote version with cable length of XXm. Max length - 100m1)
1) –for ex-proof configuration - 50m
5
Calibration
L
Liquid calibration
G
Gas calibration, additional liquid calibration
6
Flow tube material
–
Stainless steel (standard configuration)
X
by order
7
Medium pressure
1.61
max pressure - 1.6 MPa
2.51
max pressure - 2.5 MPa
4.0
max pressure - 4.0 MPa
6.3
max pressure - 6.3 MPa
10
max pressure - 10 MPa
16
max pressure - 16 MPa
25
max pressure - 25 MPa
1) Flow meters for 1.6 and 2.5 pressure are equipped with 4.0Mpa flanges.
8
Medium temperature
75
measuring medium temperature from -60 to +75 °С
95
measuring medium temperature from -60 to +95 °С
100
measuring medium temperature from -60 to +100 °С
135
measuring medium temperature from -60 to +135 °С (remote type only)
200
measuring medium temperature from -60 to +200 °С (remote type only)
9
Power supply
24
24V DC
220
220V AC
10
Output signals
Standard electronic unit
–
digital RS-485 + pulse output signal (active)
A
digital RS-485 + pulse output signal (active)+ current output signal 4-20mA (active)
A1
digital RS-485 + pulse output signal (active)+ current output signal 4-20mA (passive)

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OPERATION MANUAL
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A2
digital RS-485 + pulse output signal (passive)+ current output signal 4-20mA (active)
A3
digital RS-485 + pulse output signal (passive)+ current output signal 4-20mA (passive)
TA
digital RS-485 + pulse output signal (active)+ current output signal 4-20mA with digital HART
(passive)
Н
digital RS-485 + pulse output signal (active)+ current output signal 4-20mA with digital HART
(passive)
Н1
digital RS-485 + pulse output signal (passive)+ current output signal 4-20mA with digital HART
(active)
Н2
digital RS-485 + pulse output signal (passive)+ current output signal 4-20mA with digital HART
(active)
Н3
digital RS-485 + pulse output signal (passive)+ current output signal 4-20mA with digital HART
(active)
TH
RS-485 + current output signal 4-20mA with digital HART (active) + current output 4-20mA
(active)
ТН1
RS-485 + current output signal 4-20mA with digital HART (passive) + current output 4-20mA
(passive)
F
digital RS-485 + pulse output signal (active) + pulse output signal (active)
F1
digital RS-485 + pulse output signal (passive) + pulse output signal (passive)
F2
digital RS-485 + pulse output signal (passive)
Extended electronic unit
–
digital RS-485 + pulse output signal (active)
A1
digital RS-485 + pulse output signal (active)+ current output signal 4-20mA (passive)
A3
digital RS-485 + pulse output signal (passive)+ current output signal 4-20mA (passive)
TA
digital RS-485 + pulse output signal (active)+ current output signal 4-20mA with digital HART
(passive) without additional error
THF
digital RS-485 + current output signal 4-20mA (passive) with digital HART + current output
signal 4-20mA (passive) + pulse output signal (switchable active/passive)
TTF
digital RS-485 + current output signal 4-20mA (passive)+ current output signal 4-20mA
(passive) + current output signal (switchable active/passive)
Special version electronic unit
F2
digital RS-485 + pulse output signal (passive)
11
Accuracy
0.1
Accuracy class 0.1
0.15
Accuracy class 0.15
0.2
Accuracy class 0.2
0.25
Accuracy class 0.25
0.5
Accuracy class 0.5
12
Density measuring error1)
1.0
Error for liquid and gas ±1,0 kg/m3
0,32)
Error for liquid ±0,3 kg/m3
0,52)
Error for liquid ±0,5 kg/m3
2.0
Error for liquid and gas ±2,0 kg/m3

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5.0
Error for liquid and gas ±5,0 kg/m3
10.0
Error for liquid and gas ±10,0 kg/m3
1) After simulation test density measurement error is ±20,0 kg/m3.
2) Upon prior agreement, for liquid only.
13
Temperature error
1.0
Standard error ±1,0°С
0,51)
Error ±0,5°С
1) Upon prior agreement.
14
Electronic unit version1)
–
Standard version
U
Extended version2)
UIP
Extended version, simulation test function2)
S
Special version
SIP
Special version, simulation test function2)
1) –For flow meters with electronic unit of “-”, “У” and “С” versions only flow calibration is available for
periodical testing. For flow meters with electronic unit of “УИП” and “СИП” versions flow calibration and
simulation test are available for periodical testing.
2) –Amount of output pulse signals can be increased to 3 upon special request.
15
Display
-
LED display
ND
No LED display
1) Version without display is available for electronic unit of “C” and “СИП” versions.
16
Configuration1)
-
Standard version
FR
Flanged connection with reducers
1) –Use table 1.4 and 1.5 to choose the configuration.
17
Calibration
–
manufacturer calibration
SC
state calibration
18
Register map
–
ЭМИС register map
P
ProLink registry map
19
Sealing surface
B
Flange connection, flange face - type B “Raised face” under GOST 33259
B1
Flange connection, flange face - type B1 Raised face under EN 1092-1
C
Flange connection, flange face - type C Male under GOST 33259 or EN 1092-1
D
Flange connection, flange face - type D Female under GOST 33259 or EN 1092-1
E
Flange connection, flange face - type E Raised face under GOST 33259 (standard) or EN
1092-1

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F
Flange connection, flange face - type F Female under GOST 33259 or EN 1092-1
J
Flange connection, flange face - J type Oval gasket under GOST 33259 (standard version 10-
25 MPa)
RF
Flange connection, flange face - RF type Raised face under ASME B16.5
RTJ
Flange connection, flange face - RTJ type Oval gasket under ASME B16.5
S
socket (for flow meters up to 4MPa connection according to DIN11851)
X
customized (various connection types under GOST, EN, ASME; please specify)
20
Flange standards
GOST
GOST 33259
EN
EN 1092-1
ASME
ASME (ANSI) B16.5
DIN
GOST 11851
21
Industrial versions
-
standard version
AST
for environments containing hydrogen sulfide
Hyd
for hydrogen, hydrogen-containing gases
22
Installation length
-
Standard version (length according to the Appendix A)
Х
Upon request (installation length shall not be shorter than specified in the Appendix A)
23
Heating jacket
-
standard version
J
With heating jacket (for compact versions)
Mounting kit parts are listed in the table 1.2.
Example of the completed order sheet:
Mounting kit EMIS - MASS 260 050 - 2.5 - 11 - F - GOST - 09G2S
Table 1.2 - Mounting kit versions
1
Flow tube diameter
010
Dn 10
080
Dn 80
015
Dn 15
100
Dn 100
025
Dn 25
150
Dn 150
040
Dn 40
200
Dn 200
050
Dn 50
X
by order
2
Medium pressure
1.6
max pressure - 1,6 MPa
10
max pressure - 10 MPa

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2.5
max pressure - 2,5 MPa
16
max pressure - 16 MPa
4.0
max pressure - 4,0 MPa
25
max pressure - 25 MPa
6.3
max pressure - 6,3 MPa
3
Flange type
01
Flat flange
11
Weld neck flange
4
Sealing surface
B
Flange connection, flange face - type B “Raised face” under GOST 33259
B1
Flange connection, flange face - type B1 Raised face under EN 1092-1
C
Flange connection, flange face - type C Male under GOST 33259 or
EN 1092-1
D
Flange connection, flange face - type D Female under GOST 33259 or
EN 1092-1
E
Flange connection, flange face - type E Male under GOST 33259 or
EN 1092-1-2007
F
Flange connection, flange face - type F Female under GOST 33259 or EN 1092-1
J
Flange connection, flange face - type J Oval gasket under GOST 33259
RF
Flange connection, flange face - RF type Raised face under ASME B16.5
RTJ
Flange connection, flange face - RTJ type Oval gasket under ASME B16.5
S
socket (for flow meters up to 4MPa connection according to DIN11851)
X
customized (various connection types under GOST, EN, ASME; please specify)
5
Flange standards
GOST
GOST 33259
EN
EN 1092-1
ASME
ASME (ANSI) B16.5
Х
by order
6
Flange material

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09G2С
Steel 09G2S
Ст20
Steel 20
Н
Stainless steel 12Х18Н10Т
13ХFА
Steel 13ХFА
Х
by order

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1.4 Technical Parameters
1.4.1 Brief description of technical parameters
Brief description of technical parameters is shown in Table 1.3
Table 1.3 - Technical parameters of flow meter
Name
Description
Dn, mm
10; 15; 25; 40; 50; 80; 100; 150; 200
Accuracy
0,1; 0,15; 0,2; 0,25; 0,5
Excessive pressure of medium, MPa
1,6; 2,5; 4,0; 6,3; 10; 16; 25
(see table 1.6 and 1.7)
Temperature range, ºС
From -60 to +200ºС
Explosion protection
Version
Marking
Ex
Ex-proof marking:
Flow meter: 1Ех ib IIC Т6…T1 Gb X; 0Ех ia IIC Т6…T1
Ga X;
Electronic unit: 1Ех db [ib] IIС Т6 Gb X; 1Ех db [ia Ga]
IIС Т6 Gb X;
Amplifier: 1Ех db [ib] IIС Т6 Gb X.
ExBB
Ex-proof marking:
Flow meter: 0Ех ia IIC Т6…T1 Ga X;
Electronic unit: 1Ех db [ia Ga] IIС Т6 Gb X.
RV
Ex-proof marking:
Flow meter: RV Ex d ia I Mb X;
Electronic unit: RV Ex db [ib] I Mb X;
Terminal block: RV Ex db I Mb X;
Additional terminal box: RV Ex ib I Mb X.
RO-RV
Ex-proof marking:
Flow meter: РО Ex ia I Ma X;
Electronic unit: RV Ex db [ia Ma] I Mb X;
Terminal block: RV Ex db I Mb X;
Additional terminal box: РО Ex ia I Ma X.
RO-RVBB
Ex-proof marking:
Flow meter: РО Ex ia I Ma X;
Electronic unit: RV Ex db [ia Ma] I Mb X;
Terminal block: RV Ex db I Mb X;
Additional terminal box: РО Ex ia I Ma X.
Atmospheric pressure, kPa
84.0 to 106.7
Ambient temperature, °С
From -60 to +70ºС
Relative humidity, % less than
90 ± 3 % (non-condensing under 25ºС)
Magnetic field resistance
up to 40 A/m, 50Hz
Vibration resistance
From 10 to 150Hz with acceleration not exceeding 9.8 m/s2, V1 group
under GOST 52931-2008.
From 5 to 2000Hz with acceleration not exceeding 49 m/s2, G1 group

EMIS-MASS 260
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under GOST R 52931-2008 upon prior agreement.
Dust and water protection
IP66 / IP67
Calibration interval
5 years
Temperature gauge
Pt100
Service life
over 20 years
Dimensions and weight
see Appendix A
Materials
Flow meter body - stainless steel AISI 304.
Flow meter casing - stainless steel AISI 304.
Sensor tubes - stainless steel AISI 316L.
Electronic unit - aluminum alloy
Does not contain precious metals.
* Upon prior agreement with EMIS engineering service.
Note: You can customize flow meter parameters according your specific demands.
1.4.2 Measuring ranges
Flow meter provides mass flow measurement with accuracy of δml, which is numerically equal to the
accuracy class in the flow range from Qmin to Qmax according to the table 1.4.
When measuring flow of liquid, flow meter performance is provided within the flow ranges from Qmin to
Qmax according to the table 1.4.1.
In the range from Qmin to Qmax as specified in the table 1.5, flow meter provides gas measurement
accuracy of δmg, %:
δmg = Кt+0.25,
(1.2)
Where Kt - flow meter accuracy class according to the order sheet.
When measuring gas flow, flow meter performance is provided within the flow ranges from Qmin to
Qmax according to the table 1.5.
Flow meter is designed for measure of single-phase mediums (liquid or gas).
Qmin depends on the medium parameters and shall be specified in the order sheer.
Table 1.4.1 - Mass flow rate measuring ranges for liquid
Dn
Configuration
Qmin,
kg/h
Qmin, kg/h
**Qmax,
kg/h
Zero stability,
kg/h
Accuracy class
0.1; 0.15; 0.2;
0,25 и 0,5
10
-
10
–
50*
1,100
0.04
15
FR
10
–
50*
1,100
0.04
15C
-
10
200
150
3,000
0.2

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25C
FR
10
200
150
3,000
0.2
25C
-
30
600
400
9,000
0.6
25
-
40
600
300
10,000
0.4
40C
FR
30
600
400
9,000
0.6
40
FR
40
600
300
10,000
0.4
40C
-
180
3,600
2,400
25,000
3.6
40
-
160
2,200
1,500
35,000
1.28
50
FR
160
2,200
1,500
35,000
1.28
50C
FR
180
3,600
2,400
25,000
3.6
50К
-
250
5,000
3,500
50,000
5
50
-
250
3,500
2,500
55,000
2
80
FR
250
3,500
2,500
55,000
2
80C
FR
250
5,000
3,500
50,000
5
80К
-
600
12,000
8,000
140,000
12
80
-
700
9,500
6,000
200,000
6
100
FR
700
9,500
6,000
200,000
6
100C
FR
600
12,000
8,000
140,000
12
100C
-
1,000
20,000
15,000
240,000
20
100
-
1,000
15,000
10,000
430,000
8
150
FR
1,000
15,000
10,000
430,000
8
150C
FR
1,000
20,000
15,000
240,000
20
150C
-
2,500
50,000
35,000
430,000
50
150
-
2,500
35,000
25,000
500,000
20
200C
-
5,000
100,000
70,000
1,000,000
100
* For flow meters of Dn10 0.5 accuracy can be provided.
** Qmax - flow complies with the pressure drop of 1bar when measuring flow of liquid at 20°C.

EMIS-MASS 260
OPERATION MANUAL
19
Table 1.4.2 - Extended liquid flow ranges
Dn
Configuration
Qmin,
kg/h
Qmin, kg/h
**Qmax,
kg/h
Zero stability,
kg/h
Accuracy class
0.1; 0.15; 0.2;
0,25 и 0,5
10
-
10
–
50*
1,600
0.04
15
FR
10
–
50*
1,600
0.04
15C
-
10
200
150
4,600
0.2
25C
FR
10
200
150
4,600
0.2
25C
-
30
600
400
14,000
0.6
25
-
40
600
300
14,000
0.4
40C
FR
30
600
400
14,000
0.6
40
FR
40
600
300
14,000
0.4
40C
-
180
3,600
2,400
34,000
3.6
40
-
160
2,200
1,500
51,000
1.28
50
FR
160
2,200
1,500
51,000
1.28
50C
FR
180
3,600
2,400
34,000
3.6
50C
-
250
5,000
3,500
64,000
5
50
-
250
3,500
2,500
77,000
2
80
FR
250
3,500
2,500
77,000
2
80C
FR
250
5,000
3,500
64,000
5
80C
-
600
12,000
8,000
188,000
12
80
-
700
9,500
6,000
288,000
6
100
FR
700
9,500
6,000
288,000
6
100C
FR
600
12,000
8,000
188,000
12
100C
-
1,000
20,000
15,000
375,000
20
100
-
1,000
15,000
10,000
550,000
8
150
FR
1,000
15,000
10,000
550,000
8
150C
FR
1,000
20,000
15,000
375,000
20
150C
-
2,500
50,000
35,000
574,000
50
150
-
2,500
35,000
25,000
900,000
20
200C
-
5,000
100,000
70,000
1,000,000
100
* For flow meters of Dn10 0.5 accuracy can be provided.
** Qmax - flow complies with the pressure drop of 2bars when measuring flow of liquid at 20°C.

EMIS-MASS 260
OPERATION MANUAL
20
Table 1.5 - Mass flow rate measuring ranges for gas
Dn
Configuration
Qmin,
kg/h
Qmin, kg/h
**Q(mg)max
, kg/h
Zero stability,
kg/h
Accuracy class
0.1, 0.15, 0.2
0,25 и 0,5
10
-
10
–
50*
15.7∙ρg
0.04
15
FR
10
–
50*
15.7∙ρg
0.04
15C
-
10
200
150
42.9∙ρg
0.2
25C
FR
10
200
150
42.9∙ρg
0.2
25C
-
30
600
400
128.6∙ρg
0.6
25
-
40
600
300
142.8∙ρg
0.4
40C
FR
30
600
400
128.6∙ρg
0.6
40
FR
40
600
300
142.8∙ρg
0.4
40C
-
180
3,600
2,400
357.1∙ρg
3.6
40
-
160
2,200
1,500
500∙ρg
1.28
50
FR
160
2,200
1,500
500∙ρg
1.28
50C
FR
180
3,600
2,400
357.1∙ρg
3.6
50C
-
250
5,000
3,500
714.3∙ρg
5
50
-
250
3,500
2,500
785.7∙ρg
2
80
FR
250
3,500
2,500
785.7∙ρg
2
80C
FR
250
5,000
3,500
714.3∙ρg
5
80C
-
600
12,000
8,000
2,000∙ρg
12
80
-
700
9,500
6,000
2,857.1∙ρg
6
100
FR
700
9,500
6,000
2,857.1∙ρg
6
100C
FR
600
12,000
8,000
2,000∙ρg
12
100C
-
1,000
20,000
15,000
3,428.6∙ρg
20
100
-
1,000
15,000
10,000
6,142.9∙ρg
8
150
FR
1,000
15,000
10,000
6,142.9∙ρg
8
150C
FR
1,000
20,000
15,000
3,428.6∙ρg
20
150C
-
2,500
50,000
35,000
6,142.9∙ρg
50
150
-
2,500
35,000
25,000
7,142.9∙ρg
20
200C
-
5,000
100,000
70,000
14,285.7∙ρg
100
* For flow meters of Dn10 0.5 accuracy can be provided.
Maximum gas flow can be calculated using the formula Q(mg)max =(Qmax∙ρg)/ кg
Where ρg–gas density under working conditions, kg/cbm;
Kg- empirical coefficient, Kg= 70 kg/cbm;
Maximum mass flow of gas Q(mg) shall not exceed maximum mass flow of liquid Qmax as specified in the table 1.4.1.
Reduce mass flow to volume flow using the formula below:
Qv= Q/ρ,
(1.3)
Where Q –upper or lower limit of the full range, kg/h.
ρ –is medium density under working conditions, kg/m3;
Manufacturer set up low flow cut-off value as 1% of the maximum value to avoid self running. If
required, it can be decreased locally at the installation site. The low flow cut off value can be changed through
the menu or Modbus.
Flow density range from 1 to 3000 m3/h.
Maximum dynamic viscosity of the medium 1500 mPa * s.
Gas inclusions in liquid shall not exceed 1% of the volume for 0.1%, 0.15%, 0.2%, 0,25% and 3% for
0,5% accuracy flow meters.