Kobold BGF Operating Manual
Variable-Area Flow Meter
for Horizontal and Vertical Installation
Installation and Operating Instructions
BGF
Heinri
chs Messtechnik
BGF Installation and Operating Instructions
Contents
1 Introduction ............................................................................................................................................. 4
2 Identification............................................................................................................................................ 4
2.1 Supplier/manufacturer .................................................................................................................................... 4
2.2 Product type .................................................................................................................................................... 4
2.3 Issue date ......................................................................................................................................................... 4
2.4 Version no. ....................................................................................................................................................... 4
3 Applications ............................................................................................................................................. 4
4 Safety instructions ................................................................................................................................... 4
4.1 Intended use .................................................................................................................................................... 4
4.2 Installation, start-up and operating personnel ................................................................................................ 4
5 Packaging / Storage / Transportation ....................................................................................................... 4
6 Operational mode and system design ...................................................................................................... 5
6.1 Measuring principle ......................................................................................................................................... 5
6.2 System design .................................................................................................................................................. 5
7 Input ........................................................................................................................................................ 5
7.1 Measured variable ........................................................................................................................................... 5
7.2 Measuring range (lower-range and upper-range value) ................................................................................. 5
7.3 Measuring range chart .................................................................................................................................... 6
8 Output (electrical equipment, options) .................................................................................................... 6
8.1 Binary output ................................................................................................................................................... 6
8.1.1 KEI 1 or KEI 2 limit switches ............................................................................................................................. 6
8.1.2 KEM 1 or KEM 2 limit transducers (special version) ........................................................................................ 6
8.2 Analog output with the electronic transmitter ES .......................................................................................... 6
8.3 Model ES-PPA and ES-FF .................................................................................................................................. 7
9 Characteristic values ................................................................................................................................ 7
9.1 Measuring Accuracy ........................................................................................................................................ 7
9.1.1 Reference conditions ....................................................................................................................................... 7
9.1.2 Measured error................................................................................................................................................ 7
9.1.3 Repeatability .................................................................................................................................................... 7
9.2 Influence of ambient temperature .................................................................................................................. 7
9.3 Influence of fluid temperature ........................................................................................................................ 7
10 Conditions of use ..................................................................................................................................... 7
10.1 Installation conditions ..................................................................................................................................... 7
10.1.1 Mounting/start-up ........................................................................................................................................... 8
10.1.2 Device settings ................................................................................................................................................. 9
10.1.3 Adjusting the switch point for the inductive limit switch KEI ......................................................................... 9
10.1.4 Adjusting the switch point of the SPDT Micro Switch KEM ............................................................................ 9
10.1.5 Installation in hazardous areas ...................................................................................................................... 10
10.2 Ambient conditions ....................................................................................................................................... 11
10.2.1 Ambient temperature ranges ........................................................................................................................ 11
10.2.2 Storage temperature ..................................................................................................................................... 11
10.2.3 Climatic category ........................................................................................................................................... 11
10.2.4 Degree of protection ..................................................................................................................................... 11
10.2.5 Shock resistance/vibration resistance ........................................................................................................... 11
10.2.6 Electromagnetic compatibility ....................................................................................................................... 11
10.3 Fluid conditions ............................................................................................................................................. 12
10.3.1 Fluid temperature ranges .............................................................................................................................. 12
10.3.2 Diagrams: Max. ambient temperature based on the fluid temperature for the ES ...................................... 12
10.3.3 Fluid pressure limit ........................................................................................................................................ 13
10.3.4 Inlet and outlet sections ................................................................................................................................ 13
10.3.5 Physical state ................................................................................................................................................. 13
10.3.6 Density ........................................................................................................................................................... 13
10.3.7 Viscosity ......................................................................................................................................................... 13
10.3.8 Pressure (for gas measurement) ................................................................................................................... 13
10.3.9 Pressure Drop ................................................................................................................................................ 13
11 Construction details ............................................................................................................................... 13
11.1 Type of construction/dimensions .................................................................................................................. 13
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BGF Installation and Operating Instructions
11.1.1 Aluminum indicator housing ......................................................................................................................... 13
11.1.2 Dimensional drawing with heating connection ............................................................................................. 14
11.1.3 Indicator housing made of stainless steel ..................................................................................................... 15
11.2 Weights .......................................................................................................................................................... 16
11.3 Materials ........................................................................................................................................................ 16
11.4 Process connection ........................................................................................................................................ 17
11.5 Magnetic filter ............................................................................................................................................... 17
11.6 Electrical connection ..................................................................................................................................... 18
11.6.1 Wiring diagram for ES transmitter (signal output 4-20 mA with HART) ..................................................... 18
11.6.2 Wiring diagram for ES transmitter with 4-20 mA output and 2 limit switches ............................................. 19
11.6.3 Wiring diagram for ES transmitter with 4- 20 mA output, pulse output and limit switch ............................. 19
11.6.4 Wiring diagram for inductive limit switches KEI ............................................................................................ 20
11.6.5 Wiring diagram for KEM 1 and KEM 2 micro switches .................................................................................. 20
11.6.6 Devices with unconnected cable end ............................................................................................................ 20
12 Indicator unit ......................................................................................................................................... 20
13 Power supply ......................................................................................................................................... 20
14 CE marking ............................................................................................................................................. 21
15 Order information .................................................................................................................................. 21
16 Standards and directives, certificates and approvals .............................................................................. 21
17 Maintenance .......................................................................................................................................... 21
18 Installing and removing the resetting spring and the measuring body ................................................... 21
19 Trouble shooting .................................................................................................................................... 21
20 Returning devices for repair and service ................................................................................................ 22
21 Spare parts ............................................................................................................................................. 22
22 Exploded views ...................................................................................................................................... 23
22.1 Fitting with measuring body .......................................................................................................................... 23
22.1.1 BGF-.... standard version DN 15-25 .............................................................................................................. 23
22.1.2 BGF-.... standard version DN 50-80 .............................................................................................................. 23
22.2 Indicator unit ................................................................................................................................................. 24
22.2.1 Complete indicator unit, local with scale ...................................................................................................... 24
22.2.2 Complete indicator unit with 1 limit switch SJ 3,5 N .................................................................................... 24
22.2.3 Complete indicator unit with 2 limit switches SJ 3,5 N ................................................................................ 25
22.2.4 Complete indicator unit with 1 pc SPDT micro switch ................................................................................... 25
22.2.5 Complete Indicator unit with 2 pcs SPDT micro switches KEM ................................................................... 25
22.2.6 Complete Indicator unit with transmitter ES Ex HART ............................................................................. 25
22.3 Model Code ................................................................................................................................................... 26
23 Decontamination certificate for device cleaning .................................................................................... 29
24 EC Type Examination Certificate ............................................................................................................. 30
25 Declaration of conformity ...................................................................................................................... 36
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BGF Installation and Operating Instructions
1 Introduction
These Installation and Operating Instructions serve as a tool for the correct installation, operation and maintenance of the device.
They are a supplement to the BGF Device Description. Read the manual carefully before the device is installed and put into use. It
does not include special versions or applications.
All devices are thoroughly checked for order compliance and operability before delivery. Upon receipt, please conduct a visual
inspection of possible damage that may be identified as having occurred during shipment. If you discover any defect, please
contact our head office in Cologne or the local sales office responsible for your area (see the telephone directory at the end of this
manual or on our Web site). Apart from a description of the error, we will need the equipment type and serial number of the
delivery.
Heinrichs Messtechnik shall not furnish guarantee for any repair work done without prior notice. Unless otherwise agreed on, the
rejected parts must be made available to us in case a claim is made.
2 Identification
2.1 Supplier/manufacturer
Heinrichs Messtechnik GmbH
Robert-Perthel-Str. 9 ⋅ D-50739 Köln
Phone +49 (221) 49708 - 0
Fax +49 (221) 49708 - 178
Internet: http://www.heinrichs.eu
E-mail: mailto:info@heinrichs.eu
2.2 Product type
Mechanical flow meter in all-metal design
Instruments series BGF will be
delivered without label stickers.
All important informations such as:
-Measuring range
-Manufacturer
-Serial number
-Model code
-CE marking
-Neccessary Ex marking
are printed on instrument scale and
can be read from there.
2.3 Issue date
19.10.2016
2.4 Version no.
File: BGF_BA_16.02_en
3 Applications
The BGF flow meter is suitable for flow measurement of liquid or gaseous products in pipes. The special advantage is that it can
be used for all directions. It shows the current flow rate in volume or mass per unit in time.
Applications: flow measurement, dosing, monitoring, adjusting and control of liquid and gaseous products.
The meter’s design makes it ideal for processes under difficult and adverse operating conditions.
The devices are available with additional electrical equipment for process monitoring and control.
4 Safety instructions
4.1 Intended use
The BGF variable area flow meter may be used only for flow measurements of liquid and gaseous media. The
manufacturer shall not be liable for damages that may result from improper or unintended use.
When dealing with an aggressive medium, clarify the material durability of all wetted parts. When using the device in
hazardous areas, follow the applicable national installation rules.
4.2 Installation, start-up and operating personnel
Only trained specialists authorized from the system operator may carry out the installation, electrical installations,
startup, maintenance and operation. They must read and understand the operating manual and follow its instructions.
Basically, follow the conditions and provisions applicable in your country.
5 Packaging / Storage / Transportation
Carefully unpack the device to avoid damage. The magnet body is secured against damage in transit depending on the device size.
Remove this transport protection from the fitting. By pressing the float from the bottom upwards (using a wooden stick, for
example), check whether the float can easily be moved upwards and slides back downwards. The pointer position of the indicator
unit must follow the direction of movement of the float.
With the help of the delivery note enclosed in the packaging, check whether all technically relevant data correspond with your
requirements.
Storage and installation must be done in a clean and dry room so that contamination – especially of the interior of the fitting – is
avoided. Follow the limit values for ambient temperature. When transporting the device to a remote mounting location, we
recommend that you reuse the factory-issued packaging and the transport protection.
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BGF Installation and Operating Instructions
6 Operational mode and system design
6.1 Measuring principle
The measuring element consists of a sharp-edged measuring ring and a conical measuring body with a compression spring.
If a medium flows with sufficient velocity through the measuring ring, the position of the measuring body will be shifted until the flow
force and the measuring body plus the spring tension establish equilibrium.
The position of the measuring body in the measuring ring serves as the measure of the flow and is converted to a rotary motion by
the permanent magnet embedded in the measuring body through a magnetic coupling system. It is then transmitted to the scale
and the additional electrical equipment.
1
2
3
4
5
6
1 Fitting
2 Resetting spring / guide
3 Measuring ring
4 Measuring body
5 Magnet tracking system
6 Scale
7 Indicator unit
7
6.2 System design
The meter consists of a cylindrical fitting pipe with flange connections on both sides, a measuring ring is firmly inserted in it and a
vertically movable, conical measuring body.
The position of the measuring body resulting from the flow rate is converted to a rotary motion on the pointer axis of the analog
indicator unit via the built-in permanent magnet through the magnetic tracking system.
7 Input
7.1 Measured variable
Volume flow
7.2 Measuring range (lower-range and upper-range value)
Lower-range value 10% of full scale value
Upper range value 100% of full scale value
Measuring range span 10-100%
Smallest measuring range 10-100 l/h water
Largest measuring range 6000-60000 l/h water (standard Version 1.4571 / 316 TI)
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BGF Installation and Operating Instructions
Measuring range chart BGF
4)
Body
Range
Measuring rang water
Measuring range air
Press.
Note
15 1/2”
1)
1)
20 3/4"
1)
25 1”
1)
32 1 ¼”
1)
15 3/4"
1)
20 1”
1)
25 1 ¼”
1)
32 1 ½”
1)
40 1 ½”
1)
1)
1)
1)
50 2”
2)
65
2)
2)
2)
2)
80 3”
2)
2)
2)
2)
1)
7.3 Measuring range chart
4)
DN
EN1092-1
ASME
B16.5-2003
S… st.st.
code
(1000 kg/m3; 1 mPas)
P… PTFE
H… Hastelloy
S15 H 10 - 100 I/h 0,3 - 3 m3/h 110
S15 I 16 - 160 l/h 0,5 - 4,6 m3/h 110
S15 J 25 - 250 I/h 0,7 - 7,0 m3/h 110
S15 K 40 - 400 I/h 1,0 - 11 m3/h 110
S15 L 60 - 600 I/h 1,7 - 17 m3/h 120
S25 M 100 - 1000 I/h 3 - 30 m3/h 90
S25 N 160 - 1600 I/h 4 - 46 m3/h 105
S25 P 250 - 2500 I/h 7 - 70 m3/h 130
S25 Q 400 - 4000 I/h 11 - 110 m3/h 240
S40 P 250 - 2500 I/h 7 - 70 m3/h 75
S40 Q 400 - 4000 I/h 11 - 110 m3/h 110
S40 R 600 - 6000 I/h 17 - 170 m3/h 130
S40 S 1000-10000 l/h 29-290 m3/h ?
S50 Q 400 - 4000 I/h 11 - 110 m3/h 100
S50 R 600 - 6000 I/h 17 - 170 m3/h 110
S50 S 1000 - 10000 I/h 29 - 290 m3/h 120
S50 T 1600 - 16000 I/h 46 - 460 m3/h 130
S50 U 2500 - 25000 I/h 70 - 700 m3/h 200
S80 T 1600 - 16000 I/h 46 - 460 m3/h 110
S80 U 2500 - 25000 l/h 70 - 700 m3/h 130
S80 V 4000 - 40000 I/h 110 - 1100 m3/h 200
S1H W 6000 - 60000 I/h 170 - 1700 m3/h
Measuring body PTFE or stainless steel
2)
Measuring body PP, PTFE or stainless steel
3)
with only atmospheric pressure a measurement is not possible. Indicated values are for orientation. For gas
measurements a factor of 2-3 of the inlet pressure should be considered
4)
Restrictions for instruments with PTFE lining
8 Output (electrical equipment, options)
(1.013 bar abs., 20°C) 3)
loss
(mbar)
8.1 Binary output
Using the segments of the slot-type initiators or the eccentric discs of the micro switches, any switching point between 10% and
90% of the flow rate can be set.
8.1.1 KEI 1 or KEI 2 limit switches
KEI 1 = 1 limit switch
KEI 2 = 2 limit switches
Model: SJ 3,5N, manufacturer Pepper l+ Fuchs (special switch possible, e.g. safety version)
Safety class: PTB Nr. 99 ATEX 2219 X
PTB Nr. 00 ATEX 2048 X
8.1.2 KEM 1 or KEM 2 limit transducers (special version)
SPDT micro switches whose switching point is activated by a cam plate.
KEM 1 = 1 SPDT micro switch
KEM 2 = 2 SPDT micro switches
Maximum switching capacity:
230 VAC 50/60Hz 6 A
24 VDC 0.5 A
110 VDC 0.2 A
8.2 Analog output with the electronic transmitter ES
The electronic transmitter ES is factory-calibrated to the delivered scale values. The signal output can only be supplied in a twowire connection with 4-20 mA. The 4-20 mA signal includes HART protocol - alternatively it can have PROFIBUS PA® or
FIELDBUS FOUNDATION® interface - see point 8.3
Additional options: 2 limit values, alternatively 1 limit value and 1 pulse output
The signal output and the limit values can be configured using a HART modem operating on the following configuration programs:
SensorPort from Bopp & Reuther, PDM from Siemens or AMS from Rosemount. Furthermore, a HART hand-held terminal (with
DD software) can also be used.
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BGF Installation and Operating Instructions
For more information about configuration, please refer to the separate operating Instructions for ES-PPA and ES-FF.
Safety class: DMT 00 ATEX 075 / II2G Ex ia IIC T6
When installing electrical equipment in hazardous areas, the conditions and provisions specified in the
approval documents must be followed. See also Fehler! Verweisquelle konnte nicht gefunden werden.
8.3 Model ES-PPA and ES-FF
The ES-PPA and ES-FF transmitters are FISCO field devices which are connected via a two-wire field bus circuit according to the
FISCO model.
The devices can also be connected to intrinsically safe field bus circuits which not correspond to the FISCO model. In this case the
electrical maximum values (Ui, Ii, Pi, Li and Ci) must be observed.
Details for the use and operation can be found in separate instruction manual ES-PPA and ES-FF
9 Characteristic values
9.1 Measuring Accuracy
9.1.1 Reference conditions
Water 20°C
9.1.2 Measured error
BGF-S/P ± 2.0 % of actual value acc VDI/VDE 3513-2 (qG=50%) for local display
Additional inaccuracy for: ES transmitter = ± 0.2%
9.1.3 Repeatability
±0.8 % of full scale
9.2 Influence of ambient temperature
1. Without electrical equipment and with limit switches without influence
2. With ES transmitter:: ± 0.5 % / 10 K reference temperature 22°C
9.3 Influence of fluid temperature
Deviations in fluid temperature from the temperature observed during calibration can result in a proportional display fault because of
the corresponding change in density. Changes in viscosity cause a non-linear display fault..
10 Conditions of use
The VDI/VDE guidelines 3513, Sheet 3, must be observed. The meter is suitable for:
1) Liquids with sufficient flow ability which are free of solids, do not bond and do not tend to settle.
2) Gases with linear flow behavior and an adequate inlet pressure.
Viscosity specifications ≥ 1 mPas cannot be considered for calibration.
10.1 Installation conditions
Vertical or horizontal installation, according to the direction of flow specified in the order.
The limit values for temperature and air humidity at the mounting location must be maintained. Avoid corrosive atmospheres. If this
cannot be avoided, ventilation must be installed.
and testing whether the pointer position changes.
Select the mounting location so as to enable a reliable reading of the scale values. Please take note as well of the space
requirement for any possible disassembly of the device.
As a rule, inlet and outlet sections in front of and behind the device are unnecessary if the medium has a linear flow profile. Avoid
mounting accessories converging on one side in front of the device. However, if this is indispensable maintain a minimum device
length of 250 mm as an inlet section.
The nominal size of the pipes to be connected must correspond to that of the meter. Avoid fittings converging on one side directly in
front of the device. As a rule, install valves behind the measuring equipment if there are gases involved.
For horizontal installation, make sure the indicator unit is not pointing upwards. This is to prevent water lodging on
the glass window and entering the device under the protective shroud of the housing.
Please make sure that there is adequate clearance from parts that might cause magnetic interferences such as
solenoid valves and ferromagnetic components like steel brackets/supports. We recommend that the minimum
lateral distance between two adjacently mounted devices be 300 mm. The devices can be mounted close together if
vertically offset by one device length. The minimum lateral clearance for interfering steel parts should be 200 mm. In
case of doubt, check the interference by moving the device back and forth in the selected distance by about 200 mm
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BGF Installation and Operating Instructions
Flow from left to right
Flow from right to left
Flow from top to bottom
10.1.1 Mounting/start-up
Before installation check whether the measuring body is free from containment. The instrument must be mounted vertically or
horizontally according the ordered confirmed flow direction.
The nominal size of the device and the process pipes must be identical. The pressure ratings and, hence, the dimensions of the
flanges must correspond. The surface roughness of the flange sealing surface must be suitable for the prescribed gaskets.
Please check whether possible accessories like spring stops, gas/viscous-type damping sets are still correctly sitting on the flange.
Check whether the mounting clearance between the flanges of the pipes corresponds to the assembly dimension of the device plus
two gaskets. To achieve stress-free mounting, the flanges of the pipes must be aligned parallel to each other.
Use connecting bolts and gaskets in the prescribed dimensions. The gaskets must be suitable for the operating pressure, the
temperature and the measured medium. With PTFE-coated devices, use gaskets whose interior and exterior diameter correspond
to the sealing strip of the device.
Tighten the screws crosswise so that the process connections are tight. See to the tightening torques of screws especially with
PTFE-coated devices.
The maximum torques for PTFE-coated devices are:
DN15/DN25 = 14 Nm/DN50 = 25 Nm/DN80 = 35 Nm/DN100 = 42 Nm (following VDI/VDE Guideline 3513).
Please check whether the pipe is adequately stable mounted so that vibration or swinging of the device can be excluded.
Do not use any mounting parts made of steel directly on the device.
When gas is used as the medium, pay special attention to the position of any adjusting valves (e.g. special option). If the device is
calibrated to more than 1.013 bars absolute pressure, the valve is usually installed behind the flow meter. At 1.013 bars absolute
pressure (free exhaust) install it in front of the device.
If there is risk of dirt or solid matter penetrating the process pipes, flush them beforehand so that these materials do not stick in the
device. Ferromagnetic solid matter such as spatter can lead to the breakdown of the device. If these materials cannot be excluded
during normal operating conditions, mount a magnetic filter (accessory) in front of the device.
10.1.1.1 Liquid Measurement / start up
10.1.1.2 Gas measurement / start up
When using liquids, flush to avoid a surge of gas bubbles. Basically avoid activation of solenoid valves to prevent the
measuring body from rocketing upwards. In general water hammers must be avoided to prevent measuring body from
damages.
When using gases, slowly increase the operating pressure. At the same time, vary the operating pressure through a
setting valve so that the measuring body will not be exposed by any flow hammer - otherwise this would damage the
measuring element.
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BGF Installation and Operating Instructions
10.1.2 Device settings
The measuring equipment is delivered ready for operation according to your order specifications. The limit transducers are set to
the desired values. If you have submitted no requirements, the basic setting for
1 switch: Minimum contact switching point at 10% of descending flow (damped/closed-circuit principle).
2 switches: Minimum contact switching point at 10% of descending flow and maximum contact switching point at
90% of ascending flow.
10.1.3 Adjusting the switch point for the inductive limit switch KEI
The inductive contact can be adjusted via a limit switch indicator (2) located at the front side of the scale
1) unscrew 4 screws of the front cover and lift off the cover
2)
!! do not remove the scale (4) !!
3) unfasten 2 locking screws (3) of the red limit switch indicator (2)
4) move the red switch indicator to the desired switch point on the scale
and tighten the locking screws (3) again
5) mount the cover and tighten it´s four screws again
1 Pointer
2 Limit switch indicator (fig. MIN)
3 Limit switch indicator locking srews
4 Locking screw switching disc
5 Switching disc KEI
10.1.4 Adjusting the switch point of the SPDT Micro Switch KEM
KEM1 and KEM2 limit switches do not have limit switch indicators.
Switch point(s) are normally factory set.
To adjust the switch points use the following procedure:
1) Ensure that the supply lines are powerless and will not be switched
active during operation.
2) unscrew 4 screws of the front cover and remove the cover
3)
!! do not remove the scale (4) !!
4) Move the pointer (3) carefully in direction of the desired switch point
5) Unfasten the screws (1) of the disc (2) carefully and move the disc
^ towards the lever of the micro switch
6) Depending on the switching function ( N/O or N/C ) the switch must be
activated (for N/C ) or non activated (for N/O )
NOTE
Due to hysteresis of KEM switches they must not be used for ranges below 250 l/h water
1 Locking screws switching disc
2 Switching disc
3 Pointer
4 Scale
5 Switching lever
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BGF Installation and Operating Instructions
°=°−°=−
=
10.1.5 Installation in hazardous areas
10.1.5.1 Without electrical equipment
The basic version of the flow meter is a non-electrical device without its own ignition sources and meets DIN EN 13463-1
requirements. It can be used in hazardous areas that require Category 2 equipment.
Marking:
Since the device does not have its own power sources that would result in a temperature increase, the fluid temperature is decisive
for the maximum surface temperature.
When used in potentially explosive dust atmospheres, the device must be cleaned regularly in order to avoid deposits exceeding
5 mm.
10.1.5.2 With built-in limit switches
When the limit switches are installed, the device becomes an electrical assembly and gets a marking in accordance with
DIN EN 60079 of built-in electrical limit transducers.
The electrical and thermal data and the special conditions of the EC Type Examination Certificate of the built-in limit transducers
must be observed (see also the diagram in Section 10.2.1.
The influence of the fluid temperature on the built-in limit transducers must be observed. The over-temperature of the maximum
fluid temperature based on the maximum ambient temperature must be considered with a factor according to the following table:
Nominal size Factor for standard
DN15 and DN25 / 1/2" and 1" 0.2 0.07
DN40 and DN50 / 1,5" and 2" 0.25 0.085
DN80 / 3" 0.3 0.1
Example for built-in limit switch at DN 15 / (1/2") and DN 25 / (1"):
Max. ambient temperature T
Max. fluid temperature Tm = 120°C
Factor for brought-in heat F = 0.2
Temperature class T4
Tü = Over-temperature
Ta = Ambient temperature of limit switch
In accordance with the tables in the PTB 99 ATEX 2219 X EC Type Examination Certificate, the SJ 3,5-... N... inductive sensor must
be operated in the T5 temperature class with an intrinsically safe circuit that does not exceed the maximum values of the Type 3
circuit.
When using the device in hazardous areas, follow the applicable national installation rules.
Example for calculating the max. fluid temperature based on the max. ambient temperature for the built-in sensor Type ES
for DN 15/25.
Ta = 70°C
T
= 60°C
amb
F = 0.2
TambTa
−
Tm °=°+
= 11060
Tamb
F
II 2GD c
Reg. No.: BVS 03 ATEX H/B 112
Tech. File Ref. 03-02 X
version
= 40°C
amb
CCCTambTmTü
8040120
=+
6070
2,0
CCCTambFTüTa
°=°+°=+=
56402,0*80*
CC
°−°
Factor for instruments with the
indicator on disctance
CC
10.1.5.2.1 Marking for the device with built in SJ 3,5...N... limit switch
PTB 99 ATEX 2219 X
II 2G EEx ia IIC T6
ZELM 03 ATEX 0128 X
II 1D Ex iaD 20 T108°C
10.1.5.2.2 Marking for the device with built in electric transmitter ES
DMT 00 ATEX 075
II2G Ex ia IIC T6
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BGF Installation and Operating Instructions
10.1.5.3 Atmospheric conditions
In accordance with EN 1127, a “potentially explosive atmosphere“ is defined as a mixture of air and combustible gases, vapour, mist
or dust under atmospheric conditions. Such conditions are defined in EN 13463-1, para. 1, with values Tatm = -20 °C to +60 °C and
Patm = 0.8 to 1.1 bar. Outside this range, safety parameters for most ignition sources are not available.
Usually, variable-area flow meters operate under operating conditions outside the atmospheric conditions of 0.8 to 1.1 bar.
Irrespective of the zone classification –safety parameters of explosion protection – are basically not applicable to the inside of the
measuring tube.
10.1.5.4 Earthing of the instrument
In variable-area flow meters, in principal it is possible that through the flow of non-conductive liquids a charge separation occur
inside the measuring tube. A dissipation of such charge carriers from the metal flow tube through permanent ground connection
must be ensured.
If grounding cannot be made via the process connections ( e.g. on plastic process connections or undefined connections), the flow
meter must be connected to the local grounding cable. potential via a separate ground cable .
Therefore operation with combustible products is only allowed if a potentially explosive air mixture is not formed inside
the flow meter. Where this condition are not met, the operator will need to assess the ignition hazard in each individual
case and give due consideration to existing parameters (e.g. pressure, temperature, process product, materials of
construction for the measuring tube).
10.2 Ambient conditions
10.2.1 Ambient temperature ranges
Without electrical accessories:
-40°C to +80°C
With limit switches:
-40 °C to +65°C
With ES signal output:
-40°C to +70°C
For the hazardous area version, take note of the maximum ambient temperatures depending on the temperature class as specified
on the Type Examination Certificate.
10.2.2 Storage temperature
The storage temperatures are identical to the ambient temperature ranges.
10.2.3 Climatic category
Weather-protected and/or unheated locations, class C according to IEC 654 Part 1
10.2.4 Degree of protection
IP 65 (Aluminum indicator unit)
IP 67 (Stainless steel indicator unit)
10.2.5 Shock resistance/vibration resistance
The meter should be protected from extreme shocks and vibrations, which could cause damage.
10.2.6 Electromagnetic compatibility
EN 61000-6-2:2011 Störfestigkeit Industriebereich / immunity industrial environment
EN 61000-6-3:2011 Störaussendung Wohnbereich / emission residential, commercial
EN 55011:2011 Gruppe 1, Klasse B , Funkstörungen / Group 1 Class B , ISM ratio-frequency equipment
EN61326-1:2013 EMV-Anforderungen / EMC requirements
NAMUR recommendation NE 21
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Heinri
chs Messtechnik
BGF Installation and Operating Instructions
Model
Fitting
Measuring body
Fluid-
10.3 Fluid conditions
10.3.1 Fluid temperature ranges
BGF-S st.st. st.st. -40°C up to 200°C
BGF-S st.st. PTFE -20°C up to 125°C
BGF-S st.st. PPH 0°C up to 80°C
BGF-P st.st./PTFE PTFE -20°C up to 125°C
The effect of the fluid temperature on the indicator unit and its built-in components must be considered. A pulled-forward indicator
unit is necessary if the fluid temperature rises above 200°C.
10.3.2 Diagrams: Max. ambient temperature based on the fluid temperature for the ES
Material
Material
Temperature
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