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8/20/2019 bgf_da_01_en http://slidepdf.com/reader/full/bgfda01en 1/4 1 Full Metal Variable Area Flow Meter BGF • Flow measuring of liquids and gas • Horizontal and vertical mounting possible • Robust design with measuring ring and conical-shaped float • Linear characteristic thanks to op- timized float • Clear 90°-scale • Transmitter with HART or PROFI- BUS-PA as option Function Inside the flow tube, there is a star guided float which works towards a spring. An annular gap is produced between the cone-shaped magnet system and the meter ring in case of flows other than zero. The position of the magnet system depends on the resulting force of all forces acting upon it. These forces comprise the flow force, a spring force acting opposite to the flow force, and the buoyancy and weight force signifi- cant for the measurements in case of verti- cal installation. Each position of the magnet holder corre- sponds to a flow value measured during calibration, which is transferred to a scale. The BGF flow meter consists of a meter tube with connections, a meter ring, and a conical magnet holder. By means of a magnet, the position of the magnet system is transferred to an encapsu- lated follow magnet, which has been fitted to a pointer axle. The position of a second annular follow magnet fitted on the pointer axle is transferred to the scale by means of the pointer. Application The BGF meter is suitable for flow mea- surement of liquid or gaseous products in pipes. The special advantage is that it can be used for all directions of flow. 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 oper- ating conditions. The devices are available with additional electrical equipment for process monitoring and control. • A large spectrum of wetted materials • Magneto-resistive signal transmis- sion • Special design for high-pressure and high-temperature applications • Excellent heat tracing technology (as option) • Double eddy current damping (as option)
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Full Metal Variable Area Flow Meter
BGF
• Flow measuring of liquids and gas
• Horizontal and vertical mountingpossible
• Robust design with measuring ringand conical-shaped float
• Linear characteristic thanks to op-timized float
• Clear 90°-scale
• Transmitter with HART or PROFI-BUS-PA as option
Function
Inside the flow tube, there is a star guidedfloat which works towards a spring. An annular gap is produced between thecone-shaped magnet system and the meterring in case of flows other than zero. Theposition of the magnet system depends on
the resulting force of all forces acting upon it.These forces comprise the flow force, aspring force acting opposite to the flow force,and the buoyancy and weight force signifi-cant for the measurements in case of verti-cal installation.Each position of the magnet holder corre-sponds to a flow value measured duringcalibration, which is transferred to a scale.The BGF flow meter consists of a meter tubewith connections, a meter ring, and a conicalmagnet holder.By means of a magnet, the position of the
magnet system is transferred to an encapsu-lated follow magnet, which has been fitted toa pointer axle. The position of a secondannular follow magnet fitted on the pointeraxle is transferred to the scale by means ofthe pointer.
Appl ication
The BGF meter is suitable for flow mea-surement of liquid or gaseous products inpipes.The special advantage is that it can beused for all directions of flow .It shows the current flow rate in volume ormass per unit in time.
Applications: flow measurement, dosing,monitoring, adjusting and control of liquidand gaseous products.The meter’s design makes it ideal forprocesses under difficult and adverse oper-ating conditions.
The devices are available with additionalelectrical equipment for process monitoringand control.
• A large spectrum of wetted materials
• Magneto-resistive signal transmis-sion
• Special design for high-pressureand high-temperature applications
• Excellent heat tracing technology(as option)
• Double eddy current damping (asoption)
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Technical data
SensorMaterials: 1.4404 (316 L) / 1.4571 (316 Ti), PTFE
other materials on request
Process connection: Flanges acc. EN 1092, ASME B16.5, DIN2512,JIS, NPT, screw pipe connection,special connections on request
Nominal pressure: PN 40, ASME Cl150 / 300 (standard) (BGF-S)PN 16, ASME Cl150 (standard) (BGF-P)higher pressure rates optionalmax. 600 bar
Process temperature: -40°C up to +350°C (BGF-S)-40°C up to +125°C (BGF-P)
Ambient temperature: -40°C up to +80°C
Ingress protection: IP 65 (EN60529)
CertificationExplosion protection: BVS 03 ATEX H/B 112
CE-Marking: Pressure Equipment Directive 97/23/EC
Ranges
RangeModel
S/HModel
P
DN15 H 10 - 100 l/h 5 - 50 l/h
I 16 - 160 l/h 7 - 70 l/h
J 25 - 250 l/h 10 - 100 l/h
K 40 - 400 l/h 16 - 160 l/h
L 60 - 600 l/h 25 - 250 l/h
DN25 M 100 - 1000 l/h 100 - 1000 l/h
N 160 - 1600 l/h 160 - 1600 l/h
P 250 - 2500 l/h 250 - 2500 l/h
Q 400 - 4000 l/h 400 - 4000 l/h
DN40 P 250 - 2500 l/h 250 - 2500 l/h
Q 400 - 4000 l/h 250 - 2500 l/h
R 600 - 6000 l/h 400 - 4000 l/h
S 1000 - 10000 l/h 1000 - 10000 l/h
DN50 Q 400 - 4000 l/h 400 - 4000 l/h
R 600 - 6000 l/h 600 - 6000 l/h
S 1000 - 10000 l/h 1000 - 10000 l/h
T 1600 - 16000l /h 1600 - 16000l /h
U 2500 - 25000l /h 2500 - 25000l /h
DN80 T 1600 - 16000 l/h 1600 - 16000 l/h
U 2500 - 25000 l/h 2500 - 25000 l/h
V 4000 - 40000 l/h 4000 - 40000 l/h Reference condition: according to IEC 770:
Water at 20°C
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Display Aluminum (stove-enameled)Stainless steel (as option)
Outputs inductive switch
inductive switch (safety design)microswitchothers on request
Ambient temperature: -40°C up to +80°C (without switch)-40°C up to +65°C (with switch)
TransmitterES with HART-protocolES with HART-protocol and 2 NAMUR-switchesES with HART-protocol and 1 NAMUR-switch / 1 pulse outputES with Profibus-PA
ES with HART-protocol and counter module
Power supply: 14 - 30 VDCOutput: passive, galvanically isolatedCurrency: 4-20 mABinary 1 and 2: Ui=30 V, Ii=20mA, Pi=100 mWInput Binary: Counter reset (only for ES with counter module)
Ambient temperature: -40°C up to +70°C
Ingress protection: IP 20 (EN60529)
AccuracyLiquid/Gas: ± 2% of upper range value
± 0,2% with transmitter (ES)
CertificationExplosion protection: DMT 00 ATEX E 075Type of protection: II 2G EEx ia IIC T6
CE-Marking: Explosion Protection Directive 94/9/EC
Electromagnetic compatibility: EMC-Directive 89/336/EECEN 61000-6-3:2001 (emissions residential environments)
EN 61000-6-2:1999 (immunity for industrial environments)EN 55011:1998+A1: 1999 Group 1, Class B (radio interference)EN 61000-4-2 to DIN EN 61000-4-6EN 61000-4-8EN 61000-4-11EN 61000-4-29EN 61326
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Dimensions(Example for horizontal design)
DN PN l . W. A (alumi num ) A (s tai nless steel)
15 40 26 74 100
25 40 32 77 10340 40 46 85 110
50 40 70 98 123
80 40 102 114 140
Display
Dimensional deviations:
* +100 mm with forward advanced display
Display: aluminum
Display: stainless steel
For further information see device description BGF_GB_XX_en.Subjects to change without notice.
Heinrichs Messtechnik GmbH
P. O. Box 600260 Robert-Perthel-Straße 9 Phone +49-221-49708-0 www.heinrichs.euD-50682 Cologne D-50739 Cologne Fax +49-221-49708-178 [email protected]
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