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한국의 KOBOLD Instruments Inc • 1801 Parkway View Drive • 15205 Pittsburgh, PA • Tel: +1 412 788 2830 • E-mail: Please activate JavaScript • visit koboldusa.com
Full Metal Variable Area Flow Meter / Counter BGF
For horizontal and vertical mounting
Measuring / switching range:
10 - 100 ... 6000 - 60 000 l/h water
0.3 - 3.0 ...110 -1100 Nm³/h air
Connection: flange DN15 ... DN100, ANSI ¾ ... 4"
Material: stainless steel 1.4404, option PTFE-lining
pmax: PN40 (16) bar, on request max. PN600 bar
Temperature range: -40 ... +200°C (-40 ... +350°C on request)
Accuracy: ±2 % of full scale
Options: contacts, analogue output, totalizer, Hart®, Profibus® PA, ATEX
Datasheet
Operating Instructions
Miscellaneous
Approvals
IECEx BVS 16.0072
Electronic transmitter type ES, ES-PPA or ES-FF
Ex ia IIC T6 Gb
Description
Inside the flow tube, there is a star guided float which works towards a spring. An annular gap is produced between the coneshaped 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 significant for the measurements in case of vertical installation.
Each position of the magnet holder corresponds to a flow value measured during calibration, which is transferred to a scale. The BGF flowmeter 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 encapsulated 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.
Other Members of the KOBOLD group
