ELECTROMAGNETIC FLOW METERS

Limesa meters | Electromagnetic Flow Meters | View PDF

FG4000 – Basic Information

The FG4000 electromagnetic flow meter is designed for a wide spectrum of industrial applications. An electromagnetic inductance principle is utilized to determine flow velocity. This allows measurement that excludes mechanical parts in the flow metering section thus eliminating pressure drop.

It is a high reliability instrument offering accurate metering of flows of liquids with long-term stability. The flow meter can further measure a wide range of flows while maintaining the accuracy, fast response to changes in flow, comfortable operation (using display and membrane keys), and, last but not least, user-friendly design (such as easy access to interface connectors).

Its central part is a sturdy aluminium casting whose design allows four different positions in a horizontal or vertical pipeline for convenient access to the stainless steel front panel with display and membrane keys. The advanced industrial design of the FG4000 line of flow meters meets stringent requirements on mechanical and chemical resistances enabling to use these instruments even under most difficult conditions. The flow meter is certified for enclosure rating IP67 while its high resistance against electromagnetic disturbance at the level of class 2 as specified in EN 14154 should be highlighted.

FG4000 Flow Meter characteristics:

sandwich or flanged sensor
compact or split desigń
suitable for food industry or drinking water applications (stainless steel design)
display to show quantities measured
instrument settings (flow conversion factor, communication type and rate, measurement dynamic parameters, and suchlike) using membrane keys or using software
replaceable sensors (each sensor has its calibration constants)
accessories – installation kit (carbon steel, stainless steel or custom)
Visikal management software
bidirectional flow measurement (separate counter for each flow direction)
self-diagnostics – instrument status indicated on display
flow monitoring using up to five flow accumulators
monitoring maximum flow over a time interval
connection of up to two other flow meters with pulse outputs
optional thermometer module to show temperatures on display
archiving of measurement data with date time stamps for up to one year in non-volatile memory
recording of operation time
recording of power failures and error conditions

FG4000 Flow Meter specifications:

measuring range:	1:500,
accuracy:	±0.5% in range from Qmin do Qmax ± 0.003 m/s in range from Qmin do Qmax
liner:	PTFE – standard for sandwich sensors, hard rubber / PTFE for flanged sensors
electrode material:	316L stainless steel, Hastelloy, platinum, tantalum, titanium
nominal pressure (PN):	25 bar – sandwich, 10–40 bar (150lb, 300lb) – flanged design
minimum conductivity of liquid under measurement:	5 ųS/cm,
power supply:	standard: 230 V (+10;-15%) / 50–60 Hz, optional: 120 V (+10;-15%) / 50–60 Hz or 24 V DC,
input power:	10 VA,
enclosure rating:	IP 67
protection class specified in IEC536:	I
range of temperatures of liquid under measurement:	0-150 °C (PTFE), 0-90 °C (hard rubber),
range of ambient temperatures:	0-70 °C, recommended 5-55 °C.
communication modules:	RS485, RS422, RS232, MBUS, ...,
pulse output:	adjustable (0.001–1000 imp/dm3),
analogue output:	4-20 mA, 0-10 V

FG 4000	F type flanged sensors
	W type sandwich sensors
	W-ss type sandwich sensors
DN	10	15	20	25	32	40	50	65	80	100	125	150	200	250	300	350	400	450	500	600
Q0 (m3/h)	0,01	0,02	0,03	0,04	0,07	0,11	0,17	0,29	0,43	0,68	1,06	1,53	2,7	4,2	6,1	8,3	10,9	13,7	17,0	24,4
Q1 (m3/h)	0,08	0,19	0,34	0,53	0,87	1,36	2,12	3,58	5,43	8,48	13,2	19,1	34,0	53,0	76,0	104	136	172	212	305
Q3 (m3/h)	3,39	7,63	13,6	21,2	34,7	54,3	84,8	143	217	339	530	763	1360	2120	3050	4160	5431	6867	8480	12200
k(Imp/dm3)	1600	700	400	200	150	100	60	35	25	15	10	7	4	2,5	1,6	1,25	1	0,75	0,5	0,4

Legend:

DN - nominal diameter
Q0 - initial flow
Q1 - minimum flow
Q3 - maximum flow
k - maximum conversion constant