mounted via flange insertion type on oppo- site (with guide rings) ?3a to 100a note 1) guide ring : a ring-shaped guide used for centering the sensor when a wafer type is mounted on the piping. note 2) flange with meter size 3a or 6a can be used for 15a. or flange mounting ?15a to 300a 0 to 2000kpa or flange operating pressure, whichever is lower. see the following table for the full scale of measurable flow rate. general-use industrial water, waste water, and other liquids with conductivity of more than 5 s/cm. wafer type or flange type ?mounting method : ?fluid pressure : ?meter size and measurement range detector ?measurement item : ?structure : data sheet fme1, 2 e seriese electromagnetic flowmeter (integral type) features specifications note 3) meter size 3a and 6a : wafer type only note 4) meter size 150a or more : flange type only 3a note 3) 0 to 0.012 0 to 0.24 6a note 3) 0 to 0.06 0 to 1.2 15a 0 to 0.3 0 to 6.0 25a 0 to 0.6 0 to 12.0 40a 0 to 1.8 0 to 36.0 50a 0 to 3.0 0 to 60.0 80a 0 to 9.0 0 to 180.0 100a 0 to 12.0 0 to 240.0 150a note 4) 0 to 30.0 0 to 600.0 200a note 4) 0 to 54.0 0 to 1080 250a note 4) 0 to 90.0 0 to 1800 300a note 4) 0 to 120.0 0 to 2400 meter size min.measurement range [m 3 /h] max. measurement range [m 3 /h] the electromagnetic flowmeter is an instrument to measure the volumetric flow rate of liquid simply by applying a mag- netic field from the outside utilizing the fact that an electric conductor which crosses a magnetic field at a certain velocity causes voltage to be induced in proportion to the velocity, which is known as faraday? law. this flowmeter is designed with the latest electronics tech- nology, realizing a compact and light-weight structure and measurement with high accuracy. 1. high accuracy when conductivity is above 5 s/cm, flow rate of liquid can be measured regardless of density and viscosity. the measurement accuracy is as high as 0.6% of rate. 2. free power supply the flowmeter operates on power supply 100 to 230v ac, 50/60hz. 3. grounding electrode use of the grounding electrode of hasteroy c in the flow- meter allows installation without an earth ring. 4. change of settings. the setting of various parameters can be changed from the outside of the case cover. application of the supplied magnetic stick to the outside glass surface enables the setting to change without opening the case cover. 5. stable measurement of flow rate a digital filter for pulsating or noisy flow signal, flow rate output low cut, and damping function allows flow rate measurement to be stabilized. 6. self-diagnosis function since self-diagnosis function is provided for empty detec- tion, trouble, and maloperation, the flowmeter can be used with safety. 7. simultaneous display of instantaneous flow and total flow 2-stage display with lcd backlight which is visible in the dark. date EDS6-119 aug.3, 2001
2 fme1, 2 conveter input/output signal : pulse output : span setting : flow direction change : flow display : total display : ?5 to +130?c (pfa, tfe lining) fault diagnosis function : zero point adjustment : low cut : 0% signal lock : filter : empty detection : flow switch : dumping time constant : density setting : converter case : wiring connection port : finish color : protection class : grounding : various faults can be diagnosed by hard- ware check and process check. zero point is automatically calibrated with key operation. 0 to 10% fs settable momentary output can be cut to 0% at flow rate below the set cutoff point. note) output low cut and total low cut are set at the same value. display and output can be locked to 0% with status input. a digital filter is included in the converter especially for pulsating or noisy flow sig- nals. absence of liquid is detected and status signal is outputted only when diameter is more than 10a and conductivity is more than 20 s/cm. 0 to 130% fs status signal is outputted by setting high/ low limit flow. 1 to 99.999 sec available from 0.01 to 5.00g/cm 3 , and the weight of the fluid can also be indicated. aluminum alloy g 1 /2 (with water-proof gland) silver, lid ....beige ip67 d-class grounding (100 ? or less) current output; 4 to 20ma dc load rasistance 0 to 600 ? pulse output; open-collector capacity; 16 to 30v dc, 0.22a or less on voltage; 2v or less max. 5khz status output; open-collector capacity: 16 to 30v dc, 0.22a or less on voltage; 2v or less status input; voltage input capacity: 16 to 30v dc internal resistance: 2k ? total pulses are outputted by setting total constant. pulse width 0.1 to 2000ms is settable. flow rate full scale(fs) can be set by set- ting flow rate unit and flow rate value. display cubic volume unit ; m 3 , l, ml display time unit ; /d, /h, /min, /s flow direction can be reversed in flow di- rection mode. real unit flow display, % display or user unit display is possible. max 6 disits. totaled volume can be displayed by set- ting the unit of cubic volume. displayed cubic volume unit ; m 3 , l, ml total value is held when power failure occurs. power consumption : operating condition : 14va or less ambient temperature; ?0 to 60?c (detector : pfa, tfe lining) ambient humidity; 95% rh or less power voltage; 100 to 230v ac +10%, -15% power frequency; 50/60hz (note) if ambient humidity exceeds 95% rh, se- lect a submersible type in fmb model. ambient temperature fluid temperature allowable range [ ? c] [ ? c] ambient tempertaure 130 0 50 -20 -25 10 25 60 fluid temperature material : standard performance accuracy rating of display and pulse output : note 1) materials of fluid wetted parts should be selected in consideration of erosion due to measuring fluid. refer to the table of material selection on the at- tached sheet. note 2) for earth ring attachments, see code symbols. note 3) flange type only lining tefron(pfa, tfe) signal electrode earth electrode earth ring note 2) fluid wetted parts note 1) hasteroy c-4 equivalent housing case flange note 3) aluminum alloy sus316 equivalent fluid temperature : flow velocity 0.7m/s or more 0.7m/s or less accuracy 0.5% of rate 100 % of rate qv : measuring flow velocity 0.0035 qv accuracy rating of analog output : flow velocity 0.7m/s or more 0.7m/s or less accuracy 0.6% of rate 100+0.1 % of rate qv : measuring flow velocity 0.0035 qv
3 length of straight pipe for installing the electromagnetic flowmeter the length of the up-stream/down-stream straight pipe of the flowmeter should be long enough to ensure accurate measure- ments. see below. note 1) d=diameter of measuring pipe. note 2) do not put any objects, which affect magnetic field, electromotive force and flow velocity profile, in the measuring pip e. note 3) use a straight pipe (2d to 3d) on the down-steam side, if the drift to the up-stream side is affected by installing valv es, etc. minimum length of straight pipe between up-stream/down-stream joints and flowmeter. note) "5d" with sluice valve fully open 1-1) upstream reducer pipe 1-2) upstream diffuser pipe 1-3) various upstream valves 1-4) upstream 90 bend 1-5) upstream t-pipe 2-1) downstream reducer pipe 2-2) downstream diffuser pipe 2-3) various downstream valves 2-4) downstream 90 bend 2-5) downstream t-pipe 5d flowing direction flowmeter flowing direction downstream straight pipe unnecessary downstream straight pipe unnecessary flowmeter 5d flowing direction flowmeter flowing direction flowmeter 10d note) flowing direction flowmeter 2 to 3d 2 to 3d 2 to 3d flowing direction flowmeter 5d flowing direction flowmeter flowing direction flowmeter 5d flowing direction flowing direction flowmeter flowmeter
4 fme1, 2 mounting posture of electromagnetic flowmeter the flowmeter can be installed vertically, horizontally, or at other angle. when installing, be sure to observe the following points. q the measuring pipe should always fill with fluid which flows in the piping. example of mounting posture position of electrode grounding connection air are apt to from. fluid may not fill up the pipe. good good fluid may not fill up the pipe. pump e s c. e n t. i n c. shift e s c. e n t. i n c. shift e s c. e n t. i n c. shift e s c. e n t. i n c. shift e s c. e n t. i n c. shift & |