Options guide Electromagnetic flowmeters M9xx
Ordering codes Model Description M 910 -V0 0 0 0 DN50 PN16 Example Sensor M Basic Ex Ex certified (remote version only) Transmitter 910E Economic version 910 Basic version 920 High accuracy version (legacy) 921 High accuracy version 930 Battery powered version Liner -V0 Hard rubber -V2 PTFE Electrodes 0 CrNi steel 1 Hastelloy C276 2 Tantalum Power supply 0 115V/230V AC or 38 Ah battery 1 12V DC or 76 Ah battery 2 24V DC 3 48V DC Construction 0 Compact version 1 Remote version Flanges DN DIN2501 + diameter in mm ANSI ANSI B16.5 + inch diameter JIS JIS B2220 + diameter in mm sanitary DIN11851 + diameter in mm Pressure rating PN Metric: 16 40 bar @ DN<200 10 25 bar @ DN 200 Order example Ex910E-V2121 DN40 PN25 PSI K Imperial: 150 PSI JIS: 5K or 10K Sensor: Ex certified Liner: PTFE Power supply: 24 V DC Flanges: metric DIN2501, 40 mm Transmitter: 910E Electrodes: hastelloy C276 Construction: remote version Pressure rating: 25 bar
Sensor selection Compact protection IP67 PN10 PN40 Remote sensor and convertor connected by cable maximum cable length 60m sensor protection IP68 convertor protection IP67 PN10 PN 40 Remote Ex same layout as remote version for potentially explosive atmosphere Zone II, 3G Ex na IIC T5/T6 Gc PN10 PN25
Diameter selection The choice of flow rate for an electromagnetic flowmeters depends on the diameter of the sensor. The higher pipe diameter, the higher flow rate can be measured. A determining parameter for flow rates is maximum velocity of the liquid. Maximum velocity is the speed, where the flow of liquid inside pipe is still laminar. In M910 it is limited to 10m/s (with 125% overload). Speed over 10 m/s is usually too high for industrial applications. One should select diameter where the expected flow rate is between Q5% and Q50%. Flow rates [ l/s ] Flow rates [ m3/h ] DN Q 0.3% Q 1% Q 5% Q N Q 50% Q 100% Q MAX Q 0.3% Q 1% Q 5% Q N Q 50% Q 100% Q MAX 15 0,005 0,02 0,09 0,50 0,88 1,77 2,21 0,01 0,06 0,32 2,00 3,18 6,36 7,95 20 0,009 0,03 0,16 0,90 1,57 3,14 3,93 0,03 0,11 0,57 3,20 5,65 11,3 14,1 25 0,015 0,05 0,25 1,40 2,45 4,91 6,14 0,05 4 0,18 0,88 5,00 8,84 17,6 1 22,0 4 32 0,024 0,08 0,40 2,20 4,02 8,04 10,0 0,08 3 0,3 1,5 8,00 14,5 29,0 7 36,2 9 40 0,04 0,1 0,6 4,0 6,3 12,6 15,7 5 0,14 7 0,5 2,3 13,0 22,6 45,2 56,6 50 0,06 0,2 1,0 6,0 9,8 19,6 24,5 0,21 0,7 3,5 20,0 35,3 70,7 88,4 65 0,10 0,3 1,7 9,0 16,6 33,2 41,5 0,36 1,2 6,0 35,0 59,7 119, 149, 80 0,15 0,5 2,5 14,0 25,1 50,3 62,8 0,54 1,8 9,0 50,0 90,5 181, 5 226, 3 100 0,24 0,8 3,9 20,0 39,3 78,5 98,2 0,85 3 14 80 141 283 0 353 2 125 0,4 1 6 30,0 61 123 153 1,3 4 22 150 221 442 552 150 0,5 2 9 50,0 88 177 221 1,9 6 32 200 318 636 795 200 0,9 3 16 100 157 314 393 3,4 11 57 300 565 1131 1414 250 1,5 5 25 150 245 491 614 5,3 18 88 500 884 1767 2209 300 2,1 7 35 200 353 707 884 7,6 25 127 800 1272 2545 3181 350 2,9 10 48 300 481 962 1203 10 35 173 1000 1732 3464 4330 400 3,8 13 63 400 628 1257 1571 14 45 226 1300 2262 4524 5655 500 5,9 20 98 600 982 1963 2454 21 71 353 2000 3534 7069 8836 600 8,5 28 141 800 1414 2827 3534 31 102 509 3000 5089 1017 1272 700 12 38 192 1000 1924 3848 4811 42 139 693 4000 6927 1385 9 1731 3 800 15 50 251 1200 2513 5027 6283 54 181 905 5000 9048 1809 4 2262 8 Preferred range Preferred range 6 0 Q 0.3% Q 1% Q 5% Q N Q 50% Q 100% Q MAX - M920, M921 minimum applicable flow rate (minimum flow rate with guaranteed accuracy) - M910, M930 minimum applicable flow rate (minimum flow rate with guaranteed accuracy) - recommended minimum flow rate (minimum flow rate with best accuracy) - recommended nominal flow rate (expected working flow rate) - recommended maximum flow rate (maximum flow rate for industrial use) - maximum applicable flow rate (maximum flow rate with guaranteed accuracy) - maximum applicable overload (Q 125%) (flowmeters is still measuring)
Accessories & Options Grounding rings Electromagnetic flow meters measure very low voltages so any electromagnetic noise in measured liquid can lead to wrong readouts. Grounding rings can help you avoid this, particularly in systems with plastic or concrete pipes. The rings go between sensor flange and pipe flange like shown. Compact / Remote conversion set Remote set is for conversion of M9xx flow meters from compact to remote version, compact set does the opposite. Sets contain all parts and description how to convert the flowmeter. Spare sealing compound Re-enterable insulating and sealing compound is used for remote version to reach the protection IP67 in transmitter and IP68 in sensor. One bag is included in every M9xx remote version delivery. Fill both sensor and transmitter terminal boxes with connected wires for the best results. M921 wall mounting options M921 s cubic shape allows for easier external surface mounting of remote version transmitters. There are 5 mounting options: None (default) Mounting brackets (left) option 921-10 DIN60715 rails (right) o TH 15 rail option 921-11 o G 32 rail option 921-12 o TH 35 rail option 921-13
Software FlowAssistant Remote control of M9xx series Save and recall instrument setting Easy calibration Service functions Password protection Connection via RS232 or RS485 Windows 2000/XP/Vista/7/8/10 Flowmeter - units - resolution - low flow cut-off - real time clock - temperature alarm Input / Output - current loop 20mA - frequency output - pulse output - status output - digital input General - nominal diameter - nominal flowrate - serial number - power supply - save/restore settings Calibration - 2...4 calibration points - calibration curve - calibration constants Service - internal voltages - internal temperature - last errors Main - flow rate - volume - batch - min./max. values Data logger Charts printing