Options guide. Electromagnetic flowmeters. M9xx

Transcription

1 Options guide Electromagnetic flowmeters M9xx

2 Ordering codes Model Description M 910 -V 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 DIN diameter in mm ANSI ANSI B inch diameter JIS JIS B diameter in mm sanitary DIN diameter in mm Pressure rating PN Metric: DN< 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

3 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

4 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, ,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, ,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, ,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, ,24 0,8 3,9 20,0 39,3 78,5 98,2 0, , , , , , , , , , , , , , , , , 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)

5 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 DIN60715 rails (right) o TH 15 rail option o G 32 rail option o TH 35 rail option

6 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 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