Magnetic flowmeters M910 / M910E / M920 - meatest.cz

Image sheet
Magnetic flowmeters
M910 / M910E / M920

Sensor selection
Compact
low cost version
• DN10 … DN800
• PN10 … PN40
• protection IP67
• liner:
hard rubber, PTFE
• electrodes:
stainless steel, hastelloy, tantalum, titanium
• connection:
DIN, ANSI, sanitary (DIN 11851)
Remote
basic version
• DN10 … DN800
• PN10 … PN40
• sensor and convertor connected by cable
• maximum length 60m
• sensor protection IP68
• convertor protection IP67
• liner:
hard rubber, PTFE
• electrodes:
stainless steel, hastelloy, tantalum, titanium
• connection:
DIN, ANSI, sanitary (DIN 11851)
Remote Ex
EX proof version
• for applications with explosive atmosphere
• 3G Ex nA T5 II
• PN10 … PN25
• other parameters as remote basic version

Converter selection
M910
M910E
basic version
• pipe and electronic selfdiagnostic
• programmable outputs:
4-20mA, frequency, pulse, state
• programmable input
• datalogger, RTC
• touch-less magnetic pointer
• keyboard
• protection IP67
• RS232, RS485
• accuracy 0.5%
• power supply 115/230Vac, 12/24/48 Vdc
low cost version
• programmable outputs:
4-20mA, frequency, pulse
• touch-less magnetic pointer
• protection IP67
• RS232
• accuracy 0.5%
• power supply 115/230Vac, 12/24/48 Vdc
M920
high accuracy version
• empty pipe detection
• temperature measurement
• pipe and electronic selfdiagnostic
• programmable outputs:
4-20mA, frequency, pulse, state (alarm)
• programmable input
• datalogger, RTC
• touch-less magnetic pointer
• keyboard
• protection IP67
• RS232, RS485 modbus
• accuracy 0.25%
• power supply 85-264Vac, 12/24/48 Vdc

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. Such diameter of pipe is usually selected, where expected flow rate is between
Q 5% and Q 50% .
In the table bellow applicable flow rates for various diameters is displayed in l/s and m 3 /hr.
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
10 0,003 0,01 0,04 0,20 0,39 0,79 0,98 0,008 0,03 0,14 0,80 1,41 2,83 3,53
15 0,005 0,02 0,09 0,50 0,88 1,77 2,21 0,019 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 0,034 0,11 0,57 3,20 5,65 11,31 14,14
25 0,015 0,05 0,25 1,40 2,45 4,91 6,14 0,053 0,18 0,88 5,00 8,84 17,67 22,09
32 0,024 0,08 0,40 2,20 4,02 8,04 10,05 0,087 0,3 1,5 8,00 14,5 29,0 36,2
40 0,04 0,1 0,6 4,0 6,3 12,6 15,7 0,14 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 59,7 119,5 149,3
80 0,15 0,5 2,5 14,0 25,1 50,3 62,8 0,54 1,8 9,0 50,0 90,5 181,0 226,2
100 0,24 0,8 3,9 20,0 39,3 78,5 98,2 0,85 3 14 80 141 283 353
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 1731
800 15 50 251 1200 2513 5027 6283 54 181 905 5000 9048 1809
Preferred range
Preferred range 6
2262
0
Q 0.3%
Q 1%
Q 5%
Q N
Q 50%
Q 100%
Q MAX
- M920 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)
A sensor diameter should be chosen to keep real flow rate between Q 5% and Q 50% , because in this
range the flowmeters has the best accuracy.

Accessories & Options
selection
Grounding rings
Principle of operation of electromagnetic
flowmeter requires the working liquid to
be conductive and grounded. To meet
this condition in systems with plastic
pipes grounding rings can be ordered.
The rings are inserted between sensor
flange and flange of the pipe and
electrically connected to ground.
Compact / Remote conversion set
Remote set is for conversion M-
910/910E/920 from compact to remote
version. Compact set is for conversion
M-910/910E/920 from remote to
compact version. 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 (IP68). One part is
standard part of delivery (remote version M-910/910E/920).
Terminal boxes (with connected wires) should be filled this
sealing compound.

Software
Flow920
• Standard part of delivery
• Save and recall instrument setting
• Easy calibration
• Service functions
• Password protection
• Connection via RS232 or RS485
Windows 2000/XP/Vista/7
Flow920 software is program for remote control of the flowmeter M-910/910E/920/930. With
the program configuration and calibration of the transmitter can be performed easily.
Flowmeter
Meter's configuration
- units
- resolution
- low flow cut-off
- real time clock
- temperature alarm
General
Information about
meter
- nominal diameter
- nominal flowrate
- serial number
- power supply
- save/restoresettings
Calibration
Meter's calibration
- 2...4 calibration
points
- calibration curve
- calibration constants
calculation
Input/Output
I/O configuration
- current loop 20mA
- frequency output
- pulse output
- status output
- digital input
Service
Service information
- internal voltages
- internal temperature
- last errors
Main
Basic information
- flow rate
- volume
- batch
- min./max. values
Data logger
Charts printing

Ordering information
Model Ordering code Description
M910 V 0 0 0 0 DN 50 PN16
Model
M910E
Low cost version
M910
Basic version
M920
High accuracy version
Liner
0 Hard rubber
1 Soft rubber
2 PTFE
Electrodes
0 CrNi steel
1 Hastelloy C276
2 Tantalum
Power supply
0 115V/230V, 50/60 Hz
1 12V DC
2 24V DC/AC, 50/60 Hz
3 48V DC/AC, 50/60 Hz
Construction
0 Compact version
1 Remote version
Flanges
DN
DIN
ANSI
ANSI
Diameter
50 10 ... 800mm (1/2 ... 32")
Pressure
PN16 10 ... 40bar (150 ... 300lb)
Ordering example
M910E-V2120 DN15 PN25
Liner: PTFE Electrodes: hastelloy C276
Power supply: 24 V DC/AC Construction: compact version
Nominal diameter: 15 mm Nominal pressure: 25 bar