Electromagnetic Flowmeter
BF
M921
BASI
58
Operation manual
7
Application information
7.1
Specifications
Nominal size
DN15 to DN800
Nominal pressure
PN10 to PN40
Flow range
0.03 to 12 m/s (0.01 to 6000 l/s) / (0.03 to 21000 m3/h)
Accuracy
0.25 % (0.5 to 12 m/s) of reading value
0.003 m/s (0.03 to 0.5 m/s)
Maximum media
temperature
80°C (176°F) for rubber liner
150°C (302°F) for PTFE liner in remote version
Medium minimum
electrical conductivity
5
S / cm
Ambient temperature
-20 to 70
C (-4 to 140
F)
Excitation coils
temperature
-20 to 150
C (-4 to 302
F)
Power supply
(nominal range, range,
flowmeter version)
85 V to 264 V AC (47-65 Hz)
12V DC (9 V to 18 V DC)
24V DC (18 V to 36 V DC
48V DC (36 V to 75 V DC)
•
BF
M921-Vxx0x
•
BF
M921-Vxx1x
•
BF
M921-Vxx2x
•
BF
M921-Vxx3x
Power consumption
12 VA
Liner
hard rubber
PTFE
Electrodes
CrNi stainless steel 1.4571
Hastelloy C276
Tantalum
Measuring tube
Stainless steel 1.4201, dimensions according to DIN 17457
Flange
Carbon steel 1.0402 or higher
Dimensions according to DIN2501 (=EN1092=BS 4504), ANSI B16.5, JIS B2220, Sanitary
DIN11851, flangeless wafer style
Protection category
Compact version: IP67
Remote version: sensor IP68, converter IP65 (optionally IP67)
Outputs
Frequency 0 to 12 kHz with programmable flowrate and function
Pulse 0 to 200 Hz with programmable volume, function and pulse width
Status (relay) output 110V/1A/30W with programmable function
Current loop 4 to 20 mA with programmable flowrate and function, error/alarm
function.
Input
PLC digital input with programmable function
Communication
USB/RS232, RS485 (Modbus)
Displayed values
Flowrate (m3/h, l/s, US.Gal/min, Imperial.Gal/min, user)
Volume (m3, l, US.Gal, Imperial.Gal, user)
Positive, total, negative and auxiliary (clearable, daily) volume
Control
Keyboard with 6 buttons, graphic display with backlight.
USB/RS232 and RS485
Other features
Test of: excitation coils, electronic unit
Diagnostic of internal temperature and power supply voltages
Internal temperature and power supply diagnostic
Real time clock with maintenance-free backup power source
Empty pipe indication
Datalogger 900000 records (programmable sample rate)
Registration of min. and max. flowrate including date and time