General
| Measuring principle |
Ultrasonic time difference corre-lation principle
and doppler |
Flow
velocity range
|
0.01...25m/s
|
Resolution
|
0.025 cm/s |
| Repeatibility |
0.15 % of measured value ±
0.015 m/s |
Accuracy
|
Volume flow
± 1 ... 3 % of measured value
depending on application,
± 0.5 % of measured value with process calibration
Flow velocity ± 0.5 % of measured value
|
Turn
down ratio
|
1/200 |
Gaseous
and solid
content of medium |
< 10
% of volume |
Flow
transmitter
Enclosure
|
Field transmitter housing |
| Degree
of protection |
IP 67 according EN 60529 |
| Operating
temperature |
-10...55ºC(14...140 ºF) |
| Housing
material |
Aluminium, powder coated |
| Flow
channels |
2 |
| Power
supply |
100...240V AC/ 9...18V DC/
18...36V DC/ 36...72V DC |
| Display |
2 x 16 digit LCD, dot matrix,
backlit, 2 X status LED
|
| Dimensions |
H 213 x W 129 x D 170mm
(without cable glands and
supports) |
| Keyboard |
5 keys, external access via
magnet |
| Power
consumption |
< 15 W |
| Signal
damping |
0...60 s |
| Response
time |
1 s, 70 ms optional |
| Measuring
cycle |
100 ... 1000 Hz, single channel |
| Calculation
functions |
Average/difference/sum |
Protection concept
|
Flameproof (d), intrinsic safety
(i), increased safety (e) |
| Certification code |
Flameproof (d), intrinsic safety
(i), increased safety (e) |
Quantity
and units of measurement
| Volumetric
flow rate |
m³/h, m³/min, m³/s,
l/in, l/min, l/s,
USgph, bls/d (barrels per day) |
| Flow
velocity |
m/s, inch/s |
| Mass
flow rate |
g/s, t/h, kg/in, kg/min |
| Volume |
m³, l, gal (gallons)
|
| Mass |
g,kg,t |
Communication
Software
Data
| Functionality |
Downloading of measured
values/parameter set, graphical
presentation, list format, export
to third party software, on-line
transfer of measured data |
| Operating
systems |
Windows™ 3.11, 95, 98, NT |
|
| Current |
0/4... 20 mA; passive (Uext< 24
V)
or active (Rext < 500 ohm) |
| Current |
0/4... 20 mA; passive
(Uext< 24 V)
or active (Rext < 500 ohm) |
| Frequency |
0...1 kHz or 0 10 kHz; (OC) |
| Digital
(pulse, status) |
0...1 kHz or 0 10 kHz; (OC)
2 X totaliser value 0.01 1000 / unit;
width 80...1000 ms; (OC/ Reed)
Reed = Reed-NO contact
(300 V /0.5 A)
OC = Open-Collector |
Clamp-on
sensors
Type Q4N-Ex, M4N-EX (for use in hazardous areas
zone 1 and 2) Rated (possible) diameter
range
|
Type Q4N-Ex
(10) 25...400 (1000) mm
Type M4N-Ex
(50)100...3000 mm |
Dimensions
|
(50)
100...6500 mm
60 x 30 x 34 mm |
| Material |
Stainless steel |
| Temperature
range |
-20...120 ºC |
| Degree
of protection |
IP 65 acc. EN 60529, IP 68 optional |
| Protection concept |
Encapsulation
|
| Certification code |
EEx m II T4-T6
IBExU 98 ATEX 1012X |
|