General
Measuring principle Ultrasonic time difference
correlation principle and doppler
Flow velocity range
0.01...25m/s
0.025 cm/s
Resolution
0.15 % of measured value
Repeatibility ± 0.015 m/s Volume flow
Accuracy
± 1 ... 3 % of measured value
depending on application,
±0.5 % of measured value withprocess 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
Portable
Degree of protection IP 54 according EN 60529
Operating temperature -10...60 ºC(14...140 ºF)
Housing material Aluminium, powder coated
Flow channels 2
Power supply Internal rechargeable battery
6 V/4 Ah or external power
supply 9...15V DC
Operating time >14 h with fully charged battery
Display 2 x 16 digit LCD, dot matrix,
backlit
Dimensions H 118 x W 276 x D 310mm
(with handle)
Power consumption < 2.5 W in measurement mode
Signal damping 0...60 s, configurable
Response time 1 s, 70 ms optional
Measuring cycle 100 ... 1000 Hz, single channel
Calculation functions Average/difference/sum

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
Heat flow W. kW, MW (only with heat
quantity measurement option)
Heat quantity J. kJ, MJ (only with heat quantity measurement option)

Internal data logger
Storage capacity approx. 27,000 (optional
> 100,000) measuring values
Logging data All measured and totalised
values, parameter sets

Communication
Serial interface RS 232
Data
Instantaneous measured value,
parameter set and configuration,
logged data

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
Process inputs

Galvanically isolated from main
electronics
Temperature PT 100, four-wire circuit,
measuring range - 50...400 ºC
Current 0...20mA; Ri=50 ohm
Voltage 0...1 V; Ri = 1 Megaohm
Process outputs Galvanically isolated from main electronics
Current 0/4... 20 mA; passive (Uext< 24 V)
or active (Rext < 500 ohm)
Voltage 0...1 V or 0...10V, Ri=500 ohm
Frequency 0...1 kHz or 0 10 kHz; (OC)
Digital (pulse, status) 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 M2N, M2E
Rated (possible)
diameter range

Dimensions (50) 100...6500 mm
60 x 30 x 34 mm
Material Stainless steel
Temperature range Type M2N:
-30 ... 130 ºC (-22 ... 266 ºF)
TypeM2E:
-30 ... 200ºC (-22 ... 392 ºF), for
short periods up to 300 ºC (572 ºF)
Degree of protection IP 65 acc. EN 60529, IP 68 optional

Type Q3N, Q3E
Rated (possible)
diameter range

Dimensions (10) 25...400 (1000) mm
Material 43x18x22mm
Temperature range Stainless steel
Type Q3N:
-30...130 ºC (-22...266 ºF)
Type Q3E:
-30...200 ºC (-22...392 ºF),
for short periods up to
Degree of protection 300 ºC (572 ºF)
IP 65 acc. EN 60529, IP 68 optional

Special Clamp-on sensors
Type S2N For very small pipe
diameters 6 ... 40 (100) mm
Other types On request

Wall thickness measurement
Measuring range 1.0...200 mm
Resolution
0.01 mm
Linearity 0.1 mm
Temperature range Standard version -20 ... 60 °C
High temperature version
0 ... 200 °C, for short periods up to 540 °C

Accessories
-External power supply 230 V, 50Hz/12 V, 1.2 A; IP 30
-Car power adapter 12 V, 2 A
-Leather carving case 330 x 340 x 220 mm
-Cable extension 3 m, 5 m, 10 m or 20 m
-Sensor positioning rail for sensors type Q3, stainless steel V2A
-External printer, ink jet 192 dpi