KATflow 230, Portable Clamp-On Ultrasonic Flowmeter
POWERFUL, PRACTICAL, PORTABLE
The KATflow 230 is easily portable but incorporates an advanced specification for situations which require comprehensive measurement features coupled with easy operation. The flowmeter has two measurement channels, which allow it to monitor two pipes simul-taneously or to improve accuracy in non-ideal conditions. The KATflow 230 can also be supplied with a vari- ety of options to meet the most diverse application requirements.
THE TECHNOLOGY BEHIND THE MEASUREMENT
The KATflow non-invasive flowmeters work on the transit time ultrasonic principle. This involves sending and receiving ultrasonic pulses from a pair of sensors and examining the time difference in the signal. Katronic uses clamp-on transducers that are mounted externally on the surface of the pipe and which generate pulses that pass through the pipe wall. The flowing liquid within causes time differences in the ultrasonic signals, which are then evaluated by the flowmeter to produce an accurate flow measurement.
The key principle of the method applied is that sound waves travelling with the flow will move faster than those travelling against it. The difference in the transit time of these signals is proportional to the flow velocity of the liquid and consequently the flow rate.
Since elements such as flow profile, type of liquid and pipe material will have an effect on the measurement, the flowmeter compensates for and adapts to changes in the medium in order to provide reliable results. The instruments can be used in a variety of locations, from measurements on submarines to installations on systems destined for use in space, and on process flu ids as different as purified water in the pharmaceutical sector and toxic chemical effluent. The flowmeters will operate on various pipe materials and diameters over a range of 10 mm to 6,500 mm.
SPECIFICATION
• Pipe diameter range 10 mm to 6,500 mm
• Temperature range for sensors : -30 °C to +250 °C (-22 °F to +482 °F)
• Robust IP 65 aluminium enclosure
• Selectable three-line LCD display and fu ll keypad
• Battery life up to 24 hours with easily replaceable battery cartridge
• Measurement of two flows simultaneously.
FEATURES
• Dual flow monitoring with sum, average, difference and maximum calculations
• PT100 inputs for heat quantity (thermal energy) measurement
• Process output options including current, open-collector, relay
• Large data logger and software for sampling and data transfer
• Stainless steel sensors, cable and connectors as standard.
ACCESSORIES
• Available with crush-proof IP 67 transport case or lightweight soft case
• Expansion box for additional input or output configuration and special solutions
• Optional pipe wall thickness gauge
• Special waterproof solution available for harsh environmental conditions
• KATdata+ software for data evaluation.
APPLICATIONS
• Heating, Ventilation and Air Conditioning (HVAC) measurements
• Large pipe measurement with two sensor pairs in ‘X’ configuration
• Temporary replacement of conventional in-line flowmeters
• Building surveys on large facilities
• Efficiency monitoring of heat exchangers.
FLOWMETER
Performance
| Measurement principle | Ultrasonic transit-time difference |
| Flow velocity range | 0.01 … 25 m/s |
| Resolution | 0.25 mm/s |
| Repeatability | 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 (mean): | |
| ±0.5 % of measured value | |
| Turn down ratio | 1/100 (equivalent to 0.25 … 25 m/s) |
| Measurement rate | 100 Hz (standard) |
| Response time | 1 s |
| Damping of displayed value | 0 … 99 s (selectable by user) |
| Gaseous and solid content of liquid media | < 10 % of volume |
General
| Enclosure type | Portable |
| Degree of protection | IP 65 according to EN 60529 |
| Operating temperature | -10 … +60 °C (+14 … +140 °F) |
| Housing material | Extruded aluminium, AI MG Si 0.5, lids die-cast zinc alloy GD-Zn AL 4 CU 1 |
| Measurement channels | 1 or 2 |
| Calculation functions | Average, difference, sum, maximum (dual-channel use only) |
| Power supply | Internal rechargeable batteries: 8 x NiMH AA 2850 mAh |
| Power adapter: 100 … 240 V AC input, 9 V DC output | |
| External battery pack: 12 V 105 Ah, 25 kg (optional) | |
| Operating time | Up to 24 h with fu lly charged internal batteries |
| Display | LCD graphic display, 128 x 64 dots, backlit |
| Dimensions | 266 (h) x 168 (w) x 37 (d) mm |
| Weight | Approx. 2.0 kg |
| Power consumption | < 5 W |
| Operating languages | English, French, German, Dutch, Spanish, I talian, Russian, Czech, Turkish, Romanian (others on request) |
Communication
| Type | RS 232 , USB cable (optional) |
| Transmitted data | Measured and totalised value, parameter set and configuration, logged data |
Internal Data Logger
| Storage capacity | Approx. 30,000 measurements (each comprising up to 10 selectable measurement units), logger size 5 MB |
| Approx. 100,000 measurements (each comprising up to 10 selectable measurement units), logger size 16 MB | |
| Logged data | All measured and totalised values, parameter sets |
KATdata software
| Functionality | Download of measured values/parameter sets, graphical presentation, list format, export to third party software, online transfer of measured data |
| Operating systems | Windows 8, 7, Vista, XP, NT, 2000 Linux |
Quantity and units of measurement
| Volumetric flow rate | m3/h, m3/min, m3/s, l/h, l/min, l/s |
| USgal/h (US gallons per hour), USgal/min, USgal/s bbl/d (barrels per day), bbl/h, bbl/min | |
| Flow velocity | m/s, ft/s, inch/s |
| Mass flow rate | g/s, t/h, kg/h, kg/min |
| Volume | m3, l, gal (US gallons), bbl |
| Mass | g, kg, t |
| Heat flow | W, kW, MW (with heat quantity measurement option) |
| Heat quantity | J, kJ, kW/h (with heat quantity measurement option) |
| Temperature | °C (with heat quantity measurement option) |
Process inputs (galvanically isolated)
| Temperature | PT100 (clamp-on sensors), three- or four-wire circuit, measurement range: -30 … +250 °C (-22 … +482 °F), resolution: 0.1 K, accuracy: ±0.2 K (two or four inputs available) |
Proceess outputs*(galvanically isolated)
| Current | 0/4 … 20 mA active (RLoad < 500 ?), 16 bit resolution, U = 30 V, accuracy: 0.1 % |
| Digital open-collector | Value: 0.01 … 1000/unit, width: 1 … 990 ms, U = 24 V, I max = 4 mA |
| Digital relay | Form A SPST (NO), U = 48 V, I max = 250 mA |
TRANSDUCERS
| Pipe diameter range | 50 … 3,000 mm for type K1N/E |
| 50 … 6,500 mm for type K1L | |
| Dimensions of sensor heads | 60 (h) x 30 (w) x 34 (d) mm |
| Material of sensor heads | Stainless steel |
| Material of cable conduits | Type K1L : PVC |
| Type K1N/E: Stainless steel | |
| Temperature range | Type K1L: -30 … +80 °C (-22 … +176 °F) |
| Type K1N : -30 … +130 °C (-22 … +266 °F) | |
| Type K1E : -30 … +250 °C (-22 … +482 °F) | |
| (for short periods up to +300 °C (+572°F)) | |
| Degree of protection | IP 66 according to EN 60529 (I P 67 and IP 68 on request) |
| Standard cable lengths | Type K1L: 5.0 m |
| Type K1N/E: 4.0 m |
FLOWMETER AND ACCESSORIES
TRANSDUCERS AND ACCESSORIES
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