For fully filled pipes
KATflow 230
Product categories
Mobile Clamp-On ultrasonic flow meter
Water
Hydropower
Ultrasonic
Smart Infrastructure
Your benefits
- Pipe diameter range 10 mm to 3000 mm
- Temperature range for sensors -30 °C to +250 °C (-22 °F to +482 °F)
- Selectable three-line LCD display and full keypad
- Robust IP 65 aluminium enclosure
- Battery life up to 24 hours with easily replaceable battery cartridge
- Measurement of two flows simultaneously
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
Options
- Optional pipe wall thickness gauge
- Available with crush-proof IP 67 transport case or lightweight soft case
- Expansion box for additional input or output configuration and special solutions
- Software for data evaluation
- Special waterproof solution available for harsh environmental conditions

Downloads
Properties
- 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
Product information
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 |

KATflow 230 (dimensions in mm)
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 fully charged internal batteries |
Display | LCD graphic display, 128 x 64 dots, backlit |
Dimensions | 266 (H) x 168 (B) x 37 (T) mm |
Weight | Approx. 2.0 kg |
Power consumption | <5 W |
Operating languages | English, French, German, Dutch, Spanish, Italian, 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 |

KATflow 230 in crush-proof IP 67 transport case

KATflow 230 in operation
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 (on request) |
Logged data | All measured and totalised values, parameter sets |
Software KATdata+
Functionality | Download of measured values/parameter sets, graphical presentation, list format, export to third party software, online transfer of measured data |
Operating systems | Windows 10, 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) |
Process outputs (galvanically isolated)
Current | 0/4 ... 20 mA active (RLoad <500 Ω), 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 |
Further process outputs available on application.
Transducers
K1L, K1N, K1E
Pipe diameter range | 50 ... 3000 mm |
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 (IP 67 and IP 68 on request) |
Standard cable lengths | Type K1L: 5.0 m Type K1N/E: 4.0 m |

K1N/E transducers

K1L transducers

K1N/E transducers with ODU/LEMO connector
K4L, K4N, K4E
Pipe diameter range | 10 ... 250 mm for type K4N/E 10 ... 250 mm for type K4L |
Dimensions of sensor heads | 43 (h) x 18 (w) x 22 (d) mm |
Material of sensor heads | Stainless steel |
Material of cable conduits | Type K4L: PVC Type K4N/E: Stainless steel |
Temperature range | Type K4L: -30 ... +80 °C (-22 ... +176 °F) Type K4N: -30 ... +130 °C (-22 ... +266 °F) Type K4E: -30 ... +250 °C (-22 ... +482 °F) (for short periods up to +300 °C (+572°F)) |
Degree of protection | IP 66 according to EN 60529 (IP 67 and IP 68 on request) |
Standard cable lengths | Type K4L: 5.0 m Type K4N/E: 2.5 m |

K4N/E transducers

K4L transducers

K4N/E transducers with ODU/LEMO connector
Transducer mounting accessories
General
Diameter range and mounting types | Clamping set (metal strap with screw), stainless steel: DN 10 ... 40 Clips and chains, chain length 1 m, stainless steel: DN 15 ... 310 Clips and chains, chain length 2 m, stainless steel: DN 25 ... 600 Clips and chains, chain length 4 m (2 x 2 m), stainless steel: DN 25 ... 1,200 |

Mounting clip and chains for use with portable flowmeter

Mounting clip

Transducers mounted using chains and clips
General
Diameter range and mounting types | Mounting fixture, rail and magnets (for type K4 ): DN 10 ... 250 Mounting fixture, rail and magnets (for type K1 ): DN 50 ... 3000 |
Mounting fixture for flexible hoses | Custom made mounting bracket, stainless steel (available on request) |

Mounting fixture, rail and magnets

Mounting fixture, rail and magnets

Example of mounting fixture for flexible hoses
PT100 Clamp-On sensors
General
Type | PT100 (Clamp-On sensors) |
Measurement range | -30 ... +250 °C (-22 ... +482 °F) |
Circuits | 4-wire |
Accuracy T | ±(0.15 °C + 2 x 10 -3 x T [°C]), class A |
Accuracy ∆T | ≤ 0,1 K (3 K <∆T <6 K) corresponding to EN 1434-1 |
Response time | 50 s |
Dimensions of sensor heads | 20 (h) x 15 (w) x 15 (d) mm |
Material of sensor heads | Aluminium |
Material of cable jacket | PTFE |
Cable length | 3,0 m |

PT100 transducer

PT100 transducer fixed to pipe

KATflow 230 with PT100 transducer
Wall thickness gauges (optional)
Wall thickness gauge NT
Temperature range | -20 ... +100 °C (-4 ... +212 °F) |
Measuring range | 1.0 ... 200 mm |
Resolution | 0.01 mm |
Linearity | 0.1 mm |
Cable length | 1.5 m |
Wall thickness gauge HT
Temperature range | 0 ... +500 °C (+32 ... +932 °F) |
Measuring range | 1.0 ... 200 mm |
Resolution | 0.01 mm |
Linearity | 0.1 mm |
Cable length | 1.5 m |

Wall thickness gauge NT

Wall thickness gauge NT in use

Wall thickness gauge HT in use
Transport accessories
Crush-proof transport case
Dimensions (external) | 190 (h) x 480 (w) x 385 (d) mm |
Weight (empty) | 3.71 kg |
Degree of protection | IP 67 according to EN 60529 |
Outside material | Polypropylene/resin compound |
Inside material | High-density polyurethane foam |
Soft transport case
Dimensions (external) | 175 (h) x 450 (w) x 320 (d) mm |
Weight (empty) | 750 g |
Degree of protection | No IP rating |
Outside material | Nylon |
Inside material | Nylon |

Crush-proof IP 67 transport case

KATflow 230 soft transport case