Hand-Held Clamp-On Ultrasonic Flowmeter Type KATflow 200 Katronic For Oil And Gas

KATflow 200, Hand-Held Clamp-On Ultrasonic Flowmeter


The KATflow 200 is a fully portable instrument with a power which is belied by its small size. This light- weight flowmeter is incredibly easy to use and can be operated one-handed which makes it an ideal tool for use in confined spaces or when working at height. The KATflow 200 offers measurement performance normally associated with more complex and expensive devices and is complemented by the exceptional quality and robustness of the Katronic transducers.


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.

KATflow 200 in operation

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.


  • Pipe diameter range 10 mm to 6,500 mm
  • Temperature range for sensors : -30 °C to +250 °C (-22 °F to +482 °F)
  • Weight 650 g
  • Robust IP 65 enclosure with added rubber shock protector
  • Selectable three-line LCD display and fu ll keypad
  • Battery life up to 24 hours with standard NiMH AA batteries for simple replacement.


  • Lightweight and tactile for easy one-handed use
  • Stainless steel sensors, cable and connectors as standard
  • I nnovative installation wizard for quick and intuitive programming
  • Full instrument diagnostics and scope function
  • Large data logger and software for sampling and data transfer.
KATflow 200, Hand-Held Clamp-On Ultrasonic Flowmeter


  • Optional pipe wall thickness gauge
  • Crush-proof IP 67 transport case or lightweight soft case
  • Special waterproof solution available for harsh environmental conditions
  • KATdata+ software for data evaluation
  • Optional external battery pack available for long- term measurements
Wall thickness gauge NT with KATflow 200 in use


  • Pump testing and inspection
  • I n-line flowmeter performance verification
  • Leakage and blockage detection
  • Clean in process system (CIP) testing
  • Monitoring of hydraulic systems
  • Clean room applications.



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


Enclosure type Hand-held
Degree of protection IP 65   according to EN 60529
Operating temperature -10   … +60 °C (+14 … +140 °F)
Housing material ABS   (UL 94 HB)
Measurement channels 1
Power supply Internal rechargeable   batteries: 4 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 228   (h) x 72/124 (w) x 58 (d) mm (without cable glands)
Weight Approx.   650 g
Power consumption < 3 W
Operating languages English, French, German, Dutch, Spanish, I talian, Russian,   Czech, Turkish, Romanian (others on request)

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


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


K1L, K1N, K1E

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 … +392 °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

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 … +200 °C (-22 … +392 °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   K4L : 5.0 m
Type   K4N/E : 2.5 m





Read more : KATflow 150, Advanced Clamp-On Ultrasonic Flowmeter

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