This measuring instrument is a clamp-on ultrasonic flowmeter that can measure the volumetric flow rate of a liquid inside a pipe by attaching it from the outside. By making full use of the latest electronic and digital signal processing technologies, this ultrasonic flowmeter is considerably more compact than conventional flowmeters. It integrates the transmitter and flow sensor, eliminating the need for signal wiring, while its grease-free design makes it easy to mount on pipes. What's more, it features Modbus communication via RS-485, allowing easy integration into control and monitoring systems.
Main unit type | Type | Pipe diameter |
FSZ08 | 8A, 10A | |
FSZ15 | 15A, 20A | |
FSZ25 | 25A, 32A |
Configuration | Integrated transmitter and flow sensor |
Mounting method | Clamp-on type |
Measurement method | Transit time measurement method |
Measuring fluid | Homogeneous fluids where ultrasonic signals can be transmitted |
Measurement range | 0 to ±5 m/s (Min. 0 to ±0.2 m/s) |
Accuracy | Speed from 1 m/s to 5 m/s: ±2% of flow rate Speed below 1 m/s: ±0.02 m/s |
Straight pipe length required | Upstream 10D or more; downstream 5D or more (D: inside diameter of pipe) |
Pipe materials | Metals (stainless steel, steel, copper) Plastics (PVC, PP, PVDF) |
Pipe thickness | 1.2 mm to 4.9 mm |
Temperature and humidity of fluid | -15 to +85°C (may vary depending on ambient temperature) |
Response time | 0.5 seconds |
Analog output signal | 4 to 20 mA DC : 1 point Load resistance: 550 Ω max |
Digital output | Outputs can be assigned to total normal and alarms as required Transistor contact (open collector) - Outputs: 2 - Normal: ON/OFF selection - Contact rating: 27.5 V DC, 100 mA - Output frequency: Max. 100 P/s (Pulse width 5, 10, 50, 100, 200 ms) |
Connectivity | RS-485 (MODBUS) Number of connectable modules: up to 31 Baud rates: 9600, 19200, 38400 bps Parity: None/odd/even, selectable Stop bit: 1 or 2 bits, selectable Cable length: up to 1 km Data: throughput, pipe temperature, forward total, error information, etc. |
Display | 4-digit 2-line LED display |
Degree of protection | IP65/lP67 |
Ambient temperature | -15 to +60°C |
Ambient humidity | 95%RH or less |
Power supply and consumption | 20 to 27.5 V DC, 2.5 W or less |
Weight | FSZ08: 400 g FSZ15: 500 g FSZ25: 600 g |
Temperature sensor - Temperature measurement | Pipe surface temperature measurement (optional) |