Clamp-on Ultrasonic Flow Meter FB500series

Features : Suitable for water, circulating cooling water, and some chemical liquids; DN8–DN40 small pipe diameters.
Detection Principle : Transmission Time Difference
Maximum Flow Rate : 19.6 ... 376.8 L/min
Output : Switch / Analog / RS-485
Accuracy : ±1% F.S.
IP rating : IP65/IP67

Specification

Applicable Pipe Size

Metric Units

DN8 (1/4") ... DN40 (1 1/2")

Pipe Material

Stainless steel, Carbon steel, Copper pipe, Aluminum pipe, PVDF, CPVC, PVC, PPR, PPH, PFA, HDPE

Fluid Temperature

0°C ... 85°C (Pipe surface must not be frozen)

Maximum Flow Rate

19.6 ... 376.8 L/min

Zero Cut-Off Flow Rate

0.3 ... 1.0 L/min

Detection Principle

Transmission Time Difference

Display

TFT2.0"

Display Refresh Cycle

4times/sec

Resolution

Instantaneous Flow

0.01, 0.1, 1 L/min

Totalized Flow

0.01, 0.1, 1 L (up to 8 digits)

Response Time

0.5s, 1.0s, 2.5s, 5.0s, 10.0s

Measurement Accuracy

At 10% to 100% of F.S.

±2% of F.S. Note 1, 2, 3

At 0% to 10% of F.S.

±1% of F.S. Note 1, 2, 3

Repeatability F.S.

±0.8% Note 2, 4

Flow Unit

L/min, m³/h

Pulse Output Unit

0.1 ... 999.99 L

Data Retention Time

Approx. 1 year

Power I/O Connector

M12 8pin connector

Output

Switch Output

Instant / Window / Pulse / Accumulated / Error / No Signal / NPN / PNP switchable open collector output : ≤ 26.4 VDC, ≤ 80 mA/ch, residual voltage ≤ 2.5 V

Analog Output

1 ... 5 V / 0 ... 10 V (switchable) Load resistance : 50kΩ

4 ... 20 mA / 0 ... 20 mA (switchable) Load resistance : ≤300 Ω Note 5

Communication Interface

RS-485

Relay Output

Relay output : ≤ 30VDC, max 1A, freq. <2Hz

Power Supply

Supply Voltage

DC24V±10% Note 6

Current Consumption

≤200 mA Note 7

Protective Circuit

Power reverse protection, surge protection, output short-circuit protection Note 8

Environmental Resistance

Enclosure Protection Rating

IP65/IP67

Operating Temperature

－ 20°C ... +60°C (no freezing)

Operating Humidity

35% ... 85%RH (non-condensing)

Vibration Resistance

10Hz to 500 Hz power spectral

density : 0.816 G²/Hz (X, Y, Z directions)

Menu Language

Traditional Chinese, English

Calendar Battery

CR1220

Applicable Medium

Water, solution, chemical reagents (impurities ≤ 4%)

Applicable Viscosity

<300CST (mm²/s)

Weight

DN8 / DN10 : 316 g , DN15 / DN20 : 309 g, DN25 / DN32 : 392 g , DN40 : 503 g