Model: WFC (IO-Link/CT/T)
WFC is a flow sensor that measures the flow of conductive fluids that do not corrode the wetted part materials by capacitance detection. This type has IO-Link and a fluid temperature measurement function, in two flow rate ranges: 0.5 to 15 L/min and 2.0 to 60 L/min.
| Applicable Fluids | Water and fluids (conductive fluids) that do not corrode the wetted part materials |
| Available Fluid Conductivity | 5 µS/cm or more |
| Detection | Capacitance |
| Rated Flow Range | WFC-150: 0.5 to 15 L/min, WFC-600: 2.0 to 60 L/min |
| Port Size | WFC-150: Rc3/8, G3/8, 3/8NPT; WFC-600: Rc1/2, G1/2, 1/2NPT or Rc3/4, G3/4, 3/4NPT |
| Low Flow Cut Flow Rate | Measured range max. flow rate of 3% |
| Working Fluid Temperature | 0 to 85 °C (no freezing) |
| Response Time | 0.1 s / 0.25 s / 0.5 s / 1 s / 2 s / 5 s (default 1 s) |
| Fluid Temperature Measurement Range / Accuracy | Measurement range 0 to 85 °C (operational range -10 to 110 °C); accuracy less than 50 °C: ±2 °C (difference between fluid temperature and ambient temperature within ±5 °C), 50 °C and over: ±5 °C |
| Working Pressure | 0 to 1.0 MPa (fluid temperature 0 to 85 °C), 0 to 2.0 MPa (fluid temperature 0 to 50 °C) |
| Proof Pressure | 3.0 MPa |
| Repeatability / Temperature Characteristics | Repeatability ±2.0% F.S.; ambient temperature characteristics ±5.0% F.S. (base temperature 25 °C); fluid temperature characteristics ±5.0% F.S. (base temperature 25 °C) (at response time 1 s) |
| Integrating Flow Range | 0.0 to 99999999.9 L (0.1 L increments) |
| Pressure Loss | 0.02 MPa or less (at max. rated flow) |
| Switch Output Rating | Max. load current 50 mA; max. applied voltage 30 VDC; internal voltage drop NPN 2.0 V or less / PNP 2.4 V or less; output protection: overcurrent abnormal alarm, overcurrent protection |
| Switch Output | NPN or PNP MOS-FET (switchable with settings) |
| Output Mode | Select from hysteresis mode, window comparator mode, integrated output mode, integrated pulse output mode, alarm output mode and frequency pulse output mode |
| Analog Output | Voltage output 1 to 5 V (load impedance 50 kΩ or more); current output 4 to 20 mA (load impedance 500 Ω or less) |
| Switch Input | Input time 20 ms or more; short-circuit current approx. 2 mA |
| Display | 2-screen display (main: green/red 2-color, sub: white), screen flip possible; instantaneous flow rate 3 digits, fluid temperature 2 digits, integrating flow 4 digits; screen refresh cycle 5 times/sec |
| Display Unit | Instantaneous flow rate L/min, integrating flow L, kL, ML, fluid temperature °C |
| Power Supply Voltage | When setting switch output: 24 VDC ±10% (ripple P-P ±10% or less); when setting IO-Link: 20 to 30 VDC (ripple P-P ±10% or less) |
| Current Consumption | 65 mA or less (with 24 VDC, 25 °C) |
| Degree of Protection | IP65 equiv. (when the cable option is mounted) |
| Operating Ambient Temperature / Humidity | 0 to 50 °C (no condensation) / 35 to 85% RH (no condensation) |
| Mounting Orientation | Unrestricted in vertical/horizontal direction |
| Compliant Standards | EC Directives (EMC Directive, RoHS Directive) |
| Material of Wetted Parts | PPS, FKM, CAC804, C6931 |
| Body Weight | WFC-150: approx. 460 g; WFC-600 (1/2 series): approx. 490 g; WFC-600 (3/4 series): approx. 520 g; bracket approx. 30 g; cable and L type cable approx. 170 g, two-sided connector cable approx. 180 g, L type two-sided connector cable approx. 100 g |
| Order Code (IO-Link/Fluid Temperature Measurement) | C: IO-Link compatible; CT: with IO-Link compatible and fluid temperature measurement function; T: with fluid temperature measuring function; included options: C3 cable (M12/4-conductor/3 m), L3 L type cable, B3 double-ended connector cable, G3 L type double-ended connector cable, B bracket. Configuration to analog output/switch output is also possible |
| Parallel Installation Interval | Contact CKD when installing in parallel at intervals of less than 50 mm |
| Grounding | Piping port and body metal part are grounded to DC (-)/blue wire. This product cannot be used in (+) ground power supply. Contact CKD if using in (+) ground power supply. |
| Response Time Definition | The response time to reach 63% of the value in relation to the step input |