FDM06-L Bi-directional Low Air Flow Thermal Mass Transmitter (Duct / Remote type)
Features : Bi-directional transmitter for tight-space insertion
Sensor type : Hot-wire sensor
Turndown ratio : 100 : 1
Measuring range : ±(0.00 ... 1 m/s), ±(0.00 ... 2 m/s), ±(0.00 ... 10 m/s), ±(0.00 ... 30.00 m/s)
Output : 4 ... 20 mA / 0 ... 10 V / Relay / RS-485
Accuracy : 0.05 ... 1.00 m/s：±(1% of mv+0.05 m/s), 0.05 ... 2.00 m/s：±(1% of mv+0.1 m/s), 0.1 ... 10.00m/s：±(1% of mv+0.2 m/s), 0.5 ... 30.00m/s：±(1% of mv+0.5 m/s)
IP rating : IP65
FDM06-L Bi-directional Low Air Flow Thermal Mass Transmitter (Duct / Remote type)
Features : Bi-directional transmitter for tight-space insertion
Sensor type : Hot-wire sensor
Turndown ratio : 100 : 1
Measuring range : ±(0.00 ... 1 m/s), ±(0.00 ... 2 m/s), ±(0.00 ... 10 m/s), ±(0.00 ... 30.00 m/s)
Output : 4 ... 20 mA / 0 ... 10 V / Relay / RS-485
Accuracy : 0.05 ... 1.00 m/s：±(1% of mv+0.05 m/s), 0.05 ... 2.00 m/s：±(1% of mv+0.1 m/s), 0.1 ... 10.00m/s：±(1% of mv+0.2 m/s), 0.5 ... 30.00m/s：±(1% of mv+0.5 m/s)
IP rating : IP65
● Based on the thermal mass flow sensing principle, featuring bi-directional measurement.
● Highly sensitive to low airflow, using dual temperature sensors for detection; designed for laminar flow and differential pressure (positive/negative) control.
● 2″ LCD color screen with easy configuration via buttons.
● Displays air velocity and airflow, integrated with UI settings.
● Accuracy : ±1.0%
● Multiple Outputs: Analog output / Relay / RS-485
Input | |
Sensor type | Hot-wire sensor |
Turndown ratio | 100 : 1 |
Measuring range* | ±(0.00 ... 1.00 m/s) |
Minimum measuring range | 0.1 m/s |
| *Deadband : 0... -0.5 m/s *Recommended range : 0.00 ... 2.00 m/s for laminar and overflow monitoring. *Default setting: Forward direction | |
Output | |
Output signal | 4 ... 20 mA / 0 ... 10 V / Relay / RS-485 |
Signal connection | 3-wire |
Warm-up time | 60 sec |
Response time | t90≦5 sec |
Load resistance | Current output : ≦500 Ω |
Communication | |
Communication methods & protocol | RS-485 Modbus RTU |
RS-485 baud rate | 9600、19200、38400、57600、115200 bps |
Accuracy | |
Accuracy (Including hysteresis, non-linearity and repeatability) | 0.05 ... 1.00 m/s : ±(1% of mv+0.05 m/s) |
Uncertainty of factory calibration | ±1% |
Installation angle effect | <3 % mv for α <10° |
Temp. influence | 0.2% / °C |
*The measurement range is defined at the standard condition(1013 mbar, 20°C). *mv = measured value | |
Environmental | |
Medium | Air |
Operating Temp. & Humid. | 0 ... 50°C / 20 ... 90%RH(Non-condensing) |
Storage Temp. | -25 ... +60°C |
Operating pressure | 2 bar |
Electrical | |
Power supply | DC 24 V ±10% |
Current consumption | 24 V : 110 mA |
Relay capacity | Max current : 6 A |
Electrical connection | M12 8P connector |
Installation | |
Installation | PT 1/4" movable thread |
Display | |
Display readout | -99.99 ... +99.99 (Air velocity) |
Decimal point | Button |
Sampling time | 1 cycle/sec |
Flow unit | m/s, ft/s, L/min, m³/min, m³/h |
Response time adjustment range | 0.5 ... 300 sec |
Certification | |
Certification | CE |
Protection | |
IP rating | IP65(Housing) |
Electrical protection | ■ Reverse polarity ■ Over-voltage |
Material | |
Housing | Aluminum alloy / Plastic |
Probe | SUS316 |
Probe head | SUS304 |
Weight | Duct type : 340 g |
Overflow Flow Monitoring ( 0.20 m/s) / Laminar Flow Monitoring ( 0.20 ... 0.50 m/s) / Semiconductor / Pharmaceutical / Food and Beverage / Laminar Flow Control / Overflow Control / Positive and Negative Pressure Control / Energy / Environmental Protection / Factory Automation / Pharmaceutical
*Recommended range : 0.00 ... 2.00 m/s for laminar and overflow monitoring.