FDM06-L Bi-directional Low Air Flow Thermal Mass Transmitter (Duct / Remote type)
Model :
FDM06-L
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
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
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Features● 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 -
ApplicationsOverflow 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. -
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Specification
Input
Sensor type
Hot-wire sensor
Turndown ratio
100 : 1
Measuring range*
±(0.00 ... 1.00 m/s)
±(0.00 ... 2.00 m/s)
±(0.00 ... 10.00 m/s)
±(0.00 ... 30.00 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
Voltage output : ≧10 KΩ
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)
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)
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 valueEnvironmental
Medium
Air
Operating Temp. & Humid.
0 ... 50°C / 20 ... 90%RH(Non-condensing)
Storage Temp.
-25 ... +60°C
Operating pressure
2 bar : Duct type / Remote type
none : Laminar flow type / Overflow type
Electrical
Power supply
DC 24 V ±10%
Current consumption
24 V : 110 mA
Relay capacity
Max current : 6 A
Max voltage : DC 24 V (DC 36 V Max)Electrical connection
M12 8P connector
Installation
Installation
PT 1/4" movable thread
Display
Display readout
-99.99 ... +99.99 (Air velocity)
0 ... 99999 (Air volume)
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
Remote type (2 m cable) : 450 g
Laminar flow type : 300 g
Overflow type : 290 g
Note : Design and specifications are subject to change without notice.
Note : If the product has RS-485 function, to avoid damaging product, please make sure the product and the device which connect with RS-485 are on common ground.