Features
Using Mass flow principle A better choice for HVAC engineering
● Hot wire mass flow transmitter
● IP rating：IP54
● Linear adjustment function
● Switching analog output by dip switch
● The housing and probe material are PC fire-proof
FTS140 hot wire air velocity transmitter, using mass flow measuring principle, stable electrical bridge with good accuracy, simple structure, stable performance and low flow sensitivity.
It is suitable for use in HVAC air conditioning environment measurement, optimization and adjustment of system performance, ventilation control.
Duct type, easy installation, suitable is used extensively in environmental engineering projects, as facility and factory maintenance.
● Hot wire mass flow transmitter
● IP rating：IP54
● Linear adjustment function
● Switching analog output by dip switch
● The housing and probe material are PC fire-proof
FTS140 hot wire air velocity transmitter, using mass flow measuring principle, stable electrical bridge with good accuracy, simple structure, stable performance and low flow sensitivity.
It is suitable for use in HVAC air conditioning environment measurement, optimization and adjustment of system performance, ventilation control.
Duct type, easy installation, suitable is used extensively in environmental engineering projects, as facility and factory maintenance.
Applications
Monitoring air and flow for industrial process / HVAC / Building / Factory
Specification
Input |
|
Sensor |
Hot wire mass flow transmitter |
Measuring range |
0 ... 20 m/s |
Min. measuring range |
0.2 m/s |
Installation angle effect |
(When the installation angle＜10°) ±3%F.S.(Nonlinear error, Hysteresis) |
Output |
|
Output signal |
4 ... 20 mA / DC 0 ... 10 V |
Signal connection |
3-Wire |
Load resistance |
Current output : ≦500 Ω |
Response time |
t90≦5 sec(τ : 90%) |
Accuracy |
|
Accuracy |
±3%F.S. |
Temp. influence |
0.3% / °C |
Environment |
|
Medium & Temp. |
Air, 0 ... 50°C |
Body operating Temp. |
0 ... 50°C |
Body operating Humid. |
95%RH(Non-condensing |
Storage Temp. |
-20 ... +60°C |
Electrical |
|
Power supply |
DC 24 V & AC 12 ... 30 V |
Current consumption |
DC 24 V : 120 mA / AC 12 V : 350 mA / AC 24 V : 180 mA |
Overvoltage protection |
DC : ＜40 V；AC : ＜40 V |
Electrical connection |
Terminal |
Installation |
|
Fixed seat |
Duct type / Flange type |
Protection |
|
IP rating |
IP54 |
Electrical protection |
■ Reverse polarity |
Certification |
|
Certification |
CE |
Material |
|
Housing / Probe |
PC fire-proof(UL94V-2) / PC fire-proof |
Probe head / Wire |
PC |
Weight |
~150 g |
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Note : Design and specifications are subject to change without notice.
Note : Please make sure the product and the device which connect with RS-485 are on common ground, avoid damaged product.