FTS140 Hot Wire Air Velocity Transmitter

Features : Economic model for HVAC application.
Sensor type : Hot wire mass flow transmitter
Measuring range : 0 ... 20 m/s
Output : 4 ... 20 mA / DC 0 ... 10 V
Accuracy : ±3% F.S.
IP rating : IP54

FTS140 Hot Wire Air Velocity Transmitter FTS140
FTS140 Hot Wire Air Velocity Transmitter FTS140

FTS140 Hot Wire Air Velocity Transmitter

Features : Economic model for HVAC application.
Sensor type : Hot wire mass flow transmitter
Measuring range : 0 ... 20 m/s
Output : 4 ... 20 mA / DC 0 ... 10 V
Accuracy : ±3% F.S.
IP rating : IP54

Datasheet

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.


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
Voltage output : ≧10 KΩ
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
■ Over-voltage
■ Short-circuit

Certification

Certification
CE

Material

Housing / Probe
PC fire-proof(UL94V-2) / PC fire-proof
Probe head / Wire
PC
Weight
~150 g

Monitoring air and flow for industrial process / HVAC / Building / Factory

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.