Ascensor Technologies

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Air Velocity

eYc FTS14 Air Velocity Transmitter

● Temperature compensation, linear adjustment function
● Switching analogue output by dip switch
● Off set function by button

Input type of air velocity
thermal mass flow sensor
air velocity measuring range
20 m/s
air velocity min. measuring range
0.2 m/s
accuracy( +25°C )
± 5 % F.S. ( nonlinear error, hysteresis error,repeatability error )
thermal sensitivity temp. error : 0.2 % / ℃
output
4 ... 20 mA / 0 ... 10 VDC
signal connection
3-wire
load resistance
≦ 500Ω(current output) / ≧ 10KΩ(voltage output)
overvoltage protection
DC：< 45V；AC：< 40V
power supply
8 ... 35VDC / 12 ... 30VAC
protect degree
IP54

eYc FTE120 OEM Hot wire anemometer transmitter (duct type)

The best choice for wind speed / flow monitoring eYc FTE120 Hot wire anemometer speed transmitter, RT D platinum resistance, low errorrate, high stability, reaction quality.PC fire-rated polished plastic material casi ng, coloris easy to identify , suitable for indoor environmental monitoring. Duct (flange)is for closed duct, proc ess pipelines, such as parking garage, petrochemic alplants VOC emissions, flue emissions and flow / velocity of fl ow monitoring. Can be installed in hospitals or department stores HVAC sy stem equipment and other small space equipment, wards, operating rooms or food court area of t he air traffic management.

Sensor
RTD Platinum Resistance
Measuring range
0 ...20 m/s
Min. measuring range
0.2 m/s
Accuracy
± 3 % of F.S.
Output
4 ... 20 mA； 0 ... 10 V
Signal Connection
3 wire
Load resistance
voltage output ≧ 10 KΩ ;
current output ≦ 500 Ω
Overvoltage protection
DC : < 45V ; AC : < 40V
Power Supply
8 ... 35 VDC & 8 ...30 VAC
Protection rating
IP 54

The best choice for wind speed / flow monitoring
● 【Material】SUS304 stainless steel probe ,PC + glass fiber, temperature up to 120 ℃
● 【PC Housging】PC fire-resistant plastic cover, HB PC Fire retardant
● 【Cost–performance】Affordable,economic,high accuracy, long-term stability
● 【High stability】RTD platinum resistance, low error rate, high stability,reaction quality
● 【Easy installation】Compact size,simplicity style easy to install
● 【Electrical Protection】Reverse protection circuit
● 【Environmental Protection】CE certification and ROHS

● HVAC Process Monitoring / Air Conditioning / Ventilation Control
● Building / Plant / Cleanroom / Laboratory / Building Automation Environmental Monitoring
● Agriculture / Food / Electronics / Industrial Monitoring
● Residential / Hospital / Storage

eYc AFMT Average Flow Measuring Tube ( Pitot tube )

● Duct-mounting type
● Material: stainless
● Operating temperature:max. 250℃
● Length(L)/mm:4" ... 40"
● Option:differencial pressure trainsmitter(can measure flow)

Measuring Media
Air
Operating pressure
Max.10 bar
Operating temperature
Max. 250℃
Installation connection
R3/4" adjustable thread for length < 12"
R1" adjustable thread for length > 18"
Exit connection
R1/8" inside thread for length < 12"
R1/4" inside thread for length > 18"
Measuring material
Stainless steel 316
Connection thread material
cooper or option: stainless steel

AFMT is a probe we insert into the duct ( along with the whole diameter ) to measure the flow. When the probe encounters the flow, several pressure detecting holes will sense and get the average total pressure P1 in windward side and static pressure P2 in leeward. AFMT then gets the flow velocity by measuring the difference between total pressure and static pressure ( i.e. dynamic pressure ). By Bernoulli theory, we can get the output dynamic pressure(ΔP) and flow average velocity( V).

AFMT and differential pressure transmitter are often being used in the measurement of flow. With several pressure detecting holes on the AFMT,we can get the average of the flow inside the duct and improve the problem happened in the flow measuring where disturbance occurs when there’s no adequate space inside the straight inlet.

eYc FTM84/85 Industry degree high accuracy thermo air velocity transmitter

● IP65 protection degree, rugged aluminum case, fit in variety harsh environment
● Capable of temperature compensation
● Llinear adjustment air velocity by computer, analogue output or option RS-485
● High-speed, high-precision measurement, fast response
● Thermistor measurement sensor
● LCD display air velocity and temperature value
● Switch multifunction physical quantities：[m/s]、[ft/s]、[km/h]、[mph]、[kont]
● DIP SWITCH function and RS-485 function
● Calibration physical quantities, measuring range, analogue output, station, and zero-point OFF SET function
● Keyboard or RS-485adjustment zewo-point OFF SET function
● Free calibration software : data logger / record 65535 datas / charts

sensor type
thermal mass flow sensor
1 m/s ; 2 m/s ; 5 m/s ; 10 m/s；20 m/s；40 m/s ; 60 m/s ; 90m/s ; 120m/
air velocity min. measuring range
0.15 m/s
PT 1000, 0 ... 80 ℃
accuracy ( + 25 °C )
air velocity : ± 1.5 % F.S. ( nonlinear error, hysteresis error, repeatability error )
temperature ( > 2 m / s ) : ± 0.3 ℃
thermal sensitivity temp. error : 0.05 % / ℃
output
0 ... 20 mA / 4 ... 20 mA /
0 ... 1 VDC / 0 ... 5 VDC / 0 ... 10 VDC
signal connection
3-wire
load resistance
≦ 500Ω(current output) / ≧ 10KΩ(voltage output)
overvoltage protection
DC：< 45V；AC：< 40V
power supply
8 ... 35VDC / 12 ... 30VAC
protection degree
IP 65

eYc FTS07 Hot wire air velocity transmitter

● Probe type
● 1m/s;10m/s;20m/s
● 0∼10VDC
● 2-meter cable

Measuring Range
1m/s;10m/s;20m/s
Accuracy(at 25℃)
±5% of F.S.(at25℃；RH45%)
Output
0∼10VDC
Overload Resistance
＞10KΩ
Overvoltage protection
<35VDC
Power Supply
24VDC±20%
Protection Degree
IP20

eYc FTS34/35 Air Velocity Transmitter

● Linear adjustment function
● Switch for physical quantity：[m/s]、[ft/s]、[km/h]、[mph]、[knot]
● Option RS-485 Communication Interface, Modbus RTU protocol
● Configuration measuring rage, analog output, station number by dip switch & RS-485
● Off SET function by bottom or RS-485
● Programmable softeware : DATA LOGGER, record, and chart analysis

sensor type
thermal mass flow sensor
air velocity measuring range
2 m/s ; 10 m/s；20 m/s；40 m/s
air velocity min. measuring range
0.2 m/s
accuracy( +25°C )
air velocity : ± 2 % F.S. ( nonlinear error, hysteresis error,repeatability error )
thermal sensitivity temp. error : 0.1 % / ℃
output
4~20 mA / 0~10 VDC
signal connection
3-wire
load resistance
≦ 500Ω(current output) / ≧ 10KΩ(voltage output)
overvoltage protection
DC：< 45V；AC：< 40V
power supply
8~35VDC / 12~30VAC
protect degree
IP54