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eyc-tech Measuring Specialist

FTM94/95 Industrial High Accuracy Thermal Mass Flow Transmitter

Product Name :
FTM94/95 Industrial High Accuracy Thermal Mass Flow Transmitter
Model No :
FTM94FTM95
● IP67 Rugged stainless steel case, fit in variety harsh environment
● Easy to install, imported sensing element, high accuracy, long-term stability
● Switch multifunction physical quantities(Air velocity and volume)：[m/s]、[ft/s]、[Nm3/h]、[Nm/s]、[L/min]、[m3/min]
● LCD Display of air velocity and temperature
● LCD Display of cumulative flow : m3, L (Option)

FTM94/95 Hot wire thermal air velocity transmitter working at a constant Temp. using King's law heat balance equation for:

e2=a'+b'vn
 e： Sensor voltage output(V)
a'：
 Zero output of constant temperature hot wire anemometer, can use CTA circuit as temperature compensation
b'： Sensitivity of the sensor, related to the operating temperature
v： Fluid flow rate
n： 0.45 ... 0.5(Standard)
     
Can be calculated from the formula characteristic curve of constant Temp. hot wire anemometer, special three PT probe and full metal housing design, high accuracy, suitable for a variety of pipe diameters, widely used in industrial fields.

Input

Input type
Pt20 / Pt300 (Air velocity) / Pt1000 (Temp.)
Measuring range
0 ... 120 Nm/s
N : Working condition (Definition : 20°C at 1013 hPa)
Units can be converted Nm/s (Flow rate) or Nm³/h (Flow)(Option) or m³ (Cumulative flow)(Option)
Minimum initial value
0.15 Nm/s
Installation angle effect
＜3% of the measured value (When the installation angle＜10°)

Output

Signal
4 ... 20 mA / 0 ... 10 V / RS-485 / Impulse
Preset output
Out1 : Air velocity；Out2 : Impulse
Impulse range (1 ... 500 Hz)
(1)1 ... 500 Hz : 4 ... 20 mA
(2)1 ... 500 Hz : 0 ... 10 V
Signal connection
3-wire
Warm-up time
＜60 sec
Reaction time
t90＜5 sec
Display type
LCD Module with back light, double-row
(Up air velocity, down temperature(Default: 0 ... 120°C))
Load resistance
Current output : ≦500 Ω
 Voltage output : ≧100 KΩ

Accuracy

Accuracy
±1.5% F.S. (Option ±1%)
Temp. influence
0.1% / °C
Repeatability
0.5%

Electrical

Power supply
DC 24 V±10%
Current consumption
＜0.3 A
Overvoltage protection
DC : ＜40 V
Electrical connections
M12 connector / M16 metal cable gland

Environmental

Measuring medium
Air
Operating Temp.
-20 ... +60°C
Operating Humid.
0 ... 95%RH(Non-condensing)
Probe operating Temp.
0 ... 120°C / Option:200°C
(Increasing operating temperature will affect air velocity error)
Storage Temp.
-20 ... +60°C
Storage Humid.
0 ... 95%RH(Non-condensing)
Probe pressure
16 bar

Installation

Fixed seat
1/2″PT movable thread
Installation
Duct type / Remote type

Protection

IP rating
IP67(Probe)；IP65(Housing)
Electrical protection
■ Reverse polarity ■ Over-voltage ■ Short-circuit

Certification

Certification
CE

Material

Housing
Aluminum alloy
Probe
SS304 ( Option SUS316 )
Remote probe cable
TEFLON (Remote FTM95)
Weight
FTM94 : 720 g / FTM95 : 832 g
Exhaust gas removal / Dust environment / Slightly corrosive environment / Burner feeder / Biotechnology industry / Factory building air intake / Exhaust calculation

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FTE120 OEM Air Flow Transmitter

FTM84/85 Industrial High Accuracy Thermal Air Velocity Transmitter

FTS140 Hot Wire Air Velocity Transmitter

FTM06D-I Inline Type Air Flow Transmitter

Contact us

Company Name :eyc-tech Measuring Specialist
Contact Person :Dr. eyc-tech
Address :12F., No. 15, Qiaohe Rd., Zhonghe Dist.,
City :New Taipei City
Province / State :Taiwan
Country :Taiwan Taiwan
Website :http://www.eyc-tech.com
Telephone :886-2-82212471