Flowma TGF94/95 Thermal Mass Flowmeter

 

Flowma TGF94/95 Thermal Mass Flowmeter

Flowma TGF94/95 Hot wire thermal air velocity transmitter working at a constant Temp. using King’s law heat balance equation for:

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.

Feature

• 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]、[f /s]、[Nm3/h]、[Nm/s]、[L/min]、[m3/min]
• LCD Display of air velocity and temperature
• LCD Display of cumulative flow : m3, L (Option)

Application

• Exhaust gas removal
• Dust environment
• Slightly corrosive environment
• Burner feeder
• Biotechnology industry
• Factory building air intake
• Exhaust calculation

Specification 

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°)	4 … 20 mA / 0 … 10 V / RS-485 / Impulse
Signal
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
Accuracy	Voltage output : ≧100 KΩ
Accuracy	±1.5% F.S. (Option ±1%)
Temp. influence	0.1% / °C
Repeatability	0.5%
Power supply	DC 24 V±10%
Current consumption	＜0.3 A
Overvoltage protection	DC : ＜40 V
Electrical connections	M12 connector / M16 metal cable gland
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
Fixed seat	1/2″PT movable thread
Installation	Duct type
	Remote type
IP rating	IP67(Probe)；IP65(Housing)
Electrical protection	■ Reverse polarity ■ Over-voltage ■ Short-circuit
Certification	CE
Housing Material	Aluminum alloy
Probe Material	SUS304
Weight	FTM94 : 720 g
	FTM95 : 832 g