Flowma TGF94/95 Remote Thermal Mass Flowmeter

TGF94/95 Hot wire thermal air velocity transmitter working at a constant Temperature.

Description

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


Can be calculated from the formula characteristic curve of constant Temperature. 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 aluminum alloy case, fit in variety harsh environment
  • Easy to install, high accuracy, long-term stability
  • Switchable physical quantities : m/s, ft/s, Nm3/h, Nm/s, L/min, m 3/min (Air velocity & volume)
  • LCD Display of air velocity and temperature
  • LCD Display of cumulative flow : m 3, L (Option)

Application

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

Specification

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)(Cumulative flow)(Option)
Minimum initial value 0.15 Nm/s

Output

Installation angle effect <3% of the measured value
(When the installation angle<10°)
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

Enviromental

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

Material

Housing Aluminum alloy
Probe SUS304
Weight FTM94 : 720 g
FTM95 : 832

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