1

2

3

4

5

6

7

8

9

20

index_04

High-Precision Air/ Gas Velocity Transmitter for Industrial Applications

The FF86 series air velocity transmitters were developed to obtain accurate measuring results over a wide range of velocities and temperature. High-quality hot film sensor elements based on cutting-edge thin film technology ensure maximum sensitivity, even at lowest mass flows. At the same time, the innovative probe design produces reliable measuring results at high flow velocities of up to 40m/s (8000ft/min).

The integrated temperature compensation minimizes the temperature cross-sensitivity of the FF86 series which, combined with the robust mechanical design, allows it to be used at process temperatures between-40 to 120°C (-40 to 248°f).

In addition to air velocity & temperature values, the transmitter calculates the volumetric flow rate in m3/min or ft3/min. the cross section of the duct needs to be determined for this purpose and the volumetric flow rate can displayed and directed to one of the analogue outputs.

The configuration software included in the scope of supply allows choosing the appropriate output parameter and freely scaling the display range & signal level of the two analogue outputs. In addition user-friendly calibration of the air velocity & temperature and the adjustment of key parameters (e.g. response time of the velocity measurement, low flow cutoff points, etc.) are supported as well.

An optional illuminated display with two control buttons integrated in the cover is available. In addition, this enables changes of the configuration to be made directly on the unit.

The FF86 series has a robust metal housing to protect against possible damage in rough industrial environments. There are four different models, providing a comprehensive range of mounting options;

Model A for wall mounting - Model B for duct mounting - Model C with remote probe - Model E with remote probe, pressure-tight up to 10bar (145psi)

Model A for wall mounting

Model B for duct mounting

Model C with remote probe

The FF86 series can be used to measure the velocity of other gasses as well, although a correction has to be applied to the unit at the factory.

Typical Applications:

Monitoring incoming and outgoing air (energy management) in HVAC applications
Filter monitoring and laminar flow control in cleanrooms
Exhaust systems; exhaust hoods and glove boxes in the pharmaceutical, bio and semiconductor industries
Mass flow measurements during incineration processes
Monitoring and measurement of compressed air systems
Air conveying systems - wind tunnels and climate simulators

Feature:

High accuracy
Working range 0...40 m/s (0...8000 ft/min) and -40...120 °C (-40...248 °F)
Measurement of air velocity and temperature calculation of volumetric flow rate low dependence on angle of inflow probe diameter 8 mm (0.3") remote probe up to 10 m (32.8 ft) easy mounting and maintenance correction for pressure, humidity and media low flow cut-off pressure tight up to 10 bar (145 psi)

SI and US units selectable

Technical Data

Measuring value
Air velocity
Working range	0...2m/s (0...400ft/min) 0...10m/s (0...2000ft/min) 0...40m/s (0...8000ft/min)
Accuracy "in are at 25°C (77°f)"	0.06...2m/s (12...400ft/min)	±0.03m/s /6ft/min
At 45% RH & 1013 hPa 0.2...	0.15...10m/s (30...2000ft/min) 40m/s (40...8000ft/min)	±(0.10m/s/ 20ft/min +1% of measuring value) ±(0.10m/s/ 20ft/min +1% of measuring value)
Uncertainty of factory calibration	± (I 96 of measuring value, min. 0.015 m/s (3 ft/min))
Temperature dependence electronic	Typ. -0.005% of measuring value /°C
Temperature dependence probe	± (0.1 % of measuring value/°C)
Dependence	Of angle of inflow: Of direction of inflow	<3% for a < 20° <3%
Response time	<I.5...40s (configurable)
Temperature working range	Probe: Probe cable: Electronic: Electronic with display:	-40...120 °C (-40...248 °F) -40...105 °C (-40...221 °F) -40...60 °C (-40...140 °F) -30...60 °C (-22_140 °F)
Accuracy at 20 °C (68 °F)	±0.5 (±0.9 °F)
Temperature dependence	Typ. -0.01 °C /°C
electronics Response time τ	10s

pH Sensors   I   PH Electrode   I   Industrial Dip   I   Industrial pH Sensors   I   Sterilizable pH Sensors   I   Online PH Indicators / Controllers / Transmitters   I   pH Meters   I
PH Bench Meter With 0.001 Resolution and Stability Indicator   I   Slim pH Meters   I   Conductivity Sensor   I   Conductivity Sensors   I   Conductivity Sensor - Industrial Pipeline   I   Conductivity Sensor - Industrial Dip   I   Sanitary Conductivity Sensor   I   Conductivity Indicating Controller Cum Transmitter   I   Conductivity Meter   I   Multi-ranging Conductivity, TDS, NaCl, Temperature Meter   I   Multi - Ranging Conductivity Meter   I   Dissolved Oxygen Sensors   I Galvanic-Maintenance Free DO2 Electrode  I   Polarographic DO2 Electrode   I   MSSet DO Sensor   I   DO ( Dissolved Oxygen ) Meter   I   Dissolved Oxygen Meters   I   Table Top Dissolved Oxygen Meters   I   Portable Dissolved Oxygen Meters   I   Ultrasonic Level Transmitters   I   Electromagnetic Flow Meters   I   pH Transmitters   I   On-line Panel Mounted PH Indicator cum Transmitter   I   Online pH Transmitters   I   Oxidation Reduction Potential   I   Oxidation Reduction Potential Sensor (I) – ( ORP Sensors )   I   Oxidation Reduction Potential Sensor – ( ORP Sensors )   I   Online Oxidation Reduction Potential Indicator, Controller and Transmitter   I  Oxidation Reduction Potential Transmitters - ( ORP Transmitters )   I   Ozone Amperometric Sensors   I   Dissolved Chlorine Sensors   I  TDS Indicating Controller   I   Magnetic Flowmeter   I   Dissolved Chlorine Dioxide Sensors   I   Dissolved Oxygen Transmitter - ( DO Transmitter )   I   Conductivity Transmitters MS-CT-211T II  Temperature And Air Velociy Transmitters DUW 221 II   Clamp On Ultrasonic Flow Meters II   Process Conductivity / TDS Controllers & Transmitter II   MS Controller Bsed Conductivity Indicators / Controller II   Electromagnetic Flow Meters MS FL 0117 II   High Precision Air / Gas Velocity Transmitter II   Magnetic Float Operaded, Guided Level Switch II   MS Controller Based Conductivity / TDS II   MS controller Based PH Indicator / Controller II   MS Controller Based ORP Indicatorsc / Controller II   Digital pH Indicator CUM Transmitter II   MS Controller Based pH Meters MS pH 644 II   Digital Bench Top pH Meters II   Digital Bench Top TDS / Conductivity Meter II   MS Controller Based TDS Indicators / Contorller II   UPVc Electromagnetic Flow Meters MS FL 0117 I   Home   I   About Us   I   Contact Us   I
Enquiry   I   Sitemap

Designed by : MID Hosted by : GID Promoted by : PBD