Miniature Air Velocity Transmitter for Measurement of Lowest Velocity

Description

The EE576 is a compact air velocity transmitter designed for measurement of lowest velocity. Equipped with a newly developed sensor head and utilizing the proven E+E hot-film element, already tested a million times in the automotive industry, these transmitters are less sensitive to dust and dirt than conventional hot-wire elements. This is reflected in the excellent reproducibility and proven long-term stability of the measuring results.

Features

• excellent price/performance ratio
• compact housing
• easy and fast mounting

Applications

• laminar flow control
• filter monitoring
• exhaust systems
• glove boxes

Air Velocity Transmitter for HVAC Applications
 

Description

EE65 air velocity transmitters are ideal for accurate  ventilation control applications. They are operating
on an innovative hot film anemometer principle. The E+E thin film sensor guarantees very good accuracy at low air velocity , which is not possible for conventional anemometers with commercial temperature sensors or NTC bead thermistors.

Features

• low angular dependence
• easy installation
• adjustable to application requirements

Applications

• HVAC
• process and environmental control

High-Precision Air / Gas Velocity Transmitter for Industrial Applications

The EE75 series air velocity transmitters were developed to obtain accurate measuring results over a wide range of velocities and temperatures.

A high-quality hot film sensor element based on cutting-edge thin film
technology ensures 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 minimises the temperature cross-sensitivity of the EE75 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 and temperature values, the transmitter calculates the volumetric flow rate in m³/h or ft³/min. The cross section of the duct needs to be determined for this purpose and the volumetric flow rate can be displayed and directed to one of the analogue outputs.

Features

• high accuracy
• working range 0…40 m/s (0…8000ft/min) and -40…120°C(-40…248°F)
• measurement of air velocity and temperature
• calculation of volumetric flow rate
• low dependence of angle of inflow
• probe diameter 8mm (0.3”)
• remote probe up to 10m (32.8ft)
• easy mounting and maintenance
• correction for pressure, humidity and media
• low flow cutt-off
• SI and US units selectable

Application

• 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 measurement during incineration processes
• monitoring and measurement of compressed air systems
• air conveying systems
• wind tunnels and climate simulators

Inline Flowmeter for compressed air and gases DN15 (1/2“) – DN80 (3“)

The inline flow meter EE771/EE772, based on the measurement principle of thermal mass flow, is ideally suited for the measurement of flow in pipelines DN15 (1/2”) up to DN80 (3”). Measurement of for instance the usage of compressed air, nitrogen, CO2, oxygen, helium or other non-corrosive, non-flammable gasses.

The flowmeters are setting new standards in terms of measurement accuracy and reproducibility thanks to their applicationspecific adjustment during production. As such, the EE771/EE772 is adjusted under a pressure of 7 bar.

The unique mounting concept with a mounting valve permits rapid installation and removal of the device for periodical calibration. It simultaneously ensures high measurement accuracy through exact and reproducible positioning in the pipe.

Features

• high accuracy ± 1.5% of reading
• exceptional reproducibility
• quick sensor exchange at line pressure
• broad working range of 1 : 400
• very service friendly
• Bus interface for Modbus RTU or M-Bus

Applications

• Measurement of consumption of compressed air
• Compressed air counter
• Mass flow measurement of industrial gases

Flow measurement with sensors ZS25 at working temperatures up to +500 °C optional with integrated and configurable transducer UFA
Advantages

• low starting value
• large measuring range span
• maximum fatigue strength thanks to vane wheel which is easy on the bearings
• corrosion resistant
• sterilisable
• high working temperature and pressure ranges
• operates to a large extent irrespective of density and
• composition of the gas
• low pressure drop
• easy adjustment to process parameter

Series VF

• Light Weight
• 100 Reading Memory
• Large LCD Display
• Accuracy 3%
• Cable and Software for Data Download Included
• Measures Flow, Velocity and Temperature
• Supply or Exhaust Measurement

The Series VF Air Flow Capture Hood accurately measures air volume flowing through registers, diffusers and grills. The Air Flow Capture Hood is light weight and is easily handled by one person for measuring supply or exhaust airflow. The large LCD simultaneously displays airflow, velocity and temperature and can store up to 100 readings in a non volatile memory for later analysis. Later analysis of the Air Flow Capture Hood data is easily downloaded to your computer with the included RS-232 cable and software. Each Series VF Air Flow Capture Hood includes airflow measuring base, 2’ x 2’ (610 mm) hood, brackets, RS-232 cable, software, nylon carrying case, batteries, and calibration data sheet.

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The robust multi functional hand-held meets the highest requirements and comes with a wide range of accurate probes that fit various applications.
Use touch-screen navigation to show, up to three measurement values simultaneously on the capacitive TFT display.

Features

• Data logging
• Internal memory for 2 million measured values
• 23 physical quantities
• Capacitive TFT touch screen
• Displays measurands simultaneously
• Real-time HOLD / MIN / MAX / AVG readout
• Integrated air pressure sensor
• User friendly operation
• Free data management software