The EE650 air flow sensor is dedicated for accurate and reliable measurement in building automation and ventilation applications.
EE650 employs the new VTQ air flow sensor element, which operates on the thermal anemometer principle and is manufactured by E+E in state-of-the-art thin film technology.
Due to its innovative design, the VTQ air flow sensor element is very robust and highly insensitive to pollution, which leads to outstanding long-term performance.
The measured data is available either on an analogue voltage or current output, user selectable, or on the RS485 interface with Modbus RTU or BACnet MS/TP protocol.
The enclosure design and the mounting flange included in the scope of supply allow for easy installation or replacement. The configuration and adjustment of the EE650 can be comfortably performed on the electronics board or via digital interface.
- Best accuracy and long term stability
- High resistance to pollution and mechanical stress
- Measuring range 0.2 - 10/15/20 m/s (40 - 2000/3000/4000 ft/min), user selectable
- Current and voltage outputs, selectable
- RS485 interface with Modbus RTU or BACnet MS/TP
- Duct mount and remote probe versions
- Easy installation
- Digital interface for adjustment by user
- Ventilation systems
- Process control
0...10 m/s (0...2000 ft/min)Measuring range - user selectable
0...15 m/s (0...3000 ft/min)
0...20 m/s (0...4000 ft/min)
0.2...10 m/s ±(0.2 m/s + 3 % of mv)Accuracy at 20 °C (68 °F), 45 % RH, 1013 hectopascal
0.2...15 m/s ±(0.2 m/s + 3 % of mv)
0.2...20 m/s ±(0.2 m/s + 3 % of mv)
typ. 4 sec or typ. 1 sec.Response time - user selectable
0-10 V and 4-20 mAOutput Analogue
Modbus RTU or BACnet MS/TPOutput Digital
24 V AC/DCSupply
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- Bayonet screws
- open/closed with a ¼ rotation
- Appropriate for US mounting requirements
- Knockout for ½” conduit fitting
- External mounting holes
- Mounting with a closed cover
- Electronics protected against construction site pollution
- Easy and fast mounting
- Jumper adjustment
- Measuring range, output signal and response time selectable by jumper
- Electronics on the underside of the PCB
- Optimum protection against mechanical damage during installation
- E+E Air velocity sensor VTQ
- High insensitivity to pollution
- Long-term stable
- Measurement from 0.2 m/s (40 ft/min)
EE650 Datasheet(815.98 kb)
EE650 Quick Guide(985.73 kb)
EE650 Manual(1290.46 kb)
EE650/EE660 PICS - BACnet Protocol Implementation(209.88 kb)
Relabeling in case of product configuration change(1339.66 kb)
Modbus Application Note AN0103(158.85 kb)
Sensor for Very Low Air Velocity
Optimised for clean rooms and laminar flow monitoring, with excellent accuracy down to 0.15 m/s (30 ft/min). Analogue outputs or RS485 interface with Modbus or BACnet protocol.
HVAC Miniature Air Flow Probe
Very robust and highly insensitive to pollution. Measurement range up to 20m/s (4000 ft/min). Voltage or Modbus RTU output.
What is the difference between Modbus RTU and Modbus TCP/IP?
The main difference is the hardware interface. The Modbus RTU protocol runs on RS485 Hardware while Modbus TCP/IP protocol on Ethernet hardware.
What is the difference between a BTL listed and a non-listed BACnet product.
All BACnet products are tested at E+E. The BTL listed E+E products have been additionally tested by the BACnet Testing Laboratories.
How can I clean the air velocity sensing element?
Due to its design and materials, the E+E thin film sensing element for air velocity is highly insensitive to pollution. When operaten in very dusty or diry environment, cleaning might be necessary. See section maintenance at downloads.epluse.com/fileadmin/data/miscellaneous/datasheet_air_velocity_measurement_basics.pdf
How can I replace the air velocity sensing element or the air velocity sensing probe?
This is not possible. Return the device to E+E for service.
What kind of calibration certificate is included in the standard scope of supply of the E+E air velocity sensors?
The standard scope of supply of E+E air velocity sensors includes an inspection certificate according DIN EN 10204 - 2.2 or DIN EN 10204 - 3.1, depending on the model. Please see the product data sheet and operation manual for the type of certificate. For details on calibration certificates please see page 5 in www.kalibrierdienst.at/fileadmin/content/White_Paper_Calibration_and_traceability_in_measuring_technology.pdf
Can E+E supply an accredited calibration certificate with the air velocity sensor?
Accredited calibration certificate for air velocity is available upon request, please see our calibration website.
How I can readjust my E+E air velocity sensor?
For readjusting the air velocity sensor you need first of all a reliable reference. This would be a wind channel. For the readjustment procedure please see the operation manual of the specific E+E air velocity sensor available at www.epluse.com
In case an approriate air velocity reference in not available, please return the device to E+E for service.
What is the difference between a 2 wire and a 3 wire current output?
Transmitter with "two-wires" technology receive the power from the process, and the signal is carry on return wire (closed current loop). With technology "three-wires" the power supply is separate from current output: 2 wires are the power supply and third carry the signal.