E+E Elektronik EE650 User manual

GENERAL

The EE650 transmitter is designed for accurate measurement of air velocity in HVAC. It operates on the hot-film anemometer

principle and features the innovative, very robust E+E VTQ sensing element manufactured in thin-film technology combined with

state-of-the-art transfer molding.

The construction of the sensing head leads to a very low angular dependence which facilitate the installation. The mounting flange

allows for easy adjustment of the immersion depth.

The measuring range and the response time of EE650 can be selected with jumpers on the electronics board, see below

“Settings”.

EE650 is dedicated for heating, ventilation and air conditioning applications. For special applications do not hesitate to contact the

manufacturer or their local distributor.

CAUTION

• Accurate measurement results are conditioned by the correct positioning of the sensing probe in the air stream. Best accuracy

is achieved in laminar flow.

• Observe the minimum inlet and outlet path length, see page 4.

• Avoid mechanical stress onto the probe and mainly onto the sensing head.

• Observe the humidity working range 5…95% RH, non-condensing.

• Avoid installation in corrosive environment, as this may lead to sensor destruction.

CONNECTING DIAGRAM

Analogue output

GND

V+

V / mA

1 ... V+ = supply voltage

2 ... GND = ground

3 ... AV = analogue output air velocity

Power supply

24 V AC/DC ±20% b ... brown

g ... green

y ... yellow

w ... white

s ... black

s w y g b

Remote sensor probe

RS485 Interface

V+

A (=D+)

RS485 B (=D-)

GND

Power supply

24 V AC/DC ±20 %

S1 S2

ON S1: Response time t90

ON: slow

OFF: fast

S2: Termination resistor

120 Ohm

ON/OFF

EE650 - Air Velocity Transmitter for HVAC Applications

USER‘S GUIDE

ANALOGUE SETTINGS

For performing EE650 settings via EE-PCS Product Configuration Software (download from www.epluse.com/configurator) the

working range jumper must be on HI.

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

t90

MED

Jumper t90

SLOW 4 sec.

(factory setting)

Jumper I

CURRENT

(factory setting)

no jumper

FAST 1 sec.

Jumper U

VOLTAGE

Jumper HI

0...20 m/s (0...4000 ft/min)

(factory setting)

Jumper MED

0...15 m/s (0...3000 ft/min)

Jumper LO

0...10 m/s (0...2000 ft/min)

Selection of response time t90

Selection of output signal

Selection of ouput signal

Selection of measuring range

DIGITAL SETTINGS

Hardware

The bus termination can be realized with the 120 Ohm resistor on board, slide switch S2.

Very important:

For proper function the power supply must be strong enough to ensure supply voltage within the specified range (see technical data)

at any time and at all devices in the bus. This is particularly relevant when using long and thin cables which can cause high voltage

drop; please note that a single EE650 requires peak current of 150 mA.

Address Setting

Address Switch

Address setting via EE-PCS Product Conguration Software:

All DIP switches at position 0 → address has to be set via PCS

Modbus (Slave device): factory setting EE650: 65 (permitted values: 1…247).

BACnet (Master device): factory setting EE650: 65 (permitted values: 0…127).

Example: Slave address is set via conguration software.

Address setting via DIP switch:

Modbus (Slave device): Setting the DIP switches to any other address than 0, overrules the slave

address set via configuration software (permitted values: 1…247).

BACnet (Master device): Setting the DIP switches to any other address than 0, overrules the slave

address set via configuration software.

BACnet Note: permitted values are 0…127.

The 8th bit of the DIP switches is ignored (ID 127 = 0111 111).

To set address 0 via DIP switches, the 8th bit shall be set to 1 (ID 0 = 1000 0000).

Example: Slave address set to 11 (= 0000 1011 binary).

00000000

11010000

FLOAT (read register):

Function code /

[HEX]

Parameter

name

31003 0x03EA Temperature [°C]

31005 0x03EC Temperature [°F]

31041 0x0410 Airow [m/s]

31043 0x0412 Airow [ft/min]

SHORT (read register)3):

Function code /

[HEX]

Parameter

name

34002 0x0FA1 Temperature* [°C]

34003 0x0FA2 Temperature** [°F]

34021 0x0FB4 Airow* [m/s]

34022 0x0FB5 Airow*** [ft/min]

* Values are stored with the scale 1:100 (e.g.: 2550 is equivalent to 25.5 °C)

** Values are stored with the scale 1:50 (e.g.: 2550 is equivalent to 51 °F)

*** Values are stored with the scale 1:1

INFO (read register):

Function code /

[HEX]

Parameter

name

30001 0x00 Serial number (as ASCII)

30009 0x08 Firmware version

INTEGER (write register):

Function code /

[HEX]

Parameter

name

60001 0x00 Slave-ID* (modbus address)

60002 0x01 Modbus protocol settings3)

* If the ID is set via DIP-Switch the response will be NAK.

Please see PICS (Product Implementation Conformance Statement) - available on www.epluse.com/EE650

BACnet Setup

Modbus Setup

1) Register number starts from 1

2) Register number starts from 0

3) For Modbus protocol setting please see Application Note Modbus (www.epluse.com)

MODBUS RTU EXAMPLE

Example of MODBUS RTU command for reading the temperature (oat value) T = 26,652524 °C from the register 0x03EA

Device EE650; slave ID 65

Reference document, chapter 6.3: http://www.modbus.org/docs/Modbus_Application_Protocol_V1_1b.pdf

Request [Hex]: 41 03 03 EA 00 02 EB 7B

Modbus ID

address

Function

code

Starting

address Hi

Starting

address Lo

No. of

Request [Hex]: 41 03 03 EA 00 02 EB 7B

Response [Hex]: 41 03 04 38 5F 41 D5 0A E3

Modbus ID

address

Function

code Byte count Register 1

value Hi

value Lo

value Hi

value Lo CRC

Response [Hex]: 41 03 04 38 5F 41 D5 0A E3

Protocol setting:

Address, baudrate, parity and stop bits can be set via:

1. Product Congurator Software (available on www.epluse.com/ee650)

2. Modbus protocol (please see Application Note Modbus (available on www.epluse.com/ee650)

CONFIGURATION AND ADJUSTMENT

The EE650 as ordered is ready for use immediately and requires no configuration by the user. If required, the optional Configuration

Adapter Cable and the E+E Product Configuration Software (EE-PCS) can be used for changing the factory setup as well as for adju-

sting of the air velocity measurement.

Note: The EE650 must not have any additional power supply when using the Conguration Adapter Cable HA011066.

HA011066

For product data sheets EE-PCS please see www.epluse.com.

The E+E Product Configuration Software (EE-PCS) is free and can be downloaded from www.epluse.com/configurator.

TECHNICAL DATA

Measuring range

Working range 1) 0...10 m/s (0...2000 ft/min)

0...15 m/s (0...3000 ft/min)

0...20 m/s (0...4000 ft/min) (factory setting)

Accuracy at 20 °C 2) (68 °F), 0.2...10 m/s (40...2000 ft/min) ± (0.2 m/s (40 ft/min) + 3 % of m. v.)

45 % RH, 1013 hPa 0.2...15 m/s (40...3000 ft/min) ± (0.2 m/s (40 ft/min) + 3 % of m. v.)

0.2...20 m/s (40...4000 ft/min) ± (0.2 m/s (40 ft/min) + 3 % of m. v.)

Response time τ90

1) typ. 4 sec. (factory setting) or typ. 1 sec. at constant temperature

Output

Analogue 1) 0 - 10 V -1 mA < IL< 1 mA

0...10 m/s / 0...15 m/s / 0...20 m/s 4 - 20 mA (factory setting) RL< 500 Ω(linear, 3-wires)

Digital interface RS485 with max. 32 devices on one bus

Protocol Modbus RTU or BACnet MS/TP

General

Power supply (Class III) 24 V AC/DC ± 20 %

Current consumption

Electrical connection screw terminals max. 1.5 mm2 (AWG 16)

Cable gland M16x1.5

Electromagnetic compatibility EN61326-1 EN61326-2-3

Industrial Environment

Enclosure material Polycarbonate, UL94V-0 approved

Protection class Enclosure IP65 / NEMA 4, remote probe IP20

Temperature range working temperature probe -25 ... 50 °C (-13...122 °F)

working temperature electronic -10 ... 50 °C (14...122 °F)

storage temperature -30 ... 60 °C (-22...140 °F)

Working range humidity 5...95 % RH (non-condensing)

1) Selectable by jumper, only for analogue output

2) The accuracy statement includes the uncertainty of the factory calibration with an enhancement factor k=2 (2-times standard deviation).

The accuracy was calculated in accordance with EA-4/02 and with regard to GUM (Guide to the Expression of Uncertainty in Measurement).

AC supply DC supply

Analogue ouput max. 170 mA max. 70 mA

RS485 max. 120 mA max. 50 mA

DIMENSIONS MM (INCH)

Ø > 16

FOR CONDUIT

INSTALLATION

Cable gland

M16x1,5

~110 or 210

Ø > 13

80,6

101

155

15 155

Cable gland

M16x1,5

Type - Duct mount

Mounting flange

Type - Remote sensor probe

SCOPE OF SUPPLY

• EE650 Transmitter according to ordering guide

• Cable gland (two pieces at output RS485 for daisy chain wiring)

• Mounting flange

• Mounting materials

• Protection cap

• Quick guide

• Two self-adhesive labels for configuration changes (see user guide at www.epluse.com/relabeling)

• Test report according to DIN EN10204 - 2.2

ACCESSORIES

• USB configuration adapter HA011066

• Product configuration software EE-PCS (free download: www.epluse.com/EE650)

• Power supply adapter V03 (see data sheet Accessories)

MOUNTING

DRILLING IN THE WALL OF THE DUCT FOR INSTALLING THE MOUNTING FLANGE

Air flow

>16 (0.63")

60 (2.4")

The arrow engraved on the sensing head of EE650 indicates the direction of the air stream during factory adjustment. When

installing the EE650 probe, make sure that the arrow matches exactly the flow direction.

Air flow

CORRECT INCORRECT

The mounting flange allows for precise setting of the EE650 immersion depth in a duct. The entire sensing head must be in the air

flow to be measured.

Immersion depth = 30 % - 50 %

of the duct diameter

duct diameter

CORRECT INCORRECT

Air flow

POSITIONING OF AIR VELOCITY SENSOR IN A VENTILATION DUCT

The reliable and accurate measurement of air velocity depends on the correct positioning of the sensor in the ventilation duct.

Accurate measurements are only possible if the air velocity probe is positioned at a location with a laminar (not-turbulent) flow.

The required length of the calming section after a fault is a function of the tube diameter D. For a rectangular channel a x b applies:

<6D

>3D

>6D

Mounting the sensing probe in the middle of the

channel.

The optimal position is after the filter.

Please note sufficient distance.

Positioning the probe ahead of diffusor, at a place

with high flow rate.

Positioning the probe at a location with a laminar (to-

turbulent) flow.

Turbulent flows are caused by pipe bends, branches,

behind flaps, flans, air heaters, air coolers or cross-

sectional changes.

MAINTENANCE OF THE E+E AIR VELOCITY TRANSMITTERS

Due to the absence of moving parts, the E+E air velocity transmitters are not subject to wear. The construction (shape, dimensions

and materials) of the hot film air velocity sensor is per se highly insensitive to dust and dirt. No maintenance is required under

normal environmental conditions. For operation in polluted environment it is advisable to periodically clean the sensing head by

washing it in isopropyl alcohol, preferably in an ultrasound cleaner. Alternatively shake it gently few minutes in a pot with isopropyl

alcohol and let it dry free. Do not touch or rub the sensor and do not use any mechanical tools for cleaning.

INFORMATION +43 7235 605 0 / [email protected]

E+E Elektronik Ges.m.b.H.

Langwiesen 7 • A-4209 Engerwitzdorf

Tel: +43 7235 605-0 • Fax: +43 7235 605-8

[email protected] • www.epluse.com

LG Linz Fn 165761 t • UID-Nr. ATU44043101

Place of Jurisdiction: A-4020 Linz • DVR0962759

BA_EE650_e // v1.4 // Modication rights reserved

E+E Elektronik Ges.m.b.H. doesn‘t accept warranty and liability claims neither upon this publication nor in case of improper treatment

of the described products.

The document may contain technical inaccuracies and typographical errors. The content will be revised on aregular basis. These

changes will be implemented in later versions. The described products can be improved and changed at any time without prior notice.

EMC note USA (FCC):

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules.

These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial

environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with

the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is

likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

EMC note Canada (ICES-003):

CAN ICES-3 (A) / NMB-3 (A)

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