E+E Elektronik EE75 Manuel utilisateur

BA_EE75 // v14 // Modification rights reserved// 192310

User Manual

EE75

Air / Gas Velocity Sensor

Hardware and Software

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 a regular 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 B digital device, pursuant to part 15 of the FCC

Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This

equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions,

may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a

particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined

by turning the equipment off and on, the user is encouraged to try to correct theinterference by one or more of the following

measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

- Consult the dealer or an experienced radio/TV technician for help.

Caution:

Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to

operate this device.

EMC note Canada (ICES-003):

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

CONFIGURATION

SOFTWARE

HARDWARE

TABLE OF CONTENTS

1. General 3

1.1 Symbol Assertion 3

1.2 Safety Instructions 3

1.3 Installing the Enclosure 3

2. Product Description 3

3. Installation 4

3.1 Installing the Enclosure 4

3.2 Mounting Type T2 (Duct Mounting) 4

3.2.1 Mounting with Brackets 4

3.2.2 Mounting with a Flange 4

3.3 Mounting Type T3 (Remote Probe) 5

3.3.1 Installing the enclosure 5

3.3.2 Installing the probe 5

3.4 Mounting Type T26 (Remote Probe, Pressure-tight up to 10 bar / 145 psi) 5

3.4.1 Installing the Enclosure 5

3.4.2 Installing the Probe 5

4. Electrical Connections 7

4.1 Connection Diagram 7

4.2 Connection Diagram with Plug Connections (Optional) 7

4.3 Assignment USB - Interface Cable 7

5. Operating Components 8

5.1 Circuit Board 8

5.2 Jumpers for Setting the Output Signal 8

5.3 Jumpers for Setting the Velocity Response Time 8

5.4 Display Module with Buttons (Optional) 9

6. Velocity / Temperature Calibration 10

6.1 Selecting the Appropriate Calibration Method

(1-point or 2-point Calibration) 10

6.1.1 General Information on 1-point v/T Calibration: 10

6.1.2 General Information on 2-point v/T Calibration: 11

6.2 Velocity Calibration 11

6.2.1 Calibration Procedure Using Configuration Software 11

6.2.2 Calibration Procedure Using Buttons on the Display Module (Optional) 11

6.3 Temperature Calibration 11

6.3.1 Calibration Procedure Using Configuration Software 11

6.3.2 Calibration Procedure Using Buttons on the Display Module (Optional) 11

6.4 Resetting to Factory Calibration 12

6.4.1 Resetting v/T to Factory Calibration: 12

6.4.2 Resetting v to Factory Calibration: 12

6.4.3 Resetting T to Factory Calibration: 12

7. Self-Help / Maintenance 13

8. Spare Parts / Accessories 13

9. Technical Data 13

1. General Information 14

2. Installation 14

3. Menu Items 16

3.1 File 16

3.2 Help 16

4. EE75 Configurator 16

4.1 Start 16

4.2 Analog 17

4.3 Display 17

4.4 Response Time 17

4.5 Cross Section 18

4.6 Probe Cable 18

4.7 Switching Off 19

4.8 Media Correction 19

4.9 Calibration 19

4.9.1 Information on 1-point v/T Calibration 20

4.9.2 Information on 2-point v/T Calibration 20

4.9.3 V Calibration Procedure Using the Configuration Software 20

4.9.4 T Calibration Procedure Using the Configuration Software 20

4.9.5 Activating Factory Calibration 20

4.10 Measuring Values 21

4.11 Information 21

Hardware

1. General

This manual forms part of the scope of supply and serves to ensure proper handling and

optimum functioning of the instrument. Consequently, it is essential to read the manual before

commissioning. The manual is also to be brought to the attention of any person involved in

transport, setup, operation, maintenance or repair.

This manual must not be used for competition purposes without the written consent of E+E

Elektronik and must not be forwarded to third parties. Copies for personal use are permitted.

All information, technical data and illustrations contained in this manual are based on the

information available at the time of publication.

1.1 Symbol Assertion

This symbol indicates a safety instruction.

Safety instructions must always be followed. Failure to do so can result in injuries or damage,

for which E+E Elektronik accepts no liability.

This symbol indicates a note.

These notes should be observed to achieve optimum functioning of the equipment.

1.2 Safety Instructions

• Excessive mechanical stress and improper use must be avoided.

• As the sensor element is sensitive to electrostatic discharge (ESD), appropriate

protective measures should be taken when touching it.

• Installation, electrical connection, maintenance and commissioning must only be

carried out by qualified personnel.

1.3 Installing the Enclosure

E+E Elektronik products are developed with due consideration to all major environmental issues.

Bearing this in mind, care should also be taken to avoid polluting the environment when

disposing of equipment. When disposing of the sensor, the individual components must be

sorted according to type. Electronic components must be kept together and disposed of in the

proper manner for electronic scrap.

2. Product Description

The EE75 velocity sensors were developed to obtain accurate measuring results over a wide

range of velocities and temperatures.

They have a robust metal enclosure to protect them against possible damage in rough

industrial environments and come in three different typs, providing a comprehensive range of

mounting options:

• Type T2 for duct mounting

•Type T3 with remote probe

•Type T26 with remote probe, pressure-tight to 10 bar (145psi)

Hardware

3. Installation

Before starting the installation please make sure that the upper and

lower modules of the enclosures are not mixed up! Only with identical

serial numbers the function of the sensor can be guaranteed within the

specifications (see chapter 9. “Technical Data”).

3.1 Installing the Enclosure

1. On delivery, the two mounting brackets (on the left and right of the

enclosure base plate) are attached to the lower part of the enclosure

with two screws each, facing inwards. For installation, the brackets

can be swung out and screwed down (see drawing).

2. The dimensions of the mounting holes are as shown in the adjacent

drawing.

3. The bottom part of the enclosure is fitted using 4 screws

(not included).

Max. screw diameter 4.5 mm (0.18"), for example 4.2 x 38 mm

(0.17 x 1.5")

- DIN 7983H screws.

4. Connecting the sensor (see chapter 4 - Electrical Connections)

5. Lift the upper part of the enclosure into position and screw it into place

using the four Allen screws included (Allen key provided).

3.2 Mounting Type T2 (Duct Mounting)

There are two types of duct mounting:

3.2.1 Mounting with Brackets

Refer to chapter 3.1

OR:

3.2.2 Mounting with a Flange

The stainless steel mounting flange allows for the sensor to

be mounted on the outside wall of the duct in which the

measurement takes place and adjusted to any insertion depth.

All dimensions in mm

Cross-section of bore:

2 (0.1")

90°

∅4.5

(0.2")

12 (0.5")

Selected probe length

∅8

(0.3")

145 (5.7")

115 (4.5")

60 (2.4")

40 (1.6")

129 (5.1")

Bore diameter: 5.1 (0.2") Sealing

rubber

2(0.1")

80 (3.1")

Hardware

3.3 Mounting Type T3 (Remote Probe)

3.3.1 Installing the enclosure

Refer to chapter 3.1

3.3.2 Installing the probe

Refer to chapter 3.2.2 - Mounting with a Flange

3.4 Mounting Type T26 (Remote Probe, Pressure-

tight up to 10 bar / 145 psi)

3.4.1 Installing the Enclosure

Refer to chapter 3.1

3.4.2 Installing the Probe

General safety instructions for installation using pressure-

tight movable screw connections

As the sensing probe can be exposed to very high pressures in the

measuring environment, there is a risk of sudden, unintentional

expulsion of the probe during or after improper installation. Special

care should therefore be taken when working on or in the vicinity of the

sensing probe. Do not, under any circumstances, bend directly over the

probe.

When installing the sensor probe, be careful not to damage the surface

of the sensing probe.

This could damage the seals (resulting in leakage and pressure loss)

or cause problems when removing the probe (may get stuck).

Before installing the sensing probe, make sure it is free from any

impurities such as grease or dirt.

Installing the probe

There should be a shut-off valve on both sides of the probe insert when

installing the probe. This makes it easy to remove the sensor for

maintenance and calibration.

1. Install the probe with the shut-off valves closed.

2. Insert the sensor probe into the process.

3. To ensure the probe is installed securely, the lock nut must be

tightened to a specified torque of 10 Nm.

If no torque spanner is available, tighten the lock nut by hand as far

as possible and then turn it a further ~ 90° with an appropriate

open-ended spanner.

An inadequate torque results in a low tension force (fixing force)

on the clamping sleeve. This brings with it a risk of injury due to

sudden expulsion of the sensing probe. An excessive torque can

lead to permanent deformation of the clamping sleeve and

sensing probe, making removal and re-installation more difficult

or even impossible.

Selected probe length

(0.5")

∅8

(0.3")

Selected probe length

(0.5")

∅8

(0.3")

shut-off

valve

shut-off

valve

clamping

ring

1/2" ISO

or NPT

lock nut

sealing ring

bore ∅

> 9.2mm (0.4")

Hardware

Removing the probe

1. If the sensor probe is installed in a pressure chamber, make sure

that the pressure in the chamber and the ambient pressure are

in equilibrium before removing the probe.

2. Hold the sensing probe/enclosure firmly. (Attention: Do not bend the

connection cable)

3. Slowly loosen the lock nut using a spanner (spanner width 24).

4. The entire probe can now be removed.

General installation instructions:

Scaling the insertion depth on the probe

The insertion depth can be read off directly on the probe. The depth is

measured from the centre of the velocity measuring slot (= middle of

the sensor). The scaling on the probe has an offset of 30mm (1.2”). This

allows for the insertion depth "X" (= distance between middle of sensor

and mounting plate) to be read off directly above the screwed cable

gland (see sketch).

Flow direction

Flow direction:

The arrow on the sensor probe should be pointing exactly in the

direction of flow!

indicates the orientation of the tip of the arrow.

indicates the orientation of the tail of the arrow.

Type T2 (duct mounting):

Type T3 and T26 (remote probe):

To be able to read off the orientation of the remote sensor head beyond

the measuring line, a mark has been punched at the end of the

sensing probe. This corresponds with:

flow

corresponds to the tip of the arrow

Scale

Hardware

4. Electrical Connections

4.1 Connection Diagram

USB-interface

Supply

Analogue outputs

Measuring probe

Brown

Green

White

Red

Shielding

Black

Red

Orange

Shield

Black

4.2 Connection Diagram with Plug Connections (Optional)

4.3 Assignment USB - Interface Cable

Colour of wire: Signal: Terminal no.:

Green D+ 11

White D- 12

Red Vbus 13

Black USB-GND 14

Shielding

Description: Connection assignment:

VCC 5

GND 4

GND 3

OUT2 2

OUT1 1

Description: Connection assignment:

D+ 3

D- 1

Vbus 2

GND 4

Euro-Standard

Cable connection to the plugs should be as indicated by the numbers above.

Coupling for supply

and analogue outputs

(front view)

Plug for USB interface

(front view)

Hardware

5. Operating Components

5.1 Circuit Board

5.2 Jumpers for Setting the Output Signal

If the sensor output signal is set from current to voltage by use of the configuration

software, additionally 2 jumpers must be set on the circuit board as follows:

EE75-TxA6

(for current output, e.g. 4 - 20 mA)

EE75-TxA3

(for voltage output, e.g. 0 - 10 V)

5.3 Jumpers for Setting the Velocity Response Time

The EE75 allows users to set the velocity response time:

a) Setting the velocity response time using jumpers:

Jumper position (Also see chapter 5.1 - Circuit Board):Response time:

No jumper 1.5 s

Jumper at pos. 1 2 s (factory setting)

Jumper at pos. 2 4 s (factory setting)

Jumper at pos. 3 10 s (factory setting)

b) Setting the velocity response time using configuration software:

The response time (τ90) can also be set to any value between 1.5 and 40 s using the

configuration software, without changing the jumpers on the circuit board.

See Configuration Software, chapter 4.4 - Response Time

Jumper# Function

I Current output signal

S Signal

U Voltage output signal

1 (arrow) τ90-1-velocity (2s)

2 τ90-2-velocity (4s)

3 τ90-3-velocity (10s)

4 Free

5 Free

Jumper

(detail A)

Detail A:

Plug connection

blue

I S U

Hardware

5.4 Display Module with Buttons (Optional)

4. MIN / MAX Function:

The MIN / MAX function can be used to record the lowest and highest values measured

for each measurand since the last reset or the last interruption of the power supply.

Highest measured value: MAX

1. Select the required measurand (UP/DOWN button)

2. To display the maximum value, press the UP button and hold it for approx. 5 s.

3. To return to the normal operating mode, press the UP button again and hold it

for approx. 5 s.

Lowest measured value: MIN

1. Select the required measurand (UP/DOWN button)

2. To display the minimum value, press the DOWN button and hold it for approx. 5 s.

3. To return to the normal operating mode, press the DOWN button again and hold

it for approx. 5 s.

By pressing the UP and DOWN buttons simultaneously in normal operating mode the

stored MIN/MAX values for all measurands can be reset by selecting "CLEAR MIN/MAX

BUFFER"; recording can then be restarted (for details see chapter 5.3 - Display Module

with Buttons, point 7 - Menu navigation).

5. Measured Value:

The measured value of the respective measurand is indicated.

6. Status Line:

The status line indicates the sensor's current operating status:

- no indication: Normal operating mode / measurement in progress

- MIN or MAX: See point 4 - MIN/MAX function

- CAL LOW: V or T calibration routine for the low adjustment point selected.

- CAL HIGH: V or T calibration routine for the high adjustment point selected.

7. Menu Navigation:

Pressing the UP and DOWN buttons simultaneously for approx. 5 s during a measurement

(in normal operating mode) a 4-line menu is displayed with the following options:

- CALIBRATION: (Calibration)

- FACTORY SETTINGS: (Factory settings)

- CLEAR MIN/MAX BUFFER: (Clear Min/Max buffer)

- EXIT: (returns to normal operating mode without executing any

of the menu items)

Pressing the UP and DOWN buttons moves the cursor “>” on the left-hand side of the

display up and down to select one of the adjacent menu items.

Pressing the UP and DOWN buttons simultaneously for approx. 5 s confirms the selection

and executes the selected menu item.

RH: 63.0%

MAX

RH: 63.0%

MIN

v: 5.43 m/s

SI SI US

v Velocity m/s ft/min

T Temperature °C °F

v Volume m³/min ft³/min

1. Measurand:2. Unit:3. Measurand Selection:

Pressing the ∆or ∇button

switches between the various

physical quantities (measurands).

1. Measurand

2. Unit

5. Measured value

6. Status line

3. Measurand selection and

4. Min/Max function

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