IFM Electronic SU7000 Manuel utilisateur

Operating instructions

Ultrasonic flow rate sensor

SU7000

SU8000

SU9000

80011616 / 00 11 / 2014

Contents

1 Preliminary note��4

1�1 Symbols used ��4

1�1 Warning signs used ��4

2 Safety instructions ��4

3 Functions and features ��5

4 Function��6

4�1 Process measured signals ��6

4�2 Volumetric flow monitoring��6

4�3 Consumed quantity monitoring (totaliser function) ��6

4�3�1 Consumed quantity monitoring with pulse output��7

4�3�2 Consumed quantity monitoring with preset counter ��7

4�4 Temperature monitoring��7

4�5 Volumetric flow or temperature monitoring / switching function��7

4�5�1 Hysteresis function ��8

4�5�2 Window function ��8

4�6 Volumetric flow or temperature monitoring / analogue function��9

4�6�1 Voltage output 0 �� 10 V (example volumetric flow monitoring)��9

4�6�2 Current output 4 �� 20 mA (example volumetric flow monitoring)��10

4�7 Start-up delay ��10

4�8 Customer-specific calibration (CGA) ��13

5 Installation��14

5�1 Recommended mounting position ��14

5�2 Non recommended installation position��15

5�3 Installation in pipes ��16

6 Electrical connection��16

7 Operating and display elements ��18

8 Menu��20

8�1 Menu structure��20

8�2 Explanation of the menu��21

9 Set-up ��22

10 Parameter setting ��22

10�1 Parameter setting in general ��23

1 Preliminary note

1.1 Symbols used

►Instructions

> Reaction, result

[…] Designation of keys, buttons or indications

→Cross-reference

Important note

Non-compliance can result in malfunction or interference�

1.1 Warning signs used

CAUTION

Warning of personal injury�

Slight reversible injuries may result�

2 Safety instructions

• Please read this document prior to set-up of the unit� Ensure that the product is

suitable for your application without any restrictions�

• If the operating instructions or the technical data are not adhered to, personal

injury and/or damage to property can occur�

• Improper or non-intended use may lead to malfunctions of the unit or to un-

wanted effects in your application� That is why installation, electrical connec-

tion, set-up, operation and maintenance of the unit must only be carried out by

qualified personnel authorised by the machine operator�

• In order to guarantee the correct condition of the device for the operating time it

is necessary to use the device only for media to which the wetted materials are

sufficiently resistant (→ Technical data).

• The responsibility whether the measurement devices are suitable for the

respective application lies with the operator� The manufacturer assumes no

12 Technical data��31

13 Factory setting ��32

liability for consequences of misuse by the operator� Improper installation and

use of the devices results in a loss of the warranty claims�

• For medium temperatures above 50 °C some parts of the housing can heat up

to over 65 °C� Moreover, during installation or in case of a fault (e�g� housing

damage) media under high pressure or hot media can leak from the system� To

avoid personal injury, take the following measures:

►Install the unit according to the applicable rules and regulations�

►Ensure that the system is free of pressure during installation�

►Protect the housing against contact with flammable substances and

unintentional contact� To do so, equip the unit with suitable protection (e�g�

protective cover)�

►Do not press the pushbuttons manually; instead use another object (e�g�

ballpoint pen)�

3 Functions and features

Pressure Equipment Directive (PED): The units comply with section 3, article 3 of

the Directive 97/23/EC and must be designed and manufactured for non-super-

heated liquids of group 2 fluids in accordance with the sound engineering practice�

The unit monitors liquid media�

It detects the 3 process categories volumetric flow, consumed quantity, medium

temperature�

Application area

• Water

• Glycol solutions

• Low viscosity oils (viscosity: 7��40 mm²/s at 40°C)

• High viscosity oils (viscosity: 30��68 mm²/s at 40°C)

Selection of the medium to be monitored → 10.5.9�

4 Function

4.1 Process measured signals

The unit displays the current process values�

It generates 2 output signals according to the parameter setting�

OUT1: 3 selection options Parameter setting

- Switching signal for volumetric flow quantity limit value (→ 10.2.1)

- or pulse signal for quantity meter (→ 10.3.1)

- or switching signal for preset counter (→ 10.3.2)

OUT2: 4 selection options Parameter setting

- Switching signal for volumetric flow quantity limit value (→ 10.2.2)

- or switching signal for temperature limit value (→ 10.4.1)

- or analogue signal for volumetric flow quantity (→ 10.2.3)

- or analogue signal for temperature (→ 10.4.2)

- or input for external reset signal (InD) (→ 10.3.7)

If not used as an output, OUT2 (pin 2) can instead be used

as an input for an external reset signal

(→ 10.3.7)

4.2 Volumetric flow monitoring

The volumetric flow is monitored by an ultrasonic measuring system, the meas-

ured signals are evaluated by the electronics�

The signals for measuring the volumetric flow quantity can be provided as follows:

1� Two switching signals for volumetric flow quantity limit values on output 1 and

output 2 (→ 4.5)�

2� An analogue signal proportional to the volumetric flow (4��20 mA or 0��10 V)

on output 2 (→ 4.6)�

4.3 Consumed quantity monitoring (totaliser function)

The unit has an internal quantity meter which continuously totals the volumetric

flow quantity� The sum corresponds to the current consumed quantity since the

last reset�

• The current meter reading can be displayed�

• In addition the value before the last reset is saved� This value can also be

displayed�

The meter saves the totalled consumed quantity every 10 minutes� After

a power failure this value is available as the current meter reading� If a

time-controlled reset is set, the elapsed time of the set reset interval is

also saved� So the possible data loss can be maximum 10 minutes�

The meter can be reset as follows:

→ 10.3.4 Manual counter reset�

→ 10.3.5 Time-controlled counter-reset�

→ 10.3.7 Configure meter reset using an external signal�

4.3.1 Consumed quantity monitoring with pulse output

Output 1 indicates a counting pulse when the set volumetric flow quantity has

been reached (→ 10.3.1)�

4.3.2 Consumed quantity monitoring with preset counter

Output 1 switches when the set volumetric flow quantity has been reached (→

10�3�2)� 2 types of monitoring are possible:

1� Time-dependent quantity monitoring (→ 10.3.5 Time-controlled counter-reset):

- If the quantity x is reached during t, output 1 switches and remains switched

until the counter is reset�

- If the quantity x is not reached after the time t has elapsed, the meter is auto-

matically reset and counting starts again; output 1 does not switch�

2� Non time-dependent quantity monitoring (→ 10.3.6 Deactivate meter reset)

- If the quantity x is reached, output 1 switches and remains switched until the

counter is reset�

4.4 Temperature monitoring

The following signals are provided for temperature monitoring:

1� A switching signal for temperature limit values on output 2 (→ 4.5)�

2� An analogue signal proportional to the temperature (4��20 mA or 0��10 V) on

output 2 (→ 4.6)�

4.5

Volumetric flow or temperature monitoring / switching

function

OUTx changes its switching status if it is above or below the set switching limits

(SPx, rPx)� The following switching functions can be selected:

4.5.1 Hysteresis function

Normally open: [OUx] = [Hno]

Normally closed: [OUx] = [Hnc]

First the set point (SPx) is set, then the

reset point (rPx) with the requested

difference�

When SPx is adjusted, rPx is

changed automatically; the differ-

ence remains constant�

Example of volumetric flow monitoring

HY = hysteresis

4.5.2 Window function

















 





Normally open: [OUx] = [Fno]

Normally closed: [OUx] = [Fnc]

The width of the window can be set by

means of the difference between SPx

and rPx�

SPx = upper value

rPx = lower value

Example of volumetric flow monitoring

FE = window

When set to the window function the set and reset points have a fixed hys-

teresis of 0�25 % of the final value of the measuring range� This keeps the

switching status of the output stable if the volumetric flow varies slightly�

4.6 Volumetric flow or temperature monitoring / analogue

function

4.6.1 Voltage output 0 ... 10 V (example volumetric flow monitoring)

Factory setting Measuring range scaled

U [V]

0 MEW Q

U [V]

0 MEWAEPASP Q

MEW = final value of the measuring range

ASP = analogue start point: determines at which measured value the output signal is 4 mA

AEP =

analogue end point: determines at which measured value the output signal is 20 mA�

Minimum distance between ASP and AEP = 20 % of the measuring range�

In the set measuring range the output signal is between 0 and 10V�

For an output signal > 10 V the flow quantity is above the final value of the meas-

uring range�

4.6.2 Current output 4 ... 20 mA (example volumetric flow monitoring)

Factory setting Measuring range scaled

I [mA]

0 MEW Q

I [mA]

0 MEWAEPASP Q

MEW = final value of the measuring range

ASP = analogue start point: determines at which measured value the output signal is 4 mA

AEP =

analogue end point: determines at which measured value the output signal is 20 mA�

Minimum distance between ASP and AEP = 20 % of the measuring range�

In the set measuring range the output signal is between 4 and 20 mA�

For an output signal > 20 mA the flow quantity is above the final value of the

measuring range�

4.7 Start-up delay

The start-up delay dST influences the switching outputs of the volumetric

flow monitoring�

If the start-up delay is active (dST > 0), note: as soon as the volumetric flow

exceeds 0�5 % of the final value of the measuring range, the following processes

are carried out:

> The start-up delay is activated�

> The outputs switch as programmed:

ON for NO function, OFF for NC function�

After the start of the start-up delay there are 3 options:

1� The volumetric flow increases quickly and reaches the set point / good range

within dST�

> Outputs remain active�

2� The volumetric flow increases slowly and does not reach the set point /good

range within dST�

> Outputs are reset�

3� Volumetric flow quantity falls below 0�5 % of the final value of the measuring

range within [dST]�

> Outputs are reset at once; dST is stopped�

Example: dST for hysteresis function

Condition Reaction

1Volumetric flow quantity Q reaches 0�5

% of VMR

dST starts, output becomes active

2 dST elapsed, Q reached SP output remains active

3 Q below SP but above rP output remains active

4 Q below rP output is reset

5 Q reaches again 0�5 % of VMR dST starts, output becomes active

6 dST elapsed, Q has not reached SP output is reset

7 Q reaches SP output becomes active

Ce manuel convient aux modèles suivants

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