IFM LR8010 Manuale utente

Operating instructions

Electronic level sensor

LR8010

80290527 / 00 02 / 2020

Contents

1 Preliminary note��4

1�1 Symbols used ��4

2 Safety instructions ��4

3 Items supplied��5

4 Functions and features ��6

4�1 Operation with coaxial probe ��6

4�2 Applications ��6

4�2�1 Restriction of the application area ��7

5 Function��8

5�1 Measuring principle ��8

5�2 Features of the unit��8

5�2�1 Easy set-up��8

5�2�2 Display functions ��9

5�2�3 Switching functions��9

5�2�4 Offset for indicating the real level in the tank��10

5�2�5 Probes for different tank heights�� 11

5�2�6 Safe state �� 11

5�2�7 IO-Link function ��12

5�3 Password protection against inadvertent manipulation ��12

6 Installation��12

6�1 Installation location / environment ��12

6�1�1 Coaxial probe ��13

6�2 Probe installation ��13

6�2�1 Attaching the probe��13

6�2�2 Installation of the coaxial pipe ��14

6�3 Shortening of the probe ��15

6�3�1 How to shorten the probe and to determine its length��15

6�3�2 Shortening of the coaxial pipe ��16

6�3�3 Determination of the probe length L if the coaxial probe is mounted��16

6�4 Installation of the unit with coaxial probe in the tank ��17

6�5 Alignment of the sensor housing ��17

7 Electrical connection��18

8 Operating and display elements ��19

9 Menu��20

9�1 Menu structure��20

9�2 Password protection ��21

10 Parameter setting ��21

10�1 Parameter setting in general ��22

10�2 Basic settings (unit on delivery)��23

10�2�1 Enter probe length ��23

10�2�2 Setting to the medium��24

10�2�3 Configuration of the display ��24

10�3 Offset setting��24

10�4 Define overflow switch point (OP) ��25

10�5 Set the output signals of the outputs OUT1��OUT3 ��25

10�5�1 Setting of the output function��25

10�5�2 Set the switching limits (hysteresis function) ��25

10�5�3 Set the switching limits (window function) ��25

10�5�4 Setting of the switch-off delay��26

10�5�5 Response of the outputs in case of a fault ��26

10�5�6 Setting of the delay time after signal loss ��26

10�5�7 Reset all parameters to factory setting ��26

10�5�8 Enter probe length ��26

10�5�9 Adjustment to the medium to be detected ��27

10�6 Changing the password��27

10�7 Enter password [KEy�C]��27

11 Operation ��28

11�1 Operating indicators ��28

11�2 Read set parameters ��29

11�3 Changing the display unit in the Run mode ��29

11�4 Error indications��30

11�5 Output response in different operating states ��31

12 Technical data and scale drawing��31

13 Setting ranges��31

14 Maintenance ��32

15 Factory setting ��33

1 Preliminary note

1.1 Symbols used

►Instruction

> Reaction, result

[…] Designation of keys, buttons or indications

→Cross-reference

Important note

Non-compliance may result in malfunction or interference�

Information

Supplementary note�

CAUTION

Warning of personal injury�

> Slight reversible injuries may result�

2 Safety instructions

• The device described is a subcomponent for integration into a system�

- The system architect is responsible for the safety of the system�

- The system architect undertakes to perform a risk assessment and to create

documentation in accordance with legal and normative requirements to be

provided to the operator and user of the system� This documentation must

contain all necessary information and safety instructions for the operator, the

user and, if applicable, for any service personnel authorised by the architect

of the system�

• Read this document before setting up the product and keep it during the entire

service life�

• The product must be suitable for the corresponding applications and

environmental conditions without any restrictions�

• Only use the product for its intended purpose (→ Functions and features).

• Only use the product for permissible media (→ Technical data).

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

injury and/or damage to property may occur�

• The manufacturer assumes no liability or warranty for any consequences

caused by tampering with the product or incorrect use by the operator�

• Installation, electrical connection, set-up, operation and maintenance of the

product must be carried out by qualified personnel authorised by the machine

operator�

• Protect units and cables against damage�

• The unit complies with the standard EN 61000-6-4� The unit may cause radio

interference in domestic areas� If interference occurs, the user must take

appropriate actions�

• The surface of the unit may get hot if the switching outputs are overloaded�

There is a risk of burns� However, only overload will cause hot surfaces�

3 Items supplied

• Level sensor LR8010 with integrated overflow prevention according to WHG*

• Operating instructions

In addition, the following is necessary for installation and operation:

• 1 probe

• 1 coaxial pipe

• 1 socket

* Building authority approval according to the German Federal Water Act (WHG)�

Only use probes and coaxial pipes from ifm electronic gmbh! The optimum

function is not ensured when using components from other manufacturers�

Available accessories: www�ifm�com

4 Functions and features

The unit continuously detects the level of liquids in tanks and generates output

signals according to the parameter settings�4 switching outputs are available:

• 3 freely programmable switching outputs (NC / NO)

• 1 switching output for overflow prevention according to WHG* (NC)

* Building authority approval according to the German Federal Water Act (WHG)�

If the unit is used as overflow prevention with building authority approval

according to the German Federal Water Act (WHG), please observe the

corresponding chapter (= Technical description) of the documentation!

4.1 Operation with coaxial probe

Only operate the device with coaxial probe! Operation with single probe is

not supported by this unit version�

The coaxial probe is made up of an inner probe and an outer probe pipe (coaxial

pipe)� The probe is centred in the coaxial pipe by one or several spacers�

When using a coaxial probe, media with a low dielectric constant

(e�g� oil and oil-based media) are detected in addition to aqueous media�

Furthermore, no lateral minimum distances to tank walls and objects in the

tank are required (→ 6 Installation)�

4.2 Applications

• Water, water-based media

• Oils, oil-based media

• Medium temperature 0…80 °C

• Tank pressures: -0�5��4 bar

Application examples:

• Detection of power steering oil

• Monitoring of brake fluid

• Detection of water-glycol mixtures

• Monitoring of hydraulic oil in a hydraulic power unit

4.2.1 Restriction of the application area

Incorrect measurements or signal loss may be caused by the following

media:

- Highly absorbing surfaces (e�g� foam)�

- Intensely bubbling surfaces�

- Media which are very inhomogeneous, separate from each other thus

forming separation layers (e�g� oil layer on water)�

►Check the function by performing an application test�

►Installation in a steady area (→ 6.1)�

> In case of signal loss, the unit displays [E�033] and switches the

outputs to a defined state (→ 5.2.6 Safe state)�

• Only operate the device with coaxial probe! Operation with single probe is not

supported by this unit version�

• Use for fluids only! Make sure that the coaxial probe will not be blocked or

clogged (e�g� with solid particles or media that tend to deposit)�

Maximum viscosity: 500 mPa · s

• If the unit is to be used in acids or alkalis (e�g� in hygienic areas or in

electroplating applications): first check the compatibility of the product materials

with the media to be monitored (→ Technical data sheet).

5 Function

5.1 Measuring principle

Fig. 5-1 Fig. 5-2

The unit operates on the principle of guided wave radar� It measures the level

using electromagnetic pulses in the nanosecond range�

The pulses are transmitted by the sensor head and guided along the probe

(Fig� 5-1)� When they hit the medium to be detected they are reflected and guided

back to the sensor (Fig� 5-2)� The time between transmitting and receiving the

pulse directly relates to the travelled distance (D) and the current level� The

reference for distance measurement is the lower edge of the process connection�

By using a coaxial probe, the guided wave runs only along the inside of

the coaxial pipe� This allows installation where space is very restricted

(→ 6 Installation)�

5.2 Features of the unit

5.2.1 Easy set-up

• When operating voltage is applied to the unit for the first time, the probe length

and the medium to be detected must be entered� Then the unit is ready for

operation (→ 10.2)�

• If necessary, parameters for the output signals and optimisation of the

monitoring functions can be set (→ 10.2.3 to → 10.3)�

• All settings can also be carried out before installation of the unit�

• Reset to the factory settings is possible�

• The unit can be locked electronically (electronic lock) to prevent unintentional

settings (→ 10.1)� In addition, the sensor can be protected by a password as

an option(→ 5.3)�

5.2.2 Display functions

The unit displays the current level, either in cm, inch or in percent of the final

value of the measuring range� Factory setting: cm� The display unit is defined by

programming (→ 10.2.3 Configuration of the display)�In the Run mode, it can be

temporarily switched between length indication (cm / inch) and percentage:

►Briefly press [Set]�

> The selected unit is displayed for 30 s, the corresponding LED is lit� With each

push of the button the display type is changed�

The set unit of measurement and the switching status of the outputs are indicated

by LEDs�

5.2.3 Switching functions

The unit signals via 4 switching outputs OUT1��OUT3 and OUT-OP that a set limit

level has been reached or that the level is below the limit value�

The output OUT-OP (OP = overflow prevention) functions as integrated overflow

prevention� For safety reasons it is fixed to NC (normally closed principle)�

According to the German building authority approval (WHG), its function is

constantly monitored�

Output OUT-OP has a fixed hysteresis of 10 mm�

For outputs OUT1��OUT3, the following switching functions can be selected:

• Hysteresis function / normally open (Fig� 5-3): [OUx] = [Hno]�

• Hysteresis function / normally closed (Fig� 5-3): [OUx] = [Hnc]�

First the set point (SPx) is set, then the reset point (rPx) with the requested

difference�

• Window function / normally open (Fig� 5-4): [OUx] = [Fno]�

• Window function / normally closed (Fig� 5-4): [OUx] = [Fnc]�

The width of the window can be set by means of the difference between

FHx and FLx� FHx = upper value, FLx = lower value�

Fig. 5-3 Fig. 5-4























Fno

Fnc

L = level; HY = hysteresis; FE = window

For the switching outputs OUT1��OUT3, a switch-off delay of max� 60 s

can be set (e�g� for especially long pump cycles)�

5.2.4 Offset for indicating the real level in the tank

The zone between tank bottom and lower edge of the probe can be entered as

offset value [OFS]� So display and switch points refer to the actual level�

For [OFS] = [0]: The reference point is the lower edge of the measuring

probe�

The set offset only refers to the display on the unit� It has no effect on the

process value transmitted via IO-Link� The OFS parameter, however, is

correctly transmitted via IO-Link and can therefore be taken into account

(→ 5.2.7)�

Indice

Manuali Strumento di misura popolari di altre marche

Suaoki

Suaoki D40 Manuale utente

Elster

Elster BK-G1.6 Manuale utente

Endress+Hauser

Endress+Hauser Deltabar FMD71 Manuale

Duratool

Duratool D03128 Manuale utente

Vega

Vega VEGAPULS 65 Manuale utente

Tonghui

Tonghui TH2618B Manuale utente

Tenmars

Tenmars TM-801 Manuale utente

MSR

MSR 145 Manuale utente

TPS

TPS WP-82 Manuale utente

ELMETRON

ELMETRON CP-511 Manuale utente

PCB Piezotronics

PCB Piezotronics 003C30 Manuale utente

Tenma

Tenma 72-10465 Manuale utente

Endress+Hauser

Endress+Hauser Proline Promag 50 Specifiche tecniche

Siemens

Siemens SITRANS F Coriolis FCT030 Manuale elenco delle parti

KLINGER

KLINGER CMF V Series Manuale utente

EXFO

EXFO FTB-2 Manuale operativo e di manutenzione

Keysight

Keysight M8290A Manuale utente

ADTEK

ADTEK MW-5 Manuale utente