Endress+Hauser NAR 300 Technische Daten

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Brief Operating Instructions

NAR300 system

Oil leak detector float sensor

These Instructions are Brief Operating Instructions; they are

not a substitute for the Operating Instructions pertaining to

the device.

Detailed information about the device can be found in the

Operating Instructions and the other documentation:

Available for all device versions via:

• Internet: www.endress.com/deviceviewer

• Smart phone/tablet: Endress+Hauser Operations App

KA01577G/00/EN/02.23-00

71614572

2023-05-15

NAR300 system

2 Endress+Hauser

Order code:

Ext. ord. cd.:

Ser. no.:

www.endress.com/deviceviewer Endress+Hauser

Operations App

XXXXXXXXXXXX

XXXXX-XXXXXX

XXX.XXXX.XX

Serial number

A0023555

NAR300 system Table of contents

Endress+Hauser 3

Table of contents

1 Document information ............................................................ 4

1.1 Symbols used ......................................................................... 4

1.2 Documentation ........................................................................ 6

2 Basic safety instructions .......................................................... 7

2.1 Basic instructions regarding safety ..........................................................7

2.2 Intended use .......................................................................... 7

2.3 Workplace safety ...................................................................... 7

2.4 Operational safety ......................................................................7

2.5 Product safety ......................................................................... 8

3 Product description ............................................................... 9

3.1 Product design ........................................................................ 9

4 Incoming acceptance and product identification ................................. 10

4.1 Incoming acceptance ................................................................... 10

4.2 Product identification .................................................................. 10

4.3 Manufacturer address .................................................................. 16

4.4 Storage and transport .................................................................. 17

5 Installation ...................................................................... 18

5.1 Mounting the NAR300 system ........................................................... 18

5.2 Adjustment ......................................................................... 26

6 Electrical connection ............................................................ 28

6.1 NRR261-4/A/B/C wiring ............................................................... 28

6.2 NRR262-4/A/B/C wiring ............................................................... 30

6.3 NRR261-5 wiring ..................................................................... 32

6.4 Wiring diagram ...................................................................... 34

6.5 Operating principles of alarm activation ..................................................... 36

Document information NAR300 system

4 Endress+Hauser

1 Document information

1.1 Symbols used

1.1.1 Safety symbols

DANGER

This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in

serious or fatal injury.

WARNING

This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in

serious or fatal injury.

CAUTION

This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in

minor or medium injury.

NOTICE

This symbol contains information on procedures and other facts which do not result in

personal injury.

1.1.2 Electrical symbols

Alternating current

Direct current and alternating current

Direct current

Ground connection

A grounded terminal which, as far as the operator is concerned, is grounded via a grounding

system.

Protective earth (PE)

Ground terminals that must be connected to ground prior to establishing any other

connections.

The ground terminals are located on the interior and exterior of the device:

• Interior ground terminal: protective earth is connected to the mains supply.

• Exterior ground terminal: device is connected to the plant grounding system.

1.1.3 Tool symbols

Phillips head screwdriver

Flat blade screwdriver

NAR300 system Document information

Endress+Hauser 5

Torx screwdriver

Allen key

Open-ended wrench

1.1.4 Symbols for certain types of information and graphics

Permitted

Procedures, processes or actions that are permitted

Preferred

Procedures, processes or actions that are preferred

Forbidden

Procedures, processes or actions that are forbidden

Tip

Indicates additional information

Reference to documentation

Reference to graphic

Notice or individual step to be observed

Series of steps

Result of a step

Visual inspection

Operation via operating tool

Write-protected parameter

1, 2, 3, ...

Item numbers

A, B, C, ...

Views

Safety instructions

Observe the safety instructions contained in the associated Operating Instructions

Temperature resistance of the connection cables

Specifies the minimum value of the temperature resistance of the connection cables

Document information NAR300 system

6 Endress+Hauser

1.2 Documentation

The following documents can be found in the Download area of our website

(www.endress.com/downloads).

For an overview of the scope of the associated Technical Documentation, refer to the

following:

W@M Device Viewer (www.endress.com/deviceviewer): Enter the serial number from

nameplate

1.2.1 Technical Information (TI)

Planning aid

The document contains all the technical data on the device and provides an overview of the

accessories and other products that can be ordered for the device.

1.2.2 Brief Operating Instructions (KA)

Guide that takes you quickly to the 1st measured value

The Brief Operating Instructions contain all the essential information from incoming

acceptance to initial commissioning.

1.2.3 Operating Instructions (BA)

The Operating Instructions contain all the information that is required in various phases of

the life cycle of the device: from product identification, incoming acceptance and storage, to

mounting, connection, operation and commissioning through to troubleshooting,

maintenance and disposal.

1.2.4 Safety Instructions (XA)

Depending on the approval, the following Safety Instructions (XA) are supplied with the

device. They are an integral part of the Operating Instructions.

The nameplate indicates the Safety Instructions (XA) that are relevant to the device.

NAR300 system Basic safety instructions

Endress+Hauser 7

2 Basic safety instructions

2.1 Basic instructions regarding safety

2.1.1 Requirements for the personnel

The personnel must fulfill the following requirements for its tasks:

‣Trained, qualified specialists must have a relevant qualification for this specific function

and task.

‣Are authorized by the plant owner/operator.

‣Are familiar with federal/national regulations.

‣Before starting work, read and understand the instructions in the manual and

supplementary documentation as well as the certificates (depending on the application).

‣Follow instructions and comply with basic conditions.

2.2 Intended use

Application and measured materials

Measuring devices for use in hazardous areas, in hygienic applications or in applications

where there is an increased risk due to process pressure are labeled accordingly on the

nameplate.

Take the following measures to ensure that the device is used under appropriate conditions

while in operation:

‣Only use the measuring device in full compliance with the specifications on the nameplate

and the general conditions listed in the operating instructions and supplementary

documentation.

‣Check the nameplate specifications to ensure that the ordered device can be put to its

intended use in the approval-related area (e.g. explosion protection, pressure vessel

safety).

‣When not using this device at atmospheric temperature, it is important to comply with the

basic requirements listed in the relevant documentation for the device.

‣Protect the device permanently against corrosion caused by environmental effects.

‣Observe the limit values in the "Technical Information."

The manufacturer is not liable for damage caused by improper or unintended use.

2.3 Workplace safety

When working with the device:

‣Wear personal protection gear required by your regional/national regulations.

2.4 Operational safety

Risk of injury!

‣Operate the device only if it is in proper technical condition, free from errors and faults.

‣The operator is responsible for interference-free operation of the device.

Basic safety instructions NAR300 system

8 Endress+Hauser

Hazardous area

To eliminate danger to persons or the facility when the device is used in the hazardous area

(e.g. explosion protection):

‣Check the nameplate to verify if the device ordered can be put to its intended use in the

hazardous area.

‣Observe the specifications in the separate supplementary documentation that is an integral

part of these instructions.

2.5 Product safety

The NAR300 system is designed in accordance with GEP (Good Engineering Practice) to meet

the latest safety requirements, and it has been tested to ensure that it is ready to be used

safely before being shipped from the factory. The NAR300 system meets general safety

standards and legal requirements.

2.5.1 CE mark

This measurement system meets the legal requirements of the applicable EU directive. These

are listed in the corresponding EU Declaration of Conformity along with the standards

applied.

Endress+Hauser confirms successful testing of the device by affixing to it the CE mark.

NAR300 system Product description

Endress+Hauser 9

3 Product description

The NAR300 system is installed in a pit inside the oil-retaining wall of a tank or in a sump pit

near a plant or a pump yard, and it provides the ultimate leak detection function for oils, such

as petrochemicals and vegetable oils. Sensors with two different detection principles, a

conductive type and a tuning fork type, are used to monitor detection conditions

independently. In addition, a two-stage alarm logic allows for an extremely low false-positive

alert, ensuring the safety of the tank yard with a precise and simple device configuration.

NOTICE

TIIS specifications

These operating instructions are not intended for products with TIIS specifications.

‣If you are using a product with TIIS specifications, download and refer to

KA01577G/33/JA/01.22-00 or an earlier version from our website

(www.endress.com/downloads).

3.1 Product design

The NAR300 system is configured mainly in combination with the following products.

1. 2. 3. 4.

Power: Green

Alarm: Red

AC90-250V Output Monitor

Power

NRR262

Sensor

Input

Delay

Timer

(second)

A0047557

 1 Product design

1 Float sensor NAR300

2 Ex d [ia] Converter NRR261

3 Ex [ia] Converter NRR262

4 Ex [ia] sensor I/F Ex box

Incoming acceptance and product identification NAR300 system

10 Endress+Hauser

4 Incoming acceptance and product identification

4.1 Incoming acceptance

Upon receipt of the goods, check the following:

• Are the order codes on the delivery note and the product label identical?

• Are the goods undamaged?

• Do the nameplate data match the ordering information on the delivery note?

• If required (see nameplate): Are the Safety Instructions (XA) enclosed?

If one or more of these conditions are not satisfied, contact your Endress+Hauser Sales

Center or distributor.

4.2 Product identification

The following options are available for identification of the device:

• Nameplate specifications

• Extended order code on the delivery note (including details of the device specification

codes)

• Entering the serial number from the nameplate in W@M Device Viewer

(www.endress.com/deviceviewer) will display all the information about the device.

Note that the information on a nameplate may be changed without notice when

credentials and certificates are updated.

4.2.1 Nameplate specifications

Order code

Ser. No.

Cable Length

A0038619

 2 NAR300 model nameplate

1 Order code

2 Serial number

3 Cable length (order code 040)

4 Explosion-proof performance

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