Endress+Hauser NAR 300 User manual

Products Solutions Services
Operating Instructions
NAR300 system
Oil leak detector float sensor
BA00402G/00/EN/22.19
71452803
2019-09-07

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
1.
3.
2.
A0023555

NAR300 system Table of contents
Endress+Hauser 3
Table of contents
1 About this document ................ 4
1.1 Document function ..................... 4
1.2 Symbol .............................. 4
1.3 Documentation ........................ 6
2 Basic safety instructions ............ 8
2.1 Requirements for personnel ............... 8
2.2 Designated use ........................ 8
2.3 Workplace safety ....................... 8
2.4 Operational safety ...................... 9
2.5 Product safety ......................... 9
3 Product description ................ 10
3.1 Product design ........................ 10
3.2 Technical data ........................ 10
3.3 Process condition ...................... 12
3.4 Delivery example of each order code ........ 13
3.5 Operating conditions ................... 16
3.6 Gasoline application .................... 16
4 Incoming acceptance and product
identification ..................... 17
4.1 Incoming acceptance ................... 17
4.2 Product identification .................. 17
4.3 Manufacturer contact address ............ 26
4.4 Storage and transport .................. 26
5 Installation ....................... 28
5.1 NAR300 system dimensions ............. 28
5.2 Installation considerations ............... 32
5.3 Mounting of the NAR300 system .......... 34
5.4 Adjustment .......................... 39
6 Electrical connection .............. 40
6.1 Grounding cable ....................... 40
6.2 NRR261-2/4/A/B/C wiring .............. 41
6.3 NRR262-2/4/A/B/C wiring .............. 43
6.4 Wiring of NRR261-3/5 ................. 45
6.5 Connection diagram .................... 47
6.6 Principle of alarm operation .............. 48
7 Diagnosis and troubleshooting ..... 49
7.1 Fail safe (alert when oil is not leaking) ...... 49
7.2 Alert delay (no alert when oil is leaking) ..... 49
7.3 Operation confirmation ................. 50
7.4 Cleaning the conductivity sensor .......... 54
7.5 Firmware history ...................... 54
8 Maintenance ...................... 55
8.1 Maintenance work ..................... 55
8.2 Endress+Hauser services ................ 55
9 Repair ............................ 56
9.1 General information on repairs ............ 56
9.2 Spare parts .......................... 56
9.3 Endress+Hauser services ................ 56
9.4 Return .............................. 57
9.5 Disposal ............................ 57
10 Accessories ....................... 58
10.1 Float guide .......................... 58
10.2 U bolts and cable gland (waterproof) ....... 59
Index .................................. 60

About this document NAR300 system
4 Endress+Hauser
1 About this document
1.1 Document function
These Operating instructions contain all the information required during 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 Symbol
1.2.1 Safety symbols
Symbol Meaning
DANGER
DANGER!
This symbol alerts you to a dangerous situation. Failure to avoid this situation will
result in serious or fatal injury, as well as a risk of fire or explosion.
WARNING
WARNING!
This symbol alerts you to a dangerous situation. Failure to avoid this situation will
result in a risk of serious or fatal injury, fire or explosion.
CAUTION
Note
This symbol alerts you to a dangerous situation. Failure to avoid this situation will
result in a risk of minor or moderate injury and damages to property.
NOTICE
NOTE!
This symbol contains information on procedures and other facts that do not result in
personal injury.
1.2.2 Electrical symbols
Symbol Meaning
Direct current
Alternating current
Direct current and alternating current
Ground connection
A grounded terminal that, as far as the operator is concerned, is grounded via a
grounding system
Protective ground connection
A terminal that must be connected to the ground prior to establishing any other
connections
Equipotential connection
This connects with the grounding system at the plant. It includes equipotential line
and single point ground systems, depending on the norms of each country or
company.

NAR300 system About this document
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1.2.3 Tool symbols
Symbol Meaning
A0013442
Torx screwdriver
A0011220
Flat blade screwdriver
A0011219
Phillips screwdriver
A0011221
Allen key
A0011222
Open-ended wrench
1.2.4 Symbols for certain types of information
Symbol Meaning
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
A
Reference to page
Reference to graphic
Notice or individual step to be observed
1.
,
2.
,
3.
… Series of steps
Result of operation or commissioning
Help in the event of a problem
Visual inspection
Operation via the local display
Operation via operating tool
Write-protected parameter

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1.2.5 Symbols in graphics
Symbol Meaning
1, 2, 3 ... Item numbers
1.
,
2.
,
3.
… Series of steps
A, B, C, ... Graphics
A-A, B-B, C-C, ... Cross-sections
-
Hazardous area
Indicates a hazardous area
.
Safe area (non-hazardous area)
Indicates a non-hazardous area
1.2.6 Device symbol
Symbol Meaning
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.
1.3 Documentation
For an overview of the scope of the relevant technical documentation included with
the product, refer to the following:
The W@M Device Viewer: Enter the serial number from the nameplate
(www.endress.com/deviceviewer).
1.3.1 Technical information (TI)
Technical information 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.
Device Technical information
Oil leak detector NAR300 system TI00045G (standard specifications)
TI00457G (high-temperature specifications)
1.3.2 Operating instructions (BA)
Operating instructions contain all the information required during 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.
Operating instructions also contain detailed descriptions of each parameter in the
operation menu. These descriptions are targeted for those who work with the device over
its entire life cycle and perform specific configurations.
Device Operating instructions
Oil leak detector NAR300 system BA00402G (standard specifications)
BA00403G (high-temperature specifications)

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1.3.3 Functional safety manual (FY)
The Functional safety manual is part of the Operating instructions and serves as a
reference for application-specific parameters and notes.
Device Functional safety manual
Oil leak detector NAR300 system FY01357G
1.3.4 Safety instructions (XA)
NAR300 feature 010 ("approval") Meaning Ex / XA
A ATEX II 1/2G Ex ia IIB T5/T4 XA01741G-A (NAR300)
XA01742G-A (NRR261)
XA01743G-A (NRR262)
B IECEx ia IIB T5/T4 Ga/Gb XA01741G-A (NAR300)
XA01742G-A (NRR261)
XA01743G-A (NRR262)
C FM IS Cl.I Div.1 Gr.C, D T5/T4,
zone 0,1 AEx ia IIB T5/T4
XA01744G-A (NAR300)
XA01745G-A (NRR261)
XA01746G-A (NRR262)
1 TIIS Ex ia IIB T4 XA00587G-A (NAR300)
TC18324 (NAR300)
XA00588G-A (NRR261)
TC18325 (NRR261)
XA00589G-A (NRR262)
TC18326 (NRR262)
2 JPN Ex ia IIB T4 XA01839G-A (NAR300)
XA01840G-A (NRR261)
XA01841G-A (NRR262)

Basic safety instructions NAR300 system
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2 Basic safety instructions
2.1 Requirements for personnel
The personnel for installation, commissioning, diagnostics and maintenance must fulfill
the following requirements:
‣Be specialists who are trained and have a relevant qualification for this specific
function and task.
‣Be authorized by the plant owner-operator.
‣Be familiar with local/national regulations.
‣Before starting work, read and understand the instructions in the Operating
Instructions and supplementary documentation as well as the certificates (depending
on the application).
‣Follow instructions and comply with basic conditions.
The operating personnel must fulfill the following requirements:
‣Be instructed and authorized according to the requirements of the task by the facility's
owner-operator.
‣Follow the instructions in this manual.
2.2 Designated use
Application and measured materials
Depending on the version ordered, the device can also be used with potentially explosive,
flammable, poisonous or oxidizing materials.
Devices that are used in hazardous areas have corresponding labels on their nameplates.
To ensure that the device remains in proper condition for the operation time:
‣Only use the device in full compliance with the data on the nameplate and the general
conditions listed in the Operating Instructions and supplementary documentation.
‣Check the nameplate to verify if the device can be put to its intended use in hazardous
areas.
‣If the device is not operated at an atmospheric temperature, compliance with the
relevant basic conditions specified in the relevant device documentation is absolutely
essential.
‣Protect the device permanently against corrosion from environmental influences.
‣Observe the limit values in the "Technical Information".
The manufacturer is not liable for damage caused by improper or non-designated use.
2.3 Workplace safety
For work on and with the device:
‣Wear the required personal protective equipment according to local/national
regulations.

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2.4 Operational safety
Risk of injury!
‣Operate the device in proper technical conditions and fail-safe conditions only.
‣The plant owner-operator is responsible for interference-free operation of the device.
Modifications to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers:
‣If modifications are nevertheless required, contact your Endress+Hauser Sales Center.
Repair
To ensure continued operational safety and reliability:
‣Carry out repairs on the device only if they are expressly permitted.
‣Observe local/national regulations pertaining to repair of an electrical device.
‣Use only original spare parts and accessories from Endress+Hauser.
Ex-area
Observe the following notes to eliminate the risk of danger to persons or the facility when
the device is used in Ex-areas (e.g. explosion protection, pressure equipment safety):
‣Check the model nameplate to ensure that the ordered device is explosion proof.
‣Observe the specifications in the separate supplementary documentation attached to
these Instructions.
2.5 Product safety
This device was designed in accordance with GEP (Good Engineering Practice) to meet
state-of-the-art safety requirements, has been tested and left the factory in a condition in
which it is safe to operate. It meets the general safety standards and legal requirements.

Product description NAR300 system
10 Endress+Hauser
3 Product description
3.1 Product design
The NAR300 system is composed mainly in combination with the following products.
• Float sensor NAR300
• Transmitter NRR261
• Transmitter NRR262
• Sensor I/F Ex box
The NAR300 system is designed to be installed in a pit, plant, or sump pit near a pump
yard, where it can provide the ultimate in leak detection function for petrochemicals or
vegetable oils. The oil leak detector NAR300 system utilizes two separate detection
functions, conductive and vibronic sensor, to monitor conditions. In addition, highly
accurate alarm recognition is attained through a 2-stage logic process that ensures safe
tank yard operation with minimal equipment configuration.
3.2 Technical data
3.2.1 Float sensor NAR300
Items Description
Protection class IP67 (for outside installation)
Power supply Provided by a sensor I/F Ex box or NRR261 (NAR300 sensor I/F Ex box,
integrated type)
Wetted material • Float: SUS316L, conductive sensor: SUS316 and PTFE
• Vibronic sensor: SUS316L-equivalent
Detection sensitivity 1) • w/ pit water: 10 ± 1 mm (0.04 in) with oil at factory shipment
• w/o pit water: 50 ± 5 mm (0.17 in) with oil
I/O cable Dedicated shielded cable (PVC) as well as with cable float
(Standard 6 m (19.69 ft))
Mass Approx. 2.5 kg (5.5 lb) (including dedicated shielded cable (PVC)
6 m (19.69 ft))
1) Oil (oil: approximate density 0.8), lower layer water (water: approximate density 1.0), and adjusted to be
free of a fluid surface static state and/or surface tension.
3.2.2 Sensor I/F Ex box
Items Description
Protection class IP67 (for outside installation)
Power supply Provided by NRR261 or NRR262
Cable entry • NAR300 (float sensor) side: G1/2, with cable gland
• NRR261 or NRR262 (transmitter) side: G1/2, NPT1/2, M20
Mass 3.2 kg (7.1 lb)