Endress+Hauser NAR 300 User manual

Products Solutions Services
Operating Instructions
NAR300 system for high
temperature
Oil leak detector float sensor
BA00403G/00/EN/10.22-00
71559868
2022-03-18

NAR300 system for high temperature
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 for high temperature Table of contents
Endress+Hauser 3
Table of contents
1 Document information .............. 4
1.1 Document function ..................... 4
1.2 Symbols used .......................... 4
1.3 Documentation ........................ 6
2 Basic safety instructions ............ 7
2.1 Requirements for personnel ............... 7
2.2 Designated use ........................ 7
2.3 Workplace safety ....................... 7
2.4 Operational safety ...................... 8
2.5 Product safety ......................... 8
3 Product description ................. 9
3.1 Product design ......................... 9
3.2 Technical data ......................... 9
3.3 Process conditions ..................... 11
3.4 Delivery example by order code ........... 12
3.5 Operating conditions ................... 14
3.6 Gasoline application .................... 14
4 Incoming acceptance and product
identification ..................... 15
4.1 Incoming acceptance ................... 15
4.2 Product identification ................... 15
4.3 Manufacturer contact address ............ 21
4.4 Storage and transport .................. 21
5 Installation ....................... 22
5.1 NAR300 system dimensions ............. 22
5.2 Installation conditions .................. 26
5.3 Mounting the NAR300 system ............ 28
5.4 Adjustment .......................... 32
6 Electrical connection .............. 33
6.1 Procedure for wiring grounding cables ...... 33
6.2 NRR262-2/4/A/B/C wiring .............. 34
6.3 NRR261-3/5 wiring .................... 36
6.4 Wiring diagram ....................... 38
6.5 Operating principles of alarm activation ..... 39
7 Troubleshooting .................. 40
7.1 Fail-safe (alarm is output when there is no oil
leak) ............................... 40
7.2 Delayed alarm (alarm is not output when
there is an oil leak) .................... 40
7.3 Operation check ....................... 41
7.4 Firmware history ...................... 43
8 Maintenance ...................... 44
8.1 Maintenance work ..................... 44
8.2 Endress+Hauser services ................ 44
9 Repair ............................ 45
9.1 General information on repairs ............ 45
9.2 Spare parts .......................... 45
9.3 Endress+Hauser services ................ 45
9.4 Return .............................. 46
9.5 Disposal ............................ 46
10 Accessories ....................... 47
10.1 Float guide .......................... 47
10.2 U-bolt/cable gland (waterproof connection) .. 48
Index .................................. 49

Document information NAR300 system for high temperature
4 Endress+Hauser
1 Document information
1.1 Document function
These 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 Symbols used
1.2.1 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.
1.2.2 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.
1.2.3 Tool symbols
Phillips head screwdriver

NAR300 system for high temperature Document information
Endress+Hauser 5
Flat blade screwdriver
Torx screwdriver
Allen key
Open-ended wrench
1.2.4 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
1.
,
2.
,
3.
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 for high temperature
6 Endress+Hauser
1.3 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
1.3.1 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.
1.3.2 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.
1.3.3 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.
1.3.4 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 for high temperature Basic safety instructions
Endress+Hauser 7
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.

Basic safety instructions NAR300 system for high temperature
8 Endress+Hauser
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.

NAR300 system for high temperature Product description
Endress+Hauser 9
3 Product description
3.1 Product design
The NAR300 system is configured mainly in combination with the following products.
1. 2. 3. 4.
A0048024
 1 NAR300 product design
1 Float sensor NAR300
2 Ex d [ia] transmitter NRR261
3 Ex [ia] transmitter NRR262
4 Ex [ia] sensor I/F Ex box
The NAR300 system is installed in an oil-retaining wall in 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. A sensor with a conductive detection function is used to
monitor the detection conditions. 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.
3.2 Technical data
3.2.1 Float sensor NAR300
Item Description
Protection class IP67 (outdoor installation)
Power supply Supplied 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
Detection sensitivity 1) Water-filled pit: 10 ± 1 mm (0.04 in) with kerosene at the time of shipment
from the factory
I/O cable Dedicated shielded cable (PVC) as well as with cable float
(Standard 6 m (19.69 ft))
Weight Approx. 2.5 kg (5.5 lb) (including the dedicated shielded cable (PVC)
6 m (19.69 ft))
1) Adjusted with oil (kerosene: approx. density: 0.8), lower-layer water (water: approx. density: 1.0), static
level condition and/or without surface tension.

Product description NAR300 system for high temperature
10 Endress+Hauser
3.2.2 Ex [ia] sensor I/F Ex box
Item Description
Protection class IP67 (outdoor installation)
Power supply Supplied 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
Weight 3.2 kg (7.1 lb)
Materials Housing/cover: Aluminum casting
3.2.3 Ex d [ia] transmitter NRR261
Item Description
Protection class IP67 (outdoor installation)
Permissible power-supply
voltage range
• AC power supply: 90 to 250 VAC, 50/60 Hz
• DC power supply: 22 to 26 VDC (built-in power supply arrester)
Maximum power consumption • AC power supply: 20 VA DC
• Power supply: 2 W
Output • Contact output: 1SPDT
• Maximum contact rating: 250 VAC, 1 A, 100 VA or 100 VDC: 1 A, 25 W
• Fail-safe function: Activated when the power is turned off and when it
freezes (see "Alarm output table")
Cable entry • G3/4 x2 (Ex d), G1/2 x1 (Ex ia)
• G1/2 x 2 (Ex d), G1/2 x 1 (Ex ia)
• NPT3/4 x2 (Ex d), NPT1/2 x1 (Ex ia)
• NPT1/2 x2 (Ex d), NPT1/2 x1 (Ex ia)
• M25 x2 (Ex d), M20 x1 (Ex ia)
• M20 (Ex d), M20 x1 (Ex ia)
• TIIS explosion-proof specifications are equipped with cable gland model
SXBM
Lightning arrester Built-in (power supply arrester)
Weight Approx. 10 kg (22 lb)
Materials Housing/cover: Aluminum casting
3.2.4 Ex [ia] transmitter NRR262
Item Description
Protection class IP20 (indoor installation), installed in non-hazardous locations
Permissible power-supply
voltage range
• AC power supply: 90 to 250 VAC, 50/60 Hz
• DC power supply: 22 to 26 VDC (built-in power supply arrester)
Maximum power consumption • AC power supply: 20 VA DC
• Power supply: 2 W
Output • Contact output: 1SPDT
• Maximum contact rating: 250 VAC, 1 A, 100 VA or 100 VDC: 1 A, 25 W
• Fail-safe function: Activated when the power is turned off and when it
freezes (see "Alarm output table")
Lightning arrester Built-in (power supply arrester)
Weight Approx. 0.6 kg (1.3 lb)
Materials Housing: Plastic

NAR300 system for high temperature Product description
Endress+Hauser 11
3.3 Process conditions
3.3.1 Float sensor NAR300 / sensor I/F Ex box
Item Description
Requirements for
object detection
• Density is at least 0.7 g/cm3 but less than 1.0 g/cm3
• Floats in water (if the density is 0.9 g/cm3 or higher, the viscosity must be at least
1 mPa⋅s. Water ≒ 1 mPa⋅s)
• Water-insoluble
• Non-conductive
• Liquid
Operating
temperature
• Ambient temperature: –20 to 100 °C (–4 to 212 °F)
• Measured liquid temperature: 0 to 100 °C (32 to 212 °F)
Requirements for pit
water
• Density is at least 1.0 g/cm3 but less than 1.13 g/cm3 (only if the kinematic viscosity
is 1 mm2/sec) 1)
• Not frozen
• Conductivity is at least 10 µS/cm (not more than 100 kΩ･cm)
• Cannot be used at sea level or in locations that may be penetrated by seawater
Other • Promptly remove any debris that adheres to the sensor unit.
• Ensure that there is no caked-on mud (dried solids), etc.
• Avoid installation conditions that cause the float sensor to tilt off-balance or change
the draft line.
• Install measures, such as a breakwater, to avoid cross-currents and waves.
1) Sensitivity will vary with the specific gravity of lower-layer water that differs from the factory-setting
environment, such as when an antifreeze is used.
3.3.2 Connector cable (connection to transmitter NRR261/262 from
sensor I/F Ex box)
Item Description
Connecting cables Maximum inductance: 2.3 mH, maximum capacitance: 83 nF
Example: Use of KPEV-S (instrumentation cable)
C = 65 nF/Km, L= 0.65 mH/km
CW/C = 0.083 µF / 65 nF = 1.276 km....1
LW/L = 2.3 mH / 0.65 mH = 3.538 km.....2
Maximum extended cable length: 1.27 km
The smaller of 1 or 2 is the maximum cable length (round down instead of
rounding off)
Operating temperature –20 to 60 °C (–4 to 140 °F)

Product description NAR300 system for high temperature
12 Endress+Hauser
3.4 Delivery example by order code
Delivery example 1
Float sensor order code Transmitter order code
NAR300- * 6* * 2 or 3 * NRR262
12
3
4
5
7
6
1 Float sensor
2 Float guide (bar) packaged separately
3 Weight (packed in the bottom of the box with the transmitter)
4 Sensor I/F Ex box
5 Cable gland (Ex [ia] cable entry) is only included with TIIS explosion-proof
specifications
6 U-bolt
The sensor I/F Ex box is included in the order code NAR300-x6xxxx. The intrinsically
safe system is used in combination with NRR262.

NAR300 system for high temperature Product description
Endress+Hauser 13
Delivery example 2
Float sensor order code Transmitter order code
NAR300- * 6* * 2 or 3* NRR261-3/5**
12
3
4
5
7
6
1 Float sensor
2 Float guide (bar) packaged separately
3 Weight (packed in the bottom of the box with the
transmitter)
4 Sensor I/F Ex box
5 Cable gland (Ex [ia] cable entry) is only included with TIIS
explosion-proof specifications
6 U-bolt
1
23
1 NRR261
2 Cable gland (Ex [ia] cable entry) included
with TIIS explosion-proof specification
only
3 U-bolt
The sensor I/F Ex box is included in the order code NAR300-x6xxxx. The pressure-
resistant, intrinsically safe system is used in combination with NRR261-3/5**.

Product description NAR300 system for high temperature
14 Endress+Hauser
3.5 Operating conditions
3.5.1 Detection sensitivity
If the electrode tip is pulled out of the lower-layer water due to increased thickness of the
oil layer, water may cling onto the electrode tip like an icicle even if the electrode tip is in
oil. In this case, detection sensitivity may increase by 1 to 2 mm (0.04 to 0.08 in). When
an accurate detection check is required, apply a small amount of neutral detergent to the
electrode tip to keep water from clinging to the electrode.
3.5.2 Pit water
The high-temperature specification is exclusively for applications in which there is always
water in the pit.
Do not use in sea water
The oil leak detector is not designed for use in sea water. The following problems may
occur if it is used in sea water:
• Failed or delayed alarm when overturned by waves
• Delayed alarm caused by generation of a bypass circuit between the conductive sensor
and the float itself due to salt coating
• Failure due to sea water corrosion
Other special pit water
If the float sensor is used in certain special pit water, such as pit water containing solvents,
it may become corroded or damaged.
Pit water with high electrical resistance
Use in pit water with high electrical resistance, such as in a steam drain and pure water,
may activate the alarm. Ensure that the conductivity of pit water is at least 10 μS/cm (not
more than 100 kΩ･cm).
Example: Pure water: 1 to 0.1 µS/cm (1 to 10 MΩ･cm)
Frozen pit water
If ice forms in the pit, the alarm may be triggered (fail-safe function). Implement anti-
freeze measures to prevent freezing.
3.6 Gasoline application
If the object to be detected is gasoline, check with your Endress+Hauser Sales Center and
order the gasoline application specifications under special specifications.

NAR300 system for high temperature Incoming acceptance and product identification
Endress+Hauser 15
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 of these conditions is not satisfied, contact your Endress+Hauser Sales Center.
4.2 Product identification
The following options are available for identification of the device:
• Nameplate specifications
• Extended order code with breakdown of the device features on the delivery note
•W@M Device Viewer (www.endress.com/deviceviewer): Enter the serial number from
the nameplate; this will display all the information about the device.
4.2.1 Nameplate
1
2
3
4
Order code
Ser. No.
Cable Length
N
P
-
2
4
9
6
-
5
A0038619
 2 NAR300 model nameplate
1 Order code
2 Serial number
3 Cable length (order code 040)
4 Explosion-proof performance (except TIIS specification)

Incoming acceptance and product identification NAR300 system for high temperature
16 Endress+Hauser
1
2
#$：
・'()*の*,-び/0の12、
456を8わないで=さい。
・@ABC ℃DEのケーブルを70
JKして=さい。
・NO#$PQRST(Ex572-
829XJ)をUVして=さい。
IP67
NP-2571-2
-20 +100～ ℃
NP-2652-1
A0039875
 3 Ex [ia] sensor I/F Ex box separate type (NAR300-x6xxxx)
1 Order code
2 Serial number
!"： ・NRR262は、'()*+に-.してください。
・6789の9;<び>?の@A、BCDはEわないでください。
・IJ!"KLMNO（Ex5 -838XJ）をSTしてください。82
Order Code
Seri. no.
@U7 Converter：（Order CodeST）/（Refe to Order Code）/
IJVW Protection class：[Ex ia] IIB/
/XYZ[ Intrinsically safe circuit：
!Uo = 28 V, Io = 93 mA, Po = 0.65 W, Co = 0.083 µ F, Lo = 3.05 mH
'XYZ[/ Non intrinsically safe circuit：
\]/Power supply：
^_\`（Um）：AC 250 V 50/60 Hz, DC 250 V
abcd/ Ambient temperature：-20～+60 °C
fCg/Manufacturing date：
エンドレスハウザーqrstuv
Endress+Hauser Yamanashi Co., Ltd
Yamanashi 406-0846
Made in Japan
1
2
3
4
NRR262
Note:
NRR262 must be installed in non-hazardous area.
Do not modify internal parts or circuits.
Refer to Ex-instruction manual (Ex58 -838XJ)
・
・
・2
NP-2573-4
I 20P
A0039859
 4 Ex [ia] transmitter separate type (NRR262-xx)
1 Order code
2 Serial number
3 Power-supply voltage
4 Manufacturing date

NAR300 system for high temperature Incoming acceptance and product identification
Endress+Hauser 17
JlA / Converter：
"#mn / Ex model : NRR261-
"#op /
3
Protection class : Exd [ia] IIB T4
qrst / Intrinsic safety circuit 2
Uo V Io mA Po W
Co 0. μF Lo mH
vqrst /：
7b：
:
= 28 = 93 = 0.65
= 083 = 3.05
Non intrinsic safety circuit
Power supply :
5678： AC 250 V 50/60 Hz, DC 250 V
:;</Manufacturing date:
Maximum voltage (Um):
wxVW / Ambient temperature：-20 ～+60 ℃
NRR261
NP - 2 -572 3
1
2
3
4
5
$%：
・@ABCのCEFびHIのJK、M;NはPわない
でください。
・56VW ℃XYのケーブルを^_してください。
・6Aの`aは、7bcde fXYghしてから
Pって1さい。
・
70
10
"#$%&'()*(）を-.して1さい。Ex581-832XJ
エンドレスハウザーn
Endress+Hauser Yamanashi Co.,Ltd.
Yamamashi 406-0846
Made in Japan
Caution
Do not modify internal parts or circuits.
Use supply wires suitable for 70°C minimum.
Wait 10 minutes after power shut off when open the cover.
Refer to instruction manual (Ex581-832XJ).
・
・
・
・
Order code:
Serial no.:
IP67
A0039860
 5 Ex d [ia] transmitter separate type (NRR261-xx)
1 Order code
2 Serial number
3 Explosion-proof model
4 Power-supply voltage
5 Manufacturing date
Order code
Ser. no.
S Cl. I, Div. 1, Gr. C,D, T4
Cl. I, Zone 1[0],
AEx ia[ia] IIB T4
Intrinsic safety circuit (Power)
Ui=28V Ii=93mA Pi=0.65W
Li=48μH Ci 0≒
Intrinsic safety circuit 2:
Uo=13V Io=46.8mA Po=152.1mW
Lo=58.3mH Co=0.25μF
Ambient Temp. -20： ～ ℃+60
Process Temp. -20： ℃〜+130
Caution：
・Do not modify parts and
circuits of this instrument.
Use the cables which thermal
endurance is over 70
・
℃.
・Refer to control drawing
Ex1087-1281- *
IP67 Type 4X
NP-2742
NP-2670
Endress+Hauser Yamanashi Co.,Ltd.
Yamamashi 406-0846
Made in Japan
Endress+Hauser Yamanashi Co.,Ltd.
Yamamashi 406-0846
Made in Japan
1
2
A
II 1/2G Ex ia[ia Ga] IIB T4 Gb
FM 14ATEX0048X
Intrinsic safety circuit (Power)
Ui=28V Ii=93mA Pi=0.65W
Li=48μH Ci 0≒
Intrinsic safety circuit 2:
Uo=13V Io=46.8mA Po=152.1mW
Lo=58.3mH Co=0.25μF
Ambient Temp. -20： ～ ℃+60
Process Temp. -20： ℃〜+130
Caution：
・Do not modify parts and
circuits of this instrument.
・Use the cables which thermal
endurance is over 70℃.
・Refer to instruction manual
XA01741G-A/08/EN
I 67P
NP-2743
NP-2679
Endress+Hauser Yamanashi Co.,Ltd.
Yamamashi 406-0846
Made in Japan
Endress+Hauser Yamanashi Co.,Ltd.
Yamamashi 406-0846
Made in Japan
1
2
NAR300
B
Ex ia[ia Ga] IIB T4 Gb
IECEx FMG 14.0024X
Intrinsic safety circuit (Power)
Ui=28V Ii=93mA Pi=0.65W
Li=48μH Ci 0≒
Intrinsic safety circuit 2:
Uo=13V Io=46.8mA Po=152.1mW
Lo=58.3mH Co=0.25μF
Ambient Temp. -20： ～ ℃+60
Process Temp. -20： ℃〜+130
Caution：
・Do not modify parts and
circuits of this instrument.
・Use the cables which thermal
endurance is over 70℃.
・Refer to instruction manual
XA01741G-A/08/EN
I 67P
NP-2743
NP-2673
Endress+Hauser Yamanashi Co.,Ltd.
Yamamashi 406-0846
Made in Japan
Endress+Hauser Yamanashi Co.,Ltd.
Yamamashi 406-0846
Made in Japan
1
2
NAR300
C
Order code
Ser. no.
Order code
Ser. no.
A0039858
 6 Nameplates for NAR300 FM / NAR300 ATEX / NAR300 IECEx
1 Order code
2 Serial number

Incoming acceptance and product identification NAR300 system for high temperature
18 Endress+Hauser
Order Code
Seri. no.
Endress+Hauser Yamanashi Co., Ltd
Yamanashi 406-0846 Made in Japan NP-2739
1
2
3
4
NRR261
XP-AIS Class I, Div. 1,2, Gp. C, D, T6
Class I, Zone 1[1], AEx db [ia] IIB T6
Ambient temperature: -20°C ~ + 60°C
Intrinsically safe circuit: NEMA 4X, IP67
Uo = 28 V Io = 85 mA Po = 595 mW Co = 0.083 F Lo = 2.4mH
Non intrinsically safe circuit:
Power supply:
Um : AC 250 V 50/60 Hz, DC 250 V
Contact output : 5 A 250 V AC, 5 A 30 V DC
Manufacturing date:
Conduit entry of the main body: M26 x 1.5
μ
Caution: A seal shall be installed within 18 inches of the enclosure.
: Do not modify internal parts or circuits.
: Use supply wires suitable 70°C minimum.
: Do not open the cover when energized.
: Refer to control drawing Ex1088-1282-*.
WARNING: AFTER DE-ENERGIZING, DELAY 10 MINUTES BEFORE OPENING.
A
Order Code
Seri. no.
Endress+Hauser Yamanashi Co., Ltd
Yamanashi 406-0846 Made in Japan NP-2738-1
1
2
3
4
NRR261
ATEX: II 2G Ex db [ia Ga] IIB T6 Gb
FM 14ATEX0048X
IECEx: Ex db [ia] IIB T6 Gb
IECEx FMG 14.0024X
Ambient temperature: -20°C ~ + 60°C NEMA 4X, IP67
Intrinsically safe circuit:
Uo = 28 V Io = 85 mA Po = 595 mW Co = 0.083 F Lo = 2.4mH
Non intrinsically safe circuit:
Power supply:
Um : AC 250 V 50/60 Hz, DC 250 V
Contact output : 5 A 250 V AC, 5 A 30 V DC
Manufacturing date:
Conduit entry of the main body: M26 x 1.5
μ
Caution: Do not modify internal parts or circuits.
: Use supply wires suitable 70°C minimum.
: Do not open the cover when energized.
: Refer to control drawing Ex1088-1282-*.
WARNING: AFTER DE-ENERGIZING, DELAY 10 MINUTES BEFORE OPENING.
B
A0039867
 7 Nameplates for NRR261
A NRR261 nameplate for FM (NAR300 separate type)
B NRR261 nameplate for ATEX/IECEx (NAR300 separate type)
1 Order code
2 Serial number
3 Power-supply voltage
4 Manufacturing date

NAR300 system for high temperature Incoming acceptance and product identification
Endress+Hauser 19
NP-2741-1
1
2
3
4
NRR262
AIS Class I, Div. 1, Gp. C, D
Class I, Zone 0, AEx [ia] IIB
Ambient temperature: -20°C ~ + 60°C IP20
Intrinsically safe circuit:
Uo = 28 V Io = 85 mA Po = 595 mW Co = 0.083 F Lo = 2.4mH
non Intrinsically safe circuit :
Power supply :
Um : AC 250 V 50/60 Hz, DC 250 V
Contact output : 5 A 250 V AC, 5 A 30 V DC
Manufacturing date:
Caution: NRR262 must be installed in non-hazardous area.
Do not modify internal parts or circuits
Refer to control drawing XA01746G-*/08/EN.
μ
・
・
・
NP-2740-1
1
2
3
4
NRR262
ATEX: II 2G [Ex ia] IIB Gb
FM 14ATEX0048X
IECEx: [Ex ia] IIB Gb
IECEx FMG 14.0024X
Ambient temperature: -20°C ~ + 60°C IP20
Intrinsically safe circuit:
Uo = 28 V Io = 85 mA Po = 595 mW Co = 0.083 F Lo = 2.4mH
non Intrinsically safe circuit :
Power supply :
Um : AC 250 V 50/60 Hz, DC 250 V
Contact output : 5 A 250 V AC, 5 A 30 V DC
Manufacturing date:
Caution: NRR262 must be installed in non-hazardous area.
Do not modify internal parts or circuits
Refer to Ex-instruction manual XA01743-*/08/EN.
μ
・
・
・
A
B
Order code
Seri. no.
Order code
Seri. no.
Endress + Hauser Yamanashi Co., Ltd
Yamanashi 406-0846
Made in Japan
Endress + Hauser Yamanashi Co., Ltd
Yamanashi 406-0846
Made in Japan
A0039864
 8 Nameplates for NRR262
A NRR262 nameplate for FM
B NRR262 nameplate for ATEX/IECEx
1 Order code
2 Serial number
3 Power-supply voltage
4 Manufacturing date

Incoming acceptance and product identification NAR300 system for high temperature
20 Endress+Hauser
m3n/Manufacturing date:
/o& / Converter
VWpq / Ex model: Order code / efer to Order code( ]^ )R
VWrs / Protection class : Ex db[ia] IIB T6 Gb
tuvw / Intrinsically safe circuit
Uo = 28 V Io = 85 mA Po = 595 mW
Co = 0.083 μF Lo = 2.4 mH
ytuvw / Non Intrinsically safe circuit
Q c :
:Power supply
@AQz： AC 250 V 50/60 Hz, DC 250 V
Maximum voltage(Um):
{|BC / Ambient temperature -20 ～+60 ℃
IP67
・Do not modify internal parts or circuits.
・Use supply wires suitable for 70℃minimum.
・Do not opan the cover when energized.
・Refer to Ex-instruction manual (XA01840G).
Caution:
WARNING: AFTER DE-ENERGIZING, DELAY 10 MINUTES
BEFORE OPENING.
!"： ・%&'(の(*+び-.の/0、234は6わな
いでください。
・@ABC70℃EFのケーブルをLMしてください。
・PQRはA&のSをTけないでください。
・VW!"XYZ[\(XA01840G)を]^して_さい。
`a：
A&のTbは、Qcdef10gEFhiしてから
6って_さい。
エンドレスハウザーq
Endress+Hauser Yamanashi Co.,Ltd.
Yamamashi 406-0846
Made in Japan
3
4
NP-2769
NRR261
Order code:
Ser. no.:
1
2
NAR300
& ]^( )Order code
VWrs [ ]
tuvw(Qcvw):
Ex ia ia Ga IIB T4 Gb
Ui = 28 V, Ii = 93 mA, Pi = 0.65 W,
Li = 48 H, Ci: できる
tuvw 2:
μ
Uo = 13 V, Io = 38 mA, Po = 123.5 mW,
Lo = 80 mH, Co = 0.25 F
{|BC: -
μ
20 60～+℃
℃BC: - ～+20 60
エンドレスハウザーq
Made in Japan
NP-2766
#$：
・'()*の*,-び/0の12、
456を8わないで=さい。
・@ABC ℃DEのケーブルを
JKして=さい。
・NO#$PQRST( )を
VWして=さい。
70
XA01839G
IP67
NP-2767
Order code:
Ser. no.:
1
2
AB
A0039868
 9 Nameplates for JPN Ex
A NAR300 nameplate for JPN Ex
B NRR261 nameplate for JPN Ex (NAR300 separate type)
1 Order code
2 Serial number
3 Power-supply voltage
4 Manufacturing date
Order code
Ser. no.
IP20
NP - 2770
エンドレスハウザーrstuvw
Endress+Hauser Yamanashi Co.,Ltd.
Yamanashi 406-0846
Made in Japan
! "：・NRR262は、'()*+に-.してください。
・789:の:<=び?@のAB、CDEはFわないで
ください。
・JK!"LMNOP(XA01841)をRSしてください。
Note: ・NRR262 must be installed in non-hazardous area.
・Do ot modify internal parts or circuits.
・Refe to Ex-instruction manual (XA01841G).
n
r
A T 8 / Converter : (Order Code RS) / (Refer to Order Code)
JKUV / Protection class : [Ex ia Gb] IIB Ta 60 ℃
XYZ[ / Intrinsically safe circuit :
Uo = 28 V, Io = 85 mA, Po = 595 mW, Co = 0.083 μF, Lo = 2.4 mH
'XYZ[ / Non Intrinsically safe circuit :
] ^/ Power supply:
_`]a(Um)：AC 250 V 50/60 Hz, DC 250 V
bcde / Ambient temperature : -20 ～+60 ℃
gDh/Manufacturing date:
NRR262
1
2
3
4
A0039866
 10 NRR262 for JPN Ex
1 Order code
2 Serial number
3 Power-supply voltage
4 Manufacturing date