Endress+Hauser NAR300 Operating Instructions Manual
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Endress+Hauser NAR300 Operating Instructions Manual

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

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Summary of Contents for Endress+Hauser NAR300

  • Page 1 Products Solutions Services BA00402G/00/EN/22.19 71452803 2019-09-07 Operating Instructions NAR300 system Oil leak detector float sensor...
  • Page 2 NAR300 system Order code: XXXXX-XXXXXX Ser. no.: XXXXXXXXXXXX Ext. ord. cd.: XXX.XXXX.XX Serial number www.endress.com/deviceviewer Endress+Hauser Operations App A0023555 Endress+Hauser...

  • Page 3: Table Of Contents

    Table of contents Endress+Hauser services ....55 About this document ....4 Document function .

  • Page 4: About This Document

    About this document NAR300 system About this document 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.
  • Page 5 NAR300 system About this document 1.2.3 Tool symbols Symbol Meaning Torx screwdriver A0013442 Flat blade screwdriver A0011220 Phillips screwdriver A0011219 Allen key A0011221 Open-ended wrench A0011222 1.2.4 Symbols for certain types of information Symbol Meaning Permitted Procedures, processes or actions that are permitted...

  • Page 6: Documentation

    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...
  • Page 7 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")

  • Page 8: Basic Safety Instructions

    Basic safety instructions NAR300 system Basic safety instructions 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.

  • Page 9: Operational Safety

    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.

  • Page 10: Product Description

    • 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.
  • Page 11 NAR300 system Product description 3.2.3 Transmitter NRR261 Items Description Protection class IP67 (for outside installation) Power supply • AC power type: 90 to 250 V , 50/60 Hz • DC power type: 22 to 26 V (integrated power supply arrester) Power consumption •...

  • Page 12: Process Condition

    Product description NAR300 system Process condition 3.3.1 Float sensor NAR300 / sensor I/F Ex box Items Description Conditions for • Density 0.7 g/cm or higher and less than 1.0 g/cm detected substance • Should float in the water (if the density is 0.9 g /cm or higher then the viscosity should be 1 mPa⋅s or higher;water ≒...

  • Page 13: Delivery Example Of Each Order Code

    Product description Delivery example of each order code Delivery example 1 Float sensor order code Transmitter order code NAR300- * 5 * * 2 / 3 A NRR261-A/B/C/2/4 NRR261 Cable gland (Ex [ia] cable entry) included with TIIS explosion-proof specification only...
  • Page 14 Sensor I/F Ex box Cable gland (Ex [ia] cable entry) included with TIIS explosion-proof specification only U bolt Check tool (accessory) The sensor I/F Ex box is included in the order code NAR300-x5xxxx. Ex [ia] system is used with transmitter NRR262. Endress+Hauser...
  • Page 15 Cable gland (Ex [ia] cable entry) included with TIIS explosion-proof specification only U bolt Check tool (accessory) The sensor I/F Ex box is included in the order code NAR300-x5xxxx. The Ex d [ia] system is used with transmitter NRR261-3/5**. Endress+Hauser...

  • Page 16: Operating Conditions

    Ice forming in the pit If ice forms in the pit, the alarm may be triggered (fail-safe function). Implement countermeasures to prevent freezing. Gasoline application For applications using gasoline, contact your Endress+Hauser Sales Center to order a special specification for gasoline applications. Endress+Hauser...

  • Page 17: Incoming Acceptance And Product

    • Do the nameplate data match the ordering information on the delivery note? • If required (see nameplate): Are the Safety instructions (XA) enclosed? If any one of these conditions is not met, contact your Endress+Hauser Sales Center. Product identification The following options are available for the identification of the device: •...
  • Page 18  2 Transmitter (NAR300-11xxxx + NRR261-2xx system) Order code Serial number Explosion proof system model Explosion proof model Power specification Manufacturing date (Ex572- 829XJ) IP67 NP-2571-2 A0039858  3 Sensor I/F Ex box separate type (NAR300-x5xxxx) Order code Serial number Endress+Hauser...
  • Page 19 Note: NRR262 must be installed in non-hazardous area. Do not modify internal parts or circuits. Refer to Ex-instruction manual (Ex581-838XJ) IP20 NP-2573-2 Endress+Hauser Yamanashi Co., Ltd Yamanashi 406-0846 Made in Japan A0039859  4 Transmitter separate type (NRR262x) Order code...
  • Page 20 Ex1087-1281- * IP67 Type 4X Endress+Hauser Yamanashi Co.,Ltd. Yamamashi 406-0846 NP-2742 Made in Japan A0039861  6 NAR300 for FM Order code Serial number NAR300 Order code Ser. no. II 1/2G Ex ia[ia Ga] IIB T4 Gb FM 14ATEX0048X Intrinsic safety circuit (Power) Ui=28V Ii=93mA Pi=0.65W...
  • Page 21 : Do not open the cover when energized. : Refer to control drawing Ex1088-1282-*. Endress+Hauser Yamanashi Co., Ltd Yamanashi 406-0846 Made in Japan NP-2745 A0039864  9 NRR261 for FM (NAR300 integrated type) Order code Serial number Power supply Manufacturing date Endress+Hauser...
  • Page 22 : Refer to control drawing Ex1088-1282-*. WARNING: AFTER DE-ENERGIZING, DELAY 10 MINUTES BEFORE OPENING. Endress+Hauser Yamanashi Co., Ltd Yamanashi 406-0846 Made in Japan NP-2739 A0039865  10 NRR261 for FM (NAR300 separate type) Order code Serial number Power supply Manufacturing date NRR261 Order Code Seri.
  • Page 23 : Refer to control drawing Ex1088-1282-*. WARNING: AFTER DE-ENERGIZING, DELAY 10 MINUTES BEFORE OPENING. Endress+Hauser Yamanashi Co., Ltd NP-2738 Yamanashi 406-0846 Made in Japan A0039867  12 NRR261 ATEX/IECEx (NAR300 separate type) Order code Serial number Power supply Manufacturing date NRR262 Order Code Seri.
  • Page 24 Uo = 13 V, Io = 38 mA, Po = 123.5 mW, Lo = 80 mH, Co = 0.25 F - : 20 Made in Japan NP-2766 XA01839G IP67 NP-2767 A0039912  15 NAR300 for JPN Ex Order code Serial number Endress+Hauser...
  • Page 25 WARNING: AFTER DE-ENERGIZING, DELAY 10 MINUTES BEFORE OPENING. IP67 Endress+Hauser Yamanashi Co.,Ltd. Yamamashi 406-0846 NP - 2768 Made in Japan A0039913  16 NRR261 JPN Ex (NAR300 integrated type) Order code Serial number Power specification Manufacturing date NRR261 Order code: Serial no: / Converter...

  • Page 26: Manufacturer Contact Address

    NRR262 for JPN Ex Order code Serial number Power supply Manufacturing date Manufacturer contact address Endress+Hauser Yamanashi Co., Ltd. 406-0846 862-1 Mitsukunugi, Sakaigawa-cho, Fuefuki-shi, Yamanashi Storage and transport 4.4.1 Storage conditions • Storage temperature: –20 to +60 °C (–4 to 140 °F) •...
  • Page 27 NAR300 system Incoming acceptance and product identification NOTICE Risk of injury ‣ Transport the measuring device to the measuring point in its original packaging. ‣ Take into account the center of gravity of the device in order to avoid unintended tilting.

  • Page 28: Installation

    Installation NAR300 system Installation NAR300 system dimensions 5.1.1 Dimensions of NAR300 float sensor 200 (7.87) 250 (9.84) 304 (11.97) A0039876  19 Float sensor NAR300 contour diagram. Unit of measurement mm (in) Float sensor cover Endress+Hauser...
  • Page 29 NAR300 system Installation 5.1.2 Dimensions of transmitter NRR261 The NRR261 is delivered with a cable gland only for the TIIS and JPN Ex specifications (suitable cable outer diameter: φ 12 to 16 mm (0.47 to 1.02 in)) Designate the cable entry with the Transmitter NRR261 order code.
  • Page 30 Installation NAR300 system 5.1.3 Dimensions of Transmitter NRR262 NRR262 is designed to be installed indoors, such as in an instrument room, and can be easily mounted using two M4 screws. In addition, "one-touch" snap-in mounting is possible using a DIN rail EN50022 (outside scope of supply). This rail-mounted method is beneficial in cases where multiple transmitters are mounted in series, and in cases where installation of additional transmitters is expected in the future.
  • Page 31 U bolt (JIS F 3022 B50 material: iron (chromate) nut ×2, washer ×2 included) 4-φ 12 mm (0.47 in) opening Select the cable entry in the NAR300 order information. When installing NAR300-15Axxx, specify NAR300-15AxxB since the cable entry will be G1/2.

  • Page 32: Installation Considerations

    Screen Pit cover Float guide Chain Weight Float sensor NAR300 Discharge nozzle (100 mm (3.94 in) or more) Dedicated cable (included with NAR300) Cable Valve Drainage groove Sensor I/F Ex box NRR261 (Transmitter) U bolts (JIS F 3022 B50) NRR261 (Transmitter) NRR262 (Transmitter) To ground the barrier, connect to the tank or use the remote cable' s shielded wire.
  • Page 33 9. Divide the pit by using an oil partition if the pit is too wide. If the volume of oil outflow in proportion to the surface area is too small, NAR300 will be unable to detect oil leakage.

  • Page 34: Mounting Of The Nar300 System

    5.3.1 Handling precautions When transporting the NAR300, be sure to hold the float sensor with both hands. Do not lift or hold by any of the components shown in the figure below, and do not lift by the upper portion of the sensor. In addition, do not rotate the housing. Doing so may cause device failure.
  • Page 35 If the float guide is 2 000 mm (78.74 in) or less, cut it before use, or contact your Endress +Hauser Sales Center if it is 2 000 mm (78.74 in) or more. 200 (7.87) 10 (0.39) 200 (7.87) 350 (13.78) A0039879  25 NAR300 and float guide. Unit of measurement mm (in) Nut (M10) Float guide Weight Endress+Hauser...
  • Page 36 Installation NAR300 system 5.3.3 NRR261 (integrated type) cable mounting Installation procedure 1. Remove the Ex [ia] terminal box cover [7] and the board guard [6]. 2. Insert the float sensor cable [4] into the cable gland [1] and cable entry for the Ex [ia] terminal box.
  • Page 37 NAR300 system Installation 5.3.4 NAR300x5xxxxxxxx and sensor I/F Ex box cable mounting Installation procedure 1. Remove the Ex [ia] terminal box cover [7] and the board guard [6]. 2. Insert the float sensor cable [4] into the cable gland [1] and cable entry for the Ex [ia] terminal box.
  • Page 38 Installation NAR300 system 5.3.5 NRR261-3/5xx cable mounting Installation procedure 1. Remove the EX [ia] terminal box cover [6] and the terminal block cover [5]. 2. Insert the float sensor cable [2] into the cable gland [1] and cable entry for the Ex [ia] terminal box.

  • Page 39: Adjustment

    NAR300 system Installation Adjustment 5.4.1 Detection sensitivity check for oil Sensitivity check when the lower layer is water and upper layer is oil When the electrode tip is pulled from the bottom layer of water in instances of increased oil layer thickness, remnants of water may still cling to the electrode, even though the sensor is still in the oil.

  • Page 40: Electrical Connection

    Connect the external grounding terminal to Class A grounding (≤ 10 Ω) by the shortest distance possible. When Float sensor NAR300 Ex [ia] is used in combination with NRR261 Ex d [ia], the safety barrier installed in NRR266 must be grounded as follows (TIIS specification only).

  • Page 41: Nrr261-2/4/A/B/C Wiring

    FEL- FRAME GUARD PROBE A0039887  31 Wiring of Transmitter NRR261-2/A/B/C Float sensor NAR300-x1xxxx Transmitter NRR261 (integrated type) Blue 1 (already wired at shipping) / Thread (M3) Blue 2 (already wired at shipping) / Thread (M3) Green/Thread (M3) Red/Thread (M3)
  • Page 42 Perform Class A grounding in a non-hazardous area using the FG safety holder GND of either terminal number 7 or 9 (TIIS specification only). The cable (3) connecting NAR300 and NRR261 is included with NAR300. The alarm output cable (4) from NRR261 and the power cable (5) to the NRR261 are not included and must the prepared by the customer.

  • Page 43: Nrr262-2/4/A/B/C Wiring

    2, 3 N.C COM N.O A0039888  32 Wiring of Transmitter NRR262-2/A/B/C Float sensor NAR300-x5xxxx (sensor I/F Ex box is also included in the code) Sensor I/F Ex box Transmitter NRR262 Green/Thread (M3) (see 1 below) Output to NRR262/Thread (M3)
  • Page 44 50/60 Hz, and should not exceed 250 V Cable (1) connecting NAR300 to the sensor I/F Ex box is included with the device, but cable (2) connecting the sensor I/F Ex box to NRR262 is not included and must be prepared by the customer.

  • Page 45: Wiring Of Nrr261-3/5

    50/50Hz N.C COM N.O N.C1 N.O1 COM1 A0039889  33 Transmitter NRR261-3 wiring Float sensor NAR300-x5xxxx (sensor I/F Ex box is also included in the code) Sensor I/F Ex box Transmitter NRR261 (separate type) Green/Thread (M3) (see 1 below) Endress+Hauser...
  • Page 46 The cable (1) connecting NAR300 and the sensor I/F Ex box is included with NAR300. Cable (2) connecting the sensor I/F Ex box to the NRR261, the alarm output cable (3) from the NRR261, as well as the power cable (4) to the NRR261 are not included and must be prepared by the customer.

  • Page 47: Connection Diagram

    Explosion-proof type converter system (integrated type) Intrinsic safety type converter system (separate type) Intrinsic safety/explosion-proof type converter system (separate type) Protective ground GND Class A ground (TIIS specification only) Float sensor NAR300 Vibronic sensor drive Vibronic sensor Liquid sensor circuit (sensor) Dedicated cable...

  • Page 48: Principle Of Alarm Operation

    NAR300 system Principle of alarm operation The oil leak detection signal detected by the NAR300 float sensor is converted to a power signal in the transmitter or the sensor I/F Ex box. After this, it is connected to the current detection circuit via the Ex [ia] safety barrier in the transmitter.

  • Page 49: Diagnosis And Troubleshooting

    NAR300 system Diagnosis and troubleshooting Diagnosis and troubleshooting Fail safe (alert when oil is not leaking) An alarm may be issued for the following reasons, even when no oil is leaking. Items Description Ice forming in the pit When ice forms, the conductivity sensor interprets it as an insulator and an alarm is issued.

  • Page 50: Operation Confirmation

    Diagnosis and troubleshooting NAR300 system Operation confirmation To confirm operation, arrange for one person to operate the float sensor and another person to be stationed at the on-site sensor I/F Ex box or Ex d transmitter NRR261, and confirm the operation. Avoid allowing static electricity charges to reach float sensor NAR300.
  • Page 51 NAR300 system Diagnosis and troubleshooting A0039898  36 Check tool (accessory) Check tools Function checker (special tool) Screw the operation checker into the vibronic sencer. Order with Product No.71137732. A0039894  37 Function checker (special tool) Function checker Endress+Hauser...
  • Page 52 Diagnosis and troubleshooting NAR300 system 7.3.1 Operation confirmation flow chart Start Remove H+ and H- Remove the float cables and confirm Alarm Transmitter failure sensor from pit and their voltage is occurs in pit. clean the sensor. 22 ±2VDC? Remove the float...
  • Page 53 NAR300 system Diagnosis and troubleshooting Prior to alarm confirmation, be sure that the alarm system will not be affected if an oil leak alarm is issued. Refer to the previous section "Operation confirmation flow chart" for operation confirmation. The following shows voltage check points described on the flow chart.

  • Page 54: Cleaning The Conductivity Sensor

    NAR300 system Cleaning the conductivity sensor NAR300 is usually checked for conductivity between the electrode and the float body. NAR300 conductivity indicates that there is water. NAR300 conductivity indicates oil or air in the pit. Since the electrode holder is connected to the float body, when there is conductivity between them NAR300 determines that there is water.

  • Page 55: Maintenance

    8.1.2 Periodic inspections While the NAR300 float sensor is not easily affected by deposits or adhered material, conduct overall periodic inspections of the cable and wiring, etc., semi-annually along with an operation check as follows.

  • Page 56: Repair

    General information on repairs 9.1.1 Repair concept The Endress+Hauser repair concept assumes that the devices have a modular design and that repairs can be done by the Endress+Hauser Service Department or specially trained customers. Spare parts are included in appropriate kits. They contain the related replacement instructions.

  • Page 57: Return

    The device must be returned if it is in need of repair or a factory calibration, or if the wrong device has been delivered or ordered. According to legal regulations, Endress+Hauser, as an ISO-certified company, is required to follow certain procedures when handling returned products that have come into contact with measured materials.

  • Page 58: Accessories

    Install the float guide weight horizontally. Remove any debris and stones from the bottom of the pit so that the sensor can be mounted horizontally. The length of a standard float guide is 2 m (6.57 in). To order any other length, contact your Endress+Hauser Sales Center.

  • Page 59: U Bolts And Cable Gland (Waterproof)

    NAR300 system Accessories 10.2 U bolts and cable gland (waterproof) U bolts (JIS FF 3022 B50) are used to install a transmitter. Use a guide pipe; 50 A (2B φ 60.5 mm (198.5 in)). Tighten and secure the cable gland after inserting the cable from NAR300.

  • Page 60: Index

    Index NAR300 system Index Symbols Application ....... . . 8 Safety Instructions Basic .
  • Page 64 *71452803* 71452803 www.addresses.endress.com...

This manual is also suitable for:

Nrr261Nrr262

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