NU9TX0669-0200Centeron Radar Monitor

Guided Wave Radar Monitor Instruction Manual Model: RM Series Document # *********** Revision # 3 Dated 05/07/2002 Centeron TM Guided Wave Radar Monitor Instruction Manual Notice The information contained in this document is current as of the date of publication but is subject to change without notice. Robertshaw makes no warranty, expressed or implied, with regard to this material, including but not limited to the implied warranties of merchantability and fitness for a particular purpose . Robertshaw shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material. Robertshaw assumes no responsibility for the use or reliability of its products or equipment other than that for which it is intended or for use other than in the manner prescribed herein. This document is protected by copyright. All rights reserved. No part of this document may be reproduced, copied, photographed, electronically scanned, or translated into another language without the prior written consent of Robertshaw. The logo is a trademark of Robertshaw Controls. Other manufacturer or service names mentioned in this publication ar e trademarks, service marks, or registered trademarks of their respective holders.  2002 Robertshaw Controls. All Rights Reserved. Centeron TM Guided Wave Radar Monitor Instruction Manual Robertshaw Industrial Products Page i 05/07/2002 Table of Contents 1.0 Introduction...............................................................................................................1 2.0 Product Overview .....................................................................................................1 2.1 D ESCRIPTION ...................................................................................................... 1 2.2 O PERATION ......................................................................................................... 1 2.3 E NVIRONMENTAL S PECIFICATIONS ..................................................................... 2 2.4 C ERTIFICATIONS ................................................................................................. 2 2.4.1 FCC Notice—Radio Fre quency Communications.........................................2 2.4.2 Safety and Regulatory ...................................................................................3 3.0 Installation ...............................................................................................................3 3.1 RF S ITE G UIDELINES .......................................................................................... 3 3.2 H ANDLING G UIDELINES ...................................................................................... 4 3.3 M OUNTING .......................................................................................................... 5 3.4 A CTIVATION ....................................................................................................... 6 3.5 S ITE S URVEY ...................................................................................................... 7 4.0 Troubleshooting and Testing ...................................................................................7 4.1 T ROUBLESHOOTING ............................................................................................ 7 4.2 M ONITOR T EST ................................................................................................... 9 5.0 Servicing...................................................................................................................10 5.1 B ATTERY R EPLACEMENT .................................................................................. 10 5.2 W ARRANTY ...................................................................................................... 12 5.3 U NIT D ISPOSAL ................................................................................................. 12 5.4 S ERVICE P ARTS L IST ......................................................................................... 13 5.5 S ERVICE AND T ECHNICAL S UPPORT .................................................................. 13 Appendix A: Moni toring System .................................................................................A1 Appendix B: Prod uct Drawing .................................................................................... B1 Appendix C: Site Survey Form ....................................................................................C1 Centeron TM Guided Wave Radar Monitor Instruction Manual Robertshaw Industrial Products Page 1 05/07/2002 1.0 Introduction This manual describes how to install, test, and service the Centeron  Flexible Probe Guided Wave Radar Level Monitor. The Centeron  Radar Monitor is part of the Centeron  Level Monitoring System that includes the Data Collection System and Controller(s). This guide does not describe how to install, test, maintain or troubleshoot the Centeron  Controller or Data Collection System. Refe r to these products’ respective instruction manuals. The description herein is based on a standard installation. 2.0 Product Overview 2.1 Description The Centeron TM Radar Monitor is a member of Robertshaw’s Spread Spectrum Radio Frequency (RF) family of products. This M onitor detects level, temperature within the Monitor housing, battery condition, and error codes and broadcasts this information to the system’s Controller. The Monitor is calibrated and pre-programmed at the factory with the Serial Number, Property Code, and Transmission Frequency. No field programming of the Monitor is required. 2.2 Operation The Radar Monitor consists of a sealed Polypropylene housing with external pipe threads which installs in a 1 ½” or 2” National Pipe Thread (NPT) bung. The housing protects the Monitor’s electronic circuitr y and supports the long flexib le probe that extends down into the tank. The Radar Monitor measures liquid level by d…

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Centeron ® Flexible Probe Radar Monitor Instruction Manual Robertshaw Industrial Products Page 2 transmit more frequently than once every four hours and Monitors that are subjected to prolonged exposure to extreme temperatures will exhibit reduced battery life. 2.3 Environmental Specifications The following environmental specifications should be observed when installing the Monitor: • Operating Temperature Range: -40 o C to +80 o C (-40°F to +176°F) • The Monitor housing is designed to meet or exceed NEMA 3. • UV life: 10 years exposure to direct sunlight. • Shock: The unit will withstand a one-meter drop test per UL 913. • Chemical Exposure: The Centeron ® Radar Monitor is designed for use in water, ethylene glycol, oil, and common hydrocarbon fuels such as gasoline, gasoline / ethanol blends, fuel oil, and diesel fuel. Wetted materials in this design include polypropylene, 316 series stainless steel, Nitrile rubber, brass, and FEP Teflon. For applications involving fluids other than those noted above contact the Robertshaw Industrial Products Technical Support Group (refer to Section 5.5) before installation. • Pressure: The Centeron ® Radar Monitor is designed for use on vented storage tanks only. The maximum pressure inside the tank must not exceed 3 PSI. A special adapter (sold separately) is required for use in pressurized applications up to 50 PSI. 2.4 Certifications 2.4.1 FCC Notice—Radio Frequency Communications The Monitor generates and uses radio frequency energy. If not installed and used in accordance with the manufacturer’s instructions, it may cause interference to radio and television reception. The Monitor complies with the specifications in Part 15 of the FCC Rules for Class B Computing Devices. CAUTION: Robertshaw Industrial Products Division does not support field changes or modifications to any of the Centeron ® Level Monitoring System equipment unless they are specifically covered in this manual. All adjustments must be made at the factory under the specific guidelines set forth in our manufacturing processes. Any modification to the equipment will void the manufacturer’s warranty and could void the user’s authority to operate the equipment and render the equipment in violation of FCC Part 15, Subpart C, 15.247. CAUTION: This device is required to comply with FCC RF exposure requirements for mobile transmitting devices. The FCC requires that the antenna(s) used for this transmitter must be installed to provide a separation of at least 20 cm (8 inches) from Centeron ® Flexible Probe Radar Monitor Instruction Manual Robertshaw Industrial Products Page 3 all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. 2.4.2 Safety and Regulatory The Monitor is designed to comply with UL Standards for Intrinsically Safe Apparatus for use in Class I, Division 1, Group D locations. The Monitor conforms to UL 913 and has been certified to CAN/CSA Standard C22.2 No. 157 and Standard C22.2 No. 94. WARNING: SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC SAFETY. AVERTISSEMENT: LA SUBSTITUTION DE COMPOSANTS PEUT COMPROMETTRE LA SÉCURITÉ INTRINSÈQUE. 3.0 Installation A Quick Installation Guide, which provides an overview of the Radar Monitor installation procedure, was included with this product. The following sections of this manual explain in detail the site selection and installation process: 3.1 Radio Installation Guidelines The Centeron ® Radar Monitor contains sensitive measurement circuitry and a radio transmitter. Large metal objects such as buildings and vehicles may affect the transmission of radio signals. Electrical equipment may produce electronic noise that could adversely affect signal quality. ß Direct line of sight between the Centeron ® Monitor and Controller will provide optimum radio reception. ß The Centeron ® Monitor and Controller can communicate at distances up to one mile under optimum line-of-sight conditions. ß When obstructions such as walls, buildings, and vehicles exist between the Centeron ® Monitor and Controller the distance between these units should be limited to less than 500 feet.

Intertek Testing Services Company: Robertshaw Controls Company Product: Centeron RM Series Level Monitor FCC ID: NU9TX0669-0200 Page 1 of 2 Figure 1: Photograph of outside chassis – cover Intertek Testing Services Company: Robertshaw Controls Company Product: Centeron RM Series Level Monitor FCC ID: NU9TX0669-0200 Page 2 of 2 Figure 2: Photograph of outside chassis – base (also showing flat cable)

Intertek Testing Services Company: Robertshaw Controls Company Product: Centeron RM Series Level Monitor FCC ID: NU9TX0669-0200 Page 1 of 5 Figure 1: Photograph of inside cover Intertek Testing Services Company: Robertshaw Controls Company Product: Centeron RM Series Level Monitor FCC ID: NU9TX0669-0200 Page 2 of 5 Figure 2: Photograph of circuit board assembled on base (1) Intertek Testing Services Company: Robertshaw Controls Company Product: Centeron RM Series Level Monitor FCC ID: NU9TX0669-0200 Page 3 of 5 Figure 3: Photograph of circuit board assembled on base (2) Intertek Testing Services Company: Robertshaw Controls Company Product: Centeron RM Series Level Monitor FCC ID: NU9TX0669-0200 Page 4 of 5 Figure 4: Photograph of component side of device under test Intertek Testing Services Company: Robertshaw Controls Company Product: Centeron RM Series Level Monitor FCC ID: NU9TX0669-0200 Page 5 of 5 Figure 5: Photograph of solder side of device under test

Intertek Testing Services Company: Robertshaw Controls Company Product: Centeron RM Series Level Monitor FCC ID: NU9TX0669-0200 Page 1 of 1 Brief product description: The Centeron Radar Monitor is intended for remote monitoring of fuel and chemical tanks. However, the Monitor could also be used for a variety of applications including (but not limited to) oil, water, ethylene glycol, wastewater, pesticides, and fertilizers. The Centeron Radar Monitor is a member of Robertshaw’s Spread Spectrum Radio Frequency (RF) family of products. The Radar Monitor measures liquid level by detecting the vertical position of a float that rides on the probe at the top of the liquid. The Monitor’s electronic circuitry measures the time that it takes for an electromagnetic pulse to travel to the float and back to the Monitor. Travel time for the electromagnetic pulse is proportional to distance, allowing the Monitor to calculate fluid level. This level information is transmitted to the Centeron Controller using a spread spectrum radio signal in the 902–928 MHz ISM band. The Radar Monitor printed circuit assembly is housed in an injection molded polypropylene enclosure. The polypropylene housing material has a 5VA flame rating, UV stabilization, and is approved for outdoor service. The lower housing has 1.5” and 2” NPT external threads for mounting directly into a tank bung. The upper housing is attached to the lower housing with three screws and this joint is sealed with two Nitrile rubber o-rings. The upper housing is removable to facilitate battery replacement in the field. The Radar Monitor is powered by 3-volt lithium battery that is located on the printed circuit assembly. The battery is a 2/3 A size (Duracell DL123A) and is not rechargeable. Removing a small magnet from a slot in the upper housing activates the Monitor. The Radar Monitor is designed to operate in ambient temperatures between –40° C and 80° C. The Probe assembly consists of a flat cable, a float assembly, and a weight. The flat cable has two stainless steel conductor strips and is coated with extruded FEP Teflon insulation. The float is made of Nitrile foam rubber and has a two-piece stainless steel radar target inserted along its central axis. The anchor assembly consists of two identical stainless steel plates and four stainless steel screws that allow it to be clamped onto the probe cable near the bottom of the tank. A printed circuit trace on the internal circuit board is used as the Monitor’s fixed permanent antenna. No user access is provided to this antenna.

Intertek Testing Services Company: Robertshaw Controls Company Product: Centeron RM Series Level Monitor FCC ID: NU9TX0669-0200 Page 1 of 1 RF Safety Requirements to 2.1091 for Mobile Transmitters The unit under evaluation has an integral antenna. The maximum field strength from this device was 113.5 dB(μV/m). The ERP of this device was measured to be 16 dBm (40 mW). Using the following equation, this converts to an EIRP of 67 mW. r GP E tt mV 30 / = where: E V/m =he field strength in V/m P t = power transmitted (W) G t = Numeric gain of the transmitting antenna r = separation distance in meters (3 meters was the test distance used) Solving for the P t G t term gives the EIRP. MPE calculations: The uncontrolled exposure limits are 0.62 mW/ cm 2 at 923.85 MHz. Using the power density equation: 2 4r GP P tt d π = Solving for distance r yields the following equation. d tt P GP r π4 = Inserting the values and solving for r yields r = 2.9 cm. The power density equation shows that the minimum separation distance to be 2.9 cm. Since the EUT is considered to be a mobile unit, which by definition specifies that the antenna distance is greater than 20 cm, the manual incorporates a caution statement that states that the unit should only be used when a separation of 20 cm is maintained between the antenna and users. This ensures compliance with the MPE requirements.

EMC Report for Robertshaw Controls Company on the Centeron RM Series Level Monitor File: 0228460u.doc Page 1 of 19 FCCID: NU9TX0669-0200 TEST REPORT Report Number: 0228460u.doc Project Number: 3028460 August 12, 2002 Testing performed on the Centeron RM Series Level Monitor FCCID: NU9TX0669-0200 to FCC Part 15.247 Direct Sequence Spread Spectrum For Robertshaw Controls Company Test Performed by: Test Authorized by: Intertek Testing Services 1950 Evergreen Blvd., Suite 100 Duluth, GA 30096 Robertshaw Controls Company 1602 Mustang Drive Maryville, TN 37801 All services undertaken are subject to the following general policy: Reports are submitted for exclusive use of the client to whom they are addressed. Their significance is subject to the adequacy and representative character of the samples and to the comprehensiveness of the tests, examinations or surveys made. This report shall not be reproduced except in full, without written consent of Intertek Testing Services NA Inc. This report must not be used to claim product endorsement by A2LA, NIST nor any other agency of the U.S. Government. Intertek Testing Services EMC Report for Robertshaw Controls Company on the Centeron RM Series Level Monitor File: 0228460u.doc Page 2 of 19 FCCID: NU9TX0669-0200 TABLE OF CONTENTS 1 SUMMARY OF TESTS ................................................................................................................... 3 2 GENERAL DESCRIPTION ............................................................................................................4 2.1 PRODUCT DESCRIPTION.............................................................................................................. 4 2.2 RELATED SUBMITTAL(S) GRANTS.............................................................................................. 5 2.3 TEST METHODOLOGY................................................................................................................. 5 2.4 TEST FACILITY............................................................................................................................ 5 3 SYSTEM TEST CONFIGURATION ............................................................................................. 6 3.1 SUPPORT EQUIPMENT AND DESCRIPTION.................................................................................... 6 3.2 BLOCK DIAGRAM OF TEST SETUP............................................................................................... 6 3.3 JUSTIFICATION............................................................................................................................. 7 3.4 SOFTWARE EXERCISE PROGRAM................................................................................................ 7 3.5 MODE OF OPERATION DURING TEST.......................................................................................... 7 3.6 MODIFICATIONS REQUIRED FOR COMPLIANCE........................................................................... 7 3.7 ADDITIONS, DEVIATIONS AND EXCLUSIONS FROM STANDARDS................................................. 7 4 MEASUREMENT RESULTS ......................................................................................................... 8 4.1 CONDUCTED OUTPUT POWER AT ANTENNA TERMINALS........................................................... 8 4.2 6-DB BANDWIDTH....................................................................................................................... 9 4.3 POWER DENSITY....................................................................................................................... 10 4.4 OUT-OF-BAND CONDUCTED EMISSIONS................................................................................... 12 4.5 OUT-OF-BAND RADIATED EMISSIONS (EXCEPT EMISSIONS IN RESTRICTED BANDS) ............... 13 4.6 TRANSMITTER RADIATED EMISSIONS IN RESTRICTED BANDS................................................. 14 4.7 AC LINE CONDUCTED EMISSION.............................................................................................. 16 4.8 RADIATED EMISSIONS FROM DIGITAL SECTION OF TRANSCEIVER........................................... 16 4.9 RADIATED EMISSIONS FROM RECEIVER SECTION OF TRANSCEIVER (L.O. RADIATION).......... 17 4.10 TRANSMITTER DUTY CYCLE CALCULATION AND MEASUREMENTS........................................ 17 5 ANTENNA REQUIREMENT ....................................................................................................... 18 6 LIST OF TEST EQUIPMENT ...................................................................................................... 18 7 DOCUMENT HISTORY ...............................................................................................................19 Intertek Testing Services EMC Report for Robertshaw Controls Company on the Centeron RM Series Level Monitor File: 0228460u.doc Page 3 of 19 FCCID: NU9TX0669-0200 1 Summary of Tests MODEL: Centeron RM Series Level Monitor FCC ID: NU9TX0669-0200 TEST REFERENCE RESULTS Output power 15.247(b) Complies 6 dB Bandwidth 15.247(a)(2) Complies Power Density 15.247(d) Complies Out-of-band Antenna Conducted Emission 15.247(c) Not applicable. The antenna is integrated within the PCB. Out-of-band Radiated Emission (except emissions in restricted bands) 15.247(c) Complies Radiated Emission in Restricted Bands 15.209, 15.205 Complies AC Line-conducted Emission 15.207 Not applicable. Only batteries power the EUT. Radiated Emission from Digital Part 15.109 Complies to Class A limits Radiated Emission from Receiver L.O. 15.109 Not Applicable. The EUT is a transmit only device. RF Exposure Requirement 2.1091 Not applicable. The EUT is for fixed locations only. Antenna Requirement 15.203 Complies. The EUT uses a permanently connected antenna Intertek Testing Services EMC Report for Robertshaw Controls Company on the Centeron RM Series Level Monitor File: 0228460u.doc Page 4 of 19 FCCID: NU9TX0669-0200 2 General Description 2.1 Product Descrip…

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Intertek Testing Services Company: Robertshaw Controls Company Product: Centeron RM Series Level Monitor FCC ID: NU9TX0669-0200 Page 1 of 1 ERP Data Table 1: ERP measurement data Antenna Polarization Frequency MHz Measured Signal from EUT dB(uV/m) Power input to dipole to achieve same level dBm RBW VBW Vertical 923.58 113.5 16.0 3 MHz 3 MHz Table 2: Field strength data for the fundamental Company:Tested by: Model:Location: Project No.:Detector: Date:Antenna: Standard:PreAmp: Cable(s): CABLEN2TW3 + HS4000 N-N Notes:Distance: 3 Bandwidths: RBW = 3 MHz, VBW = 3 MHz Ant.AntennaCablePre-ampDistance Pol.FrequencyReadingFactorLossFactorFactor Net (V/H)MHzdB(uV)dB(1/m)dBdBdBdB(uV/m) V923.58087.420.55.60.00.0113.5 Fundamental 07/18/02CHAS2622 FCC Part 15, Subpart C (DSSS)None Radar 35 Duluth 3028459 HP8546 Robertshaw Jeremy O. Pickens

Intertek Testing Services Company: Robertshaw Controls Company Product: Centeron RM Series Level Monitor FCC ID: NU9TX0669-0200 Page 1 of 1 Figure 1: Photograph of radiated emissions setup