OPTISONIC 7300 / 8300 Supplementary instructions Ultrasonic gas flow meter Addendum for hazardous areas.
CONTENTS OPTISONIC 7300 / 8300 1 Introduction 4 1.1 Safety instructions from the manufacturer ..................................................................... 4 1.1.1 1.1.2 1.1.3 1.1.4 Copyright and data protection ................................................................................................ 4 Disclaimer ............................................................................................................................... 4 Information concerning the documentation.......
CONTENTS OPTISONIC 7300 / 8300 5.6 Form (for copying) to accompany a returned device ..................................................... 35 5.7 Disposal .......................................................................................................................... 35 05/2012 - 7312262200 - AD EX OPTISONIC 7300/8300 R02 www.krohne.
1 INTRODUCTION OPTISONIC 7300 / 8300 1.1 Safety instructions from the manufacturer 1.1.1 Copyright and data protection The contents of this document have been created with great care. Nevertheless, we provide no guarantee that the contents are correct, complete or up-to-date. The contents and works in this document are subject to copyright. Contributions from third parties are identified as such.
INTRODUCTION 1 OPTISONIC 7300 / 8300 1.1.3 Information concerning the documentation To prevent any injury to the user or damage to the device it is essential that you read the information in this document and observe applicable national standards, safety requirements and accident prevention regulations. If this document is not in your native language and if you have any problems understanding the text, we advise you to contact your local office for assistance.
1 INTRODUCTION OPTISONIC 7300 / 8300 1.1.4 Warnings and symbols used Safety warnings are indicated by the following symbols. DANGER! This information refers to the immediate danger when working with electricity. DANGER! This warning refers to the immediate danger of burns caused by heat or hot surfaces. DANGER! This warning refers to the immediate danger when using this device in a hazardous atmosphere. DANGER! These warnings must be observed without fail.
INTRODUCTION 1 OPTISONIC 7300 / 8300 1.2 Safety instructions for the operator WARNING! • Do not change the device. Unauthorized changes may affect the explosion safety of the devices. • The prescriptions and regulations as well as the electrical data described in the EC type examination certificate must be obeyed. • Beside the instructions for electrical installations in non-hazardous locations according to the applicable national standard (equivalent to HD 384 or IEC 364, e.g.
1 INTRODUCTION OPTISONIC 7300 / 8300 1.3 Approval The ultrasonic flowmeters are manufactured according to the European Directive 94/9/EC (ATEX 100a). These flowmeters are approved for installation and use in hazardous classified locations of Zone 1 and 2 and are in accordance with the European Standards of the EN 60079 series. They have approval number: OPTISONIC 7300: PTB 10 ATEX 1052 X and DEKRA 12 ATEX 0063 X OPTISONIC 8300: DEKRA 12 ATEX 0063 X 1.4 OPTISONIC 7300 C/...-Ex The OPTISONIC 7300 C/...
INTRODUCTION 1 OPTISONIC 7300 / 8300 1.6 OPTISONIC 8000...-Ex The OPTISONIC 8000...-Ex high temperature (steam) flow sensor is for measuring (low and) high temperature gases including steam. The thermal sensitive parts of the transducer are located at a larger distance from the process medium inside the measuring tube. This meter is suitable for process temperatures from -200°C up to +440°C. The marking code is: OPTISONIC 8000-Ex II 2 G Ex d IIC T6...T1 1.7 GFC 300 F/...-Ex The GFC 300 F/...
1 INTRODUCTION OPTISONIC 7300 / 8300 1.9 Technical data Process medium Flammable and non-flammable gases Protection category acc. to IEC 529 / EN 60529 IP 65 or better Ambient temperature range Titanium transducers OPTISONIC 7300 C/...-Ex: -40...+65°C 1 GFC 300 F/...-Ex: -40...+65°C 1 OPTISONIC 7000...-Ex (incl. XT-version) : -40...+70°C Stainless steel HT / steam transducer 2 Synthetic transducers (only available in OPTISONIC 7000-Ex) OPTISONIC 8000-Ex: -40...+60°C Type G5.nn: -50...
INTRODUCTION 1 OPTISONIC 7300 / 8300 Marking code Converter housing Transducer I/O II 2 G Ex d IIC T6...T3 Ex d Titanium Non-Ex II 2 G Ex de IIC T6...T3 Ex de Titanium Non-Ex II 2 G Ex d ma IIC T6, T5 Ex d Synthetic Non-Ex II 2 G Ex de ma IIC T6, T5 Ex de Synthetic Non-Ex II 2 G Ex d [ia] IIC T6...T3 (PTB) II 2 (1) G Ex d [ia] IIC T6...T3 (DEKRA) Ex d Titanium Ex ia II 2 G Ex de [ia] IIC T6...T3 (PTB) II 2 (1) G Ex de [ia] IIC T6...
1 INTRODUCTION OPTISONIC 7300 / 8300 1.11 Marking labels The marking labels shown here are configuration examples. Other marking codes are possible, see previous section. Example for the Ex measuring sensor nameplate 1 2 3 4 5 6 7 Specific sign for explosion protection, Ex codes and number of EC type examination certificate. Explosion safety notes. Tag number. PED data. Calibration data. Type designation of the flowmeter and CE sign with number(s) of notified body / bodies.
INTRODUCTION 1 OPTISONIC 7300 / 8300 Example for the OPTISONIC 8000-Ex flow sensor nameplate 1 2 3 4 5 6 7 Specific sign for explosion protection, Ex codes and number of EC type examination certificate. Explosion safety notes. Tag number. PED data. Calibration data. Type designation of the flowmeter and CE sign with number(s) of notified body / bodies. Name and address of the manufacturer.
1 INTRODUCTION OPTISONIC 7300 / 8300 Example for the compact Ex version nameplate (DEKRA) 1 2 3 4 5 6 7 8 Specific sign for explosion protection, Ex codes and number of EC type examination certificate. Explosion safety notes. Intrinsical safe in-/output circuits information. Warning messages. Main supply data. Calibration data. Type designation of the flowmeter and CE sign with number(s) of notified body / bodies. Name and address of the manufacturer.
INTRODUCTION 1 OPTISONIC 7300 / 8300 Example for separate Ex signal converter nameplate Figure 1-2: OPTISONIC 8300 1 2 3 4 5 6 7 8 Specific sign for explosion protection, Ex codes and number of EC type examination certificate. Explosion safety notes. Intrinsical safe in-/output circuits information. Warning messages. Main supply data. Calibration data. Type designation of the flowmeter and CE sign with number(s) of notified body / bodies. Name and address of the manufacturer.
2 TEMPERATURE LIMITS OPTISONIC 7300 / 8300 2.1 General Due to the influence of the process medium (gas) temperature, ultrasonic flow sensors in separate version with type designation OPTISONIC 7000...-Ex and ultrasonic compact gas flow meters with type designation OPTISONIC 7300 C/...-Ex are not allocated to any fixed temperature class.
TEMPERATURE LIMITS 2 OPTISONIC 7300 / 8300 2.4 OPTISONIC 7000...-Ex The OPTISONIC 7000-Ex and OPTISONIC 7000 XT-Ex have an ambient temperature in the range of -40...+70°C. The maximum process medium temperature is listed in the table below. CAUTION! The temperature data below only applies to the meters with ultrasonic gas transducers made of titanium (types G7.01 and G7.04). For the partly encapsulated transducer types G5.nn and G6.nn, refer to Technical data on page 10.
3 CONNECTION OF SEPARATE SYSTEMS OPTISONIC 7300 / 8300 3.1 General The electrical connection between the ultrasonic flow sensor and the signal converter is established with one (single beam versions) or two (dual beam versions) MR 02 signal cable(s). The ends of the coaxial cables are provided with SMB plugs. The signal cable is provided with the system. 3.2 Cable marking The coaxial transducer cables are marked at each end by yellow tubing with a black number of subsequently 1.1 and 1.
OPTISONIC 7300 / 8300 CONNECTION OF SEPARATE SYSTEMS 3 Figure 3-2: Clamp the cables on the shielding bush. 1 2 3 4 Cables. Cable glands. Grounding clamps. Cable with metal shielding bush. Figure 3-3: Connect the cables on the signal converter. 05/2012 - 7312262200 - AD EX OPTISONIC 7300/8300 R02 www.krohne.
3 CONNECTION OF SEPARATE SYSTEMS OPTISONIC 7300 / 8300 3.2.2 Converter 1 2 3 4 Converter housing. Open connection box. Marking on cable. Insert cables through cable glands. Figure 3-4: Clamp the cables on the shielding bush. 1 2 3 4 20 Cables. Cable glands. Grounding clamps. Cable with metal shielding bush. www.krohne.
OPTISONIC 7300 / 8300 CONNECTION OF SEPARATE SYSTEMS 3 Figure 3-5: Connect the cables on the signal converter. 3.3 Equipotential bonding The GFC 300 F/...-Ex ultrasonic signal converter must always be incorporated within the equipotential bonding system of the installation in the hazardous classified location. For this purpose it must be connected to the external U-clamp screw terminal (size M5) on the wallmounting device. The separate bonding conductor must be at least 4 mm2 (11 AWG) or 2.
4 ELECTRICAL CONNECTIONS OPTISONIC 7300 / 8300 4.1 General The display cover seals the electronics compartment of the converter housing and provides type of protection “flameproof enclosure” (Ex d) according to EN 60079-1. The terminal compartment is either in type of protection "increased safety" (Ex e) or performed as "flameproof enclosure" (Ex d). The threaded joints formed by the covers and housing are a tight fit due to the requirements for type of protection “flameproof enclosure”.
ELECTRICAL CONNECTIONS 4 OPTISONIC 7300 / 8300 Figure 4-1: Electrical connections of converter 1 Mains supply connections 2 I/O connections Terminals L, N Function, electrical data 100...230 VAC, +10% / -15%, 22 VA, 50/60 Hz Internal fuse protection IN ≤ 0.8 A Um = 253 V Connections for mains supply, always non-Ex i L+, L- 12...24 VDC, +30% / -10% (short periods -25%), 12W Internal fuse protection IN ≤ 2.
4 ELECTRICAL CONNECTIONS OPTISONIC 7300 / 8300 The exact I/O-configuration for circuits A, B, C and D is order-specific and can be determined by the CG36 number shown on the I/O sticker inside the terminal compartment. Therefore check the data on the back of the GFC 300 electronics unit. The CG36 number contains 10 characters of which the last three characters (XYZ) determine the configuration of the I/O circuits: CG36 * * * X Y Z Pos 1...
ELECTRICAL CONNECTIONS 4 OPTISONIC 7300 / 8300 4.
4 ELECTRICAL CONNECTIONS OPTISONIC 7300 / 8300 Overview of the possible combinations, defined by characters XYZ of the CG36 number Characters XYZ Name of I/O circuits Terminals A, A-, A+ Terminals B, B- Terminals C, C- Terminals D, D- F00 to FL0 Profibus DP I/O n.c.
ELECTRICAL CONNECTIONS 4 OPTISONIC 7300 / 8300 4.3 "Ex i" I/O connections The following intrinsically safe I/O connections are available: I/O PCB I/O functions Ex i IO Current Output, passive + HART communication Pulse / Status Output, passive Ex ia IIC or Ex ib IIC Ui = 30 V, Ii = 100 mA, Pi = 1.0 W Ci = 10 nF, Li = negligibly low Current Output, active + HART communication Ex ia IIC or Ex ib IIC Uo = 21 V, Io = 90 mA, Po = 0.5 W Lineair characteristics Co = 90 nF, Lo = 2.0 mH Co = 110 nF, Lo = 0.
4 ELECTRICAL CONNECTIONS OPTISONIC 7300 / 8300 INFORMATION! For converters with an “Ex e” terminal compartment, the compartment can be opened in an energized state for short periods of time, to access the intrinsically safe terminals for possible checks. However, the semi-circular insulation cover over the non-intrinsically safe mains supply terminals L and N (or L+ and L-) MUST be kept closed.
MAINTENANCE 5 OPTISONIC 7300 / 8300 5.1 Maintenance The flowmeters are maintenance free with respect to the flowmetering properties. Within the scope of periodic inspections required for electrical equipment installed in hazardous areas it is recommended to check the flameproof converter housing and covers for signs of damage or corrosion. 5.
5 MAINTENANCE OPTISONIC 7300 / 8300 5.3 Replacement of mains fuse WARNING! Before commencing the work, refer to Before and after opening on page 29, then continue as follows: • Pull the display unit of the mounting frame and turn display unit carefully aside. • Unscrew the two screws size M4 that hold the mounting frame with the electronics unit.
MAINTENANCE 5 OPTISONIC 7300 / 8300 5.4 Exchange of electronics unit Before opening the converter housing: DANGER! All work on the electrical connections may only be carried out with the power disconnected. Take note of the voltage data on the nameplate! WARNING! Observe without fail the local occupational health and safety regulations. Any work done on the electrical components of the measuring device may only be carried out by properly trained specialists.
5 MAINTENANCE OPTISONIC 7300 / 8300 5.4.1 Field version DANGER! All work on the electrical connections may only be carried out with the power disconnected. Take note of the voltage data on the nameplate! Figure 5-1: Unscrew the cover and remove the display Figure 5-2: Pull off printed circuit board Perform the following procedures: • Unscrew the display cover of the electronics compartment by hand, by turning it counter clockwise 1. • Remove the display by using two screwdrivers 2.
MAINTENANCE 5 OPTISONIC 7300 / 8300 Figure 5-3: Small printed circuit board and electronics unit DANGER! Electrostatic discharge (ESD) can damage electronic parts. Make sure to discharge yourself by wearing a wrist strap. If no wrist strap is available, ground yourself by touching a metal surface that is grounded. • Remove the printed circuit board 6 from the electronics unit 4. • Check compatibility between the removed and new electronics unit 4, by checking the power voltage.
5 MAINTENANCE OPTISONIC 7300 / 8300 5.5 Service / repair information This device has been carefully manufactured and tested. If installed and operated in accordance with these operating instructions, it will rarely present any problems.
MAINTENANCE 5 OPTISONIC 7300 / 8300 5.6 Form (for copying) to accompany a returned device Company: Address: Department: Name: Tel. no.: Fax no.: Manufacturer's order no. or serial no.: The device has been operated with the following medium: This medium is: water-hazardous toxic caustic flammable We checked that all cavities in the device are free from such substances. We have flushed out and neutralized all cavities in the device.
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