BEKA BA307NE Скачать руководство пользователя страница 16 | Manualshive

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Содержание BA307NE

Страница 1: ...Issue 3 1st Novemeber 2017 BA307NE BA327NE Ex nA Ex tc loop powered panel mounting indicators Issue 3...

Страница 2: ...figuration 8 Maintenance 8 1 Fault finding during commissioning 8 2 Fault finding after commissioning 8 3 Servicing 8 4 Routine maintenance 8 5 Guarantee 8 6 Customer comments 9 Accessories 9 1 Scale...

Страница 3: ...European ATEX Directive 94 9 EC The certificate number has an X suffix indicating that the two indicators are subject to special condition for safe use For installations in Zone 2 the panel enclosure...

Страница 4: ...both instruments with a common Type Examination Certificate number ITS14ATEX48028X This has been used to confirm compliance with the European ATEX Directive for Group II Category 3GD equipment The in...

Страница 5: ...roups Group A propane Group B ethylene Group C hydrogen In gases that may safely be used with equipment having a temperature classification of T1 450o C T2 300o C T3 200o C T4 135o C T5 100o C At ambi...

Страница 6: ...ea should be individually fused and contain a means of isolation These two requirements are frequently satisfied by using switch fuse holders with easily removable fuses which can be extracted to achi...

Страница 7: ...is a satisfactory method at the low voltages and currents common in instrumentation systems Clear identification of and easy access to the means of isolation is essential for their effective use It i...

Страница 8: ...el enclosure cut out dimensions Fig 4 Dimensions 5 2 Installation Procedure a Cut the aperture specified in Fig 4 in the panel enclosure Ensure that the edges of aperture are de burred b Inspect the i...

Страница 9: ...ard showing the requested units of measurement if this information is not supplied when the indicator is ordered a blank card will be fitted A pack of self adhesive scale cards printed with common uni...

Страница 10: ...10...

Страница 11: ...uration BA307NE BA327NE Access code CodE 0000 0000 Function FunC Linear Linear Display at 4mA Zero 0 0 0 00 Display at 20mA SPAn 100 0 100 00 Resolution rESn 1 digit 1 digit Bargraph start BarLo 0 00...

Страница 12: ...in 16 segment adjustable lineariser To reveal the existing indicator function select FunC from the configuration menu and press P If the function is set as required press E to return to the menu or pr...

Страница 13: ...tween the two currents is greater than 4mA If these conditions are not complied with the indicator displays FaiL and aborts the calibration c If the zero current is greater than the span current the i...

Страница 14: ...rompt in the configuration menu 6 10 Security code CodE Access to the instrument configuration menu may be protected by a four digit security code which must be entered to gain access New instruments...

Страница 15: ...e This method allows direct calibration of the lineariser with an external current source and is the preferred method when traceability is required If the exact system non linearity is unknown this me...

Страница 16: ...16...

Страница 17: ...to the required value before the P button is operated to enter the required indicator display Error message If during calibration the indicator displays a FAiL error message the current at which the s...

Страница 18: ...oints has been defined and then return to the in sub function by pressing the E button The corresponding indicator display at each of the break points can now be defined using the diSP sub function Us...

Страница 19: ...rior of the instrument with dust or moisture Some end users may prefer not to permit live maintenance to minimise risk ENSURE PLANT SAFETY BEFORE STARTING MAINTENANCE Live maintenance within the hazar...

Страница 20: ...the enclosure panel being distorted or creeping when the indicator panel clamps are tightened and ensures that the joint between the indicator and the panel enclosure in which it is mounted remains se...

Страница 21: ...ed in Zone 2 is displaying the output from an Flameproof Ex d 2 wire transmitter located in Zone 1 Alarm 1 is switching an Ex e sounder in Zone 1 and alarm 2 is switching a sounder located in the safe...

Страница 22: ...22...

Страница 23: ...ndicator display equals the setpoint See section 9 4 5 Hi Lo Alarm function Defines the alarm function as High or Low See section 9 4 6 no nC Normally open or normally closed output Sets the alarm out...

Страница 24: ...r fail safe operation both alarm outputs should be conditioned to be open in the alarm condition nC To check or change the alarm output status select no nC from the alarm configuration menu and press...

Страница 25: ...ving access to the indicator configuration menu Protection against accidental adjustment of the setpoints when the indicator is in the display mode is provided by a separate security code This direct...

Страница 26: ...int plus the displayed value to be represented or a low and a high setpoint plus the displayed value to be represented by the bargraph as shown in Fig 16 Fig 16 Displayed value and setpoints on bargra...

Страница 27: ...o or greater than 9V At lower supply voltages the backlight will continue to function but with reduced brilliance and will draw less current The ATEX certificate therefore only specifies the maximum s...

Страница 28: ...re four design requirements 1 The indicator should be installed generally as shown in section 5 and Fig 20 2 The certificate specifies that the indicator should be connected to a limited energy 4 20mA...

Страница 29: ...Fig 21 2 The four vents at the rear of the indicator enclosure shown in Fig 22 must not be obstructed 3 The certificate specifies that the indicator should be connected to a limited energy 4 20mA circ...

Страница 30: ...ne 22 The panel enclosure containing the indicator should be located where the minimum amount of dust will accumulate on them and the installation should be as specified in section 5 of this instructi...

Страница 31: ...X 4 ETL cETL certification for installations in USA and Canada A4 0 cETL Mark For installations in the USA and Canada the BA307NE and BA327NE indicators have ETL and cETL Ex nA and Ex tc approval Cont...

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