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Issue: 5

19th September 2018

BA304G, BA304G-SS,

BA324G & BA324G-SS

intrinsically safe

loop-powered

field mounting indicators

Issue 5

Содержание BA304G

Страница 1: ...Issue 5 19th September 2018 BA304G BA304G SS BA324G BA324G SS intrinsically safe loop powered field mounting indicators Issue 5...

Страница 2: ...to a new indicator 7 3 Under and over range 7 4 Lineariser default configuration 8 Maintenance 8 1 Fault finding during commissioning 8 2 Fault finding after commissioning 8 3 Servicing 8 4 Routine ma...

Страница 3: ...sting and Certification Ltd and comply with the European ATEX Directive 2014 34 EU The EC Type Examination certificate specifies that under fault conditions the output voltage current and power at the...

Страница 4: ...d Body Intertek Testing and Certification Ltd have issued all the models with a common EC Type Examination Certificate number ITS11ATEX27253X This confirms compliance with harmonised European standard...

Страница 5: ...face of the instrument assembly It shows the ATEX and IECEx certification information and BEKA associates name and location Non European certification information may also be shown The instrument seri...

Страница 6: ...sufficient to drive the indicator plus the interface When a high integrity earth connection is already available a Zener barrier is usually the least expensive option If an earth connection is not ava...

Страница 7: ...ing cable screens If field wiring is to be terminated prior to the installation of the indicator assembly the GRP models BA304G and BA324G can be supplied with an optional back box terminal assembly w...

Страница 8: ...for joining cable screens 5 6 Units of measurement and tag marking on scale card The indicator s units of measurement and tag information are shown on a scale card which slides into the indicator New...

Страница 9: ...e card carefully insert it into the slot on the right hand side of the input terminals as shown in Fig 6b Force should be applied evenly to both sides of the scale card to prevent it twisting The card...

Страница 10: ...A324G BA304G SS BA324G SS Access code CodE 0000 0000 Function FunC Linear Linear Display at 4mA 2ero 0 0 0 00 Display at 20mA 5PAn 100 0 100 00 Resolution rE5n 1 digit 1 digit Bargraph start BarLo 0 0...

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

Страница 13: ...e 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 instrumen...

Страница 14: ...on and oFF When set as required press to return to the tARE prompt in the configuration menu 6 10 Security code CodE Access to the instrument configuration menu may be protected by a four digit securi...

Страница 15: ...ws 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 method also allows d...

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Страница 17: ...g break point 7 1 1 Example Adding break points to a new indicator When adding break points to a new indicator or to a lineariser following resetting to the factory defaults using the LtAb function de...

Страница 18: ...pressing the button The corresponding indicator display at each of the break points can now be defined using the di5P sub function Using the and buttons select the di5P sub function and press which wi...

Страница 19: ...ertificate is available If an indicator fails after it has been functioning correctly follow the procedure shown in section 8 1 If this does not reveal the cause of the fault it is recommended that th...

Страница 20: ...ered the backlight produces green background illumination enabling the display to be read at night or in poor lighting conditions No additional power supply intrinsic safety interface or field wiring...

Страница 21: ...rgency shut down system Both models can be supplied with factory fitted dual solid state single pole alarm outputs Each alarm output may be independently configured as a high or low alarm with a norma...

Страница 22: ...simple apparatus This simplifies system documentation and allows the alarm output terminals 8 9 and 10 11 to be connected to almost any intrinsically safe circuit protected by a Zener barrier or galv...

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Страница 24: ...tpoint The alarm is activated when the indicator display equals the setpoint See section 9 3 5 Hi Lo Alarm function Defines the alarm function as High or Low See section 9 3 6 no nC Normally open or n...

Страница 25: ...for 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 pre...

Страница 26: ...t having 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 dir...

Страница 27: ...tpoint 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 18 Fig 18 Displayed value and setpoints on bar...

Страница 28: ...d into a panel aperture The kit provides an IP66 seal between the indicator and the instrument panel it is therefore suitable for mounting a stainless steel indicator in a sealed panel enclosure 9 6 B...

Страница 29: ...nly persist for a short period Be used with dust in subdivisions IIIA combustible flyings IIIB non conductive dust IIIC conductive dust Having a Minimum Ignition Temperature of Dust cloud 120 C Dust l...

Страница 30: ...cifies the following certification codes Ex ia IIC T5 Ga Ex ia IIIC T80 C Da IP66 Ta 40 C to 70 C The specified IECEx gas and dust intrinsic safety parameters are identical to the ATEX safety paramete...

Страница 31: ...70 C CL II Div 1 Groups E F G 40 C Ta 60 C CL III Div 1 40 C Ta 60 C USA Zone classification CL I Zone 0 AEx ia IIC T5 Ga 40 C Ta 70 C Zone 20 AEx ia IIIC T80 C Da 40 C Ta 60 C Canada Zone classificat...

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