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Summary of Contents for BEKA BA427E-SS
- Page 1 BA427E-SS intrinsically safe 2-wire 4/20mA rugged manual set point station Issue: 5 Issue: 5 23rd May 2023...
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Page 2: Table Of Contents
System design for 4.3.1 Use in Ex e panel enclosure hazardous areas. 4.3.2 Use in Ex p panel enclosure 8.4.3 BEKA BA490 rotary encoder 5. Installation 5.1 Location 5.2 Installation procedure Appendix 1 Dust certification 5.3 Instrument earthing 5.4 EMC 5.5 Scale card... -
Page 3: Description
For example, in an application An optional factory fitted backlight, which may be where the BA427E-SS is being used to adjust the set loop or separately powered, enables this display to point of a speed controller, the internal indicator may be read in all lighting conditions. -
Page 4: Controls - Two Handed
Controls - two handed The BA427E-SS Set Point Station is controlled and Releasing both buttons will leave the configured via four front panel push buttons located selected pre-set value or Abort legend below the display. In the operating mode i.e. when... -
Page 5: Controls - Single Handed
Controls - single handed Displays The BA427E-SS Set Point Station is controlled and The BA427E-SS Set Point Station has a 5 digit configured via four front panel push buttons located display plus a 31 segment bargraph. below the display. In the operating mode i.e. when... -
Page 6: Intrinsic Safety Certification
INTRINSIC SAFETY CERTIFICATION All BA427E-SS Set Point Stations have IECEx, ATEX This allows the BA427E-SS Set Point Station to be and UKEX gas and dust intrinsic safety certification. installed in all gas Zones and to be used with most This section of the instruction manual describes common industrial gases except carbon disulphide ATEX &... -
Page 7: Certification Label Information
The certification information label is fitted in a recess on the top outer surface of the instrument enclosure. It shows the IECEx, ATEX and UKCA certification information, instrument serial number, year of manufacture plus BEKA associates name and location. BA427E-SS certification label... -
Page 8: System Design For Hazardous Areas
If the BA427E-SS Set Point Station is fitted with an optional backlight and this is loop powered, the The maximum permitted cable parameters are those minimum operating voltage of the instrument specified by the Zener barrier certificate, less the increases from 6.1 to 10V. -
Page 9: Use In An Ex E Or Ex P Panel Enclosure
Use in an Ex e panel enclosure safe wiring and equipment within the panel enclosure located in Zone 1 or Zone 2. as required by EN 60079-11 Equipment protected by Installation of a BA427E-SS Set Point Station in an intrinsic safety EN 60079-14... - Page 10 Zone 1 or Zone 2. Point Station and the intrinsically safe interface, if Installation of a BA427E-SS Set Point Station in an mounted within the enclosure, should be segregated Ex p IIC Gb or Ex p IIC Gc pressurised panel...
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Page 11: Installation
INSTALLATION Installation Procedure Location a. Cut the aperture specified in Fig 6 in the panel The BA427E-SS Set Point Station has a stainless enclosure. Ensure that the edges of the steel case with a 10mm thick toughened glass aperture are de-burred. -
Page 12: Instrument Earthing
Instrument earthing Scale card The BA427E-SS Set Point Station has an M4 earth The Set Point Station's units of measurement are stud on the rear panel which should be electrically shown on a printed scale card in a window at the connected to the panel enclosure in which the right hand side of the display. -
Page 13: Configuration And Calibration
CONFIGURATION AND CALIBRATION Summary of configuration functions Set Point Stations are configured and calibrated via This section summarises each of the configuration the four front panel push buttons. All the functions and includes a cross reference to a more configuration functions are contained in an easy to detailed description. -
Page 14: Pre-Set Outputs
Display Summary of function Display Summary of function High & low current output limits Encoder H--L Defines the lower Lo and upper Hi In addition to the Set Point Station's 4/20mA output being adjusted by the 4/20mA Set Point Station output current limits. - Page 16 Adjustment resolution: rE5n The bargraph is not displayed while using the CAL This function enables the adjustment resolution of function. the front panel & and * buttons and the optional alternative external rotary control to be defined. One Although calibration is normally performed at 4.000mA and 20.000mA, other currents may be used of three different resolutions may be selected 1, 10 providing they differ by more than 4mA.
- Page 17 The bargraph is not displayed while using the 5Et temperatures when a BA427E-SS is used as the set function point input for a temperature controller. To obtain a reverse acting display i.e. the Set Point To enter pre-set values select P5Et from the...
- Page 18 Station output current is adjusted, the maximum rate complies with the requirements for simple apparatus and is intended for use with the BA427E-SS. Other of change is defined by this function. The maximum rate is adjustable between approximately 1 and 100 encoders that produce a different number of contact seconds for full scale output travel from 4 to 20mA.
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Page 19: Reset To Factory Defaults
BEKA associates sales department if the security code is lost. 6.13 Reset to factory defaults: r5Et This function quickly returns to the BA427E-SS Set Point Station to the factory default configurations shown in section 6. To reset the Set Point Station select r5Et from the configuration menu and press (. -
Page 20: Maintenance
There should be 6.1 to 30V If a BA427E-SS Set Point Station fails after it has between terminals been functioning correctly follow the procedure 1 & 3 with terminal 1 positive. shown in section 7.1. If this does not reveal the... -
Page 21: Accessories
ACCESSORIES Scale card The BA427E-SS Set Point Station has a window on the right hand side of the display through which the scale card showing the units represented by the output current such as °C or mBar can be seen. -
Page 22: External Encoder
BA427E-SS Set Point Station to be controlled The BEKA BA490 quadrature output Rotary Encoder externally, terminals 5, 6 and 7 enable a wide range has been designed to operate with a BA427E-SS of three wire quadrature encoders with switch Set Point Station. - Page 23 A1.1 Zones, and Maximum Surface Temperature The BA427E-SS Set Point Station has IP66 front of The BA427E-SS has been ATEX & UKEX certified as panel protection and a gasket is provided to seal the Group II, Category 2D Ex ia IIIC T80°C Db IP20 joint between the instrument and the mounting panel apparatus, Ta -40 to 60°C.
- Page 24 Zone 21 or Zone 22. apparatus is usually installed in the safe area, but Installation of a BA427E-SS Set Point Station in an the inside of an Ex t enclosure is effectively a safe Ex t panel enclosure does not invalidate the Ex t...
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Page 25: Appendix 2
IECEx certification scheme and to view the BEKA associate certificates, please visit www.iecex.com A2.1 IECEx Certificate of Conformity The BA427E-SS Set Point Station and the optional accessories have been issued with an IECEx Certificate Conformity number IECEx iTS 15.0056X which specifies the following...
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