background image

13

Fig 9 Loop powered backlight

8.5  Pipe mounting kits

Two pipe mounting kits are available for securing
the BA304ND to a horizontal or vertical pipe.
Detailed assembly instructions are supplied with
each kit.

BA392D

Stainless steel bracket secured by
two worm drive hose clips. Will clamp
to any pipe with an outside diameter
between 60 and 80mm.

BA393D

Heavy duty stainless steel bracket
secured by a 'V' bolt.  Will clamp to
any pipe with an outside diameter
between 40 and 80mm.

8.6  Stem mounting kit

The BA395 stem mounting kit comprises a
stainless steel bracket which bolts to the rear of
the indicator enclosure enabling the indicator to be
mounted directly onto a flowmeter.

Summary of Contents for BA304ND

Page 1: ...issue 8 4th March 2014 BA304ND Type nL certified loop powered 3 digit field mounting indicator issue 8 Only for replacement use after May 2013 Use BA304NE for new applications...

Page 2: ...on example 6 6 Over and under range 7 Maintenance 7 1 Fault finding during commissioning 7 2 Fault finding after commissioning 7 3 Servicing 7 4 Routine maintenance 7 5 Guarantee 7 6 Customer comments...

Page 3: ...wer the analogue to digital converter and liquid crystal display The voltage developed across R1 which is proportional to the 4 20mA input current provides the input signal for the analogue to digital...

Page 4: ...mperatures between 20 and 60 C Used with gases in groups Group A propane Group B ethylene Group C hydrogen Used with gases having a temperature classification of T1 450 C T2 300 C T3 200 C T4 135 C or...

Page 5: ...alyser drives a BA304ND Again it is necessary to ensure that the loop complies with the two design requirements listed in section 4 1 Fig 3 Remote indication 5 INSTALLATION 5 1 Location The BA304ND in...

Page 6: ...re 5 3 EMC The BA304ND complies with the requirements of the European EMC Directive 2004 108 EC For specified immunity all wiring should be in screened twisted pairs Fig 5 Dimensions and terminal conn...

Page 7: ...plug in link shown in Fig 6 When calculating the required span and zero settings the decimal point should be ignored 6 4 Reverse action Normally the BA304ND display increases as the input current inc...

Page 8: ...8 Fig 6 Position of plug in links and potentiometers shown with control cover removed...

Page 9: ...n not enter the enclosure Before replacing control terminal covers ensure that the sealing gaskets are undamaged and free from dirt and foreign bodies If a BA304ND fails after it has been functioning...

Page 10: ...dirt and foreign bodies To gain access to the display label remove the terminal cover by unscrewing the two A screws which will reveal two concealed D screws Unscrew the four D screws and carefully l...

Page 11: ...ely clip off can be selected which will force the display to zero at flows below 5 4 04mA The location of the clip off link is shown in Fig 7 Access to the link is gained by carefully removing the ind...

Page 12: ...d wiring are required but the indicator voltage drop is increased Alternatively the separatly powered backlight has a bright orange output which enhances daylight viewing but additional field wiring a...

Page 13: ...t secured by two worm drive hose clips Will clamp to any pipe with an outside diameter between 60 and 80mm BA393D Heavy duty stainless steel bracket secured by a V bolt Will clamp to any pipe with an...

Reviews: