Issue 7
4
th
March 2014
BA474ND
Type n certified
field mounting
indicating temperature
transmitter with
intrinsically safe sensor
input
Страница 1: ...Supplied by Call us on 44 0 118 916 9420 Email info 247able com com Installation Maintenance Instructions BA474ND...
Страница 2: ...fice Cutbush Park Danehill Lower Earley Reading Berkshire RG6 4UT UK Tel 44 0 118 9311188 Email info able co uk Aberdeen Office Unit 6 Airside Business Park Kirkhill Industrial Estate Dyce Aberdeen AB...
Страница 3: ...Issue 7 4 th March 2014 BA474ND Type n certified field mounting indicating temperature transmitter with intrinsically safe sensor input Issue 7...
Страница 4: ...f bargraph display bAr 7 2 9 Access code CodE 7 2 10 Resistance thermometer type r tYPE 7 2 11 Decimal point position dP 7 2 12 Lower input display in Lo 7 2 13 Higher input display in Hi 7 3 Default...
Страница 5: ...ormation for IECEx installations and for use in combustible dust atmospheres is contained in appendices to this manual The transmitter is HART Registered and is compliant with HART protocol standard r...
Страница 6: ...used with gases in groups Group A propane Group B ethylene Group C hydrogen Having a temperature classification of T1 450oC T2 300oC T3 200oC T4 135oC T5 100oC At an ambient temperature between 20 and...
Страница 7: ...intrinsic safety approval the sensor may be installed in Zone 0 or 1 BEKA Application Guide AG310 provides comprehensive information on the design installation and maintenance of Extra low voltage dc...
Страница 8: ...Zener barrier or galvanic isolator is required thus reducing complexity and cost There are four requirements when designing a BA474ND loop 1 The output voltage of the supply powering the transmitter...
Страница 9: ...terminal should be connected to a local earth The BA474ND enclosure is supplied with a bonding plate to ensure electrical continuity between the three conduit cable entries The BA474ND liquid crystal...
Страница 10: ...lly safe and non intrinsically safe terminals within the transmitter terminal enclosure Conductors of intrinsically safe circuits and non intrinsically safe circuits should not be contained in the sam...
Страница 11: ...ected by an access code the first parameter InPut will be displayed If the transmitter is protected by an access code CodE will be displayed first Pressing P will allow the four digit security code to...
Страница 12: ...ts low or high display resolution See section 7 2 4 Transmitter Summary display of function FAuLt Sensor fault analogue indication Selects 1 of 3 under over range output currents to indicate that a se...
Страница 13: ...rmocouple has been selected press E to enter the selection and return to the t tYPE prompt in the configuration menu 7 2 3 Units of digital display dEG The transmitter digital display may be in one of...
Страница 14: ...ss P which will display the ZEro function in the sub menu pressing P again will reveal the existing transmitter input at which the transmitter output current is 4mA Input is shown in units which depen...
Страница 15: ...return control to one of the digits 7 2 9 Access code for configuration menu CodE Access to the configuration menu may be protected by a four digit security code which must be entered to gain access N...
Страница 16: ...oned using either the or button Pressing the P button again will return control to one of the digits 7 2 13 Higher input display in Hi This function which only appears in the menu when the transmitter...
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Страница 20: ...on site Function Factory default Transmitter input InPut 3 wire RTD Sensor type t tYPE Pt100 Units of digital display dEG C Display resolution rESn Low Sensor fault FAuLt Off 4 20mA output CAL 0 0 to...
Страница 21: ...r the function which enables the type of resistance thermometer to be selected The transmitter will display the existing type of resistance thermometer using the or button select 100r which is the req...
Страница 22: ...P to enter the bArLo sub function which will reveal the existing digital display at which the bargraph starts Set the display to 0100 0 using the or button to adjust the flashing digit and the P butto...
Страница 23: ...raph flashing and 4 20mA fixed at 3 6 3 8 or 21 0mA Sensor fault detection has been activated Sensor and input wiring 9 2 Fault finding after commissioning ENSURE PLANT SAFETY BEFORE STARTING MAINTENA...
Страница 24: ...Scale and tag marking BA474ND indicating temperature transmitters are fitted with a blank escutcheon around the liquid crystal display If specified when the transmitter is ordered this can be supplie...
Страница 25: ...he outputs are polarised and current will only flow in one direction Terminals 8 and 10 should be connected to the positive side of the supply Ron 8ohms 1 2V Roff greater than 180k Note Because of the...
Страница 26: ...functions Display Description of function ALr1 Alarm 1 ALr2 Alarm 2 The two functions each contain seven identical sub functions one set for configuration alarm 1 and the other for configuration alar...
Страница 27: ...25...
Страница 28: ...reveal the current setting The function may be changed by pressing the or button pressing the E button will enter the setting and return the display to the Hi Lo prompt in the alarm menu 10 4 8 Alarm...
Страница 29: ...xists the alarm will be reactivated 10 4 12 Access Setpoint ACSP This function controls a separate menu that provides direct access to the alarm setpoints when the BA474ND transmitter is in the operat...
Страница 30: ...to be displayed Pressing the or button will toggle between the two alarm setpoint prompts SP1 and SP2 If an incorrect security code is entered or a button is not pressed within ten seconds the transm...
Страница 31: ...nput input terminals 1 2 3 4 is galvanically isolated and intrinsically safe Ex iaD When the transmitter is installed in a Zone 22 dust hazardous area this allows the transmitter sensor input terminal...
Страница 32: ...d and that it is free from foreign bodies Use as a Ex nA Ex tD instrument with an intrinsically safe Ex ia sensor input Transmitter in Zone 22 sensor in Zone 20 or 21 Maintenance may only be performed...
Страница 33: ...x gas and dust certification of the transmitter are identical to the ATEX certifications described in the main section and in Appendix 1 of this instruction manual Like the ATEX certificate the IECEx...
