BEKA BA574C Manual Download Page 11 | Manualshive

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Summary of Contents for BA574C

Page 1: ...BA574C field mounting indicating temperature transmitter issue 4 Issue 4 26th September 2008...

Page 2: ...Voltage input reference 5 8 3 3 wire RTD reference 5 8 4 4 wire RTD reference 5 8 5 Output current reference 6 Trim menu 6 1 Calibration procedure using Trim menu 6 2 Periodic re calibration using Tr...

Page 3: ...n 5 you will find information on setting up for Section 5 3 Themocouple input Section 5 4 Resistance thermometer input Section 5 5 Voltage inputs A word of warning Section 5 8 explains how you can cal...

Page 4: ...4...

Page 5: ...and controls the 4 20mA output current The transmitter and the optional alarms are powered from the 4 20mA current loop but the optional display backlight requires a separate supply Each time power is...

Page 6: ...must have an output greater than 15 2V 4 INSTALLATION 4 1 Location The BA574C indicating transmitter can be supplied in either a glass reinforced polyester GRP or an epoxy painted aluminium enclosure...

Page 7: ...ation to be performed against the internal transmitter refer ences The Trim Menu enables the transmitter display and the 4 20mA output current to be calibrated against an external standard such as a v...

Page 8: ...ermocouple and resistance thermometer inputs The BA574C transmitter will always display sensor temperature Programming allows the display to be in degrees Centigrade or Fahren heit and for the display...

Page 9: ...the output is 4mA and SPAn the display at which the output is 20mA See section 5 6 COdE Security code Defines a four digit numeric code which must be entered to gain access to the programme and the t...

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Page 12: ...is only available when the transmitter is displaying temperature in o C When o F is selected the resolution is always one degree To check or change the display resolution select rESn from the sub menu...

Page 13: ...l point can be positioned between any of the display digits or it may be absent After selecting voltage input from the InPut menu press P to reveal the d P sub menu Press P again to display the curren...

Page 14: ...ay can be changed by pressing the Up or Down buttons When the first digit is correct pressing P will transfer control to the next digit When the least significant digit has been adjusted press E to re...

Page 15: ...is a ten second time out on password entry Pressing E will then give access to the sub menu containing the four refences 5 8 2 Voltage input reference U IP With the BA574C input terminals connected t...

Page 16: ...nsmitter to be adjusted using an external voltage resistance or temperature calibrator For maximum accuracy the complete loop including the thermocouple or resistance thermometer may be calibrated by...

Page 17: ...shown on the DVM or other instrument When correct press the E button to store the trim correction in perma nent memory and return the BA574C transmitter to the SPAn prompt This completes re calibratio...

Page 18: ...u Step 8 Input open circuit drive Using the Up or Down button select burn from the sub menu and press P to reveal the current status Select uP using the Up or Down button and press E three times to re...

Page 19: ...sh P which will cause the transmitter to display the thermocouple temperature Adjust the display with the Up and Down buttons until it is 240 0 Note Immediately the Up or Down button is operated the a...

Page 20: ...ammable on site a single spare transmitter or electronic assembly may therefore be used to replace any instrument which fails We recommend that suspect instruments are returned to BEKA associates or o...

Page 21: ...nt panel 10 0 ALARMS The BA574C can be supplied with two solid state single pole alarm outputs Each output may be programmed as a high or low alarm with a normally open or a normally closed output Fig...

Page 22: ...he operating mode See section 10 3 2 HI LO Alarm function Defines whether the alarm has a high or low function See section 10 3 3 no nc Normally open or normally closed output Determines whether the s...

Page 23: ...23 Fig 11 Programme structure for optional alarms...

Page 24: ...m output status select no nc from the alarm sub menu and press P reveal the current setting The function can be changed by pressing the Up or Down button followed by the E button to return the no nc p...

Page 25: ...e has been entered press E twice to return to the AcSP prompt in the Programme Menu Code 0000 will disable the security code allowing direct access to the setpoints by pressing the P and Up buttons si...

Page 26: ...tter is installed in a poorly illuminated area The backlight is segregated from the measuring circuit and may be powered from any supply with an output between 18 and 30V dc as shown in Fig 13 If the...

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