BEKA associates Ltd.BA314E and BA314G Tachometers, Intrinsically safe
Instruction Manual for BEKA models including: BA314G Tachometers Intrinsically Safe, BA314G, Tachometers Intrinsically Safe, Intrinsically Safe
Abbreviated Instruction manuals
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Tachometers - Exloc Instruments USA
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DocumentDocument1. DESCRIPTION The BA314G is a field mounting intrinsically safe Tachometer which will function with a wide variety of sensors. The instrument displays speed plus the run-time of the machinery being monitored. This abbreviated instruction sheet is intended to assist with installation, a comprehensive instruction manual describing safety certification, system design and configuration may be downloaded from the BEKA website or may be requested from the BEKA sales office. The BA314G Tachometer has IECEx, ATEX, UKEX, ETL and cETL intrinsic safety certification for use in flammable gas and dust atmospheres. The certification information label, which is located on the top of the instrument assembly, shows the certification numbers and codes. Other certifications may be shown. Copies of certificates may be downloaded from the BEKA website. Typical certification information label 2. INSTALLATION The BA314G Tachometer has a robust IP66 glass reinforced polyester (GRP) carbon loaded enclosure incorporating an armoured glass window & stainless steel fittings. It is suitable for exterior surface mounting in most industrial environments, or pipe mounting using an accessory kit. If the enclosure is not bolted to an earthed post or structure, the earth terminal on the cable entry bonding plate, which may be assembled on the inside or outside of the enclosure, should be connected to local earthed metalwork or to the plant's potential equalising conductor. Terminals A1, A2, A3 and A4 are only fitted when the Tachometer includes optional alarms. Similarly terminals C1, C2, C3 and C4 are only fitted when the instrument has an optional 4/20mA output. See full manual for details. A A DISPLAY A A Step A Unscrew the four captive 'A' screws and separate the indicator assembly and the back-box. B B Insulated stud for joining cable screens Earth B stud B Step B Secure the enclosure back-box to a flat surface with M6 screws through the four 'B' holes. Alternatively use a pipe mounting kit. Step C Remove the temporary hole plug and install an appropriate IP rated cable gland or conduit fitting. Feed the field wiring through the cable entry. A A Step D Terminate field wiring on the instrument assembly. Replace the assembly on the enclosure back-box and tighten the four A A 'A' screws. Fig 1 BA314G installation procedure Abbreviated Instruction for BA314G intrinsically safe field mounting Tachometer P E Issue 2 24th November 2022 BEKA associates Ltd. Old Charlton Rd, Hitchin, Hertfordshire, SG5 2DA, UK Tel: +44(0)1462 438301 e-mail: sales@beka.co.uk web: www.beka.co.uk 122 Optional 84 stainless 25 steel legend plate. 120 DISPLAY 90 19 Four M6 clearance holes for 106 surface mounting. Two M20 x 1.5 tapped cable 90 entries. Supplied with an IP66 stopping plug and one temporary hole plug. Scale card The instrument's units of measurement and tag information are shown above the display on a slide-in scale card. New instruments are fitted with a scale card showing the information specified when the instrument was ordered, if this was not provided a blank scale card will be fitted which can easily be marked on-site. Custom printed scale cards are available from BEKA associates. To remove the scale card carefully pull the tab perpendicularly away from the instrument assembly. See Fig 2 for the location of the scale card tab. pulse input + Add link to energise pulse input Optional A1 + 6 A2 5 4 A3 + 3 A4 Alarm 1 1 2 Alarm 2 RS1 RS2 4/20mA output P1 C4 P2 C3 + C2 C1 Optional + Power supply External reset + Pulse output Scale Card tab Fig 2 Dimensions and terminal connections EMC For specified immunity all wiring should be in screened twisted pairs with screens earthed at one point within the safe area. Hazardous area Safe area DISPLAY RS2 RS1 Proximity detector 65 43 + 21 ++ Switch contact/ open collector OR Voltage pulse N S Magnetic pick-off 65 43 + No link External reset Single channel positive polarity 28V: 93mA Zener Barrier + Power supply Single channel positive polarity 28V: 93mA Zener Barrier Remote reset in safe area Fig 3 Typical speed measurement loop E P Fig 4 Inserting scale card into instrument assembly To replace the scale card carefully insert it into the slot shown in Fig 2. Force should be applied evenly to both sides of the scale card to prevent it twisting. The card should be inserted until about 2mm of the transparent tab remains protruding. 3. OPERATION The BA314G is controlled and configured via four front panel push buttons. In the display mode i.e. when the instrument is displaying speed the push button functions are: & + * Resets run-time display to zero. This is a configurable function. ) + * Run-time grand total. If buttons are pressed for ten seconds or longer grand total run-time is reset to zero. This is a configurable function. ( + & Shows in succession, firmware version number, instrument function tacho and any output accessories that are fitted: -A Dual alarm outputs -P Pulse output (Always fitted) -c 4/20mA output ( + * Provides direct access to the optional alarm setpoints when the Tachometer is fitted with optional alarms and the AC5P setpoints function has been enabled. ( + ) Access to configuration menu Display DISPLAY mode ( ) ) code ( 0000 Security Code Enter code by pressing & or * & ( to move to next digit. Code 0000 allows direct access to the menu 4. CONFIGURATION Tachometers are supplied configured as requested at time of ordering, if not specified default configuration will be supplied but can easily be changed on-site. Fig 5 shows the location of each function within the configuration menu with a brief summary of the function. Please refer to the full instruction manual for detailed configuration information and for description of optional outputs. Access to the configuration menu is obtained by pressing the ( and ) buttons simultaneously. If the Tachometer's security code is set to default 0000 the first parameter input will be displayed. If the instrument is protected by a security code, code will be displayed. The four digit code must be entered to gain access to the menu. Unless otherwise specified menu functions are shown on the upper display Alarms functions appear here 4/20mA output functions appear here () ) ) ) ) ) ) ) ) ) ) ) ) & input * & update * & di5p-2 * & dp * & 5cale . 5 * & t-ba5e * & filter * & clp off * & loc clr * & pul5e op * * & clr gtot & code * & re5t def * () ) () () () () () () () () ) ( () () () inp. type * & debounce 0 . 5 on 0000 . 0 001 . 00 tb-01 24 0000 . 0 * & clr tot clr gtot clr. no 0000 0000 () () () () () op. col default off off 0000 Input & or * to select Input type op. col Open Collector volt5 l Pulse <1V >3V volt5 h Pulse <3V >10V coil Magnetic pick-off pr. det Proximity detector contact Switch contact Debounce & or * to select level of debounce. default heavy light Update & or * to select interval between display updates, may be set to 0 . 5, 1, 2, 3, 4 or 5 seconds Run-time Display & or * to turn run-time display on or off Decimal point & or * to select position of decimal point in the speed display Speed scale factor & or * to select value of each digit and ( to transfer control to next digit or decimal point Timebase & or * to select speed display timebase tb-01 for speed/sec tb-60 for speed/min tb-3600 for speed/hour Filter & or * to adjust value of each digit and ( to transfer control to other digit First digit: filter magnitude second digit: step response Note: While making adjustments the filtered rate display is shown on lower display so stability can be assured Clip off Tachometer display below which run-time timer is inhibited & or * to adjust value and ( to move to next digit Local run-time reset & or * to turn the local run-time reset function on or off. When on, run-time display is reset to zero when & and * are operated simultaneously in display mode for more than 3 seconds Local run-time grand total reset & or * to turn the local grand total run-time reset function on or off. When on, grand total run-time may be reset to zero when ) and * are operated simultaneously in display mode for more than 10 seconds & Reset run-time grand total Press & or * to select ye5 to reset grand total to zero Confirm instruction by entering 5ure. Press & or * to adjust each digit and ( to move to next digit Define Security Code Enter by pressing & or * and ( to move to next digit Reset configuration to factory defaults Confirm instruction by entering 5ure. Press & or * to adjust each digit and ( to move to next digit ) ) ) ) enbl * & 5ource * & divide * * & duration Fig 5 Configuration menu () off () 5caled () 1000 () 0 .1 The BA314G is CE marked to show compliance with the European Explosive Atmospheres Directive 2014/34/EU and the European EMC Directive 2014/30/EU. It is also UKCA marked to show compliance with UK statutory requirements Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres Regulations UKSI 2016:1107 (as amended) and with the Electromagnetic Compatibility Regulations UKSI 2016:1091 (as amended). Manuals and datasheets can be downloaded from http://www.beka.co.uk/ba314g Fig 5 Configuration menu Pulse Enable * or & to toggle between on and oFF Source or Divides scaled output pulse output pulse Duration of each pulse * or & to select pulse source. 5CALEd Input pulse frequency may be divided and duration extended. OR dirECt Synchronous retransmission of input pulse without scaling * or & to select frequency dividing factor for scaled output pulse 1 10 100 1000 10000 * or & to select duration of scaled output pulse in ms 0 . 1 0 . 5 1 2 . 5 5 10 25 50 100 250 500 These functions only appear in sub-menu when pulse 5ourCE is configured as 5CALEd Old Charlton Rd, Hitchin, Hertfordshire, SG5 2DA, UK Tel: +44(0)1462 438301 Fax: +44(0)1462 453971 e-mail: sales@beka.co.uk web: www.beka.co.uk