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Summary of Contents for BEKA BA334ND
- Page 1 BA334ND Type nL certified externally powered pulse input field mounting rate totaliser Issue 13 Issue: 13 March 2014...
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Page 2: Table Of Contents
10. Index 6.12 Clip-off 6.13 Local reset 6.14 Resetting grand total 6.15 Security code 7. Calibration Example 7.1 Calibration procedure The BA334ND is CE marked to show compliance with the European Explosive Atmospheres Directive 94/9/EC and the European EMC Directive 2004/108/EC... -
Page 3: Description
1. DESCRIPTION The BA334ND is an Ex nL certified, externally powered pulse input rate totaliser primarily intended for use with flowmeters. instrument simultaneously displays the rate of flow and the total flow in engineering units on two separate displays. The BA334ND complies with the European ATEX Directive 94/9/EC for Group II, Category 3G equipment. -
Page 4: Displays
3G equipment. It has been assessed using the ‘Internal Control of Production’ procedure 2.3 Displays specified in Annex 8 of the Directive. The BA334ND has two digital displays and technical dossier has been prepared and an associated annunciators, plus a flow indicator. Declaration Conformity See illustration on page 1. -
Page 5: Power Supply
3.6 Zones, gas groups and T rating BA334ND certificate specifies The BA334ND has been certified as Group II, maximum input parameters for the power Category 3G apparatus as defined in the ATEX supply terminals 7 and 8. Directive and as Ex nL T5, Tamb –40 to 60 to EN 60079-15. -
Page 6: System Design For Zone
4. SYSTEM DESIGN FOR ZONE 2 4.3 Pulse input As shown in Fig 2, the BA334ND will count 4.1 Flow transmitter loops pulses from a wide variety of transducers The BA334ND may be connected to almost enabling it to display the output from almost any pulse output flowmeter and calibrated to any flowmeter. -
Page 7: Installation
5. INSTALLATION e. Replace the instrument terminal cover and evenly tighten the two 'A' screws. 5.1 Location The BA334ND rate totaliser is housed in a robust IP66 glass reinforced polyester (GRP) enclosure incorporating an armoured glass window and stainless steel fittings. - Page 8 Fig 4 Dimensions and terminal connections...
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Page 9: Programming And Calibration
6.3 is read before attempting programming recalibration. When the BA334ND is fitted with alarms, a Fig 5 Calibration structure pulse or 4/20mA output, the basic menu is expanded to include the option(s). Section 9 of this manual explains how to programme 6.2 Accessing programming functions... -
Page 11: Summary Of Programmable Functions
All new BA334ND rate totalisers are supplied Display Description of function calibrated as requested at the time of ordering. If calibration information is not supplied, the 'SCALE-r' Rate scale factor instrument will be conditioned for an open Defines the arithmetic relationship... - Page 12 Operating the P push-button will toggle control 6.5 Type of input: ‘InPut’ between the two displays. When both decimal The BA334ND may be programmed to accept points have been correctly positioned press E pulse inputs from a wide variety of sensors.
- Page 13 The filter parameters are controlled by a two This function turns the lower display on or off. digit number. The first digit defines the amount When turned off, the BA334ND will only have of filteringing applied to the display as shown eight...
- Page 14 If the flowmeter has a K factor of 45.6 timebase t-bASE, or the position of the rate pulses per litre and the BA334ND total display display decimal point are changed, clip-off will is required in units of 1,000 gallons, then automatically be reset to zero.
- Page 15 counter select 'CLr. Gtot' and press P which will cause the instrument to display 'Clr. no' with 'no' flashing. Continuously press the Up or Down push-buttons until 'CLr. YES' is displayed and then press P which will result in a 'CLr 0000' prompt with one digit flashing. Using the Up and Down buttons and the P button to move to the next digit, confirm the request by entering the password 'SurE'.
- Page 16 7. CALIBRATION EXAMPLE the input for a magnetic pick-off, In this example a BA334ND rate totaliser is using the Up or Down button and connected to a turbine flowmeter having a K- return to the 'InPut' prompt in the factor of 1050.0 pulses per litre.
- Page 17 ‘On’ and ‘OFF’. Select There are 1000 litres in a cubic ‘On’ and press E to return to the metre so the BA334ND is required ‘LOCrSEt’ prompt in the main to display 1 cubic metre for every menu. 1,050 x 1,000 pulses received.
- Page 18 Step 13 Return to the display mode Following completion programming and calibration, return the BA334ND to the operating mode by pressing E. All the programming functions will now be stored in permanent memory and will be protected by the security...
- Page 19 BA334ND Flow indicator No input That BA334ND If a BA334ND fails after it has been functioning not rotating pulses, has been correctly, the following table may help to incorrect input calibrated for the terminals correct input.
- Page 20 8.6 Customer comments BEKA associates is always pleased to receive comments from customers about our products services. communications acknowledged whenever possible, suggestions are implemented.
- Page 21 9.1 Units of measurement and instrument accept time. Hysteresis may be applied to identification rate alarms. All BA334ND rate totalisers are fitted with a display label behind the armoured glass The BA334ND total display is up-dated and window. This label can be supplied printed...
- Page 22 'HI.LO' Alarm function Defines whether the alarm has a high or low function 9.2.3 Programming and adjustment See section 9.2.7 When a BA334ND is supplied with alarms the main programme menu is extended as shown 'no.nc' Normally open normally in Fig 10.
- Page 24 SPt2 anywhere between 00000000 e.g. A BA334ND calibrated to display a flow of 99999999. 0 to 5000, with a high alarm set at 4000 and hysteresis of 100 will perform as follows: To adjust the setpoint of alarm 1 select 'SPr1' or ‘SPt1’, depending upon how it has been...
- Page 25 The alarm annunciator will start flashing mode via a separate optional security code. immediately an alarm occurs and continue for To define this four digit numeric code press E the delay time after which the alarm output will to return to the 'EnbL' prompt followed by the be activated.
- Page 26 E again. Note: Direct access to the alarm setpoints is only available when the menu is enabled - see section 9.2.12 9.3 Display backlight The BA334ND can be supplied with LED backlighting to improve display contrast when instrument installed poorly illuminated area.
- Page 27 9.4 Pulse output The BA334ND may be supplied with an opto- isolated solid state pulse output. This output is a polarised current sink that closes for a programmable duration each time the least significant digit of the BA334ND display changes. A programmable divider enables the pulse output frequency to be reduced by 10, 100, 1,000 or 10,000.
- Page 28 ‘UPdAtE’ will be displayed. Enter the security code if the instrument is protected. Using the Up or Down push button select the function ‘4-20 OP’ and press P which will result in the BA334ND displaying ‘4.000’ which is the prompt setting rate display Fig 16 4/20mA output programme structure corresponding to an output current of 4.000mA.
- Page 29 9.7 Pipe mounting kits Two pipe mounting kits are available for securing the BA334ND to a horizontal or vertical pipe. BA392D Stainless steel bracket secured by two worm drive hose clips for 60 to 80mm outside diameter pipes. BA393 Heavy duty stainless steel bracket secured by a single 'V' bolt.
- Page 30 INDEX Subject Section Subject Section ‘AcSP’ 9.2.3; 9.2.12 ‘LOC.rSEt’ 6.12 Alarms optional Local reset 6.13 access 9.2.3; 9.2.12 Location output 9.2.3; 9.2.8 delay time 9.2.3; 9.2.10 Maintenance enable 9.2.3; 9.2.4 routine function 9.2.3; 9.2.7 Mounting kits hysteresis 9.2.3; 9.2.9 pipe programming 9.2.3 stem...
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