BEKA BA337E-SS Tachometers Intrinsically safe Instruction Manual
- June 9, 2024
- BEKA
Table of Contents
BEKA BA337E-SS Tachometers Intrinsically safe Instruction Manual
DESCRIPTION
The BA317E-SS is an intrinsically safe, one input Tachometer housed in a
rugged 316 stainless steel panel mounting enclosure, which can operate with a
wide range of sensors.
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 BA317E-SS has IECEx, ATEX and UKEX intrinsic safety certification for use
in flammable gas and dust atmospheres. ETL and cETL approval permits
installation in the USA and Canada. The certification information label, which
is located on the top of the instrument enclosure, shows the certification
numbers and codes. Other certifications may be shown. Copies of certificates
may be downloaded from the BEKA website.
Typical certification information labelM Other approvals may be shown
Special conditions for safe use
The IECEx, ATEX and UKEX intrinsic safety certificate numbers have an ‘X’
suffix indicating that for some applications special conditions apply for safe
use.
a. When installed in an Ex e, Ex p or Ex t panel enclosure all connections to the BA317E-SS must be made by appropriately rated Zener barriers or galvanic isolators.
This means that when installed in an Ex e, Ex p or Ex t panel enclosure the
BA317E-SS remains an intrinsically safe instrument.
b. The front of the stainless steel enclosure complies with the
requirements for Ex e, Ex p & Ex t type of protection.
Therefore when correctly installed the BA317E-SS Tachometer will not invalidate the Ex e, Ex p or Ex t panel enclosure certification.
Use in combustible dust atmospheres
See full instruction manual for installation information requirements and
special conditions for safe use in combustible dust atmospheres.
INSTALLATION
Cut-out dimensions
Mandatory to achieve an IP66 seal between instrument and panel and to maintain
certification of panel enclosure in which it is mounted.
Panel cut-out 90 +0.5 / -0.0 x 43.5 +0.5 / -0.0
Abbreviated instructions for
BA317E-SS Rugged one input intrinsically safe Tachometer
Fig 2 Installation procedure
Thus the scale card can easily be changed without removing the Tachometer from the panel or opening the instrument enclosure.
New Tachometers are supplied with a printed scale card showing the requested units of measurement, if this information is not supplied when the instrument is ordered a blank card will be fitted. A pack of self-adhesive scale cards printed with common units of measurement is available as an accessory from BEKA associates. Custom printed scale cards can also be supplied.
To change a scale card, unclip the protruding end of the flexible strip by
gently pushing it upwards and pulling it out of the enclosure. Peel the
existing scale card from the flexible strip and replace it with a new printed
card, which should be aligned as shown below. Do not fit a new scale card on
top of an existing card.
Align the self-adhesive printed scale card onto the flexible strip and insert the strip into the Tachometer as shown.
Fig 5 Fitting scale card to flexible strip
OPERATION
The Tachometer is controlled by four front panel push buttons. When in the operating mode they have the following functions:
Access to configuration menu.
If the Local Run-time reset function CLr tot in the instrument configuration menu is enabled, operating the and * buttons simultaneously for more than 3 seconds resets the run-time display to zero.
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
- C 4/20mA output.
When optional alarms are fitted provides direct access to the alarm setpoints if A5CP (access to setpoints) has been enabled in the configuration menu.
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 6 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 the 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.
Input
* 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
* to select level of debounce.
default heavy light
Update
* to select interval between
display updates, may be set to 0.5, 1, 2, 3, 4 or 5 seconds
Run-time Display
* to turn run-time display on or
off
Decimal point
* to select position of decimal
point in theN speed display
Speed scale factor
* to select value of each digit and to transfer control to next digit or decimal point
Timebase
* to select speed display
timebase tb-01 for speed/sec tb-60 for speed/min tb-3600 for speed/hour
Filter
* 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
* to adjust value and to move to next digit
Local run-time rese
& 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
* 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 to select ye5 to reset grand total to zero
Confirm instruction by entering 5ure.
Press * to adjust each digit and ( to move to next digit
Define Security Code
Enter by pressing and to move to next digit
Reset configuration to factory defaults
Confirm instruction by entering 5ure. Press to adjust each digit and to move to next digit
Manuals, certificates and datasheets can be downloaded from
http://www.beka.co.uk/ba317e-ss
The BA317E-SS 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)