BEKA BA314E Tachometers User Manual

: June 9, 2024
: BEKA

Table of Contents

DESCRIPTION
INSTALLATION
Dimensions
OPERATION
CONFIGURATION
Customer Support
References
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BEKA BA314E Tachometers

DESCRIPTION

The BA314E is a field mounting intrinsically safe Tachometer with a separate terminal compartment 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 BA314E Tachometer has IECEx, ATEX and UKEX intrinsic safety certification for use in flammable gas atmospheres, plus ETL and cETL gas and dust certification. 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

INSTALLATION

The BA314E Tachometer has a robust IP66 GRP enclosure with a separate terminal compartment 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 should be connected to local earthed metalwork or to the plant’s potential equalising conductor.

StepA Remove the terminal cover by unscrewing the two ‘A’ screws
StepB Secure the instrument to a flat surface with M6 screws through the two ‘B’ holes. Alternatively use a pipe mounting kit.
Step C and D Remove the temporary hole plug and install an appropriate IP rated cable gland or conduit fitting and terminate field wiring.
Finally replace the terminal cover and tighten the two ‘A’ screws.

Dimensions

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.

Fig 3 Typical speed measurement loop

Abbreviated Instruction for BA314E intrinsically safe field mounting Tachometer

Units of measurement and tag number
The BA314E is fitted with a blank escutcheon around the liquid crystal display. This can be supplied printed with any units of measurement and tag information specified at the time of ordering. Alternatively, the information may be added on-site via an embossed strip, dry transfer or a permanent marker.
To gain access to the escutcheon remove the terminal cover by unscrewing the two ‘A’ screws which will reveal two concealed ‘D’ screws. Remove the push buttons by unscrewing the two ‘C’ screws and un-plug the five way connector. Finally, unscrew all four ‘D’ screws and carefully lift off the front of the instrument. The location of all the screws is shown in Fig 1.
Add the required legend to the display escutcheon, or stick a new pre-printed self-adhesive escutcheon, which is available from BEKA associates, on top of the existing escutcheon. Do not remove the original escutcheon.

OPERATION

The BA314E 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 output accessories which are always fitted.
-A Control outputs
-P Pulse output
-c 4/20mA output
| Provides direct access to the alarm setpoints when the Tachometer is fitted with optional alarms and the AC5P setpoints function has been enabled.
| Access to 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 4 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. Access to the configuration menu is obtained by pressing the ( and ) buttons simultaneously. If the Tachometers 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

Manuals and datasheets can be downloaded from http://www.beka.co.uk/ba314e

The BA314E 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).