In any plant, when a process parameter goes to abnormal limit, the operator has to be alerted immediately, so that he can take corrective actions to bring the parameter back to normal. And also when the parameter returns to normal, the operator should know it. This task of calling the operator attention in such conditions is accomplished by alarm annunciation system.
LAKSHMI INSTRUMENTS & AUTOMATION’s, ANNUNCIATOR is a Microcontroller based Alarm Annunciator. This Annunciator has the operating sequences RESET, TEST, MUTE, and ACK as input and Individual Indication for each Channel for status Indication. It has three Models as Table, Panel Mounting & Wall Mounting with Window Indicator & LED Version. This Annunciator has the facility to interact with computer for Data logging and Data retrieval and Data Analysis through Visual Basic Graphic User Interface Programming Technique.
RTD Temperature Indicator / Controller is a Micro Controller based Indicator cum ON\OFF controller with in built individual channel relays for on/off controlling temperature at 4 different points. Front Panel programmable SET values and generates necessary control output through Relays. The relay outputs and required Alarm Indications available on back & Front Panel. This Unit designed to control temperature with RTD input as sensors. The Channel control, one for Alarm and another for TRIP is maintained. It supports an RS232C interface to take periodical print outs of Process parameters and the necessary Data Logging.
Micro Controller based Stepper motor Driver designed for various applications to suit different Rated Stepper Motor. Wherever Precise Movement is required it finds an importance. It has the facility to SET the distance to be moved, the direction of movement & the Speed required .It’s intelligence to detect the End of movement to reverse the direction for any Obstruction also available. Front Panel programmable SET values, which generates necessary control output through Relays for any Process Application.
Microcontroller based 8 / 6 / 4 Digit Timer with resolution ranges from hours, minutes, seconds, 0.1second & 0.01 second as per user requirement. This Unit has the facility to count and control the Timing Related various operations in Industrial automation. The Operation mode has the facility to count the Timing both in Up / Down Mode. Front Panel programmable SET values for necessary control and it generate necessary control output through Relays.
RAPSCAN is a compact advanced microcontroller based rapping sequential timer used in electrostatic precipitator, which is an air pollution control device. To improve collection efficiency and ensure proper functional use of the precipitator for a clean Environment in atmosphere. A complete ESP set up of a rapping system is applied to the collection plates and electrodes to dislodge the collected dust layer. In the next stage it is handled by Bag filters. A falling weight or fixed rotating hammer controlled by the rapping timer raps the collection plates, causing vibration that knocks off the dust layer from the collecting electrodes.
The parameters available in RAPSCAN are programmable via four key pad assembly. All programmed values are stored permanently in non-volatile memory. Intelligent program lock (Password protection) is provided so that set parameters cannot be tampered by unauthorized persons. Skip function is realized by setting zero repeat time to switch off unused channels. The main block modules are Automatic mode and Manual Mode of operation for user convenience. The real time setting & program numbers storage facility for multiple programs retentions are available by EEPROMS. The communication facility extended using Rs485 link for Scada or plc for further processing of data.
the system developed for rappscan esp controller for tumbling motor rappers has the following block modules using embedded processor as per client specification
16 motor sequential switching circuitry in real time basis
memory backup for 100 esp programs selectable
membrane keypad arrangement for data entry
feedback checking & control action
status indication 3 level on / off / fault using tricolor display
sum alarm circuitry for annunciation purpose
intelligent communication using rs485 modbus protocol
optical isolation for all input & output data handling
attractive visual display for parameters using 2 by 20 character lcd display
real time generation for real time application
din rail setup arrangement for control outputs & inputs communication using d25 and d9 connectors
smps based power supply for high noise immunity
transformer isolation for mother board & the rest of the circuitry
Micro Controller based Sequential Timer has the facility to SET 4 values and 4 control outputs for Single or Multiple LOAD. This Unit has the provision to count the Time sequences in Hours & Minutes & Seconds and has the facility to SET the required value in the same Format. Front Panel programmable SET values and control output generation. Single shot mode or cyclic mode selected through Front Panel and individual Channel Enabling (on / off) is Possible. Communication through RS 485 output also available on Request
Digital programmable Counter is a Micro Controller based (8 / 6 / 4 digit) Pulse / event counter. This Unit has the facility to count and control the Event generation involved in various operations for Industrial automation, the Operation mode facility available in both up / down counting. Front Panel programmable SET values and control output generation. It has the Data back – up facility and RS 232C/485 output also available on Request. Available models in counting & measuring Engineering Units.
RPM Indictor / Controller is a Micro Controller based (6 / 4 digit) Indicator. This Unit has the facility to indicate the RPM for Motors & Generators. Front Panel programmable SET values and control output generation for necessary control. Single input or multiple inputs for feed back. Proximity / Magnetic pickup as sensor input. Sample time less than 2 second & one relay output for external Control.
Extreme Automation Pvt. Ltd., Pune Engaged in supplying, manufacturing and selling control panels such as process control panels, industrial process control panels, machine control panels, machine hazard control panels and user friendly process control panels.
India Merchandising Services Seller and supplier of digital timers, electrical timer, industrial digital timer, digital counter, workout digital timer, electronic digital timer and electrical digital timer.
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