Sertel Electronics Pvt. Ltd. Mahabalipuram, Chennai, Tamil Nadu

Type   : Drilled Bar Stock / Fabricated / Protection Sheath   Design     : BARSTOCK :  Single piece solid hexagon / round barstock, deep drilled and machined with Tapered / straight type at hot end. Bore dia to suit OD of insert / element . : FABRICATED :  Beyond 600 mm immersion and for medium pressure application, fabricated Construction with 100 / 150mm Tapered / straight drilled barstock tip, welded with seamless pipe to get quick response. : MATERIAL :  SS304 / 316 / 321 / 310 / 446 / Inconel 600 / Incoloy 800 / Hastelloy / Monel / Alloy 20 / and other Special Grade materials   PROTECTION SHEATH (For Low Pressure) : Fabricated from seamless tube with hot end pluged, welded and also process connection welded. Materials : SS 304 / 316 / 321 / 310 / 446 / Inconel 600 / Incoloy 800 and Ceramic KER 710 and other Special Grade materials.Noble Metal : (Type R, S, B) Thermocouples are offered with High Alumina / recrystallised alumina sheathing – single or double with reinforcement from coldend. Specials for Coal Mill temperature / Flue gas temperature / Sulphur Atomosphere Applications : Solid Sintered Tungsten Carbide/Teflon Coating / Carbide Matrix Thermowells, barstock / Fabricated with 0.5 to 1 mm thick each side tungsten carbide /stellite Hard facing / coating /Graphite Thermowells.

SPECIAL THERMOCOUPLE – CUSTOM DESIGNED     WELD PAD Type Thermocouple - To measure skin temperature of Process Pipeline (Complete Assembly of Mineral Insulated Thermocouple with Weld Pad, Clamps etc. ) KNIFE EDGE Type Thermocouple - To measure skin temperature of Process Pipeline, Knife Edge (Hot Junction) Welded at Process pipe (Complete Assembly of Mineral Insulated Thermocouple with Knife Edge at Hot Junction, Clamps etc. )  

Type : K, J, T, E, N, R, S & B Simplex / Duplex.

High Temperature Calibrators(ATC-1200)   FEATURES:   Ideal for both Field & Lab use. Cost Effective Solution. Fast Heating & High Stability. Wide working range. Heating chamber made in High Alumina Tube. Thermal Insulation in Ceramic Fiber. Interchangeable Well / Insert with Single & Multihole. Auto Tune PID Temperature Controller. Switch Test Facility. 24VDC volt supply is available to energies transmitter & a continuity tester built in for thermal switches.   STANDARD SUPPLY INCLUDES: Basic Unit. Power Cable, Spare Fuse, & Standard Probes. Traceable Calibration Certificate. Insert / Well Remover. Operating Manual.   OPTIONAL: Additional Insert / Well (Max Hole up to 18mm) RS232 / 485 Communication with Software. Power Supply optional 110±5% VAC – 60HZ / 1200 Watts NABL Calibration Certificate. Reference / Master Temperature Sensor.

  GPS Time Sync System T-GPS-300   GPS Time Sync System T-GPS-300     OVERVIEW: Time synchronization creates a platform for an entire system comprising wide range of applications to operate in synchronous with time. The demand for improving the effectiveness of any system in place is met with time synchronization system deployed in the field. Troubleshooting is simplified by the application of time synchronization in the event of fault analysis. Sertel manufactures GPS based Time Synchronization System which generates precise time stamp signals that synchronizes various network of electrical, computer, communications devices such as DCS, PLCs, LANs, Computer Buses, RTUs etc. Equipped with high precision and high stability OCXO, T-GPS-300is capable of performing with greater accuracy and tenacity during temporary signal loss. The time stamps in the signal could be transmitted over long distances maintaining synchronization in the whole network. OPERATION: The signal from the satellite is collected by T-GPA-014-S15, an active antenna, and transmits the signal to T-GPS-300 GPS Receiver. Time base pulses as that in the UTC or the atomic clock in the GPS satellites are generated. Master Clock is provided for continuous functioning of the system. Pulses can be generated for every second, minute, 1⁄2minute, hour, day etc which are configurable. LC display upfront shows the Julian Day, date, time and geographical location. These can be viewed with the help of keypadupfront. Status LED indication can also be seen displaying the operating conditions of the receiver. Highly precise and stable OCXO compensates for any interferences or loss of signal from the satellite thus making the operation of the receiver reliable. KEY FEATURES: Compact size. 12 Channel GPS Receiver and 8 Channel Continuous Tracking. Equipped with high precision OCXO crystal for frequency maintaining micro second level accuracy. Accuracy of 187 nanosecond with GPS Signal. LCD Display : 2 x 16 characters Highly customizable Output configurable as per requirement. Configured to work as Stand Alone Timeserver. Offset adjustment. Universal Power Supply. Output Integrated to 3 decimal of frequency in Hz. Drive any number of Slave Clocks / Digital Clocks. (Customizable) Provides time/ date stamping through RS232 serial port in SERTEL format (Customizable). Low cost maintenance with durable performance. Propagation delay is better than 1μs. DOCUMENTS ATTACHED: GA & Data Sheet. NPL Certificate. Guaranteed Technical Particulars – General User Manual

OVERVIEW: Time is an important factor in all organizations. Uniform time displayed at all places in a working environment produces effective results. Responding at the right instance of time to a critical operation saves machinery losses, finance and many other valuable assets. SERTEL manufactures GPS based time display units that altogether are in synchronous with the UTC and always shows the right time at all places and at all instances. Synchronized to the atomic clock in the satellites with very high accuracy, the level of reliability upon this time display units is enormous. These units are regulated through the time data signal sent by a centralized Master Clock unit or internal RTC. The productivity of any organization is elevated by following a synchronized time as every department adheres to same time schedule. Timekeeping has become an essential feature to improve the quality of performance. Imagine if all the clocks in a locality are functioning together in synchronous with the master clock system. This opens up the path for everyone to refer to an accurate time thus leading us to stay in union with time. OPERATION: T-SA-300-100-6D is regulated by the master clock unit through the differential pulses. Slave units are connected in multi-drop mode making the rest of the units to function when one of them fails. The pulses carry the time data comprising hour pulse, minute pulse and second pulse. Time is incremented for each second through 1PPS which is the fundamental time base for each instance of time being incremented. As the master clock unit is equipped with high stability OCXO, each 1PPS has extremely close accuracy with that generated by the atomic clock in the GPS system. Plenty of slave display units can be deployed with one common master clock unit. This is feasible through distribution units accompanied with boosters depending on the distance of deployment from the master unit. These clocks have built-in RTC that displays time when the master clock or GPS receiver fails. The switchover back to these upon availability is automatic. The time data is decoded from the differential pulse at each instance of time and shown as 7-segment numbers, two digits for hour, minute and second slots in 12 or 24-hour format. KEY FEATURES: Multi-drop mode for connecting all the display units. Differential pulse input (customizable). Equipped with highly reliable built-in RTC with battery back-up. RTC/GPS indication upon requirement. Maintenance free standby batteries of suitable capacity. Inputs having high accuracy of nano second level. Display in HH:MM:SS format. LCD wall display with clear and good readability. Weather-proof construction Red colour digits capable of viewing from long distance. Manual mode for time setup as per requirement. SMPS power supply for smooth and reliable performance. Wide viewing angle facilitated by Red filter transparent overlay.

  SLAVE CLOCK 100MM - T-SL-300-100-6D     OVERVIEW: Time is an important factor in all organizations. A unique time displayed at all places in a working environment produces effective results. Responding at the right instance of time to a critical operation saves machinery losses, finance and many other valuable assets. SERTEL manufactures GPS based time display units that altogether are in synchronous with the UTC and always shows the right time at all places and at all instances. Synchronized to the atomic clock in the satellites with very high accuracy, the level of reliability upon this time display units is enormous. These units are regulated through the time data signal sent by a centralized Master Clock unit. The productivity of any organization is elevated by following a synchronized time as every department adheres to same time schedule. All the time bound activities are highly benefited from the slave clock units. Timekeeping has become an essential feature to improve the quality of performance. Imagine if all the clocks in a locality are functioning together in synchronous with the master clock system. This opens up the path for everyone to refer to an accurate time thus leading us to stay in union with time. OPERATION: T-SL-300-100-6D is regulated by the master clock unit through the differential pulses. Slave units are connected in multi-drop mode making the rest of the units to function when one of them fails. The pulses carry the time data comprising hour pulse, minute pulse and second pulse. Time is incremented for each second through 1PPS which is the fundamental time base for each instance of time being incremented. As the master clock unit is equipped with high stability OCXO, each 1PPS has extremely close accuracy with that generated by the atomic clock in the GPS system. Plenty of slave display units can be deployed with one common master clock unit. This is feasible through signal distribution units accompanied with boosters depending on the distance of deployment from the master unit. Slave clocks are always in synchronous with the master clock thus shows the exact time as that running in the latter. The time data is decoded from the differential pulse at each instance and shown as 7-segment numbers, two digits for hour, minute and second slots in 12 or 24-hour format. KEY FEATURES: Multi-drop mode for connecting all the display units. Differential pulse input (customizable). Inputs having high accuracy of nano second level. Display in HH:MM:SS format. LCD wall display with clear and good readability. Weather-proof construction Red colour digits capable of viewing from long distance. Manual mode for time setup as per requirement. SMPS power supply for smooth and reliable performance. Wide viewing angle facilitated by Red transparent filter overlay.

OVERVIEW SERTEL   Signal Isolators also By using Isolators, harmful disturbances SERTEL Signal Isolator is a green called Instrumentation Isolators or field instruments are used to galvanically or optically separate the Input circuits from the output circuits. Moreover if power-supply is separately provided, in some models, the power circuits also have no electrical connection to either the Input circuits or the Output circuits. Isolators are important bridges between the Transducers, such as Thermocouples, RTDS or other instruments and data collecting and control equipment like SCADA, DCS, Computers etc., and hazardous high voltages are prevented from entering into SCADA, DCS, Computer Systems. Errors due to common mode voltages and ground loops are eliminated. SERTEL Isolators are specifically designed and meticulously manufactured for long term and reliable operation. These Isolators are repairable by design even after their service life. Our Isolators can be recycled by sending them back to the factory for a new lease of accurate and reliable performance. product. We endeavor to ensure that discarded Isolators do not increase the Electronic pollution of this planet.   KEY FEATURES · DIN rail mounting and also panel mounting. · All ports (Input, Output, Power) are isolated to withstand 2500V AC RMS at 50-60 Hz. · Resolution: 0.05% of span. · Accuracy 0.1% of span. · Temperature co-efficient 0.025% of span per degree Celsius. · Zero and span adj

  Resistance Temperature Detectors (RTD's) Special RTD & T/C – Custom Designed Bearing Temperature Measurement probes.   Surface Temperature Probes. Bayonet Type Temperature Probes. Washer / Ring / Biscuit type temperature probes.

Type : Platinum / Copper / Nickel - Simplex / Duplex.

OVERVIEW: Time is an important factor in all organizations. A unique time displayed at all places in a working environment produces effective results. Responding at the right instance of time to a critical operation saves machinery losses, finance and many other valuable assets. SERTEL manufactures GPS based time display units that altogether are in synchronous with the UTC and always shows the right time at all places and at all instances. Synchronized to the atomic clock in the satellites with very high accuracy, the level of reliability upon this time display units is enormous. These units are regulated through the time data signal sent by a centralized Master Clock unit. The productivity of any organization is elevated by following a synchronized time as every department adheres to same time schedule. All the time bound activities are highly benefited from the slave clock units. Timekeeping has become an essential feature to improve the quality of performance. Imagine if all the clocks in a locality are functioning together in synchronous with the master clock system. This opens up the path for everyone to refer to an accurate time thus leading us to stay in union with time. OPERATION: T-SL-300-100-6DN is regulated by the master clock unit through the NTP output from the comparator unit. Slave units are connected in point-to-point mode. The time data comprising hour pulse, minute pulse and second pulse are imbibed in the NTP protocol. Time is incremented for each second through 1PPS which is the fundamental time base for each instance of time being incremented. As the master clock unit is equipped with high stability OCXO, each 1PPS has extremely close accuracy with that generated by the atomic clock in the GPS system. Plenty of slave display units can be deployed with one common master clock unit. This is feasible through signal conditioner units. Slave clocks are always in synchronous with the master clock thus shows the exact time as that running in the latter. The time data is decoded from the differential pulse at each instance and shown as 7-segment numbers, two digits for hour, minute and second slots in 12 or 24-hour format. KEY FEATURES: Ethernet mode of connection. NTP input (customizable). Inputs having high accuracy of nano second level. Display in HH:MM:SS format. LCD wall display with clear and good readability. Weather-proof construction Proprietary software is provided. Supports all types of operating systems. Red colour digits capable of viewing from long distance. Manual mode for time setup as per requirement. SMPS power supply for smooth and reliable performance. Wide viewing angle facilitated by Red transparent filter overlay.

OVERVIEW: Network of computers are omnipresent. Synchronization of these computers is highly recommended at all enterprises. This integrates various diversified systems to work in unison. Internetworking has become the backbone for communication and transportation of data and has paved way for advancement in the future. The common time protocol deployed in these networks is the Network Time Protocol (NTP). A less complex implementation of this is the Simple Network Time Protocol (SNTP). SERTEL manufactures NTP Server Teleclock which generates precise time stamp signals that synchronizes network of computer devices over an entire network of LANs and WANs. Our NTP Server Teleclock refers to standard timeservers for the time data. NTP provides highly accurate performance depending on the network path. Equipped with high precision and stable OCXO, T-GPS-300-TL generates accurate and reliable time signal. OPERATION: NTP Teleclock operates at Stratum 2 by acquiring the time data from any standard timeservers available as per the user’s requirement. The Receiver unit generates time base pulses which is an accurate copy as that of the timeservers. This is imbibed into the networking protocol NTP that are available at the output ports. NTP Time Sync Server is connected with Redundant Power Supply and the system runs with high precision OCXO for frequency maintaining micro second level. The front panel shows the Time / Date with provision for manual setup through simple user-interface keys “ENTER”, ”NEXT”, ”INC”. The RS232 outputs are also available from the output ports. The status of input mode: GPS, Master Clock, is too indicated. GPS Time Sync Server also provides time and date in SERTEL format through serial communication port of RS232.NTP Teleclock performance with high-capacity ensures integrating into existing and future networks. KEY FEATURES: Dedicated NTP ports supporting 3000+ Clients 2x16 characters LC display to show the Time, Date, Latitude, Longitude and Time Zone. Equipped with high precision and stable OCXO crystal. Accuracy better than 1 micro second. Supports NTPv4/v3/v2, SNTP, NTP Unicast/Broadcast/Multicast. Supports HTTP/SSL/HTTPS, SHS, SCP, IPv4, IPv6 network security protocols. All types of Operating Systems are supported Packed in 3U of compact size (customizable) with redundant Power Supply unit. Universal Power supply: 90 to 230V AC/DC Necessary proprietary software is provided. Status updates through e-mail. Supports network devices such as Routers, switches, Checkpoint firewalls. Low cost maintenance with durable performance.

Bi - Metallic Temperature Gauges These instruments are housed in weather proof Die-Cast Aluminum & SS304 Cases as per IP-65. These instruments are available in stem type only with bottom & back entry. Hazardous & food Processing environment warrant the use of this type of instruments.

Type : Angle type & without angle type.

Accuracy : ± 2% of FSD (1% is also available)

Connection : 3/8”, ½” , ¾” , BSP / NPT Fixed or adjustable.

These instruments are housed in weather proof Die-Cast Aluminum & SS304 Cases as per IP-65. These case are ideally made to suit surface & panel mounting with bottom & back entry. The instruments are available in rigid stem & with capillary extension. These instruments are designed for quick response. External room temperature will be compensated with case compensation & in critical condition with help of double capillary for full compensation.  

Type : Rigid Stem, Capillary Extension, Anti Vibration type.

Accuracy : ± 1% of FSD

Connection : 1/4”, 3/8", ½” , ¾” , BSP / NPT Fixed or adjustable.

  GPS Time Sync System - T-PAN-300 Time synchronization creates a platform for an entire system comprising wide range of products to operate in synchronous with time. The demand for improving the effectiveness of any system in place is met with time synchronization system deployed in the field. Troubleshooting is simplified by the application of time synchronization in the event of fault analysis. SERTEL manufactures GPS based Time Synchronization System which generates precise time stamp signals that synchronizes various network of electrical, computer, communications devices such as DCS, PLCs, LANs, Computer Buses etc. Most modern protection relays and Intelligent Electronic Devices (IED) come with ports to accept the time synchronization signal. Equipped with high precision and stable OCXO/TCXO, T-PAN-300 is capable of performing during temporary signal loss thus showing its accuracy and reliability. The time stamp in the signal could be transmitted over long distance maintaining the synchronization of the whole network. OPERATION: The signal from the satellite is collected by GPS antenna and transmitted to the GPS Receiver SERTEL GPS Receiver generates time base pulses as that in the UTC or the atomic clock in the GPS satellite from the signal received. Pulses can be generated for every second, minute or hour. Serial data packets comprising date and time information along with the pulses forms the time stamp and are made available in a variety of protocol format such as RS232, NTP/SNTP, IRIGB and many other to interface with wide range of devices. LCD displays in the front panel shows the frequency, date, time and geographical location. These can be viewed with the help of keypad upfront. The status of the GPS receiver is shown by LED indications and alerts during failure through alarm provision. Highly precise and stable OCXO/TCXO compensates for any interferences or loss of signal from the satellite thus making the operation of the receiver reliable. Redundant Master Clocks are provided for continuous functioning of the system. Integrated inside one unit are the Redundant Comparators which receive input from the GPS Receiver and generates numerous output formats embedding time signals into them. External time signal input provision as a source of time signal is provided. Signal Conditioner units are provided to multiply the time signal in various protocols such as RS232, Pulse, PFC IRIGB, TCP/IP and many others to give that many number of provision for connecting other devices for time synchronization. Redundancy in Power Supply is provided through redundant Diode Oring unit to maintain the exact voltage supply to all the units. KEY FEATURES: 12 Channel GPS Receiver and 8 Channel Continuous Tracking. Equipped with high precision OCXO/TCXO crystal for frequency maintaining micro second level accuracy. Accuracy of 187 nano seconds with GPS signal. Redundancy in GPS Receiver, Master Clock, Comparator Unit and Power Supply. Type Tests are certified by ETDC and SAMEER. 4 x 40 characters LC display in Receiver units, 6-digit Date/Time display in Master Clock units. Highly customizable Output / configurable as per customer’s requirements. Configured to work as Stand Alone Clock during temporary GPS signal loss with high tenacity. Output Integrated to 3 decimal of frequency in Hz. Capable to drive a number of Slave Clocks at large distances through multidrop mode. Low cost maintenance with durable performance. Customizable output protocols such as RS232/422/485, IRIG-B AM/TTL, NTP / SNTP, DCF77, BCD, PPH, PPM, PFC, Programmable pulse and others.

OVERVIEW: Network of computers are omnipresent. Synchronization of these computers is highly recommended at all enterprises. This integrates various diversified systems to work in unison. Internetworking has become the backbone for communication and transportation of data and has paved way for advancement in the future. The common time protocol deployed in these networks is the Network Time Protocol (NTP). A less complex implementation of this is the Simple Network Time Protocol (SNTP). SERTEL manufactures GPS based Time Synchronizing NTP Server which generates precise time stamp signals that synchronizes network of computer devices over an entire network of LANs and WANs. Our NTP Server obtains the UTC data from the GPS satellite system and corrects the local time in each connecting computer. NTP provides highly accurate performance depending on the network paths. Equipped with high precision and stable OCXO, T-GPS-300-NTPS is capable of performing during temporary signal loss thus showing its accuracy and reliability. OPERATION: T-GPS-300-NTPS performs Stratum-1 operation by receiving the time signal from the GPS satellites. The Receiver unit generates time base pulses of 1PPS which is an accurate copy as that of the UTC or the atomic clock in the GPS satellite. This is imbibed into the networking protocol NTP that are available at the output ports. NTP Time Sync Server is connected with Redundant Power Supply and the system runs with high precision OCXO for frequency maintaining micro second level. The front panel shows the Time / Date with provision for manual setup through simple user-interface keys “ENTER”, ”NEXT”, ”INC”. The RS232 outputs are also available from the output ports. The status of input mode: GPS, Master Clock, is too indicated. GPS Time Sync Server also provides time and date in SERTEL format through serial communication port of RS232. NTP Teleclock performance with high-capacity ensures integrating into existing and future networks. KEY FEATURES: Dedicated NTP ports supporting 3000+ Clients Performance at nanosecond level. 2x16 characters LC display to show the Time, Date, Latitude, Longitude and Time Zone. Equipped with high precision and stable OCXO crystal. Accuracy better than 1 micro second with OCXO. Supports NTPv4/v3/v2, SNTP, NTP Unicast/Broadcast/Multicast. Supports HTTP/SSL/HTTPS, SHS, SCP, IPv4, IPv6 network security protocols. Supports network devices such as Routers, switches, Checkpoint firewalls. All types of Operating Systems are supported Packed in 3U of compact size (customizable) with redundant Power Supply unit. Universal Power supply: 90 to 230V AC/DC Necessary proprietary software is provided. Friendly user interface with plug- and-play feature. Low cost maintenance with durable performance.

  FURNACE VIEWING TELEVISION SYSTEM - OFT -­ 10 OVERVIEW: The OFT - 10 system represents the current state of the art in furnace and boiler viewing television, incorporating highly efficient air cooling system within a small overall diameter of 50 mm with the provision of automatic retraction system. The OFT - 10 provides major advancements in picture quality over previous designs and offers additional benefits for a significantly low cost.  

  FURNACE VIEWING TELEVISION SYSTEM - OFT -­ 12 OVERVIEW: The OFT - 12 system is designed for installation in incinerators and similar plants where the operating conditions does not necessarily demand the extra performance of water cooling and allows the cost benefits of a simpler system to be enjoyed. The OFT - 12 provides major advancements in picture quality over previous designs and offers additionalbenefits for a significantly lower cost.

OVERVIEW: The VS - TP furnace temperature probe system is designed for installation in boilers and furnaces to monitor the furnace gas temperature. The thermocouple fixed to the head of the probe moves front and back in the boilerat a speed of 1.75m/min. The VS - TP temperature probe, offers to monitor the temperature at different levels in a boiler. The thermocouple feedbacks signal to the DCS.

OVERVIEW: Sertel Alarm Annunciator is a persistent surveillance system used to watch and sense devices of many types and functions. Our Annunciator T-AA-300 can be configured to provide the best solution any size and complex alarm scheme.With field proven multi-redundant ASIC design this annunciator is highly reliable and programmable for all applications and industries.Wide range of window sizes, colours, bulbs that could be accustomed as required. Each individual alarm is fully programmable from the front end using the integral programming module. This allows the user to select many different features giving thousands of possible combinations.Numerous relay outputs are included as standard output to connect to external equipment and individual repeat relays or communications can be supplied as an optional output. The programming flexibility creates option for the users to easily configure hundreds of option including alarm sequence, time delays, relay operation, first-up grouping, functionality, communications and so on.Multiple back lit windows are provided, each engraved with the name of the process alarm. OPERATION: The annunciation unit is built with panel mountable and wall mountable types which can be supplied as per requirement. In front side, removable Legend display Facias are installed in A4 size standard sheets. In the rear side, the input connections and power supply connections are provided.Input card and the mother board cards are completely isolated. Input cards have connection to the input field contacts, power supply unit and external push button connections. All inputs are completely isolated from the mother board. This input card can serve from 8 to 1000 channels by cascading them.Card extensions are provided for easy increase in channels by creating a daisy-chain network of Input, Output, Repeat Relay cards. The alarm contact relays and hooter contacts are present in the input card.Each channel can be configured for the following Trip / Non-trip Alarm N.O. / N.C. Input configurations The whole unit has self-diagnostic features, power failure management and other redundancy features. Power failure indications are provided in the front side of the annunciator. KEY FEATURES: Modular construction from 1 to 256 alarm channels. Optically isolated input points. Accurate operation and compact operation. Multi-redundant design leading to no single point of failure. Wide range window sizes, colours. Low cost RS485 duplex communications option. Robust to meet Industrial, Utility Standard. Front panel configuration access provided. Variable mounting options. Modern aesthetic design Remote data monitoring and Report generation capability. Flexible configurations on input and output side. Serial ports, TCP/IP outputs available (customizable) Internal power supply 48V DC or 125/250V DC/AC. Low cost maintenance with durable performance.