Sigma Automation (P) Limited
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Digital Temperature Controllers Digital Temperature Process Controller Data Indicators
Data Loggers and Scanners Digital Scanners Digital Timers
Digital Counters Solid State Relays Sensors
Transmitters PC Based Data Acquisition System Signal Transmitters
Process Control Instruments & Systems
We are engaged in designing, manufacturing, marketing and exporting of various electronic process control instruments & systems. Our equipments are rugged and are popular for their user-friendly attribute. These are specially designed to work in hostile environment providing trouble free services for a very long time. With an estimated delivery lead time of twelve days, we guarantee the finest quality and reliability of our products. The spectrum of products include following:


Digital Temperature Controllers
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Digital Temperature Controllers

We offer a range of digital temperature controllers that are used manage temperature of an object. It is done by measuring the existing temperature and making adjustments in ingress or egress of thermal energy to attain the preferred temperature. These controllers find usage in industries of textile, frozen products, metal, medical, and many more. Available in different sizes, these temperature controllers are offered in different models that are tabulated below:

TC 3001Digital Temperature Controller, Single Set Point
TC 3002Digital Temperature Controller, Two Set Point
TC 3004Digital Temperature Controller, Four Set point
Input Type ThermocoupleJ,K, T,R,S
-RTDPT 100
Output Type Electromagnetic Relays, Solid State Relay, 4 to 20 mA, 0 to 5V, 0 to 10V
Control Type On- Off , Time Proportioning, Digital PID
Supply 230 V Ac, 50 Hz

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Digital Temperature Process Controller
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Digital Temperature Process Controller

Digital temperature/process controller is one of our most acknowledged equipments. It has in-built features of dual display and timer. Salient features of the product are tabulated below:

Type of Control ON/OFF, OFF/ON, Proportional with Cycle time/offset Variable
Set Value Max Set Value, Alarm Constant Value Set in Configuration Mode
Display Range Digital Calibration by end user to match with transducer
Inbuilt TimerTimer gets actuated after process has attained the set value & shuts off the output after time lapse, with elapsed time retention in case of power failure


Different models of digital temperature/process controller, available with us are as follows:
TC-30M1Single Set Point
TC-30M2Two Set Point
TC-30M2Two Set Point with Timer &Additional Output for Alarm
Input TypeThermocoupleJ,K,T,R,S&B
RTDPt-100,Pt-1000
PC-30M1Single Set Point
PC-30M2Two Set Point
PC-30M2Two Set Point with Timer &Additional Output for Alarm
Input TypeTransducer4 – 20mA,0-1V,0-10VDc

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Data Indicators
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Data Indicators

We offer a range of data indicators under series TI. These indicators are of panel-mount type and displays different parameters including humidity, voltage, temperature, pressure, current etc. The data indicators are available with us in different models; a couple of most popular ones, along with their features are tabulated below:

TI 1000Single Point Digital Indicator, 31/2 digit, LED display, Single point analog input, optional analog output, 0.1 or 1 unit resolution
TI 1004Digital Indicator, 41/12, digit, LED display
Input TypeTemperature Thermocouple Type – J, K, T, R, S
  RTD PT 100
 Humidity Polymeric Capacitance
 Voltage AC, DC
 Current AC, DC
 Pressure
 Strain
Supply 230 V AC, 50 Hz


Other models of data indicators include following:
TI 108 - Multi Point IndicatorUp to 8 channel analog input in one equipment
Display of channel numbers
Optional analog output
Panel mount
LED Display
0.1 or 1 unit resolution


TI 108 - Multi Point IndicatorUp to 8 channel analog input in one equipment
Display of channel numbers
Optional analog output
Panel mount
LED Display

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Data Loggers and Scanners
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Data Loggers and Scanners
Item Code: I-Series

We offer an assortment of data loggers and scanners (I-Series) to our clients. Data loggers are the equipments that displays and logs the measured value, on basis of analog inputs accepted. The equipment also displays date and time either to a printer or a PC. Different models of data loggers and scanners are tabulated below:

M208P- Eight Channel data logger with printer and PC interfaceData logger with 8 channel, Real time clock, direct printer interface and Serial PC interface with date and time, Individual alarm setting and status on the front panel
M 332A- Multi channel data logger with native memory and PC interfaceData logger 32 channel, Expandable up to 64 channel with Serial PV Interface and local memory for logging, Real time clock, PC (Serial) interface to down load the logged values, Powerful windows based user interface software to download the logged values, analyze and report
M108P- Eight Channel scanner with PC interface8 analog inputs, real time clock, Multi point scanner with Auto/manual scanning, Serial communication to transfer measured value and alarm status to PC, high and low individual alarm set points

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Digital Scanners
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Digital Scanners
Item Code: TS-108

We specialize in designing and developing of digital scanners in customized options, as per our clients’ specifications. It accepts inputs such as thermocouple, RTD, voltage and current. Salient features of these scanners include:
  • Up to 8 inputs in one equipment
  • Auto and manual scanning facility with programmable time interval for auto scanning (digitally set)
  • Channel number display
  • 01. or 1 unit resolution
  • Optional RS 232 or RS 485 communication output
  • 230 V AC 110 V Ac power supply
  • 96 x 96 DIN enclosures

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Digital Timers
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Digital Timers

We offer digital timers or time relay switches, where the time can be adjusted and set to active a relay after the elapsed time. These entities are displayed on the front display. We also offer universal timers (Ux 2000 series), in which time, unit of time, relay logic and mode of operation can be set by the user. Its salient features include:
  • Universal Time 100 ms to 99 hours (User selectable)
  • Power ON delay / OFF delay, interval and cyclic modes (User selectable)
  • Quartz crystal based accuracy
  • External command for start (time initiation) and reset
  • User programming is through digital setting via the front panel (no jumpers or dip switches)
  • 2 change over relay output rated for 5A at 250 V AC
  • Front panel LED annunciation of relay status, unit of time and cyclic operation


Specifications
  • Power Supply - 230 V AC or 110 V AC
  • Display - 2 digits
  • Output - 2 pole 2 way relay rated for 5A at 250 V AC
  • Annunciation - Output status, unit of time selected and cyclic operation, through LEDs
  • Modes - Interval timer or cyclic timer
  • Start and Reset - External command
  • UT 2000 - DIN Rail mount
  • UP 2000 - Panel mount 72 x 72

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Digital Counters
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Digital Counters

It is one of our most demanded components which find immense usage in electronic products. Widely used in automobile industry, the equipment can be customized according to the specifications provided by our clients.

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Solid State Relays
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Solid State Relays

Backed by our diligent personnel, we offer solid state relays in different models. We design and develop these relays in standard as well as custom build packages. Salient features of the solid state relays are:
  • Optically Isolated
  • Faster Switching
  • Output Snubber Circuit Included
  • High Surge Rating Allows
  • Led Indicator
  • Noiseless
  • Low Consumption Input
  • Zero Current Switch-Off
  • Protection Cover


Models And Specifications

SSR 16Solid State Relay, 16A/250 V AC, Input 3 to 30 V DC
SSR 16ASolid State Relay, 16A/250 V AC, Input 230 V AC
SSR25Solid State Relay, 25A/250 V AC, Input 3 to 30 V DC
SSR25ASolid State Relay, 25A/250 V AC, Input 230 V AC
SSR40Solid State Relay, 40A/250 V AC, Input 3 to 30 V DC
SSR40ASolid State Relay, 40A/250 V AC, Input 230 V AC

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Sensors
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Sensors

We are engaged in the manufacture and export of different sensors that find application in diversified industries. The equipment can be customized according to the specification provided by our clients. Pressure sensors and humidity sensors are a couple of our demanded sensors.

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Transmitters
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Transmitters

Leveraging on our rich experience, we offer different types of transmitters/transducers to our clients. Transmitters take analog inputs & convert the analog value into a comparative voltage/current depending on the specific requirement. Available in isolated and non-isolated models, common features of transmitters are as follows:
  • Common analog inputs: temperature, pressure, humidity, flow, voltage, etc.
  • Common outputs: 4-20 mA, 0-20 mA, 0-10V, 0-5V and 0-1V

Different types of transducers available with us are as follows:

TTN 410 Non isolated TransducerAccept inputs like temperature, pressure, humidity, voltage etc. Converts it into a linearised proportional analog signal like 0-10V or 4-20mA, which is normally accepted by PLC and DCS systems
TTI 510 Isolated Transducer Accept inputs like temperature, pressure, humidity, voltage etc. and convert it into linearised proportional analog signal like 0-10V or 4-20mA, which are normally accepted by PLC and DCS systems. This model provides an optical isolation between the input and the output

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PC Based Data Acquisition System
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PC Based Data Acquisition System

We develop and export PC based data acquisition system in various countries. Salient features of this system include:
  • Connected to external sensors through a PC based data acquisition add-on card or through the I Series dataloggers connected through a RS 485 network
  • With distances as long as 1 KM (expandable using repeaters) is permitted. This distance is measured from the dataloggers/sensors to the PC workstation.

For the configuration and operation of this system, we provide Data Wire, which is a user-friendly software running on Windows 32 bit platform. The following standard features are provided on the software:
  • Display Overview
  • On-line trending
  • Graphs
  • Data Logging
  • User changeable Labels
  • Alarm Annunciation
  • Short term trending
  • Historical trends
  • Data Exporting to other packages
  • Report Generation

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Signal Transmitters
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Signal Transmitters

Committed to achieve maximum customer satisfaction, we offer signal transmitters and converters to our clients. Used in diversified industries, these equipments are available in different models that are tabulated below:

TT2Two Wire Transmitter, Loop Powered
TT4Signal Transmitter, 230 V AC operated
SI 100Isolated Signal converters
Input:Temperature Thermocouple, RTD Humidity Polymeric Capacitance, Any Electrical Parameter
Output:4 to 20 mA, 0 to 10 V, 0 to 5 V, or any user specific Parameter
Supply:23 V DC Loop Powered or 230 V AC or 110 V AC

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