As the business grows, so does the need for a one-stop calibrating agency.
Sigma’s Calibration Division offers a host of calibration services to organizations….

  • Workshop and On-Site calibration for test equipment , process equipment ,and in many cases end –user equipment.
  • Plant Shutdown calibration, and maintenance and Commissioning Activities.
  • Consultancy for setting up an in-house calibration of company.
  • Consultancy for manpower.

Calibration Services
Sigma Engineers currently has calibration facilities for over thirty staple instruments in seven categories. Custom manufactured equipment can also be calibrated, if specifications are available.


  • Pressure Gauge
  • Vacuum Gauge
  • Pressure Indicator
  • Pressure Transmitter (DCS and FF Protocol)
  • Differential Pressure Transmitter (DCS and FF Protocol)
  • Pressure Switch


  • Digital Temperature Controllers.
  • Muffle Furnaces and Hot Air Ovens.
  • Water and Oil Bath.
  • Temperature Gauge
  • Temperature Transmitter (DCS and FF Protocol)


  • Flow Transmitter (DCS and FF Protocol)


  • Level Transmitter (Both Type) (DCS and FF Protocol)
  • Level Switch


  • Weight Box
  • Analytical Balance


  • Vernier Caliper
  • Micrometer
  • Dial Gauge


  • I/P Calibration
  • Control Valve Calibration(DCS and FF Protocol)
  • Safety Valve
  • Fire, Flame and Gas Detector
  • Dead Weight Tester
  • And Mani more……….


  • Area Mapping
  • Temp Scanning(Mapping)

Maintenance / Repairing

  • Control Valve
  • On off Valve
  • Solenoid Valve
  • Pressure Gauge
  • Digital Temp Controller
  • Safety Valve


Offering calibration validity equivalent to master calibrators, you can rest assured that our calibration certificates minimize your downtime and calibration periodicity.

          On-site calibrations reduce the needs for expensive equipment overhaul.  It also gives a chance for you to personally supervise our dedicated service technician at your site.

With master calibrated from NPL Through , EQDC and ERDA.
Also we are providing services in Erection Project like Tray work, Panel Installation, Instrument Installation and Tubing work, Cable Laying Erection of support and commissioning activities.  We are having our project in Pharma, Oil and Gas field .