• Introduction of Calibration
  • Dimensional Laboratory
  • Torque Metrology
  • Pressure & Acoustics Metrology
  • Mass and Volume Metrology
  • Density & Viscosity
  • Electro-Technical Metrology
  • Thermal Metrology
  • Force, Hardness and Impact Metrology
  • Fluid Flow Metrology
  • Acceleration & speed metrology
  • Optical Metrology

What is Metrological Calibration?

The word “calibration” may be used (and misused) in different contexts. Here, we are talking about metrological calibration in the world of measurement technology. Formally, calibration is the documented comparison of the measurement device to be calibrated against a traceable reference device. The reference standard may be also referred as a “calibrator.” Logically, the reference is more accurate than the device to be calibrated. The reference device should be also calibrated traceably, more on that later on. With some quantities the reference is not always a device, but can also be for example a mass, mechanical part, physical reference, reference liquid or gas. The above formal definition comes from the BIPM (Bureau International des Poids et Measures)

Does calibration affect me?

Yes. Even the most precise measurement instrument is of no use if you cannot be sure that it is reading accurately – or, more realistically, that you know what the error of measurement is.

How is calibration done?

By checking the instrument against known reference standards that have themselves been calibrated in a chain of measurements that can be traced back to agreed International Standards – the system of SI units.

My company needs to meet the requirements of ISO 9001 Standard. Is calibration required?

Yes. Demonstrable control of measurement and test equipment is required. Part of this is ensuring that instruments are calibrated on a rational periodic cycle, and that records are maintained and reviewed.

How do I know that my calibration is “traceable”?

By using a calibration laboratory that is accredited to international standard ISO / IEC 17025. This standard requires laboratories to demonstrate competence in both the technical aspects of the measurements and in the quality assurance aspects that ensure that you will get the service that you ask for if you have specific requirements, or will ensure that you get a useful and valid certificate and set of results if you wish to leave the detailed requirements to the laboratory.

How often should my instrument be calibrated?

This depends on how important the measurements being made are to your product or service; the degree of wear and tear that the instrument will experience in service; the stability of the instrument itself and a review of the calibration records that already exist to determine whether adjustment has been needed previously.

Do I need more than just a certificate?

It is very difficult to judge the performance of your instrument without a set of calibration results. With standard certificates, these results should have been compared to the published specification by the calibration laboratory and will normally be categorized to show conformance to specification. ISO / IEC 17025 certificates often give the results in more detail, with an indication of any results that fall outside specification

Dimension Metrology

Dimension Metrology provides consistent, extensive, accurate and timely calibration services. Our Laboratory is equipped with latest technology and high accuracy masters to achieve lower uncertainty resulting one of the largest reliable labs in India.

Our laboratory is conditioned and monitored to maintain at a temperature of 20°C ± 1°C and relative humidity of 50% ± 10% to minimize the thermal expansion thereby obtaining most accurate measurements.

Our precision equipment is designed to reduce risk and inaccuracy in measurements. Our metrology experts at Jayasree Reva Phoenix Metrology Private Limited deliver industry-leading dimensional tool calibration services employing the latest technology to deliver precision measurement and uncertainty control.

Our dimensional capabilities far exceed those of the typical dimensional calibration labs. We do provide advice about the dimensional calibration and inspection processes, so that you can choose the best equipment and methods to assist in controlling costs and purchase of additional equipment. We keep an open line of communication with them during and after the dimensional calibration service so the customers are kept aware of the progress of their calibration services.

Our Dimensional Laboratory contains following High Precision Master Equipment:

Our Dimension calibration – capability:

Using the Master Equipment we can calibrate the equipment with capabilities like

  • Calipers
  • Height Gauges
  • Depth Gauges
  • Depth Micrometer
  • Dial Bore Gauge
  • Plunger Dial Gauge
  • Lever Dial Gauge
  • Micrometer Head
  • Dial Caliper Gauge / Groove Dial Gauge
  • Internal Micrometer
  • Internal Micrometer
  • External Micrometer
  • Three Point Micrometer / Hole Tester
  • Dial Snap Gauge
  • Dial Snap Micrometer
  • Dial Thickness Gauge
  • Height Micrometer / Height Master
  • Riser Blocks
  • Straight Edge
  • Comparator Stand
  • Engineer Parallel / Parallel Blocks
  • Caliper Checker
  • Check Master
  • Depth Micro Checker
  • Length Bar
  • Micrometer Setting Rod
  • Long Gauge Blocks
  • Plain Gap Gauge
  • Hub Gauge
  • Snap Gauges
  • Length Gauge
  • Pitch Micrometer
  • Pistol Caliper
  • Groove Micrometer
  • Engineer Square / Try Square
  • Angle Plate / Box Angle
  • Sine Bar/ Sine Center
  • Thread Pitch Gauge
  • Cone Master
  • Angle Gauge Blocks
  • Taper Scale
  • Radius Gauge
  • Test Sieves
  • ‘V' Block
  • Feeler Gauge Set
  • Master Foils / Thickness foils
  • Slip Gauge Accessories Set
  • Flush Pin Gauges
  • Width Gauge
  • Thread Measuring Wires / Three Wire Units
  • Cylindrical Setting Masters
  • Mandrels
  • Measuring Pins / Pin Gauge
  • Thread Measuring Prisms
  • Plain Plug Gauges
  • Spline Ring Gauges
  • Spline Plug Gauges
  • Thread Plug Gauges / Wear Check Plug Gauges
  • Taper Thread Plug Gauge
  • Thread Ring Gauges / Wear Check Ring Gauges
  • Taper Thread Ring Gauge
  • Plain Ring Gauges / Setting Ring Gauges
  • Taper Plain Plug gauge
  • Taper Plain Ring gauge
  • Coating Thickness Gauge
  • Ultrasonic Thickness Gauge
  • Surface Roughness Specimens
  • Measuring Tape / Pie Tape
  • Measuring Steel Rule / Steel Scale
  • Wire Gauge
  • Wet Film Thickness Gauge
  • Degree Protractor Digital / Inclinometer
  • Bevel Protractor / Combination Set
  • Clinometer
  • Optical Flat
  • Ocular / Graticule
  • Spirit Level / Frame Level / Coincidence Level
  • Proximity Sensor
  • Hegmann Gauge
  • Wet / Dry Film Applicator
  • Thickness Gauge / Elongation gauge
  • Length Gauge / Flakiness Gauge
  • Plunger Dial Gauge / Penetrometer
  • Depth indent Measurement Device for Hardness Tester
  • Weld Gauge
  • Weld Fillet Gauge
  • Bridge Cam Gauge
  • Hi-Lo Gauge
  • Paddle Gauge
  • Step thickness
  • IIW V1, V2 Blocks
  • Limit Gauges
  • PCD Gauge
  • Receiver Gauge
  • Rockwell Diamond Cone Indenter
  • Vickers Diamond Cone Indenter
  • Brinell Ball Indenter
  • Templates
  • Master cylinder / Granite L-Square
  • Step Height Specimen / Step Gauge
  • Impact Test Specimen
  • Notch Profile Template
  • Support of Self Centering Tong
  • Stage Micrometer
  • V Notch Gauge
  • Cross Hatch Cutter
  • Gear Tooth Vernier
  • Electronic Probe with DRO / Comparator with Stand
  • Dial Comparator
  • LVDT Probe
  • Micro Dial Comparator
  • Gauge Blocks
  • Sphere
  • Floating Carriage Dia. Measuring M/c.
  • Dial Calibration Tester
  • Electronic Level
  • Surface Roughness Tester
  • Extensometer
  • Surface Plate
  • Bench Center
  • Brinell & Vickers Hardness Measuring Device (Verification of Linear) Travel
  • Length Measuring
  • Profile Projector
  • Video Measuring Machine
  • Metallurgical Microscope / Tool Makers Microscope
  • 2D Linear Height Gauge
  • 3D Co-ordinate Measuring Machine
  • Gauge Block Calibrator
  • Tape & Scale Calibrator

Torque Metrology

Torque Metrology is designed and equipped with high range (3000 Nm) computerized torque wrench calibration system complies to ISO 6789: 2017 International Standards.

Jayasree Reva Phoenix Metrology Private Limited utilizes high accuracy load sensors to perform calibrations. Torque Calibration includes Torque Screw Driver Up to 12 Nm and Torque Wrench calibrations range covers 0-3000 Nm done through Torque Wrench Calibration System High Precision Sensors with indicators

We take responsibility in helping and supporting our customers to effectively use the results from their calibration certificate to make decisions.

Our Torque calibration – capability:

1. Torque Wrench
2. Torque Screw Driver
3. Torque Dial Gauge

Pressure & Acoustics Metrology

Pressure metrology has sophisticated equipment like high accuracy pneumatic and hydraulic dead weight tester for calibration of high accuracy pressure indicating devices at laboratory. Our pressure lab offers high positive pressure reference up to 58000 psi (4000 bar) and low positive pressure standards from -30 mbar to -1000 m bar in lab.

Our Acoustics metrology offers calibration of sound level meters with high precision masters to obtain better measurement results.

Pressure calibration can be custom-tailored to meet your specific requirement, either at our laboratory or at your site.

Our Pressure calibration - capability:

  • Differential Pressure Gauge
  • Pressure Transmitter
  • Low Pressure Manometer
  • Pressure Transducer
  • Digital Pressure Gauge
  • Pressure Switch
  • Analog Pressure Gauge
  • Vacuum Gauge
  • Pressure Calibrator
  • Compound Gauge
  • Magnehelic Gauge
  • Level Gauge Manometer
  • Pressure Indicator
  • Pneumatic Pressure Gauge
  • Manometer
  • Hydraulic Pressure Gauge
  • Pressure Controller
  • Absolute Pressure Gauge
  • Pressure Recorder
  • Barometer
  • Pressure Logger

Our Acoustics Calibration – Capability

Sound Level Meter

Mass & Volume Metrology

Mass Metrology is equipped with high precision micro and semi-micro balance for calibration of High accuracy E1 & E2 class weights.

We calibrate wide range of weighing scale / balances from 1mg to 2000 kg using high accuracy weights. In addition to mass calibration, our laboratory performs volume, density and viscosity calibration includes Micro pipette rages from 1 µl to 10000 µl, pipette ranges from 0.1 ml to 100 ml, Burette and pycnometer ranges from 1ml to 100 ml, Measuring cylinder ranges from 1 ml to 10000 ml, Volumetric / Le-Chattier Flask ranges from 1ml to 2000 ml, Measuring Jar ranges from 1 ml to 10000 ml, Bulk density cylinder ranges from 3000 ml to 15000 ml, Hydrometer - Density Hydrometer, Twaddle Hydrometer, Baume Hydrometer, Specific Gravity Hydrometer, Brix Hydrometer, Lactometer, Alco meter, Be° Hydrometer, °API)$, Density of liquids, Density of solids, Density of unknown liquid, Viscosity cup, Ford cup etc.,,

Our Mass and Volume calibration – Capability:

  • Standard Weights( E1 & E2 ) Class 
  • Weighing Scale and Weighing Balance 
  • Micro Pipette 
  • Pipette 
  • Burette 
  • Pycnometer 
  • Volumetric Flask 
  • Le Chatlier Flask 
  • Measuring Cylinder 
  • Measuring Jar 
  • Bulk Density Cylinder

Density and Viscosity calibration

Our Density and Viscosity calibration – Capability:

  • Density Hydrometer 
  • Twaddle Hydrometer 
  • Baume Hydrometer 
  • Specific Gravity Hydrometer 
  • Brix Hydrometer 
  • Lactometer 
  • Alcometer 
  • Be° Hydrometer 
  • °API 
  • Density of Liquid 
  • Density of Solid 
  • Density of Unknown Liquid 
  • Viscosity Cup 
  • Ford Cup 
  • DIN Cup 
  • ISO Cup 
  • Shell Cup 
  • Zahn Cup 
  • Dip Cup 
  • Flow Cup

Electro-Technical Metrology

Electro Technical Metrology utilizes Multi-product calibrator (MPC) & 8.5 Digital Multimeter (DMM) to perform calibration of source and measure parameter.

Electro-Technical calibration includes wide range of DC / AC voltages 1 mV to 1000 V @ several frequencies, DC / AC current 10 µA to 1000 A, frequencies up to 2 MHz, Resistance 0.01 Ω to 1 TΩ, Temperature Simulations of K, J , T, U, N, B, E, R, S type Thermocouples & RTD Sensors (Source, Measure), AC / DC Power (100 mW to 20 kW), Power Factor (0.2 to UPF), Capacitances (100 pF to 10 µF), Inductance (100 µH to 10 H), Digital Oscilloscope (up to 1 GHz), Timer (1 sec to 24 Hrs), High Voltage measurement 40 kV DC / 28 kV AC (at lab & onsite) & Current source measurement (Up to 150 A).

Our Electro – Technical calibration - Capability

  • Analog Voltmeter
  • Digital Voltmeter
  • Multimeter
  • Clamp meter
  • Digital mA Meter
  • Temperature indicators/controllers
  • Current Sources Stopwatch
  • Analog Ammeter
  • Digital Ammeter
  • Analog Wattmeter
  • Power Meter
  • Power Factor Meter
  • Inductance Box
  • Resistance Boxes
  • High Voltage Tester
  • Micro Ohm Meter
  • Insulation Tester / Megger
  • Digital Oscilloscope
  • LCR Meters
  • Capacitance Box
  • Voltage sources
  • Temperature Calibrators
  • Timers

Thermal metrology

Our Thermal Calibration lab is designed and constructed to meet the requirements of IEC 17025 and NABL standards for the calibration of Thermal equipment’s.

Thermal Metrology utilizes Semi – Standard Platinum Resistance Thermometer, S-Type Thermocouple and Standard pyrometer to perform calibration of contact and Non-contact type temperature sensors.

Thermal Calibration includes range from -196°C, -80°C to 1200°C for contact type temperature sensors, 50°C to 1700°C for non-contact type IR sensors. We have facility to calibrate Glass Thermometer ranging from -80°C to 250°C. We also calibrate Hygrometer and Humidity sensors ranging from 5°C to 60°C and 10% to 95% RH.

We do onsite calibration for furnace, chambers, water bath, freezer and oven (single point calibration from -80°C to 1500°C and multipoint calibration from -80°C to 1200°C) and humidity chamber calibration from 10% to 95% RH.

Our Thermal Calibration – Capability:

At Lab

  • lass Thermometer
  • Thermocouple
  • RTD
  • Temperature Indicator with sensor
  • Temperature transmitter
  • Temperature gauge
  • Temperature switch
  • Pyrometer
  • IR Thermometer
  • Black Body Source
  • Dry bath
  • Liquid bath
  • Hygrometer
  • Humidity Sensor 

At Site

  • Thermocouple & RTD
  • Glass Thermometer
  • IR Thermometer
  • Black Body Source
  • Temperature indicator of furnaces
  • Temperature indicator of BOD Incubators
  • Temperature indicator of freezers / Deep Freezers
  • Temperature indicator of Auto Claves
  • Temperature indicator of Ovens- Single point
  • Oven - Multipoint
  • Refrigerator - Multipoint
  • Furnaces - Multipoint
  • Temperature indicator of Incubators
  • Temperature indicator of water Baths
  • Deep Freezers - Multipoint
  • Chambers - Multipoint
  • Humidity Chambers - Multipoint 

Force, Hardness and Impact Metrology:

Jayasree Reva Phoenix Metrology Private Limited offers calibration Mobile Force measuring systems and Uni-axial testing machines.

Our lab is equipped with high accuracy Newton weights for calibrating push & pull force gauges &Spring balances ranging up to 2000 N. We also equipped with high accuracy load cells for calibrating Universal testing machines, Creep Testing Machines, Compression testing machines and Tensile testing machines ranging from 100 N to 1000 kN both in tension and compression mode.

We do calibration (indirect verification) of Hardness machines including Rubber Hardness Testing Machines, Rockwell Hardness Testing Machine, Brinell Hardness Testing Machine, Vickers, Micro Vickers and Leeb’s portable hardness testing machines. We use imported blocks for calibrating Hardness testing machines to get accurate results and better uncertainty.

We undertake the preventive maintenance and periodic calibration of all types of material testing machines. Our calibrations are traceable to National / International Standards.

Our Force, Hardness & Impact Calibration – Capability:

At Lab

  • Durometers (Shore A and Shore D)
  • Push and Pull Force Gauges
  • Leeb Portable Hardness Testing Machine

 At Site

  • Uni-axial static Testing Machines – UTM, TTM, CTM & Creep Testing Machine
  • Rockwell Hardness Tester
  • Brinell Hardness Tester
  • Vickers Hardness Tester
  • Micro Vickers Hardness Tester
  • Rubber Hardness Tester / Durometer
  • Charpy & Izod Impact Tester
  • Speed of Uniaxial testing machine

Fluid Flow Metrology:

Fluid flow metrology offers calibration of velocity meters like different types of Anemometers to the customers to from a wide range of Industrial sectors like HVAC systems, Automotive, wind mills, process Industries, chemical industries, flow meters manufacturers, Research and Development centers, Academic Institutes etc.,

Our Fluid Flow calibration - capability:

  • Anemometer (Velocity of air)


Acceleration and Speed Calibration Metrology:

Acceleration & speed metrology performs calibration of tachometer both in contact and Non-contact mode, RPM meters, Centrifuge, RPM source/ calibrators, stroboscope etc.,

Our high precision Masters has the capability to calibrate meters up to 10,000 rpm in contact mode and 1,00,000 rpm in Non-contact mode.

We also perform onsite calibration for centrifuge and RPM source / meters.

Our Acceleration and Speed – Capability:

At Lab

  • Tachometer (Contact and Non – Contact)
  • RPM Indicator
  • Stroboscope

On Site

  • Centrifuge
  • RPM Meter / Source


Optical Metrology:

Optical Metrology at Jayasree Reva Phoenix Metrology Private Limited has the scope for calibration of lux and light meters. Our optical Metrology is equipped with 3 meters test bench setup to cover the entire range of lux / light / illuminance meter calibration.

Whether you work with sodium, tungsten, mercury of florescent lightening, when it comes to light meter calibration, you can rest assured that our team of highly trained Engineers will calibrate your equipment with the highest level of precision.

We have the capability to calibrate lux / light meters up to 2 lakh lux using V(λ) & cosine corrected photometers, with detector based photometery calibration gives accurate results.

We also offer calibration for luminous intensity on light source for up to 1200 candela

Our Optical calibration - capability:

  • Illuminance / Lux / Light meters
  • Luminous Intensity (Light source)


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