An Art Of Excellence  

Electrical Metrology

Ohm - Standard Resistors 

Ultra Primary / Primary / Secondary / Industrial

Ultra Primary : 1Ω, 10Ω, 100Ω, 1kΩ, 10kΩ, Accuracy : ±2ppm ( +/- 0.25ppm and +/- 1ppm available optionally ), TCR : ±0.05ppm/°C, Stability : ±0.2ppm/Year (typical) / ±0.5ppm/Year

Primary : 1Ω, 10Ω, 100Ω, 1kΩ, 10kΩ, 100kΩ, 1MΩ, 10MΩ, Accuracy:±5ppm, TCR: ±0.2ppm/°C (10MΩ:±0.5ppm/°C), Stability : ±3ppm/Year (10MΩ:±6ppm/Year)

Secondary : 1mΩ, 10mΩ, 100mΩ, 100kΩ, 1MΩ, 10MΩ, 100MΩ, Accuracy : ±10ppm to ±100ppm, TCR: ±1ppm/°C - ±10ppm/°C, Stability : ±10ppm/Year - ±25ppm/Year

High Power Resistors : 1mΩ, 10mΩ, 10mΩ, Accuracy : ±25ppm to ± 100ppm,   TCR: ±2.5ppm, Stability : ±10ppm/Year

Milliohm calibration resistor box :  1mΩ, 10mΩ, 100mΩ, Accuracy : ±200ppm - ±500ppm,  TCR: ±5ppm/°C - ±15ppm/°C, Stability : ±25ppm/Year

Resistance Transfer Standards : Resistance: 1Ω - 100Ω, 10Ω - 1kΩ, 100Ω - 10kΩ, 1kΩ - 100kΩ

                                                                                             10kΩ - 1MΩ, 100kΩ - 10MΩ, 1MΩ - 100MΩ
                                                          Accuracy : ±10ppm - ±50ppm(Absolute), ±5ppm - (Matching) 
                                                                 TCR : ±1ppm/°C - ±10ppm/°C(Absolute), ±1ppm/°C - (Matching

Decade Boxes - Resistance and Capacitance

Six Decade Resistance Box, 0.005% accuracy, Decades : 0.001 ohm to 100ohm,...........10ohm to 1Mohm

Decade Capacitance Box, 0.25% accuracy, Max voltage 50V, 100pF to 100microF

Programmable Resistance Box, 0.01% accuracy, 0.001ohm max resolution, 5 ohm to 199.999kohm

Programmable High Voltage High Resistance Box 1Mohm to 11.99Gohm, 5kV, 0.1% best accuracy

Optionally 10kohm to 1Tohm, 10nF/50nF/100nF, 50V to 10kV, 0-5mA


Current upto 4.5kA or more

Linearity 1 ppm

Offset Max 8ppm

Max total error < 4ppm for 50% primary current input level

NMI certification

Applications : Particle accelerators , Ions Therapy, Accredited Laboratories, Evaluation of Power transformers / motors / generators / conditioners

Metrology Products -  Primary & Secondary

DCC / CCC Resistance Bridge & Range Extenders with scanners, upto 1Pentaohm 

High Precision Resistance Measuring Bridges, Teraohmbridge

AC Voltage reference

Air Bath, Maintenance Bath for standard resistors

Capacitance Bridge

Standard Capacitor / Standard Inductor

Voltage & Current source

Voltage Divider

Transconductance amplifier

Phase standard meter

On Site Calibration of Transformer Loss Measurement Systems

Calibration of the individual components of the 3 phases of a LMS setup (CT, PT, capacitor, divider, power meter)

OR Calibration of LMS system as a whole

Range 2000 A, 230 kV (l-g) 

ISO\IEC 17025 accredited with a CMC of 5 ppm for CTs, 20 ppm for VTs, 15 ppm for power, and 25 ppm for LMS calibrations as a whole system

Calibration set up is easy to use for flexible control of test signals and for automated running of the calibration. It utilizes digital techniques embedded at the heart of the system and is traceable to SI and provides uncertainties down to 0.003 % in magnitude and 0.1 minute in phase respectively