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Electrical Calibration Services
The electro-Technical Calibration laboratory is one of the significant laboratories helping the industries by providing electrical calibration services for almost all, electrical, electronic, a test measuring instruments like DMMS, Panel meters, Oscilloscope, Breakdown Tester, LCR meters, Power and Energy meters, Micro Ohmmeters, Function generators, Signal generators, Timers etc.
We use state of the art equipment to ensure the highest degree of measurement confidence. The Electro-Technical Calibration standards maintained by STRC are regularly upgraded and are traceable to the national and international standards through the high precision electrical calibration services laboratories.
Standards and Instruments Used:
Fluke Multifunction Calibrator 9100 as a source, Fluke 6 Digit Digital Multimeter, Fluke High Voltage Calibration System and Power Analyser as a measuring instrument.
Source Parameters:
DC Current, AC Current, DC Voltage, AC Voltage, Resistance, Capacitance, Frequency, Power Factor, Power at various power factors, Energy at various power factors, Temperature, Time Interval.
Instruments Which Can Be Calibrated:
Multimeter up to 51/2 digit, Process calibrator, Clamp meter, LCR Meter, AC/DC Voltmeter, AC/DC Ammeter, Frequency Meter, Ohms Meter, Power Factor Meter, I.R Tester, Temperature Controller /indicator / Recorder/ Process Meter/Temperature Data Logger, Timer/Stop Watch etc.
Measurement Parameters:
AC / DC Voltage, AC / DC High Voltages, DC Current, AC Current (at 10 Hz TO 10 kHz Frequency), Resistance, Capacitance, Temperature Controller /indicator / Recorder/ Process Meter/Temperature Data Logger, Time Interval, Frequency.
Instruments for Calibration:
AC/DC High Voltage Tester, AC/DC Power Supply, Reference Ballast, Standard Resistance/ Capacitance Box, Wheatstone Bridge/Kelvin Bridge, CT etc.
| S.No. | Measured Qty. / Instrument | Range/Frequency | *Calibration Measurement Capability (± %) | Remarks |
| AT LABORATORY SOURCE | ||||
| 1. | DC VOLTAGE | 1 mV to 300 mV 300 mV to 300 V 300 V to 1000 V |
0.5 to 0.013 0.013 to 0.02 0.02 to 0.013 |
Using Fluke 9100 by Direct Method |
| 2. | DC CURRENT | 1 µA to 300 mA 300 mA to 10 A 10 A to 1000 A |
1.5 to 0.16 0.16 to 0.10 0.10 to 0.9 |
Using Fluke 9100 by Direct Method Using CC 50 Turn |
| 3. | AC VOLTAGE | 50 Hz/ 1 kHz 10 mV to 30 mV 30 mV to 300 V 300 V to 1000 V |
1.16 to 0.42 0.42 to 0.07 0.07 to 0.08 |
Using Fluke 9100 by Direct Method |
| 4. | AC CURRENT | 50 Hz/ 1 kHz 100 µA to 300 µA 300 µA to 300 mA 300 mA to 10 A 10 A to 850 A |
0.43 to 0.20 0.20 to 0.11 0.11 to 0.08 0.08 to 1.1 |
Using Fluke 9100 by Direct Method |
| 5. | FREQUENCY | 10 Hz to 1 kHz | 0.006 | Using Fluke 9100 by Direct Method |
| 6. | RESISTANCE (2 WIRE) |
1 Ω to 1 MΩ 1 MΩ to 40 MΩ 40 MΩ to 100 MΩ |
1.4 to 0.06 0.06 to 0.20 0.20 to 0.35 |
Using Fluke 9100 by Direct Method |
| AT LABORATORY MEASURE | ||||
| 7. | DC VOLTAGE | 1 mV to 100 mV 100 mV to 10 V 10 V to 1000 V |
0.4 to 0.01 0.01 to 0.005 0.005 to 0.007 |
Using 61/2 DMM 8846 A Fluke by Comp. / Direct Method |
| 8. | DC CURRENT | 10 µA to 10A | 0.4 to 0.17 | Using 61/2 DMM 8846 A Fluke by Comp. / Direct Method |
| 9. | AC VOLTAGE | 50 Hz 10 mV to 100 mV 100 mV to 10 V 10 V to 1000 V |
0.6 to 0.05 0.05 to 0.14 0.14 0.2 |
Using 61/2 DMM 8846 A Fluke by Comp. / Direct Method |
| 10. | AC CURRENT | 50 Hz 100 μA to 400 mA 400 mA to 10 A |
1.5 to 0.35 0.35 to 0.3 |
Using 61/2 DMM 8846 A Fluke by Comp. / Direct Method |
| 11. | FREQUENCY | 45 Hz to 100 Hz 100 Hz to 1000 Hz |
0.02 to 0.01 0.01 to 0.006 |
Using 61/2 DMM 8846 A Fluke by Comp. / Direct Method |
| 12. | RESISTANCE (2 WIRE) |
1 Ω to 10 MΩ 10 MΩ to 100 MΩ |
0.36 to 0.05 0.05 to 0.95 |
Using 61/2 DMM 8846 A Fluke by Comp. / Direct Method |
| 13. | INDUCTANCE | 1 kHz 1 mH to 100 mH |
2.2 | Using LCR Meter By Direct Method |
| 14. | CAPACITANCE | 1 kHz 1 nF to 10μF |
2.5 | Using LCR Meter By Direct Method |
| 15. | AC RESISTANCE | 1 kHz 1 Ω to 1M Ω |
1.5 | Using LCR Meter By Direct Method |
| 16. | TIMER/HOUR METER | 20 to 9000 sec | 1.4 to 8.0 sec | Using digital time interval meter/Comparison method |
| AT SITE MEASURE | ||||
| 17. | DC VOLTAGE | 1 mV to 100 V 100 V to 1000 V |
0.5 to 0.01 0.01 to 0.014 |
Using 61/2 DMM 8845 A Fluke by Comp. / Direct Method |
| 18. | DC CURRENT | 100 µA to 400 mA 400 mA to 10 A |
0.9 to 0.12 0.12 5 to 0.2 |
Using 61/2 DMM 8845 A Fluke by Comp. / Direct Method |
| 19. | AC VOLTAGE | 50 Hz 10 mV to 300 V 300 V to 750 V |
0.18 to 0.23 0.23 to 0.15 |
Using 61/2 DMM 8846 A Fluke by Comp. / Direct Method |
| 20. | AC CURRENT | 50 Hz 10 mA to 300 mA 10 mA to 10 A |
0.25 to 0.4 0.4 to 0.5 |
Using 61/2 DMM 8846 A Fluke by Comp. / Direct Method |
| 21. | FREQUENCY | 45 Hz to 1000 Hz | 0.02 | Using 61/2 DMM 8846 A Fluke by Comp. / Direct Method |
| 22. | RESISTANCE (2 WIRE) |
1 Ω to 10 Ω 10 Ω to 10 MΩ 10 MΩ to 100 MΩ |
0.5 to 0.08 0.08 to 0.05 0.05 to 0.95 |
Using 61/2 DMM 8846 A Fluke by Comp. / Direct Method |
| 23. | TIMER/HOUR METER | 20 to 9000 sec | 1.4 to 8.0 sec | Using digital time interval meter/Comparison method |
| AT SITE SOURCE | ||||
| 24. | DC VOLTAGE | 100 mV to 100 V 100 V to 1000 V |
0.06 to 0.08 0.08 to 0.12 |
Using MF Calibrator Fluke/ 5080A by Direct Method |
| 25. | DC CURRENT | 100 µA to 300 mA 300 mA to 10 A |
0.6 to 0.9 0.9 to 0.3 |
Using MF Calibrator Fluke/5080A with 50 Turn Current Coils by Direct method |
| 26. | AC VOLTAGE | 50 Hz 100 mV to 300 mV 300 mV to 1000 V |
0.93 to 35 0.35 to 0.18 |
Using MF Calibrator Fluke/ 5080A by Direct Method |
| 27. | AC CURRENT | 50 Hz 300 µA to 10A |
0.6 to 0.4 | Using MF Calibrator Fluke / 5080A with 50 Turn Current Coils by Direct method |
| 28. | FREQUENCY | 45 Hz to 1000 Hz | 0.02 to 0.06 | Using MF Calibrator Fluke/ 5080A By Direct Method |
| 29. | RESISTANCE (2 WIRE) |
1 Ω to 10 Ω 10 Ω to 10 MΩ 10 MΩ to 100 MΩ |
4.2 to 0.7 0.7 to 0.1 0.12 to 0.6 |
Using MF Calibrator Fluke/ 5080A by Direct Method |
| 30. | TEMPERATURE SIMULATION (Temperature Controller /indicator / Recorder/ Process Meter/Temperature Data Logger) |
|||
| RTD Type Using Fluke 9100 | -200 to 800 °C | 0.2 to 0.5 | Using | |
| “J” Type T/C Calibrator | -200 to 760 °C | 0.3 | MF | |
| “K” Type T/C | -200 to 1300°C | 0.4 | ||
| “T” Type T/C | -200 to 400 °C | 0.3 | ||
| “N” Type T/C | -200 to 1300 °C | 0.4 | ||
| “S” Type T/C | -0 to 1300 °C | 0.9 | ||
| “R” Type T/C | 0 to 1700 °C | 0.9 | ||
| 31. | AT SITE: TEMPERATURE SIMULATION (Temperature Controller /indicator / Recorder/ Process Meter/Temperature Data Logger) |
|||
| RTD Type | -200 to 800 °C | 0.4 | Using Fluke 725 | |
| “J” Type T/C Calibrator | -200 to 760 °C | 1.2 | MF | |
| “K” Type T/C | -200 to 1300°C | 1.3 | ||
| “T” Type T/C | -200 to 400 °C | 1.2 | ||
| “N” Type T/C | -200 to 1300 °C | 1.4 | ||
| “S” Type T/C | -0 to 1300 °C | 1.9 | ||
| “R” Type T/C | 0 to 1700 °C | 1.9 | ||
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