Electrotechnical Metrology
Introduction
Electrical measuring instruments have applications in all kinds of industries, from food and pharma to automotive and manufacturing. Hence, the calibration of these electrical instruments plays a significant role in ensuring safety and quality in these industries. It is also mandated by regulation for certain industries to have their instruments and devices calibrated at periodic intervals. Calibration ensures that the measurement values given by these devices are true to the value and hence ensure smooth operations. Calibration also guarantees the traceability of the measurements.
Our laboratory is climate controlled, with the temperature maintained between 252oC and 75% and the humidity between 45% and 75%. Our electro-technical calibration lab is equipped with state-of-the-art test benches for the lab standards. Master equipment with traceability to national or international standards is available for the calibration of instruments.
Devices We calibrate
- AC/DC Reference Standards
- Multifunction calibrators (with options)
- Thermocouple Calibrators
- Process Calibrators
- Digital Multimeters (up to 8 1/2 digit)
- Data Loggers
- All type of Panel Meters
- Clamp Meters
- Resistance Standards
- Decade Resistance Boxes
- High current Shunts
- HV Mega Ohm Boxes
- Micro Ohm Meters
- Meggers Insulation testers
- Transformer Winding Resistance Meters
- Kelvin Bridges, Primary & Secondary Injection Kits
- Relay test kits
- Transformer Oil Break Down Testers
- HV Break Down Testers
- Power/ Energy Calibrators/ Sources
- Power Analyzers (1 & 3- Phase)
- Energy meters
- Trivector Meters
- Watt meters
- Power Factor Meters
- Frequency Meters
- Current Transformers (up to 3200Amp)
- Potential Transformers (up to 33kV)
- Frequency Counters
- Signal Generators (Frequency/ Amplitude up to 1GHz)
- Oscilloscope
- Timers/ Stop watches
- Inductance Boxes, Capacitance Boxes, AC Resistance Boxes,
- LCR Meters
- Gauss Meters
- Magnetic field transformer
| S.N. | Source / Measure | Instruments Name | Parameter to be calibrated | Range | Standard Used |
| 1 | Source | Multifunction / Multiproduct Calibrator (Fluke – 9100, 5080, 5500, 5502, 5520, 5522, 5530) Transmile / Zeal Process Calibrator Power Supply Voltage Source Current Source High Current Source | 1. AC Voltage 2. AC Current 3. DC Voltage 4. DC Current 5. Frequency 6. Resistance 7. Capacitance 8. Tempertaure Simulation (RTD & Thermocouple) 9. Scope 10. DC Power 11. AC Power 12. Power Factor / Phase Angle | 1. 10 µV to 1000 V @ 50 Hz to 10 kHz 2. 10 µA to 120 A @50 Hz to 10 kHz 3. 10 µV to 1000 V 4. 1 µA to 100 A 5. 100 mHz to 2 MHz 6. 1mΩ to 1 GΩ 7. 1 pF to 100 μF @ 1 kHz 8. Thermocouple (All Types): -250 ℃ to 2300 ℃ RTD (All Types): -200 ℃ to 800 ℃ 9. Time Marker (Oscilloscope): 10 nsec to 5 sec DC Amplitude (Oscilloscope): 1.25 mV to 100 V AC Amplitude (Oscilloscope): 5 mV to 100 V Bandwidth ((Oscilloscope): 50 kHz to 1000 MHz 10. 1 mW to 20 kW 11. 0.3 mW to 20 kW (1000 V / 20 A) 12. 0.01 to UPF @ 50 Hz (1 phase – (10V to 650V), (0.01 A to 20 A)) | 1. Fluke 8508A (8.5 DMM) 2. Fluke 8846A (6.5 DMM) 3. AC Measurement Standard (Fluke 5790B) 4. Keysight LCR meter 5. Ykogawa Precision Power Analyzer 6. Zera (3 Ph Reference Standard 7. Keysight Universal Frequency Counter 8. Keysight USB R F Power Sensor |
| 2 | Source | H igh Voltage Source / Oil BDV Tester | AC & DC High Voltage | 1 k V to 100 kv @ 50 Hz 1 kV to 100 kV | Moonlight & R E – Capacitive Voltage Divider |
| 3 | Source | Frequency Generator / Signal Generator | 1. Frequency 2. RF Power 3. Time Period | 1.100 mHz to 6 GHz 2. (100 kHz to 6 GHz): -42 dBm (5 mVpp) to 21 dBm (7.09 Vpp) 3. 1 nsec to 1 sec | 1. Keysight Universal Frequency Counter 2. Keysight USB R F Power Sensor |
| 4 | Source | Resistance Box / Standard Resitor Capacitance Box / Standard Capacitor Inductance Box / Stanadar Inductor | 1. Resitance (DC) 2. Resistance (@1 kHz) 3. Capacitance (@1 kHz) 4. Inductance (@1 kHz) | 1. 1mΩ to 20 GΩ 2. 1 Ω to 100 kΩ 3. 1 pF to 100 μF 4. 100 µH to 10 H | 1. Fluke 8508A (8.5 DMM) 2. Fluke 8846A (6.5 DMM) 3. Keysight LCR meter 4. Fluke 5522A |
| 5a | Measure | Precision Multimeter (8.5 / 7.5 / 6.5) Digital Multimeter (upto 5.5 digit) Clamp Meter | 1. AC Voltage 2. AC Current 2b. A C High Current 3. DC Voltage 4. DC Current 5. Frequency 6. Resistance 7. Capacitance 8. Tempertaure Simulation (RTD ) | 1. 10 µV to 1000 V @ 50 Hz to 10 kHz 2a. 10 µA to 120 A @50 Hz to 10 kHz 2b. 10 µA to 1 kA / 2 kA / 3 kA / 6 kA @ 50 Hz 3. 10 µV to 1000 V 4. 1 µA to 100 A / 2 kA 5. 100 mHz to 10 MHz 6. 0.1 mΩ to 20 GΩ 7. 1 pF to 100 μF @ 1 kHz 8. RTD (All Types): -200 ℃ to 800 ℃ | 1. MFC Fluke (5730 / 5522A) 2. Transconductance Amplifier (Fluke 52120) 3. DC Reference Standard (Fluke 732 C) 4. Reference Divider (Fluke 752A) 5. DRB (8400) |
| 5b | Voltmeter / Ampere meter / Frequency meter / Power Factor meter / Phase Angle meter / VFD meter / Multifunction meter | 1. MFC Fluke (5080 ) | |||
| 6 | Measure | milli ohm meter / megaohm meter / micro ohm meter / Earth Tester / Insulation Tester / CRM Meter / TWRM meter / | Resistance | 0.1 mΩ to 500 GΩ (upto 5 kV) | 1. MFC Fluke ( 5522A) 2. DRB (8400) |
| 7 | Measure | Power Meter / Power Analyzer / Energy Meter (Class: 0.2, 0.5, 1.0) / Reference Energy Logger (Class: 0.02, 0.05 and coarser) | 1. DC Power 2. AC Power/Energy 3. Power Factor: | 1. 1 mW to 20 kW 2. 0.3 mW/mWh to 172.8 kW/kWh 3. 0.01 to UPF | 1. Zera 3 Ph Ref Std (COM 3003 / COM 3000) 2. Zera AC Voltage / Current Source (MT551) |
| 8 | Measure | LCR Meter / Smart Tweezer | 1. Resistance (@1 kHz) 2. Capacitance (@1 kHz) 3. Inductance (@1 kHz) | 1. 1 Ω to 100 kΩ 2. 1 pF to 100 μF 3. 100 µH to 10 H | 1. Keysight LCR meter 2. DRB 3. Standard Capacitance 4.Standard Inductance Box |
| 9 | Measure | Temperature Indicator / Controller / Data Logger / Data Acquisition Switch Unit | Tempertaure Simulation (RTD & Thermocouple) | Thermocouple (All Types): -250 ℃ to 2300 ℃ RTD (All Types): -200 ℃ to 800 ℃ | 1. MFC Fluke ( 5522A) |
| 10 | Measure | H igh Voltage Divider / H V Probe | AC & DC High Voltage | 1 k V to 100 kv @ 50 Hz 1 kV to 100 kV | Moonlight & R E – Capacitive Voltage Divider |
| 11 | Measure | Current Transformer / Bridge | Ratio Error & Phase Error | 1A to 3200A (Primary) 1A to 5A (Secondary) Turn Ratio: 1 to 600 Turns | 1. Eltel / Moonlight CT 2. Eltel / AITTS (Bridge) |
| 12 | Measure | Potential Transformer / Bridge | Ratio Error & Phase Error | 1.1 kV to 132 kV (Primary) 110 V to 110 /√3 V (Secondary) Turn Ratio: 1 to 600 Turns | 1. Moonlight PT 2. Eltel / AITTS (Bridge) |
| 13 | Measure | Tesla Meter/Gauss Meter / AC Magnet / DC Magnet | 1. AC Magnetic Field @ 50 Hz 2. DC Magnetic Field | 1. 0.1 Gauss to 2000 Gauss 2. 100 Gauss to 10000 Gauss | 1. Tesla meter 2. EMF Tester 3. D C Reference Magnet 4. AC Electro Magnet |
| 14 | Measure | Oscilloscope | 1. Time Marker 2. DC Amplitude 3. AC Amplitude (1 kHz to 10 kHz) 4. Bandwidth | 1. 10 nsec to 5 sec 2. 1.25 mV to 100 V 3. 5 mV to 100 V 4. 50 kHz to 1000 MHz | 1. MFC Fluke ( 5522A) |
| 15 | Measure | Time Calibrator / Timer / Stop watch / Hour meter | Time Interval | 10 secto 9999 sec | Zeal Time Interval Meter |
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