In electrical realm, multiple types of instruments are used based on the studies, use cases, and the requirements. The classification is based on the electrical quantities of parts, the nature of the operations, its purposes, its electrical supply, occurring effects, uses and many other terms.
Electrical calibration involves the process of verifying the performance of or adjusting any instrument that measures or tests the above parameters. It involves the use of precise devices that assess the performance of key properties for other devices.
Master Instruments
Instruments We Calibrate
- MULTIMETER
- CLIP ON METER / CLAMP METER
- INSULATTON TESTER (MEGGAR ) / EARTH TESTER
- HV BREAK DOWN TESTER / OIL TEST KIT / HOLIDAY DETECTOR / SPARK TESTER
- DECADE RESISTANCE BOX
- PANEL METER VOLT/AMP
- PANEL POWER / POWER FACTOR METER
- mV/m AMP./ Ohms./ TH / RTD CALIBRATOR
- FREQUENCY METER / COUNTER
- TIMER / STOP WATCH
- TIME INTERVAL METER
- CIRCUIT BRAKER TIMMING KIT
- TACHOMETER / RPM METER
- SHUNT / CT
- REGULATED POWER SUPPLY (Amp & Volt Ranges)
- TRANSFORMER RATIO TESTER
- OSCILLOSCOPE (CRO) – Voltage, Current & Frequency
- POWER CLAMP METERS
- POWER ANALYSER / LOAD ANALYSER
- WELDING RECTIFIER / GENERATOR etc. (1000A AC, 500A DC)
- MOTOR CHECKER (EMC Tester)
- CAPACITANCE METER
- LCR METER
- CURRENT INJECTION (RELAY TEST) KIT
- LOW RESISTANCE / WINDING RESISTANCE METER / MICROHM METER
- HIGH RESISTANCE METER ( MILLION Mega Ohm Meter )
- ENERGY METER
- MULTIFUNCTION METERS
- ELCB TESTER
- CURRENT INJECTION KIT
- OMICRON KIT
- PROCESS INDICATORS / CONTROLLERS with Voltage / Amp. / Resistance Input
- PROCESS CALIBRATOR CONTACT RESISTANCE METER ( CRM KIT )
Our Calibration Scope
| S.NO | Discipline / Group | Measurand or Reference Material/Type of instrument or material to be calibrated or measured / Quantity Measured / Instrument | Measurement range and additional parameters where applicable(Range and Frequency) | Calibration and Measurement Capability(CMC)(±) | Calibration or Measurement Method or procedure) |
| 1. | ELECTRO TECHNICAL ALTERNATING CURRENT (< 1 GHZ) (MEASURE) | AC ACTIVE ENERGY 1 PHASE – 2 WIRE / 3 PHASE – 4 WIRE( 50 Hz,110 V TO 240 V, 1 A TO 5 A(55 Wh-3.6 kWh),0.5 PF TO UPF | 55 Wh to 3600 Wh | 0.63% to 0.28% | Using Energy meter by comparison method. |
| AC ACTIVE POWER 1 PHASE – 2 WIRE / 3 PHASE – 4 WIRE( 50 Hz, 110 V TO 240 V, 1 A TO 5 A (55W – 3.6 kW,0.5 PF TO UPF) | 55 W to 3600 W | 0.33 % to 0.34 % | USING ENERGY METER BY COMPARISON METHOD | ||
| AC CURRENT RATIO | 1 to 1000 (50 Hz) | 4.74 % to 0.8 % | USING 6 1/2 DIGITAL MULTIMETER & CT BY DIRECT / COMPARISON METHOD | ||
| AC CURRENT | 10 A to 1000 A | 0.2 % to 0.55 % | USING 6 1/2 DIGITAL MULTIMETER & CT BY DIRECT / COMPARISON METHOD | ||
| 100 µA to 100 mA (50Hz) | 0.5 % to 0.2 % | ||||
| 100 mA to 10 A(50 Hz) | 0.2 % to 0.3 % | ||||
| 2. | ELECTRO TECHNICAL ALTERNATING CURRENT (< 1 GHZ) (MEASURE) | AC VOLTAGE | 1 kV to 50 kV (50Hz) | 2.33 % | USING HIGH VOLTAGE DIVIDER BY DIRECT |
| 1 V to 1000 V (50Hz) | 4.8 % to 0.12 % | USING 6 1/2 MULTIMETER BY DIRECT / COMPARISON METHOD | |||
| 1 V to 1000 V (50Hz) | 0.12% | ||||
| AC VOLTAGE RATIO | 1 ( 50 Hz) to 2000 (50Hz) | 1 ( 50 Hz) to 2000 (50Hz) | USING 6 1/2 DIGITAL MULTIMETER & STANDARD RATIO TRANSFORMER BY DIRECT / COMPARISON METHOD | ||
| 3. | ELECTRO TECHNICAL ALTERNATING CURRENT (< 1 GHZ) (SOURCE) | CAPACITOR (1 kHz) | 1 nF to 10 µF | 2.31 % to 2.38 % | USING CAPACITANCE BOX BY DIRECT METHOD |
| ELECTRO TECHNICAL DIRECT CURRENT (MEASURE) | CAPACITOR | 1 nF to 1 mF | 5.5 % to 2.2 % | USING 6 1/2 DIGITAL MULTIMETER BY DIRECT / COMPARISON METHOD | |
| 4. | ELECTRO TECHNICAL DIRECT CURRENT(MEASURE) | INDUCTOR (1 kHz) | 100 µH to 10 H | 2.4 % to 2.32 % | USING INDUCTOR BOX BY DIRECT METHOD |
| 5. | ELECTRO TECHNICAL DIRECT CURRENT (MEASURE) | DC CURRENT | 1 A to 10 A | 0.1 % to 0.2 % | USING 6 1/2 DIGITAL MULTIMETER BY DIRECT / COMPARISON METHOD |
| 10 µA to 100 µA | 0.36 % to 0.1 % | ||||
| 10 A to 100 A | 1.0 % to 0.69 % | ||||
| 100 µA to 1 A | 0.1 % | ||||
| 100 A to 1000 A | 0.69 % to 0.84 % | ||||
| 6. | ELECTRO TECHNICAL DIRECT CURRENT (MEASURE) | DC VOLTAGE | 1 mV to 100 mV | 1.84 % to 1.79 % | USING 6 1/2 DIGITAL MULTIMETER BY DIRECT / COMPARISON METHOD |
| 100 mV to 1000 V | |||||
| 1kV – 15kV to 15kV – 70 kV | |||||
| 7. | ELECTRO TECHNICAL- DIRECT CURRENT (MEASURE) | LOW RESISTANCE (4 WIRE) | 0.1 mOhm to 20 Ohm | 0.45 % to 0.1 % | USING 6 1/2 DIGITAL MULTIMETER, DC SHUNT(VI METHOD) & LOW RESISTANCE BOX BY DIRECT / COMPARISON METHOD |
| RESISTANCE (2 WIRE) | 1 ohm to 100 ohm | 0.7 % to 0.02 % | USING 6 1/2 DIGITAL MULTIMETER BY DIRECT / COMPARISON METHOD | ||
| 10 M ohm to 100 M ohm | 10 M ohm to 100 M ohm | ||||
| 100 M ohm to 1 G ohm | 1.0 % to 3.0 % | ||||
| 100 ohm to 10 M ohm | 0.02 % to 0.05 % | ||||
| RESISTANCE (FOR INSULATION TESTER) | 1 M ohm to 1 T ohm | 6.22 % to 1.49 % | USING RESISTANCE BOX (DISCRETE VALUES) BY DIRECT METHOD | ||
| 8. | ELECTRO TECHNICAL TEMPERATURE SIMULATION (MEASURE) | (TEMPERATURE INDICATOR / CONTROLLER / RECORDER / CALIBRATOR / SCANNER / LOGGER B-TYPE THERMOCOUPLE | 300 °C to 1600 °C | 0.8 °C | USING 6 1/2 DIGITAL MULTIMETER BY DIRECT / COMPARISON METHOD |
| E-TYPE THERMOCOUPLE | (-200) °C to 1000 °C | 0.2 °C | |||
| J-TYPE THERMOCOUPLE | (-) 100 °C to 900 °C | 0.2 °C | |||
| K-TYPE THERMOCOUPLE | (-100) °C to 1300 °C | 0.2 °C | |||
| N-TYPE THERMOCOUPLE | (-) 200 °C to 1300 °C | 0.2 °C | |||
| RTD | (-) 100 °C to 600 °C | 0.4 °C | |||
| R-TYPE THERMOCOUPLE | 0 °C to 1600 °C | 1.1 °C | |||
| S-TYPE THERMOCOUPLE | 0 °C to 1600 °C | 1.1 °C | |||
| T-TYPE THERMOCOUPLE | (-) 200 °C to 400 °C | 0.8 °C | |||
| 9. | ELECTRO TECHNICAL- TIME & FREQUENCY (MEASURE) | FREQUENCY | 10 Hz to 1 MHz | 0.07 % to 0.02 % | USING 6 1/2 DIGITAL MULTIMETER BY DIRECT / COMPARISON METHOD |
| 10. | ELECTROTECHNICAL- TIME & FREQUENCY (MEASURE) | TIME INTERVAL METER / STOP WATCH | 1 ms to 2 hr | 0.13 ms to 4.2 s | USING TIME INTERVAL METER BY DIRECT / COMPARISON METHOD |