MPS Electrical Test Laboratory, Larsen & Toubro Limited, Mysore Campus, KIADB Industrial Area, Hebbal Hootagalli, Mysore, Karnataka

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1 Last Amended on - Page 1 of 6 SOURCE 1. DC VOLTAGE $ 1mV to 10 mv 0.13 % to 0.014% Using Multifunction Calibrator 10 mv to 1 V 0.014% to % By Direct Method 1 v to 10 V % to % 10 V to 100 V % to % 100 V to 1000 V % 2. AC VOLTAGE $ 45 Hz to 10 khz 5 mv to 100 mv 0.16% to 0.027% Using Multifunction Calibrator 100 mv to 1 V 0.027% to 0.025% By Direct Method 1 V to 10 V 0.025% 10 V to 100 V 0.025% to 0.031% 45 Hz to 1 khz 100 V to 1000 V 0.025% to 0.036% 10 khz to 100 khz 10 mv to 300 mv 0.54% to 0.11% 300 mv to 3 V 0.11% to 0.086% 3 V to 100 V 0.086% to 0.29% 3. DC CURRENT $ 10 µa to 100 µa 0.25 % to 0.040% Using Multifunction Calibrator 100 µa to 1 ma % to 0.017% By Direct Method 1 ma to 100 ma 0.017% to 0.015% 100 ma to 1 A %to 0.028% 1 A to 10 A 0.028% to 0.064% 10 A to 20 A 0.064% to 0.35% 20 A to 900 A 1.42% to 0.66% With Current Coil

2 Last Amended on - Page 2 of 6 4. AC CURRENT $ 45 Hz to 1 khz Using Multifunction Calibrator 30 µa to 100 µa 0.56% to 0.26% By Direct Method 100 µa to 3 ma 0.26% to 0.12% 3 ma to 100 ma 0.12 % to 0.078% 100 ma t0 1 A 0.078% to 0.074% 1 A to 10 A 0.074% to 0.14% 10 A to 20 A 014 % to 0.35 % 1 khz to 5 khz 10 ma to 100 ma 0.12% to 0.18% 100 ma to 1A 0.18% to 0.81% 1 A to 10 A 0.81% to 3.50% 50 Hz With Current Coil 20 A to 750 A 0.88% to 0.80% 5. RESISTANCE $ 1Ω to 10 Ω 0.13% to 0.016% Using Multifunction Calibrator 10 Ω to 100 Ω 0.016% to % By Direct Method 100 Ω to 100 k Ω % to % 100 k Ω to 1 M Ω % to % 1 M Ω to 10 M Ω % to 0.016% 10 M Ω to 100 M Ω 0.016% to 0.062% 100 M Ω to 1 G Ω 0.062% to 1.79% 6. CAPACITANCE $ 1 khz Using Multifunction Calibrator 350 pf to 10 nf 3.88% to 0.40% By Direct Method 10 nf to 300 nf 0.40% 100 Hz 1 µf to 100 µf 0.41% to 0.67%

3 Last Amended on - Page 3 of 6 7. FREQUENCY $ 1 Hz to 100 khz % to % Using Multifunction Calibrator 100 khz to 100 MHz % to % By Direct Method 100 MHz to 250 MHz % 8. OSCILLOSCOPE $ 5 mv to 33 V 2.60% to 0.29% Using Multifunction Calibrator DEFLECTION By Direct Method COEFFICIENT/ DC AMPLITUDE DEFLECTION 1 khz Using Multifunction Calibrator COEFFICIENT / 5 mv to 50 V 2.60% to 0.29% By Direct Method AC AMPLITUDE TIME MARKER 5 ns to 5 s % to 0.12% Using Multifunction Calibrator By Direct Method LEVELED DC to 250 MHz 4.89% Using Multifunction Calibrator SINE WAVE By Direct Method (Band Width) MEASURE 1. DC VOLTAGE $ 5 mv to 100 mv 0.086% to % Using Digital Multimeter 6½ 100mV to 10 V % to % By Direct Method 10 V to 1000 V % to % 2. AC VOLTAGE $ 10 Hz to 20 khz Using Fluke 8846 A 6½ DMM 5 mv to 100 mv 1.01% to 0.12% By Direct Method 100 mv to 30 V 0.12% to 0.19% 45 Hz to 1 khz 30 V to 1000 V 0.19% to 0.097%

4 Last Amended on - Page 4 of 6 50 Hz 35 V to 240 V % to % Using COM V to 320 V % to % 50 Hz Using Digital Multimeter 1 kv to 5 kv 1.31% to 0.32% by Direct Method 3. DC CURRENT $ 100 µa to 100 ma 0.088% to 0.064% Using Digital Multimeter 6½ 100 ma to 1 A 0.064% to 0.082% DMM by Direct Method 1 A to 10 A 0.082% to 0.20% 4. AC CURRENT $ 45 Hz to 1 khz Using 6½ DMM 100 µa to 1 ma 0.25% to 0.16% By Direct Method 1 ma to 1 A 0.16% to 0.17% 1 A to 10 A 0.18% to 0.28% 50 Hz 5 ma to 50 ma 0.035% to % Using COM ma to 120 A % to % 5. RESISTANCE $ 1Ω to 10 Ω 0.36% to 0.046% Using Fluke 6½ DMM 10 Ω to 100 Ω 0.046% to 0.016% By Direct Method 100 Ω to 100 k 0.016% to 0.013% 100 k Ω to 1 MΩ 0.013% 1 MΩ to 10 MΩ 0.013% to 0.047% 10 MΩ to 100 MΩ 0.047% to 0.94% 100 MΩ to 1 GΩ 0.94% to 2.32% 6. FREQUENCY $ 1 Hz to 10 Hz % to % Using 10 Hz to 100 Hz % to % Frequency Counter 100 Hz to 300 MHz % to % By Direct Method 300 MHz to 350 MHz % to %

5 Last Amended on - Page 5 of 6 60 V to 240 V Using DMM 45 Hz to 100 Hz By Direct Method 7. AC POWER $ 45 Hz to 65 Hz Using COM 3003 (Cos Ө = ± 0.25 to 1) 40 V to 320 V 0.027% to 0.013% Three & Single Calibration 1Φ ( Active) 10 ma to 120 A 0.2 W to 38.4 kw 0.6 W to kw 10 ma to 120 A Three & Single Calibration (Sin Ө = ± 0.25 to 1) 40 V to 320 V 0.027% to 0.013% Using COM Φ ( Active) 10 ma to 120 A Three & Single Calibration 0.2 VAr to 38.4 kvar 0.6 VAr to kVAr 10 ma to 120 A Three & Single Calibration 8. AC ENERGY $ 45 Hz to 65 Hz Using COM 3003 (Cos Ө = ± 0.25 to 1) 40 V to 320 V 0.027% to 0.013% Three & Single Calibration 1Φ ( Active) 10 ma to 120 A 0.2 Wh to 38.4 kwh 0.6 Wh to kwh 10 ma to 120 A Three & Single Calibration (Sin Ө = ± 0.25 to 1) 40 V to 320 V 0.027% to 0.013% Using COM Φ ( Active) 10 ma to 120 A Three & Single Calibration 0.2 VArh to 38.4 kvar

6 Last Amended on - Page 6 of VArh to 115.2kVAr 10 ma to 120 A Three & Single Calibration 9. IMMUNITY/IMPULSE GENERATORS $ Voltage ±125 V to± 500V 3.30% to 2.04 % Using Tektronixs / TDS 3054 B Amplitude ±500 V to ±12 kv 2.04 % to 3.56 % DPO, Tektronix/P5100/ P6015A HV Probes / KW 50 / Pulse Rise Time 5 ns to 75 ns 3.19 % to 2.06 % KW1000 EFT Attenuators by Direct Method Pulse Width 50 ns 2.34 % Front Time 1.2 µs 2.16% Time to Half Value 50 µs 2.79% Burst Duration 0.8 ms to 15 ms 2.43% to 2.38% Burst Period 300 ms 2.33% Repetition Frequency/Rate 40 Hz to 400 Hz 2.04 % 5 khz to 100 khz 2.32 % to 2.38% Oscillation frequency 100 khz to 1 MHz 2.04 % * Measurement Capability is expressed as an uncertainty ( ) at a confidence probability of 95% $ Only in Permanent Laboratory