Introduction
Electrical Metrology Division of National Metrology Institute of Pakistan (NMIP) is mandated to disseminate and maintain National Standards for DC Voltage & Resistance, Current, Inductance, Capacitance, and Power. In addition to this, the Laboratory Quality Management System (LQMS) is being practiced to remain in accordance with and fulfill the requirements of ISO 17025.
Functions of EMD
Realizing the primary standards and maintaining the national/reference standards in the field of electrical measurements.
Maintaining the traceability of electrical standards through ILCs and bilateral arrangements with NMIs of other countries.
Improving and developing measurement techniques for test/calibration in the field of electrical metrology.
Providing test and calibration services to public/private industrial sectors, especially to defense organizations of the country.
Carrying out testing & standardization of electrical home appliances like PVC cables, electronics blasts, and vinyl tiles.
Providing training, consultancy, and advisory services to different public and private departments/organizations in the field of electrical metrology.
Conducting specific R & D work to develop and improve the in-use calibration techniques and supporting instrumentation in the field of electrical metrology.
Realizing and establishing primary standards of voltage through Josephson Voltage Standard (JVS) system for 1 Volt and 10 Volt.
Future Goals / Targets / Plans
Establishing facilities for on-site calibration to customers in the field of electrical metrology.
Enhancing electrical measurement capabilities and facilities regarding range & accuracy for:
AC/DC Voltage: Up to 50 kV
AC/DC Current: Up to 100 A
Improving existing measurement techniques including uncertainty budget in the field of electrical measurement.
Visiting local industries to understand their problems related to trade and offering expertise.
Providing in-house training for metrologists on calibration techniques under BMR Project provisions.
Enhancing the range and accuracy of parameters in the accredited scope related to Electrical Metrology.
Participating in national/international ILC and key comparison in electrical parameters organized by concerned metrology bodies and NMIs.
Training metrologists on improved calibration techniques from NMIs in the Asia Pacific Region and developed countries.
Collaborating with other NMIs and metrology institutes for expert visits and the latest calibration techniques.
PNAC Accredited Calibration Facilities
| Parameter |
Range |
Uncertainty |
| DC Voltage |
0 - 1200 V |
±3 x 10-4 |
| AC Voltage |
0-1050 Volts (10 HZ-1.5 MHz) |
± 0.01 % |
| DC Current |
0-20 Amps, 20-1000 Amps (with Coils) |
± 0.14 % / ± 0.015% |
| AC Current |
0-20 Amps (10 Hz-30KHz), 20-1000 A (with Coils) |
± 0.05 % / ± 0.07 % |
| Resistance |
0 ?-100 K?, 100 k?-1M?, 1 M?-400M? |
± 1 PPM- -8PPM / ± 16PPM / ± 0.02% |
| Inductance |
1µH-100 H |
± 0.03 % |
| Power (DC / AC) |
1 mW-20 KW |
± 0.03 % (DC) |
