Skip to main content

Calibration Facilities

ERTL (South) has comprehensive facilities for calibration of majority of the Test & Measuring equipment used by the industry. Facilities are available for the calibration of electrical parameters. The accuracy levels of the standards used are traceable to the National Physical Laboratory, New Delhi. The Laboratory is accredited by National Accreditation Board for Testing and Calibration Laboratories (NABL),

In addition to providing calibration services at our laboratory, on-site calibration services are also undertaken facilitating calibration of equipment at the customer’s premises.

Source/Measurement Capability

Parameter / Test Range / Accuracy/ Specifications

DC Voltage

1mV to 1000V ± 0.047 % to 0.0009 %, 1kV to 15kV

AC Voltage

40Hz to 20 kHz 10mV to 1000V ±0.064 % to 0.023 %,20kHz to 50 kHz 10mV to 100V ± 0.063 % to 0.074% 50Hz 1kV to 15kV

DC Current

10 µA to 20A ±0.075 % to 0.12%, 20A to 1000A ± 0.30%

AC Current

50 Hz to 1kHz 10mA to 1mA ± 0.17% to 0.024%, 1mA to 20A ±0.024% to 0.2%, 50Hz20A to 1000A ±0.35%

AF Power

50Hz, 1Φ, 120V/240V, 0.02 to 20A, up to 4.8kW 0.096 % to 0.12 %

RF Power

-30dB to 13dB 10 MHz to 18 GHz ± 0.17dB to 0.21dB

Power Factor

0.2 to UPF , 0.002PF

DC Resistance

1mW, 10 mWto 10GW±0.13%, 0.024% to 0.090%

Capacitance

 

1pF, 10pF to 1mF @ 1kHz 0.12%, 0.06% to 0.41%

1mF to 100mF @ 100 Hz, 0.41% to 0.70%

Inductance

100 mH, 1mH to 10 H @ 1kHz 0.29%, 0.12%

Frequency

1 Hz to 12.4 GHz 0.0001% to 0.00001%

Oscilloscope

 

Bandwidth: 500 MHz, DC & AC Volts 1 mV to 130 V

2 ns to 5s 0.35% to 0.02%

Modulation

AM 30 % to 90%, 4.6%

FM: 10 kHz to 90kHz, 3.61%

List of Major Facilities

Facility/Equipment Make and Model

AC/DC Standard Resistors

Vaiseshika, GR, Tinsley 5685 Series

High Resistance decade box

IET HRRS

RC Box

HP 16340A

Micro Ohm meter

AOiP OM21

Standard Capacitor

GR1409, GR1403

Precision decade capacitor

GR 1413

Precision LCR Meter

HP 4284A

Precision decade inductor

GR 1491 G

DC voltage reference standard

Datron 4910

Reference DMM

Fluke 8508A

 DMM

Datron 1271, Agilent 34401A

Multifunction Calibrator with Amplifier  

Fluke 5720 A/5725A

Multi product Calibrator

Fluke 5520A

Active Shunt

Ballantine 1625A

HV Probe

Schlumberger 70457E

Rubidium Frequency standard                           

R&S X SRM

Signal generator

Maroni 2031

Arbitrary Function Generator

Fluke 281

Universal Counter

Agilent 53132 A

RF millivolt  Meter with sensor

R&S URV5 NRV Z2

Modulation Meter

Marconi 2305

Major Products Tested

  • Resistance, Capacitance and Inductance standards
  • LCR meters
  • Analogue and Digital multi meters
  • DC/AC voltage sources
  • HV testers
  • Relay Test Kits
  • AC/DC Panel meters
  • AC/DC Clamp meters and current coils
  • Electrical safety analyzers
  • Micro Ohm Meters
  • High Resistance/ Insulation Meters
  • Curve Tracers
  • AF Digital Wattmeter, Power meter and Analysers
  • PF meters
  • Frequency Counters
  • Signal generator, Function generator and Pulse generators
  • Oscilloscopes
  • AM and FM Modulation meters
  • Stop watches