The Measurement of temperature, which is an important process variable is becoming increasingly important in many fields of activity. For practical day-to-day thermometry a more readily realizable scale of temperature is the International Temperature Scale ITS-90 covering the temperature range – 270.15° C to 1084.63° C. It is defined by temperature values assigned to a number of fixed temperature phenomena, i.e. the triple points, boiling points and freezing points of certain materials. Resistance thermometers and thermocouples constructed in a specified manner are used to interpolate between fixed points. ITS-90 relates closely enough to the fundamental thermodynamic temperature scale for all practical purposes (See Table I) At the National Physical Laboratory, the temperature sensors are calibrated at fixed points and other values for different Temperature are obtained by interpolation .
At the Institute constant temperature furnaces or baths are used for calibration. The method adopted is by comparing the mV of the under test with the Standard Thermocouple in the cases of thermocouples or comparison of resistance of the under test Platinum Resistance Thermometer with the Standard PRT. In both the cases the deviation can be worked out Table II gives in detail the various baths/furnaces used Table III lists the primary standards for temperature measurement at IDEMI laboratory.Back to Up
The Electrical Measuring Instrument Calibration Laboratory is Accredited Laboratory by NABL (National Accreditation Board of Laboratories, New DelhiAccreditation No. (C 085 ).This Laboratory is equipped with State-of-Art Standard Measuring Instruments having an accuracy from 0.001% to 2 % and covering wide variety of Electrical Measuring Parameters.
|1.||Budenberg Hydraulic Dead Weight Tester Model 380H||0 - 1200 kg/cm2||± 0.05% of the pressure being measured|
|2.||Budenberg Hydraulic Dead Weight Teste||100 – 3500 kg/cm2||± 0.05% of the pressure being measured|
|3.||Budenberg Air Dead Weight Tester Model 350A||1 to 1 kg/cm2||± 0.12% of the pressure being measured|
|4.||Budenberg Air Dead Weight Tester Model 452||0.1 to 7 kg/cm2||-|
DML Lab offers a wide range of calibration services under NABL scope :
GIVE US A CALL to learn more about our full list of calibration services.COORDINATE MEASURING MACHINE
- The Pumps covered are horizontal centrifugal, (IS 6595) and monoset Pumps as per IS 9079 and Regenerative pumps for clear & cold water IS 8472.
- This facility is capable of Pump Testing as per IS 9079, IS 8472, IS 6595.
The Capacities of the pump for testing that we can test are as follows :Deliver size : 15 mm to 80 mm.