Services: Calibration
All calibrations are performed to the highest possible standard using our approved procedures, standard methods and uncertainties. User specific requirements may also be possible by contacting us.
Low Gauge and Absolute Gas Pressure
Range: 0 to 70bar gauge and absolute reference
Best Measurement Uncertainty ±30ppm (0.003%)
Calibration of;
- analogue and digital indicators
- barometers
- air data test sets
- vacuum gauges and indicators
- deadweight testers
Gauge, Differential and Absolute High Gas Pressure
Range: Gauge and Absolute 0.4 to 400 bar
Uncertainties: ±40 ppm to ±50 ppm (±0.004 to ±0.005%)
Calibration of;
- gauges
- transducers and transmitters
- indicators
- calibrators
- deadweight testers
Range: Differential Pressures to 276 bar Line Pressure
Uncertainties ±40 ppm+ 0.6 ppm SP + 0.05 mbar
Calibration of;
analogue and digital differential pressure transmitters
Gauge, Differential and Absolute Hydraulic Pressure
Range: Gauge and Absolute 2 bar to 3450 bar
Uncertainties: ±45 ppm to ± 70 ppm (±0.0045 to ±0.007%)
Calibration of;
- gauges
- transducers and transmitters
- indicators
- calibrators
- deadweight testers
Range: Differential Pressures to 1720 bar Line Pressure
Uncertainties ±55 ppm + 0.6 ppm SP + 0.2 mbar
Calibration of;
analogue and digital differential pressure transmitter.
Mass Calibration
Range: 0 to 26,000g
Uncertainties: 7 ppm + (0.16 to 3 mg)
Calibration of;
- Masses / weights
- Mass balances / weighing scales
Transfer Standards and Pressure Controllers
A comprehensive range of transfer standards and pressure controllers are operated in the laboratory for greater efficiency in less demanding calibrations. The transfer standards all utilise Quartz Pressure Sensitive Elements, an example as shown opposite. These have excellent characteristics of low hysteresis, good repeatability and stability.
Pressure Ranges:
From low absolute to 70 bar
Uncertainties better than ±50 ppm
Electrical Calibration
Measurement and generation of electrical quantities of DC volts, current and resistance.
Ranges:
DC volts to 100V
DC Current to 100mA
Resistance to 10 Mohm
Uncertainties to down to 16ppm
Calibration of;
- Ammeters, dc
- Bridges and similar instruments, resistance
- Current shunts
- Resistance boxes
- Resistors, dc
- Voltmeters, dc
- Process Calibrators
- Thermocouple calibrators and Simulators
- Resistance Thermometer Detector/Indicators (PRT/RTD)
- Loop Calibrators
Temperature Calibration
Measurement and generation of temperature
Ranges:
-10 to 125°C
Uncertainties to down to 0.08°C
Calibration of;
- Temperature Indicators
- Platinum Resistance Thermometers