Calibration
All eti Conformity Services field test instruments are regularly calibrated to primary and secondary standards traceable to the National Institute of Standards and Technology (see our traceability chart).

Our labs are among the few fully-equipped non-utility power industry calibration and metrology labs.

• High Voltage, AC and DC up to 100,000 volts

• High Current up to 10,000 amps AC, 1,500 amps DC

• Instrument and meter calibration, analog and digital: amps, volts, ohms, to 100 parts per million, phase angle

• Time and Frequency: picosecond to megahertz

• Temperature: Direct, simulated and low infra-red

• Pressure: Hydraulic and gaseous to 10,000 psi

• Dimensional: Distance and weight

EMF / RFI
Interference from electromagnetic fields (EMF) has become more prevalent in recent years with the increasing use of electronic equipment.  EMF causes low-frequency errors in medical equipment, computers, networks and electron beam devices.

Radio Frequency Interference (RFI) creates very high frequency (VHF) and ultra high frequency (UHF) fields. These fields react very differently than the low frequency magnetic fields produced by electrical equipment and power circuits. There are many consultants with the ability to mitigate these fields, however, application of typical high-frequency solutions to low frequency fields will yield unreliable results.

eti Conformity Services' specially-trained engineers and technicians use sensitive equipment to measure the intensity of magnetic fields. In some cases, correcting common wiring problems can restore proper equipment operation and reduce stray currents. In other cases, it may be necessary to install a multi-layered shield to protect the area where sensitive equipment must be located.

The ideal time to consider the effects of power frequency magnetic fields on sensitive electronic equipment is during the building design or remodel stage. A short consultation with an experienced EMF engineer before or during remodeling can be the quickest and most cost-effective method to avoid interference problems.