Calibration Electrical Multimeters and Process Calibrators Insulation Testers Residual Current Device Testers Earth Loop Impedance Testers Portable Appliance Testers Clamp Meters HiPot and Breakdown Testers AutoclaveCalibration Pressure Torque Tachometers Resources Calibration and Metrology links Electrical Standards Dental Informatives Dental Air - Air Quality Dental Air 2 - Untreated Air Dental Air 3 - Air Treatment Dental Air 4 - The cost Dental Air 6 - Other Considerations Handpice Couplings Maintenance Scheduling Identify all your equipment Practice Equipment Plan Equipment Inventory Parts A-dec Suction A-dec Light Handpiece Coupling Parts LED Bulbs Products AutoclavesDental Dental Units A-dec KaVo Ritter Sirona Stern Weber HighspeedHandpieces Imaging Camsight Explorer Digital Radiography - Phosphor Plate Systems Video Monitor X-Ray Lowspeed Motors Plant Room Equipment Durr Air Compressors Durr Suction Reverse Osmosis Ultrasonic Cleaners Water Quality Meter Services Services Schedule of fees Highspeed Handpiece Repairs The Team Contact Us Home

Calibrating Earth Loop Testers

According to the QLD Electrical Safety Act 2002 - Section 18 - (2)(b) : if a testing instrument can not be visually confirmed as being correctly functioning and safe — that the instrument is tested at least every 6 months to ensure it is in proper working order.

Loop Resistance measurement
Line Impedance Measurement
Line Voltage Measurement

To calibrate a Loop tester first the loop impedance of the supply must be known, then several known values of resistance must be inserted in the loop to increase the loop resistance so the tester can be calibrated at several points. The value displayed on the tester can then be compared to that of the known value of the resistor plus the loop resistance of the supply.

Ensure your equipment is in specification so that the loop impedance testing you do is conducted in accordance with AS/NZS 3000 "Electrical installations - Wiring Rules "

All measurements are traceable to national and international standards via a registered NATA laboratory or a mutually recognised international testing authority. (See NATA’s International Activities )

Calibration

◦	Electrical
◦	Multimeters and Process Calibrators
◦	Insulation Testers
◦	Residual Current Device Testers
◦	Earth Loop Impedance Testers
◦	Portable Appliance Testers
◦	Clamp Meters
◦	HiPot and Breakdown Testers
◦	AutoclaveCalibration
◦	Pressure
◦	Torque
◦	Tachometers
◦	Resources
◦	Calibration and Metrology links
◦	Electrical Standards

Dental

◦	Informatives
◦	Dental Air - Air Quality
◦	Dental Air 2 - Untreated Air
◦	Dental Air 3 - Air Treatment
◦	Dental Air 4 - The cost
◦	Dental Air 6 - Other Considerations
◦	Autoclave Water Quality
◦	Handpice Couplings
◦	O-rings
◦	Maintenance Scheduling
◦	Identify all your equipment
◦	Practice Equipment Plan
◦	Equipment Inventory
◦	Parts
◦	A-dec Suction
◦	A-dec Light
◦	Handpiece Coupling Parts
◦	LED Bulbs
◦	Products
◦	AutoclavesDental
◦	Dental Units
◦	A-dec
◦	KaVo
◦	Ritter
◦	Sirona
◦	Stern Weber
◦	HighspeedHandpieces
◦	Imaging
◦	Camsight Explorer
◦	Digital Radiography - Phosphor Plate Systems
◦	Video Monitor
◦	X-Ray
◦	Lowspeed Motors
◦	Plant Room Equipment
◦	Durr Air Compressors
◦	Durr Suction
◦	Reverse Osmosis
◦	Ultrasonic Cleaners
◦	Water Quality Meter
◦	Terms & Conditions of Sales
◦	Services
◦	Services
◦	Schedule of fees
◦	Highspeed Handpiece Repairs
◦	Links

The Team

Home

Site Map