CLAS Certificate Number 2004-01

Company name Measurements International Ltd.
Company address 118 Commerce Drive
PO Box 2359
Prescott, Ontario K0E 1T0
Contact Duane Brown
Telephone: 613-925-5934
Fax: 613-925-1195
Email: duanebrown@mintl.com
Clients served
  • All interested parties
Fields of calibration
  • Electrical dc & ac
SCC accreditation
(ISO/IEC 17025)
  • Accredited Laboratory Nº 536
  • First issued
  • Issue 5.7e

This CLAS Certificate is published by the CLAS program of the National Research Council of Canada (NRC) in cooperation with the laboratory accreditation program of the Standards Council of Canada (SCC), Canada's accreditation body for calibration and testing laboratories. The SCC accredits the capability of the named laboratory for being able to perform calibrations as per the listed Calibration and Measurement Capabilities with metrological traceability to the International System of Units (SI) or to standards acceptable to the CLAS program. See supplementary notes.

Measured Quantity & Range or Instrument Calibration Measurement Capability
expressed as an Uncertainty (±)
(See supplementary notes)
Type of Service Remarks
Resistance, DC
1 μΩ to 10 μΩ 500 to 20 μΩ/Ω I For the calibration of resistors using a current comparator bridge and associated range extenders.
10 μΩ to 100 μΩ 20 to 2 μΩ/Ω
100 μΩ to 1 mΩ 2 to 0.9 μΩ/Ω
1 mΩ to 10 mΩ 0.9 to 0.22 μΩ/Ω
10 mΩ to 100 mΩ 0.22 to 0.17 μΩ/Ω
100 mΩ to 1 Ω 0.17 to 0.1 μΩ/Ω
1 Ω to 10 Ω 0.1 to 0.19 μΩ/Ω
10 Ω to 100 Ω 0.19 to 0.22 μΩ/Ω
100 Ω to 1 kΩ 0.22 to 0.25 μΩ/Ω
1 kΩ to 10 kΩ 0.25 to 0.1 μΩ/Ω
13 kΩ 0.2 μΩ/Ω
10 kΩ to 100 kΩ 0.15 to 0.27 μΩ/Ω For the calibration of resistors using a high resistance bridge.
100 kΩ to 1 MΩ 0.27 to 0.37 μΩ/Ω
1 MΩ TO 10 MΩ 0.37 to 0.64 μΩ/Ω
10 MΩ TO 100 MΩ 0.64 to 2 μΩ/Ω
100 MΩ TO 1 GΩ 2 to 8.5 μΩ/Ω
1 GΩ TO 10 GΩ 8.5 to 35 μΩ/Ω For the calibration of resistors using a Dual Source Bridge. Uncertainty will depend on calibration voltage.
10 GΩ TO 100 GΩ 35 to 45 μΩ/Ω
100 GΩ TO 1 TΩ 45 to 60 μΩ/Ω
1 TΩ TO 10 TΩ 60 to 210 μΩ/Ω
10 TΩ TO 100 TΩ 210 to 1000 μΩ/Ω
100 TΩ TO 1 PΩ 1000 to 10000 μΩ/Ω
Voltage DC
100 mV to 10 V 2 μV/V I For the calibration of voltage sources using a zener reference standard and Binary Voltage Divider (BVD).
10 V to 30 V 2 μV/V
30 V to 300 V 2 μV/V
300 V to 1000 V 2 μV/V
Current DC
1 mA to 10 mA 5 to 10 μA/A I Source: For the calibration of current shunts and current sources using associated range extenders.
10 mA to 100 A 3 to 13 μA/A
100 A to 400 A 13 to 50 μA/A
10 pA to 1 mA 560 to 5 μA/A Source: for the calibration of current measuring devices using a voltage source and resistors.
Resistance ratio, DC
10:1 resistance ratios
0.1 Ω to 1 Ω 0.05 parts per 106 I For the calibration of the ratio errors of DC current comparator bridges using resistors to generate a resistance ratio.
1 Ω to 10 Ω 0.05 parts per 106
10 Ω to 100 Ω 0.05 parts per 106
100 Ω to 1 kΩ 0.05 parts per 106
1 kΩ to 10 kΩ 0.05 parts per 106
1 kΩ to 13 kΩ 0.05 parts per 106
10 kΩ to 100 kΩ 0.08 parts per 106
100 kΩ to 1 MΩ 0.1 parts per 106
1 MΩ TO 10 MΩ 0.15 parts per 106
10 MΩ TO 100 MΩ 1.5 parts per 106
1:1 resistance ratios
1 Ω to 1 Ω 0.03 parts per 106 I For the calibration of the ratio errors of DC current comparator bridges using resistors to generate a resistance ratio.
10 Ω to 10 Ω 0.03 parts per 106
100 Ω to 100 Ω 0.03 parts per 106
1 kΩ to 1 kΩ 0.03 parts per 106
10 kΩ to 10 kΩ 0.03 parts per 106
100 kΩ to 100 kΩ 0.10 parts per 106
1 MΩ TO 1 MΩ 0.12 parts per 106
10 MΩ TO 10 MΩ 0.15 parts per 106
100 MΩ TO 100 MΩ 1.5 parts per 106
1 Ω to 0.1 Ω 0.2 parts per 106 I For the calibration of direct current comparator range extenders using resistors to generate a resistance ratio.
10 Ω to 1 Ω 0.2 parts per 106
10 Ω to 0.1 Ω 0.2 parts per 106
10 Ω to 0.01 Ω 0.3 parts per 106
10 Ω to 0.001 Ω 0.3 parts per 106
100 Ω to 0.01 Ω 2 parts per 106
100 Ω to 0.001 Ω 10 parts per 106
High Resistance Meters
Direct Reading
1 MΩ 15 μΩ/Ω I For the calibration of high resistance meters using standard resistors.
10 MΩ 15 μΩ/Ω
100 MΩ 15 μΩ/Ω
1 GΩ 45 μΩ/Ω
10 GΩ 150 μΩ/Ω
100 GΩ 200 μΩ/Ω
1 TΩ 200 μΩ/Ω
10 TΩ 500 μΩ/Ω
100 TΩ 1800 μΩ/Ω
Measurement Ratio 10:1
10 MΩ 15 μΩ/Ω I For the calibration of high resistance meters using standard resistors to generate a resistance ratio.
100 MΩ 15 μΩ/Ω
1 GΩ 50 μΩ/Ω
10 GΩ 150 μΩ/Ω
100 GΩ 220 μΩ/Ω
1 TΩ 300 μΩ/Ω
10 TΩ 600 μΩ/Ω
100 TΩ 1400 μΩ/Ω
Measurement Ratio 100:1
100 MΩ 20 μΩ/Ω I For the calibration of high resistance meters using standard resistors to generate a resistance ratio.
1 GΩ 50 μΩ/Ω
10 GΩ 140 μΩ/Ω
100 GΩ 200 μΩ/Ω
1 TΩ 220 μΩ/Ω
10 TΩ 400 μΩ/Ω
100 TΩ 1400 μΩ/Ω
Measured Quantity & Range or Instrument Frequency Calibration Measurement Capability
expressed as an Uncertainty (±)
(See supplementary notes)
Type of service Remarks
Resistance, AC
12 kΩ, 24 kΩ 50 & 60 Hz 25 μΩ/Ω I For the calibration of resistors using a high voltage capacitance bridge.
On-site calibration available.
Current, AC
5 mA to 5 A 50 & 60 Hz 30 μA/A I For the calibration of AC current measuring devices using a power calibration system.
Voltage, AC
6 V to 300 V 50 & 60 Hz 30 μV/V I For the calibration of AC voltage measuring devices using a power calibration system.
Capacitance
10 pF, 50 pF,
100 pF
50 & 60 Hz 20 μF/F I For the calibration of high voltage capacitors using a high voltage capacitance bridge. Both capacitance and dissipation factor are reported,
On-site calibration available.
1000 pF 50 & 60 Hz 15 μF/F
1200 pF to 1 µF 50 & 60 Hz 22 μF/F
Capacitance bridge ratio error
Available ratios
1:1, 2:1, 5:1,10:1, 20:1, 50:1, 100:1, 200;1, 500:1 & 1000:1
50 & 60 Hz 20 parts per 106 I For the calibration of high voltage capacitance bridge ratio errors for voltages up to 100 kV using capacitors to generate a capacitance ratio. Both in-phase and dissipation factor errors are reported.
High voltage divider calibration
Available ratios
1:1, 21, 5:1, 10:1, 20:1, 50:1 & 100:1
50 & 60 Hz 20 parts per 106 I For the calibration of high voltage dividers using capacitance bridges and standard capacitors. Both in-phase and quadrature errors are reported.
On-site calibration available
Current transformers
Available ratios
1000:1 & 2000:1
50 & 60 Hz 15 parts per 106 I Comparison to standard current transformer. Both in-phase and quadrature errors are reported.
On-site calibration available
Current ratio
Available ratios
1:1, 2:1, 3:1, 5:1 & 10:1
50 & 60 Hz 25 parts per 106 I For the calibration of current ratio bridges used for the comparison of current transformers. Using current transformers to generate a current ratio. Both in-phase and quadrature errors are reported.
Voltage ratio
Available ratios
1:1, 2:1, 5:1, 10:1, 20:1, 50:1 & 100:1
50 & 60 Hz 25 parts per 106 I For the calibration of voltage ratio bridges used for the comparison of voltage transformers. Using voltage transformers to generate a voltage ratio. Both in-phase and quadrature errors are reported.
AC power
0 W to 1200 W 50 & 60 Hz 30 μW/W I For the calibration of ac power measurement devices for voltages up to 240 V and currents up to 5 A at power factors of zero to unity using an AC power calibrator. See Annex A.

Annex A

Examples of best uncertainty, ± (% of applied signal)* for the calibration of ac power measurement devices including watt meters
Applied Signal,
Vapp x Iapp
Scale,
Vs x Is
Power Factor, pf
1 0.5 0.1 0
120 V x 5 mA 120 V x 5 mA 0.003 0.003 0.0033 0.0033
120 V x 10 mA 120 V x 10 mA 0.003 0.003 0.0033 0.0033
120 V x 20 mA 120 V x 20 mA 0.003 0.003 0.0033 0.0033
120 V x 50 mA 120 V x 50 mA 0.003 0.003 0.0033 0.0033
120 V x 100 mA 120 V x 100 mA 0.003 0.003 0.0033 0.0033
120 V x 200 mA 120 V x 200 mA 0.003 0.003 0.0033 0.0033
120 V x 500 mA 120 V x 500 mA 0.003 0.003 0.0033 0.0033
120 V x 1 A 120 V x 1 A 0.003 0.003 0.0033 0.0033
120 V x 2 A 120 V x 2 A 0.003 0.003 0.0033 0.0033
120 V x 5 A 120 V x 5 A 0.003 0.003 0.0033 0.0033
240 V x 5 mA 240 V x 5 mA 0.003 0.003 0.0033 0.0033
240 V x 10 mA 240 V x 10 mA 0.003 0.003 0.0033 0.0033
240 V x 20 mA 240 V x 20 mA 0.003 0.003 0.0033 0.0033
240 V x 50 mA 240 V x 50 mA 0.003 0.003 0.0033 0.0033
240 V x 100 mA 240 V x 100 mA 0.003 0.003 0.0033 0.0033
240 V x 200 mA 240 V x 200 mA 0.003 0.003 0.0033 0.0033
240 V x 500 mA 240 V x 500 mA 0.003 0.003 0.0033 0.0033
240 V x 1 A 240 V x 1 A 0.003 0.003 0.0033 0.0033
240 V x 2 A 240 V x 2 A 0.003 0.003 0.0033 0.0033
240 V x 5 A 240 V x 5 A 0.003 0.003 0.0033 0.0033