CLAS Certificate Number 2009-03

 
Company name Measurement Canada
Approval & Calibration Services Laboratory
Company address 151 Tunney's Pasture Driveway, Standards Building
Ottawa, Ontario K1A 0C9
Contact Isabelle Tremblay, Director - ACSL
Telephone: 613-952-0635
Fax: 613-952-1754
EmailIsabelle.Tremblay2@canada.ca
Clients served
  • Internal clients and Measurement Canada's authorized service providers
Fields of calibration
  • Thermometry
  • Pressure
  • Flow
  • Volume
  • Mass
  • Electrical
SCC accreditation
(ISO/IEC 17025)
  • Accredited Laboratory 659
  • First issued
  • Issue 7.0e

This scope of calibration capabilities is published by the CLAS program of the National Research Council of Canada (NRC) in close co-operation 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 the listed calibrations at the given Calibration Measurement Capability (see Supplementary note C and note D) with traceability to the International System of Units (SI) or to standards acceptable to the CLAS program.

Thermometry


Measured Quantity
& Range or Instrument
Calibration Measurement Capability
expressed as an uncertainty (±)
(See supplementary notes)
Type of Service Remarks
Thermometers
Direct Read, RTD
-40°C to +125°C
± 0.02°C I & II See note Footnote 1
Ice Point
0.000°C
± 0.005°C II

Pressure


Measured Quantity
& Range or Instrument
Calibration Measurement Capability
expressed as an uncertainty (±)
(See supplementary notes)
Type of Service Remarks
Pneumatic: Gauge pressure
1.7 kPa to 6.9 kPa 0.36 Pa II Calibration of precision pneumatic pressure gauges. Calibration by comparison to dead weight gauge, piston G2033P1217. MC procedure PR-CP-005.
6.9 kPa to 172 kPa 0.0037 % + 0.07 Pa Calibration of precision pneumatic pressure gauges. Calibration by comparison to dead weight gauge, piston G2033P1217. MC procedure PR-CP-005.
20.7 kPa to 689 kPa 0.0040 % + 0.33 Pa Calibration of precision pneumatic pressure gauges. Calibration by comparison to dead weight gauge, piston G2033C590. MC procedure PR-CP-005.
103.4 kPa to 3 447 kPa 0.0037 % + 2.8 Pa Calibration of precision pneumatic pressure gauges. Calibration by comparison to dead weight gauge, piston G2033G191. MC procedure PR-CP-005.
414 kPa to 20 684 kPa 0.0037 % + 4.3 Pa Calibration of precision pneumatic pressure gauges. Calibration by comparison to dead weight gauge, piston G2279P878. MC procedure PR-CP-005.
373 Pa to 6895 Pa 0.046 % + 0.40 Pa Calibration of pneumatic pressure gauges. Calibration by comparison to precision pressure controller. MC procedure PR-CP-003.
6.895 kPa to 172 kPa 0.046 % + 0.26 Pa Calibration of pneumatic pressure gauges. Calibration by comparison to precision pressure controller. MC procedure PR-CP-003.
20.7 kPa to 20684 kPa 0.046 % of reading Calibration of pneumatic pressure gauges. Calibration by comparison to precision pressure controller. MC procedure PR-CP-003.
Pneumatic: Absolute pressure
1.7 kPa to 6.9 kPa 0.36 Pa II Calibration of precision pneumatic pressure gauges. Calibration by comparison to dead weight gauge, piston G2033P1217. MC procedure PR-CP-005.
6.9 kPa to 172 kPa 0.0037 % + 2.3 Pa Calibration of precision pneumatic pressure gauges. Calibration by comparison to dead weight gauge, piston G2033P1217. MC procedure PR-CP-005.
20.7 kPa to 689 kPa 0.0040 % + 2.3 Pa Calibration of precision pneumatic pressure gauges. Calibration by comparison to dead weight gauge, piston G2033C590. MC procedure PR-CP-005.
103.4 kPa to 3 447 kPa 0.0037 % + 3.6 Pa Calibration of precision pneumatic pressure gauges. Calibration by comparison to dead weight gauge, piston G2033G191. MC procedure PR-CP-005.
414 kPa to 20 684 kPa 0.0037 % + 17 Pa Calibration of precision pneumatic pressure gauges. Calibration by comparison to dead weight gauge, piston G2279P878. MC procedure PR-CP-005.
373 Pa to 6895 Pa 0.046 % + 0.40 Pa Calibration of pneumatic pressure gauges. Calibration by comparison to precision pressure controller. MC procedure PR-CP-003.
6.895 kPa to 172 kPa 0.046 % + 0.26 Pa Calibration of pneumatic pressure gauges. Calibration by comparison to precision pressure controller. MC procedure PR-CP-003.
20.7 kPa to 20684 kPa 0.046 % of reading Calibration of pneumatic pressure gauges. Calibration by comparison to precision pressure controller. MC procedure PR-CP-003.

Flow

Dynamic Volume Gas Flow Rate


Measured Quantity
& Range or Instrument
Calibration Measurement Capability
expressed as an uncertainty (±)
(See supplementary notes)
Type of Service Remarks
Rotary Meters
1.4 to 65 m3/h ± 0.23 % I See note Footnote 2 (Positive displacement, Rotary piston)
50 to 2300 ft3/h
(using air)
Dimensional determination (strapping) of Gas Bell proving systems
2 ft3 0.08 % of the bell prover displaced volume I See note Footnote 3 On-site calibration available.

Calibration measurement capability of bell proving system at values other than those listed is obtained by linear interpolation.

10 ft3 0.05 % of the bell prover displaced volume
50 ft3 0.04 % of the bell prover displaced volume

Volume

Liquid Volume


Measured Quantity
& Range or Instrument
Calibration Measurement Capability
expressed as an uncertainty (±)
(See supplementary notes)
Type of Service Remarks
Small Volume Pipe Prover (SVP) Standard
60 L 0.04 % II See note Footnote 4

Static Liquid Volume


Measured Quantity
& Range or Instrument
Calibration Measurement Capability
expressed as an uncertainty (±)
(See supplementary notes)
Type of Service Remarks
Narrow Neck Volume Standard
20 L up to (but not including) 40 L ± 0.006 % I See note Footnote 5
40 L to 500 L ± 0.008 %

Mass


Measured Quantity
& Range or Instrument
Calibration Measurement Capability
expressed as an uncertainty (±)
(See supplementary notes)
Type of Service Remarks
Metric
25 kg ± 27 mg I & II

For the calibration of Reference Standards mass kits as defined in Measurement Canada Regulations and according to the tolerances prescribed in Schedule IV, Part I, II, III and IV of the Weights and Measures Regulations.

For the calibration of masses with traceability to the International System of Units (SI) through the primary standards of NRC and of Measurement Canada (MR-1). Calibration results are reported in terms of conventional mass as defined by the Organisation internationale de métrologie légale (OIML): "The conventional value of the value of the result of weighing a body in air is equal to mass of a standard, of conventionally chosen density (8000 kg/m3), at a conventionally chosen temperature (20 °C), which balances this body at this reference temperature in air of conventionally chosen density (1.2 kg/m3)." The Calibration Measurement Capability listed relates to measurements on integral conventional standard weights. It can be achieved only if the weights being calibrated are suitable for such a measurement.

See note Footnote 6 Definition of reporting units:
kilogram (kg)
gram (g)
milligram (mg)

20 kg ± 20 mg
10 kg ± 10 mg
5 kg ± 2.7 mg
3 kg ± 2.0 mg
2 kg ± 1.5 mg
1 kg ± 0.75 mg
500 g ± 0.27 mg
300 g ± 0.16 mg
200 g ± 0.10 mg
100 g ± 0.053 mg
50 g ± 0.033 mg
30 g ± 0.029 mg
20 g ± 0.027 mg
10 g ± 0.020 mg
5 g ± 0.017 mg
3 g ± 0.014 mg
2 g ± 0.013 mg
1 g ± 0.010 mg
500 mg ± 0.0083 mg
300 mg ± 0.0072 mg
200 mg ± 0.0067 mg
100 mg ± 0.0053 mg
50 mg ± 0.0040 mg
30 mg ± 0.0036 mg
20 mg ± 0.0033 mg
10 mg ± 0.0027 mg
5 mg ± 0.0020 mg
3 mg ± 0.0020 mg
2 mg ± 0.0020 mg
1 mg ± 0.0020 mg
Pound
50 lb ± 1.8 gr I & II

For the calibration of Reference Standards mass kits as defined in Measurement Canada Regulations and according to the tolerances prescribed in Schedule IV, Part I, II, III and IV of the Weights and Measures Regulations.

For the calibration of masses with traceability to the International System of Units (SI) through the primary standards of NRC and of Measurement Canada (MR-1). Calibration results are reported in terms of conventional mass as defined by the Organisation internationale de métrologie légale (OIML): "The conventional value of the value of the result of weighing a body in air is equal to mass of a standard, of conventionally chosen density (8000 kg/m3), at a conventionally chosen temperature (20 °C), which balances this body at this reference temperature in air of conventionally chosen density (1.2 kg/m3)." The Calibration Measurement Capability listed relates to measurements on integral conventional standard weights. It can be achieved only if the weights being calibrated are suitable for such a measurement.

See note Footnote 6 Definition of reporting units:
pound (lb)
ounce (oz)
dram (dr)
grain (gr)

30 lb ± 1.1gr
20 lb ± 0.75gr
10 lb ± 0.37gr
5 lb ± 0.18 gr
3 lb ± 0.11 gr
2 lb ± 0.075 gr
1 lb ± 0.037 gr
0.5 lb ± 0.018 gr
0.3 lb ± 0.011 gr
0.2 lb ± 0.0077gr
0.1 lb ± 0.0050 gr 
0.05 lb ± 0.0042 gr
0.03 lb ± 0.0034 gr
0.02 lb ± 0.0030 gr
0.01 lb ± 0.0025 gr
0.005 lb ± 0.0021 gr
0.003 lb ± 0.0017 gr
0.002 lb ± 0.0015 gr
0.001 lb ± 0.0012 gr
8 oz ± 0.018 gr
4 oz ± 0.0092 gr
2 oz ± 0.0056 gr
1 oz ± 0.0044 gr
8 dr ± 0.0035 gr
4 dr ± 0.0028 gr
2 dr ± 0.0023 gr
1 dr ± 0.0019 gr
½ dr ± 0.0015 gr
Ounce troy
500 ozt ± 1.2 gr I & II

For the calibration of Reference Standards mass kits as defined in Measurement Canada Regulations and according to the tolerances prescribed in Schedule IV, Part I, II, III and IV of the Weights and Measures Regulations.

For the calibration of masses with traceability to the International System of Units (SI) through the primary standards of NRC and of Measurement Canada (MR-1). Calibration results are reported in terms of conventional mass as defined by the Organisation internationale de métrologie légale (OIML): "The conventional value of the value of the result of weighing a body in air is equal to mass of a standard, of conventionally chosen density (8000 kg/m3), at a conventionally chosen temperature (20 °C), which balances this body at this reference temperature in air of conventionally chosen density (1.2 kg/m3)." The Calibration Measurement Capability listed relates to measurements on integral conventional standard weights. It can be achieved only if the weights being calibrated are suitable for such a measurement.

See note Footnote 6
Definition of reporting units:
ounce troy (ozt)
grain (gr)

400 ozt ± 0.96 gr
300 ozt ± 0.72 gr
200 ozt ± 0.48 gr
100 ozt ± 0.24 gr
50 ozt ± 0.12 gr
40 ozt ± 0.096 gr
30 ozt ± 0.072 gr
20 ozt ± 0.048 gr
10 ozt ± 0.024 gr
5 ozt ± 0.0123 gr
4 ozt ± 0.0102 gr
3 ozt ± 0.0080 gr
2 ozt ± 0.0059 gr
1 ozt ± 0.0045 gr
0.5 ozt ± 0.0037 gr
0.4 ozt ± 0.0033 gr
0.3 ozt ± 0.0030 gr
0.2 ozt ± 0.0027 gr
0.1 ozt ± 0.0022 gr
0.05 ozt ± 0.0018 gr
0.04 ozt ± 0.0017 gr
0.03 ozt ± 0.0015 gr
0.02 ozt ± 0.0013 gr
0.01 ozt ± 0.0011 gr
0.005 ozt ± 0.00094 gr
0.004 ozt ± 0.00085 gr
0.003 ozt ± 0.00076 gr
0.002 ozt ± 0.00067 gr
0.001 ozt ± 0.00055 gr
Grain
1000 gr ± 0.0061 gr I & II

For the calibration of Reference Standards mass kits as defined in Measurement Canada Regulations and according to the tolerances prescribed in Schedule IV, Part I, II, III and IV of the Weights and Measures Regulations.

For the calibration of masses with traceability to the International System of Units (SI) through the primary standards of NRC and of Measurement Canada (MR-1). Calibration results are reported in terms of conventional mass as defined by the Organisation internationale de métrologie légale (OIML): "The conventional value of the value of the result of weighing a body in air is equal to mass of a standard, of conventionally chosen density (8000 kg/m3), at a conventionally chosen temperature (20 °C), which balances this body at this reference temperature in air of conventionally chosen density (1.2 kg/m3)." The Calibration Measurement Capability listed relates to measurements on integral conventional standard weights. It can be achieved only if the weights being calibrated are suitable for such a measurement.

See note Footnote 6
Definition of reporting units:
grain (gr)

600 gr ± 0.0048 gr
300 gr ± 0.0041 gr
200 gr ± 0.0034 gr
100 gr ± 0.0027 gr
60 gr ± 0.0024 gr
30 gr ± 0.0020 gr
20 gr ± 0.0017 gr
10 gr ± 0.0014 gr
6 gr ± 0.0012 gr
3 gr ± 0.0010 gr
2 gr ± 0.00088 gr
1 gr ± 0.00068 gr
0.6 gr ± 0.00058 gr
0.3 gr ± 0.00051 gr
0.2 gr ± 0.00044 gr
0.1 gr ± 0.00034 gr
0.06 gr ± 0.00031 gr
0.03 gr ± 0.00031 gr
0.02 gr ± 0.00031 gr
0.01 gr ± 0.00031 gr
500 gr ± 0.0050 gr
50 gr ± 0.0023 gr
5 gr ± 0.0011 gr
0.5 gr ± 0.00062 gr
0.05 gr ± 0.00037 gr
Metric
5 kg ± 83 mg II

For the calibration of Inspection mass kits as defined in Measurement Canada Regulations and according to the tolerances prescribed in Schedule IV, Part I, II, III and IV of the Weights and Measures Regulations.

For the calibration of masses with traceability to the International System of Units (SI) through the primary standards of NRC and of Measurement Canada (MR-1). Calibration results are reported in terms of conventional mass as defined by the Organisation internationale de métrologie légale (OIML): "The conventional value of the value of the result of weighing a body in air is equal to mass of a standard, of conventionally chosen density (8000 kg/m3), at a conventionally chosen temperature (20 °C), which balances this body at this reference temperature in air of conventionally chosen density (1.2 kg/m3)." The Calibration Measurement Capability listed relates to measurements on integral conventional standard weights. It can be achieved only if the weights being calibrated are suitable for such a measurement.

See note Footnote 6
Definition of reporting units: kilogram (kg)
gram (g)
milligram (mg)

3 kg ± 50 mg
2 kg ± 33 mg
1 kg ± 17 mg
500 g ± 8.3 mg
300 g ± 5.0 mg
200 g ± 3.3 mg
100 g ± 1.7 mg
50 g ± 1.0 mg
30 g ± 0.89 mg
20 g ± 0.83 mg
10 g ± 0.67 mg
5 g  ± 0.53 mg
3 g ± 0.44 mg
2 g ± 0.40 mg
1 g ± 0.33 mg
500 mg ± 0.27 mg
300 mg ± 0.22 mg
200 mg ± 0.20 mg
100 mg ± 0.17 mg
50 mg ± 0.13 mg
30 mg ± 0.11 mg
20 mg ± 0.10 mg
10 mg ± 0.083 mg
Pound
10 lb ± 1.2 gr II

For the calibration of Inspection mass kits as defined in Measurement Canada Regulations and according to the tolerances prescribed in Schedule IV, Part I, II, III and IV of the Weights and Measures Regulations.

For the calibration of masses with traceability to the International System of Units (SI) through the primary standards of NRC and of Measurement Canada (MR-1). Calibration results are reported in terms of conventional mass as defined by the Organisation internationale de métrologie légale (OIML): "The conventional value of the value of the result of weighing a body in air is equal to mass of a standard, of conventionally chosen density (8000 kg/m3), at a conventionally chosen temperature (20 °C), which balances this body at this reference temperature in air of conventionally chosen density (1.2 kg/m3)." The Calibration Measurement Capability listed relates to measurements on integral conventional standard weights. It can be achieved only if the weights being calibrated are suitable for such a measurement.

See note Footnote 6
Definition of reporting units: pound (lb)
ounce (oz)
dram (dr)
grain (gr)

5 lb ± 0.58 gr
3 lb ± 0.35 gr
2 lb ± 0.23 gr
1 lb ± 0.12 gr
0.5 lb ± 0.058 gr
0.3 lb ± 0.035 gr
0.2 lb ± 0.024 gr
0.1 lb ± 0.015 gr
0.05 lb ± 0.013 gr
0.03 lb ± 0.011 gr
0.02 lb ± 0.010 gr
0.01 lb ± 0.0079 gr
0.005 lb ± 0.0064 gr
0.003 lb ± 0.0053 gr
0.002 lb ± 0.0050 gr
0.001 lb ± 0.0040 gr
8 oz ± 0.058 gr
4 oz ± 0.029 gr
2 oz ± 0.017gr
1 oz ± 0.014 gr
8 dr ± 0.011 gr
4 dr ± 0.0091 gr
2 dr ± 0.0072 gr
1 dr ± 0.0059 gr
½ dr ± 0.0049 gr

Electrical

Measured Quantity & Range or Instrument Frequency Calibration Measurement Capability
expressed as an Uncertainty (±) (See supplementary notes)
Type of service Remarks
Energy Wh
69 V to 600 V 60 Hz 0.006  % of reading I & II

For the calibration of energy metering devices according to calibration procedure EL-CP-002. See Annex I.

0.002 A to 50 A
PF = 0.5 or PF = 1
Energy varh
69 V to 600 V 60 Hz 0.006  % of reading I & II

For the calibration of energy metering devices according to calibration procedure EL-CP-002. See Annex II.

0.02 A to 50 A
PF = 0.5 or PF = 0.87
Energy VAh RMS
69 V to 600 V 60 Hz 0.006  % of reading I & II

For the calibration of energy metering devices according to calibration procedure EL-CP-002. See Annex III.

0.02 A to 50 A
PF = 0.5 or PF = 1
Energy VAh AVG
120 V to 600 V 60 Hz 0.006  % of reading I & II

For the calibration of energy metering devices according to calibration procedure EL-CP-002. See Annex IV.

1.25 A to 50 A
PF = 0.5 or PF = 1
Energy Qh
120 V to 600 V 60 Hz 0.006  % of reading I & II

For the calibration of energy metering devices according to calibration procedure EL-CP-002. See Annex V.

2.5 A to 50 A
PF = 0.5
Voltage (Vh RMS)
120 V to 600 60 Hz 0.006  % of reading I & II For the calibration of energy metering devices according to calibration procedure EL-CP-002. See Annex VI.
Current (Ah RMS)
0.25 A to 50 A 60 Hz 0.006  % of reading I & II For the calibration of energy metering devices according to calibration procedure EL-CP-002. See Annex VII.
Volt-squared hour V2h
65.5 V to 126 V 60 Hz 0.006  % of reading I & II For the calibration of energy metering devices according to calibration procedure EL-CP-002. See Annex VIII.
Ampere-squared hour A2h
0.25 A to 5 A 60 Hz 0.006  % of reading I & II For the calibration of energy metering devices according to calibration procedure EL-CP-002. See Annex IX.
 

Annex I

Calibration of Watthour energy (Wh) metering devices at unity (0º) and 0.5 lagging (-60º) power factor.

The expanded uncertainty associated with the Wh measurements at the settings listed in the table below is U = 0.006 % of reading, for a coverage factor of k = 2.

The following table shows the Voltage, Current and Phase angle applied to the Device Under Test.

Note: The values in the cells refer to the angle of the current vector with respect to the voltage vector.

  2 mA 2.5 mA 20 mA 25 mA 0.125 A 0.25 A 1.25 A 2.5 A 5 A 25 A 33.3 A 50 A
69 V             0º, -60º -60º      
120 V 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º
240 V 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º
277 V 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º
347 V 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º
480 V 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º
600 V 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º 0º, -60º
 

Annex II

Calibration of varhour energy (varh) metering devices at 0.87 (-30º) and 0.5 lagging (-60º) power factor.

The expanded uncertainty associated with the varh measurements at the settings listed in the table below is U = 0.006 % of reading, for a coverage factor of k = 2.

The following table shows the Voltage, Current and Phase angle applied to the Device Under Test.

Note: The values in the cells refer to the angle of the current vector with respect to the voltage vector.

  20 mA 25 mA 1.25 A 2.5 A 5 A 25 A 33.3 A 50 A
69 V     -30º -60º -30º -60º -30º      
120 V -30º -60º -30º -60º -30º -60º -30º -60º -30º -30º -60º -30º -30º -60º
240 V -30º -60º -30º -60º -30º -60º -30º -60º -30º -30º -60º -30º -30º -60º
277 V -30º -60º -30º -60º -30º -60º -30º -60º -30º -30º -60º -30º -30º -60º
347 V -30º -60º -30º -60º -30º -60º -30º -60º -30º -30º -60º -30º -30º -60º
480 V -30º -60º -30º -60º -30º -60º -30º -60º -30º -30º -60º -30º -30º -60º
600 V -30º -60º -30º -60º -30º -60º -30º -60º -30º -30º -60º -30º -30º -60º
 

Annex III

Calibration of Volt-Ampere hour (VAh RMS) metering devices at unity (0º) and 0.5 lagging (-60º) power factor.

The expanded uncertainty associated with the VAh RMS measurements at the settings listed in the table below is U = 0.006 % of reading, for a coverage factor of k = 2.

The following table shows the Voltage, Current and Phase angle applied to the Device Under Test.

Note: The values in the cells refer to the angle of the current vector with respect to the voltage vector.

  20 mA 25 mA 1.25 A 2.5 A 5 A 25 A 33.3 A 50 A
69 V     -60º -60º -60º      
120 V 0º -60º 0º -60º -60º -60º -60º -60º -60º -60º
240 V 0º -60º 0º -60º -60º -60º -60º -60º -60º -60º
277 V 0º -60º 0º -60º -60º -60º -60º -60º -60º -60º
347 V 0º -60º 0º -60º -60º -60º -60º -60º -60º -60º
480 V 0º -60º 0º -60º -60º -60º -60º -60º -60º -60º
600 V 0º -60º 0º -60º -60º -60º -60º -60º -60º -60º
 

Annex IV

Calibration of Average Volt-Ampere hour (VAh AVG) metering devices at unity (0º) and 0.5 lagging (-60º) power factor.

The expanded uncertainty associated with the VAh AVG measurements at the settings listed in the table below is U = 0.006 % of reading, for a coverage factor of k = 2.

The following table shows the Voltage, Current and Phase angle applied to the Device Under Test.

Note: The values in the cells refer to the angle of the current vector with respect to the voltage vector.

  1.25 A 2.5 A 5 A 25 A 33.3 A 50 A
120 V 0º -60º 0º -60º 0º -60º 0º -60º 0º -60º
240 V 0º -60º 0º -60º 0º -60º 0º -60º 0º -60º
277 V 0º -60º 0º -60º 0º -60º 0º -60º 0º -60º
347 V 0º -60º 0º -60º 0º -60º 0º -60º 0º -60º
480 V 0º -60º 0º -60º 0º -60º 0º -60º 0º -60º
600 V 0º -60º 0º -60º 0º -60º 0º -60º 0º -60º
 

Annex V

Calibration of Q-hour metering (Qh) devices 0.5 lagging (-60º) power factor.

The expanded uncertainty associated with the Qh measurements at the settings listed in the table below is U = 0.006 % of reading, for a coverage factor of k = 2.

The following table shows the Voltage, Current and Phase angle applied to the Device Under Test.

Note: The values in the cells refer to the angle of the current vector with respect to the voltage vector.

  2.5 A 25 A 50 A
120 V -60º -60º -60º
240 V -60º -60º -60º
277 V -60º -60º -60º
347 V -60º -60º -60º
480 V -60º -60º -60º
600 V -60º -60º -60º
 

Annex VI

Calibration of Voltage-hour (Vh RMS) metering devices

The expanded uncertainty associated with the Vh RMS measurements at the settings listed in the table below is U = 0.006 % of reading, for a coverage factor of k = 2.

The Scale of the reference standard is AUTORANGING (i.e. it depends on applied Voltage).

The following table shows the Voltage applied to the Device Under Test.

Voltage 120 V 240 V 347 V 480 V 600 V
 

Annex VII

Calibration of Ampere-hour (Ah RMS) metering devices

The expanded uncertainty associated with the Ah RMS measurements at the settings listed in the table below is U = 0.006 % of reading, for a coverage factor of k = 2.

The Scale of the reference standard is AUTORANGING (i.e. it depends on applied Current).

The following table shows the Current applied to the Device Under Test.

Current 0.25 A 0.5 A 2.5 A 5 A 25 A 33.3 A 50 A
 

Annex VIII

Calibration of Volt-Squared hour (V2h) metering devices

The expanded uncertainty associated with the V2h measurements at the settings listed in the table below is U = 0.006 % of reading, for a coverage factor of k = 2.

The Scale of the reference standard is AUTORANGING (i.e. it depends on applied Voltage).

The following table shows the Voltage applied to the Device Under Test.

Voltage 65.5 V 72.5 V 114 V 126 V
 

Annex IX

Calibration of Ampere-Squared hour (A2h) metering devices

The expanded uncertainty associated with the A2h measurements at the settings listed in the table below is U = 0.006 % of reading, for a coverage factor of k = 2.

The Scale of the reference standard is AUTORANGING (i.e. it depends on applied Current).

The following table shows the Current applied to the Device Under Test.

Current 0.25 A 2.5 A 5 A