Home / Low Frequency Standards, Lindfield

National Measurement Institute (NMI)

Site

Low Frequency Standards, Lindfield

Accreditation No.

Site No.

14538

Date of Accreditation

03 Jul 2001

Address

36 Bradfield Road
Lindfield West, NSW 2070
Australia

measurement.gov.au

Contact

Ms Charmaine Kwan P: +61 (02) 84673836

Availability

Services conditionally available to external clients

Scope of Accreditation

Print scopes

Low Frequency Standards, Lindfield

ISO/IEC 17025 (2017)

Calibration

The uncertainty of measurement is reported as an expanded uncertainty having a level of confidence of 95% unless stated otherwise

Service

Product

Determinant

Technique

Procedure

Limitations

DC and low frequency electrical metrology - Electrical instrument calibrators

Instrument calibrators

Resistance

Comparison with a primary realisation; Comparison with a reference standard

Capability

With Calibration and Measurement Capability of -

	Expanded Uncertainty / (µΩ/Ω)
≤ 1 Ω to ≤ 10 kΩ	1.0
< 10 kΩ to ≤ 100 kΩ	1.5
< 100 kΩ to ≤ 1 MΩ	2
< 1 MΩ to ≤ 10 MΩ	4.0
< 10 MΩ to ≤ 100 MΩ	10
< 100 MΩ to ≤ 1 GΩ	100

AC current; AC voltage; DC current; DC voltage

Comparison with a primary realisation; Comparison with a reference standard

Capability

with Calibration and Measurement Capability of -

DC Voltage 0 V to 1100 V
Measurements with Reference standard JVS presently not available

	Expanded Uncertainty
Voltage	Reference standard: Nanovoltmeter	Reference standard: Calibrator	Reference standard: JVS
0 V to 10 nV	0.1 µV	-	0.05 µV
> 10 nV to 100 nV	0.2 µV	-	0.05 µV
> 100 nV to < 100 mV	0.3 µV	-	0.05 µV
100 mV to 220 mV	2.2 µV	11 µV/V	1.4 µV/V
220 mV to 10 V	-	2.9 µV/V	0.8 µV/V

	Expanded Uncertainty / (µV/V)
Voltage	Reference standard: Calibrator	Reference standard: JAVS
10 V to 22 V	2.3	1.1
22 V to 220 V	2.1	1.2
220 V to 1100 V	2.8	1.2

AC Voltage from 0.6 mV to 1000 V and 1 Hz to 1 MHz

	Expanded Uncertainty / (µV/V)
	Voltage Measurement Standard
Frequency	10 Hz to < 20 Hz	20 Hz to < 30 Hz	30 Hz to < 40 Hz	40 Hz to < 57 Hz	57 Hz to < 100 Hz	100 Hz to < 400 Hz	400 Hz to < 1 kHz	1 kHz	> 1 kHz to 5 kHz
0.6 mV to < 1 mV	250	200	210	190	180	190	170	180	170
1 mV to < 2.2 mV	120	90	90	110	90	110	90	80	90
2.2 mV to < 6 mV	40	40	70	44	40	40	40	40	41
6 mV to < 22 mV	59	50	38	81	39	52	42	38	38
22 mV to < 60 mV	44	34	31	27	27	29	32	27	27
60 mV to < 220 mV	130	110	98	97	96	96	96	96	96
0.22 V to < 0.6 V	46	29	20	13	12	11	11	11	15
0.6 V to 1 V	33	20	13	9	10	10	8	8	9
> 1 V to 6 V	33	21	13	10	10	10	10	10	10
> 6V to 22 V	33	21	14	13	12	13	13	12	12
> 22 V to 60 V	41	24	20	18	17	18	17	20	19
> 60 V to 100 V	36	23	18	18	18	18	18	17	18
> 100 V to 250 V	35	23	18	18	18	18	18	18	18
> 250 V to 300 V	-	-	-	20	20	20	20	20	20
> 300 V to 750 V	-	-	-	20	20	20	20	20	24
> 750 V to 1000 V	-	-	-	21	21	21	21	21	26

	Expanded Uncertainty / (µV/V)
	Voltage Measurement Standard
Frequency	> 5 kHz to 10 kHz	> 10 kHz to 20 kHz	> 20 kHz to 30 kHz	> 30 kHz to 50 kHz	> 50 kHz to 100 kHz	> 100 kHz to 200 kHz	> 200 kHz to 300 kHz	> 300 kHz to 500 kHz	> 500 kHz to 800 kHz	> 800 kHz to 1 MHz
0.6 mV to < 1 mV	170	160	150	250	690	1100	1300	1400	1900	2000
1 mV to < 2.2 mV	80	80	90	120	140	310	310	490	710	690
2.2 mV to < 6 mV	40	40	40	41	53	110	140	230	270	300
6 mV to < 22 mV	38	40	38	45	47	69	84	150	210	230
22 mV to < 60 mV	27	34	34	34	44	54	67	89	160	180
60 mV to < 220 mV	98	98	98	99	110	110	120	140	200	220
0.22 V to < 0.6 V	13	14	18	20	22	26	33	58	82	110
0.6 V to 1 V	9	10	12	14	18	22	27	41	74	99
> 1 V to 6 V	10	12	12	14	19	26	31	49	95	140
> 6 V to 22 V	12	14	14	16	24	32	34	51	110	160
> 22 V to 60 V	19	30	26	43	35	43	54	-	-	-
> 60 V to 100 V	18	18	18	21	28	42	-	-	-	-
> 100 V to 250 V	18	18	18	21	29	-	-	-	-	-
> 250 V to 300 V	20	20	23	23	33	-	-	-	-	-
> 300 V to 750 V	24	24	24	34	66	-	-	-	-	-
> 750 V to 1000 V	26	26	32	-	-	-	-	-	-	-

DC Current from 0 A up to 10 A

	Expanded Uncertainty
0 A to 50 µA	1.5 nA
50 µA to < 100 µA	30 µA/A
100 µA to < 1 mA	14 µA/A
1 mA to < 10 mA	12 µA/A
10 mA to < 100 mA	7 µA/A
100 mA to < 1A	13 µA/A
1 A to 10 A	12 µA/A

AC Current from 10 μA to 100 A and 10 Hz to 30 kHz

	Expanded Uncertainty / (µA/A)
	10 Hz to < 57 Hz	57 Hz	> 57 Hz to 400 Hz	> 400 Hz to 1 kHz	> 1 kHz to 5 kHz	> 5 kHz to 10 kHz	> 10 kHz to 30 kHz
10 µA to < 0.1 mA	230	90	90	92	140	600	-
0.1 mA to < 1 mA	120	45	45	47	67	300	620
1 mA to < 10 mA	120	44	44	46	63	300	150
10 mA to < 100 mA	120	44	44	45	63	300	170
100 mA	65	26	26	26	40	180	130
> 100 mA to 1 A	100	39	56	200	250	300	-
> 1 A to 10 A	200	78	120	400	-	-	-
> 10 A to 20 A	250	100	150	500	-	-	-
> 20 A to 100 A	-	40	-	-	-	-	-

DC and low frequency electrical metrology - Electrical measurement and test equipment

Ammeters; Digital multimeters (DMM); Electricity meters; Ohm meters; Power factor meters; Varmeters; Voltmeters; Watt meters

AC current; AC voltage; Apparent power; DC current; DC voltage; Power factor; Resistance

Comparison with a primary realisation; Comparison with a reference standard

Capability

with Calibration and Measurement Capability of -
DC Voltage from 1 mV up to 1100 V

Measurements with Reference standard JVS presently available only at voltages from 1 mV to 10 V

	Expanded Uncertainty
Voltage	Reference standard: Calibrator	Reference standard: JVS
0 V to 1 mV	5 μV	0.5 μV
1 mV to 10 mV	500 μV/V	50 μV/V
10 mV to 100 mV	50 μV/V	8.6 μV/V
100 mV to 1 V	8 μV/V	0.5 μV/V
1 V to 10 V	3 μV/V	0.1 μV/V
10 V to 100 V	2 μV/V	0.1 μV/V
100 V to 1000 V	5 μV/V	1.0 μV/V

AC Voltage from 3 mV to 1000 V and 1 Hz to 1 MHz

For Digital Multimeter

	Expanded Uncertainty / (μV/V)
	Digital Sampling Voltmeter	Digital Sampling Voltmeter	Voltage Measurement Standard
Frequency	1 Hz to < 5 Hz	5 Hz to < 10 Hz	10 Hz to < 20 Hz	20 Hz to < 30 Hz	30 Hz to < 40 Hz	40 Hz to < 57 Hz	57 Hz to < 100 Hz	100 Hz to < 400 Hz	400 Hz to < 1 kHz	1 kHz
3 mV to < 10 mV	60	30	790	690	670	670	670	620	620	620
10 mV to < 30 mV	60	20	670	560	540	530	530	460	460	460
30 mV to < 100 mV	60	20	440	430	420	420	420	380	380	380
100 mV to < 0.3 V	60	20	130	100	80	80	80	80	80	80
0.3 V to < 1 V	60	20	100	70	50	50	50	50	50	50
1 V to 3 V	60	20	80	60	40	40	40	40	40	40
> 3 V to 10 V	60	20	80	60	40	40	40	40	40	40
> 10 V to 30 V	60	20	80	60	40	40	40	40	40	40
> 30 V to 100 V	60	20	80	60	40	40	40	40	40	40
> 100 V to 700 V	60	20	80	60	60	60	40	40	40	40
> 700 V to 1000 V	-	-	100	80	70	70	70	70	70	70

	Expanded Uncertainty / (μV/V)
	Voltage Measurement Standard
Frequency	> 1 kHz to 5 kHz	> 5 kHz to 10 kHz	> 10 kHz to 20 kHz	> 20 kHz to 30 kHz	> 30 kHz to 50 kHz	> 50 kHz to 100 kHz	> 100 kHz to 200 kHz	> 200 kHz to 300 kHz	> 300 kHz to 500 kHz	> 500 kHz to 1 MHz
3 mV to < 10 mV	620	620	620	620	720	750	850	1700	2400	5000
10 mV to < 30 mV	460	460	470	480	600	640	750	1600	2400	5000
30 mV to < 100 mV	380	380	380	390	470	500	620	1100	1200	2500
100 mV to < 0.3 V	80	80	90	100	190	270	450	480	670	1500
0.3 V to < 1 V	50	50	60	80	110	210	420	450	650	1400
1 V to 3 V	40	50	60	70	110	210	410	450	650	1400
> 3 V to 10 V	40	50	60	70	110	210	410	450	650	1400
> 10 V to 30 V	40	50	60	70	110	210	410	450	650	1400
> 30 V to 100 V	40	50	60	70	110	210	410	450	640	-
> 100 V to 700 V	40	50	60	80	110	210	410	450	-	-
> 700 V to 1000 V	70	70	80	130	160	290	-	-	-	-

DC Current (including Picoameters) from 10 pA up to 20 A

	Expanded Uncertainty / (μA/A)
10 pA	1400
100 pA	700
1 nA	530
10 nA	530
100 nA	530
1 μA	210
10 μA	210
100 μA	120
100 μA to < 1 mA	14
1 mA to < 10 mA	12
10 mA to 100 mA	7
> 100 mA to 1 A	13
> 1 A to 10 A	12
> 10 A to 20 A	26

AC Current from 10 μA to 20 A and 10 Hz to 30 kHz

	Expanded Uncertainty / (μA/A)
	10 Hz to < 57 Hz	57 Hz to < 400 Hz	400 Hz to < 1 kHz	1 kHz	> 1 kHz to 5 kHz	> 5 kHz to 10 kHz	> 10 kHz to 20 kHz	> 20 kHz to 30 kHz
10 μA to < 50 μA	740	430	450	440	-	-	-	-
50 μA to < 100 μA	470	140	140	140	-	-	-	-
0.1 mA to < 1 mA	120	59	59	69	88	110	340	620
1 mA to < 10 mA	120	59	59	59	73	87	100	150
10 mA to < 100 mA	120	58	58	58	62	71	120	170
100 mA	86	29	29	29	29	45	83	130
> 100 mA to 1 A	68	30	30	30	45	83	120	200
> 1 A to 10 A	110	72	72	95	300	500	700	-
> 10 A to 20 A	170	110	110	150	450	750	1100	-

Ohmmeters from 0 mΩ to 1 GΩ

	Expanded Uncertainty
0 mΩ to <100 mΩ	0.2 μΩ
100 mΩ to < 10 Ω	2 µΩ/Ω
10 Ω to 10 kΩ	1 µΩ/Ω
> 10 kΩ to 100 kΩ	2 µΩ/Ω
> 100 kΩ to 1 MΩ	3 µΩ/Ω
> 1 MΩ to 100 MΩ	10 µΩ/Ω
> 100 MΩ to 1 GΩ	100 µΩ/Ω

Wattmeters and Electricity Meters (sinewave from 1 V to 1000 V and 0.01 A to 200 A and 47 Hz to 60 Hz)
Mains Frequency Power

	Expanded Uncertainty / (μW/(VA))	Voltage	Frequency	Power Factor
0.01 A to 0.1 A	20	1 V to 1000 V	47 Hz to 60 Hz	1 to 0 L/C
> 0.1 A to 100 A > 100 A to 200 A	10 30	1 V to 1000 V 1 V to 1000 V	47 Hz to 60 Hz 47 Hz to 60 Hz	1 to 0 L/C 1 to 0 L/C

Power with Distorted Voltage or Current
Distorted voltage or current from 60 V to 240 V and 0.001 A to 10 A and 47 Hz to 60 Hz
Fundamental frequency and voltage or current harmonics up to 200 kHz

	Expanded Uncertainty / (μW/(VA))	Voltage	Frequency	Voltage or Current Harmonics maximum frequency / kHz	Power Factor
0.001 A to 0.01 A	100	60 V to 240 V	47 Hz to 60 Hz	200	1 to 0 L/C
> 0.01 A to 10 A	50	60 V to 240 V	47 Hz to 60 Hz	200	1 to 0 L/C

Varmeters
0.004% of Apparent Power from 60 V to 240 V and 0.1A to 120 A at 47 Hz to 60 Hz

Power Factor Meters
0.00005 power factor from 60 V to 480 V and 0.1 A to 100 A and 47 Hz to 60 Hz

Multi-purpose AC measurement and transfer standard

AC current; AC voltage; DC current; DC voltage

Comparison with a primary realisation; Comparison with a reference standard

Capability

with Calibration and Measurement Capability of -

DC Voltage from 0 mV up to 1100 V

Measurements with Reference standard JVS presently available only at voltages from 1 mV to 10 V

	Expanded Uncertainty
Voltage	Reference standard: Calibrator	Reference standard: JVS
0 V to <1 mV	0.5 μV	0.05 μV
1 mV to 10 mV	500 μV/V	50 μV/V
10 mV to 100 mV	50 μV/V	8.6 μV/V
100 mV to 1 V	8 μV/V	0.5 μV/V
1 V to 10 V	3 μV/V	0.1 μV/V
10 V to 100 V	2 μV/V	0.1 μV/V
100 V to 1000 V	5 μV/V	1.0 μV/V

AC Voltage from 1 mV to 1000 V and 10 Hz to 1 MHz

For AC Measurement Standard

	Expanded Uncertainty / (μV/V)
Frequency	10 Hz to < 20 Hz	20 Hz to < 30 Hz	30 Hz to < 40 Hz	40 Hz to < 57 Hz	57 Hz to < 100 Hz	100 Hz to < 400 Hz	400 Hz to < 1 kHz	1 kHz	> 1 kHz to 5 kHz	> 5 kHz to 10 kHz
1 mV to < 2 mV	200	150	120	100	100	100	100	100	100	100
2 mV to < 6 mV	130	100	70	70	50	50	50	50	50	50
6 mV to < 20 mV	90	70	45	35	35	35	35	35	35	35
20 mV to < 60 mV	70	50	40	35	35	35	35	35	35	35
60 mV to < 200 mV	65	45	35	35	35	35	35	35	35	35
200 mV to < 600 mV	60	36	30	20	20	20	20	20	20	20
600 mV to < 2 V	10	9	8	8	8	8	8	8	8	8
2V	9	8	7	7	7	7	7	7	7	7
> 2 V to 6 V	11	9	9	9	9	9	9	9	9	9
> 6 V to 20 V	11	10	9	9	9	9	9	9	9	9
> 20 V to 60 V	15	12	11	11	11	11	11	11	11	11
> 60 V to 200 V	20	15	15	15	15	15	15	15	15	15
> 200 V to 600 V	20	18	17	17	17	17	17	17	21	21
> 600 V to 1000 V	41	27	23	23	23	23	23	23	23	25

	Expanded Uncertainty / (μV/V)
Frequency	> 10 kHz to 20 kHz	> 20 kHz to 30 kHz	> 30 kHz to 50 kHz	> 50 kHz to 100 kHz	> 100 kHz to 200 kHz	> 200 kHz to 300 kHz	> 300 kHz to 500 kHz	> 500 kHz to 800 kHz	> 800 kHz to 1 MHz
1 mV to < 2 mV	100	100	100	200	800	1100	1200	1500	1600
2 mV to < 6 mV	50	50	50	130	180	200	220	550	800
6 mV to < 20 mV	35	35	35	70	80	110	200	400	600
20 mV to < 60 mV	35	35	35	55	65	90	140	260	300
60 mV to < 200 mV	35	35	35	50	60	80	130	200	240
200 mV to < 600 mV	24	28	32	36	44	70	130	190	220
600 mV to < 2 V	8	8	8	12	16	26	34	40	50
2V	7	7	7	10	14	22	29	34	43
> 2 V to 6 V	9	9	9	14	18	27	39	50	60
> 6 V to 20 V	9	11	12	15	23	26	54	-	-
> 20 V to 60 V	11	12	14	17	-	-	-	-	-
> 60 V to 200 V	38	38	38	38	-	-	-	-	-
> 200 V to 600 V	22	27	35	45	-	-	-	-	-
> 600 V to 1000 V	28	33	40	57	-	-	-	-	-

DC Current (including Picoameters) from 10 pA up to 20 A

	Expanded Uncertainty / (μA/A)
10 pA	1400
100 pA	700
1 nA	530
10 nA	530
100 nA	530
1 μA	210
10 μA	210
100 μA	120
100 μA to < 1 mA	14
1 mA to < 10 mA	12
10 mA to 100 mA	7
> 100 mA to 1 A	13
> 1 A to 10 A	12
> 10 A to 20 A	26

AC Current from 10 μA to 20 A and 10 Hz to 30 kHz

	Expanded Uncertainty / (μA/A)
	10 Hz to < 57 Hz	57 Hz to < 400 Hz	400 Hz to < 1 kHz	1 kHz	> 1 kHz to 5 kHz	> 5 kHz to 10 kHz	> 10 kHz to 20 kHz	> 20 kHz to 30 kHz
10 μA to < 50 μA	740	430	450	440	-	-	-	-
50 μA to < 100 μA	470	140	140	140	-	-	-	-
0.1 mA to < 1 mA	120	59	59	69	88	110	340	620
1 mA to < 10 mA	120	59	59	59	73	87	100	150
10 mA to < 100 mA	120	58	58	58	62	71	120	170
100 mA	86	29	29	29	29	45	83	130
> 100 mA to 1 A	68	30	30	30	45	83	120	200
> 1 A to 10 A	110	72	72	95	300	500	700	-
> 10 A to 20 A	170	110	110	150	450	750	1100	-

DC and low frequency electrical metrology - Electrical standards

AC/DC transfer instruments

Current AC-DC difference

Comparison with a reference standard

Capability

from 0.0001 A to 100 A and 10 Hz to 200 kHz
with Calibration and Measurement Capability of -

	Expanded Uncertainty / (μA/A)
	10 Hz to < 20 Hz	20 Hz to < 30 Hz	30 Hz to < 40 Hz	40 Hz to < 57 Hz	57 Hz to < 100 Hz	100 Hz to < 400 Hz	400 Hz to < 1 kHz	1 kHz
0.1 mA to < 1 mA	99	52	40	36	36	36	44	51
1 mA to < 10 mA	99	52	39	35	34	34	39	41
10 mA to < 30 mA	6	5	5	4	4	4	4	4
30 mA to < 50 mA	8	6	5	4	4	4	4	4
50 mA to < 100 mA	9	7	5	4	4	4	4	4
100 mA	9	7	6	5	4	4	4	4
> 100 mA to 400 mA	10	8	6	5	5	5	4	4
> 400 mA to 1.5 A	11	8	6	5	5	5	5	5
> 1.5 A to 5 A	11	9	7	5	5	5	5	5
> 5 A to 20 A	14	12	11	10	10	10	10	10
> 20 A to 50 A	19	16	15	14	14	14	14	13
> 50 A to 100 A	22	18	17	16	16	15	14	14

	Expanded Uncertainty / (μA/A)
	> 1 kHz to 5 kHz	> 5 kHz to 10 kHz	> 10 kHz to 20 kHz	> 20 kHz to 30 kHz	> 30 kHz to 50 kHz	> 50 kHz to 100 kHz	> 100 kHz to 200 kHz
0.1 mA to < 1 mA	73	120	-	-	-	-	-
1 mA to < 10 mA	49	65	-	-	-	-	-
10 mA to < 30 mA	4	4	5	6	7	8	10
30 mA to < 50 mA	4	5	5	6	7	9	11
50 mA to < 100 mA	4	5	6	7	8	10	13
100 mA	4	5	6	7	9	12	17
> 100 mA to 400 mA	5	6	6	8	10	12	18
> 400 mA to 1.5 A	5	6	7	8	10	13	19
> 1.5 A to 5 A	5	6	7	9	13	21	-
> 5 A to 20 A	10	14	16	21	26	32	-
> 20 A to 50 A	16	21	29	37	46	61	-
> 50 A to 100 A	18	26	38	52	65	84	-

Voltage AC-DC difference

Comparison with a reference standard

Capability

From 1 mV to 1000 V and 10 Hz to 1 MHz
with Calibration and Measurement Capability of -

	Expanded Uncertainty / (μV/V)
	10 Hz to < 20 Hz	20 Hz to < 30 Hz	30 Hz to < 40 Hz	40 Hz to < 57 Hz	57 Hz to < 100 Hz	100 Hz to < 400 Hz	400 Hz to < 1 kHz	1 kHz	> 1 kHz to 5 kHz	> 5 kHz to 10 kHz
1 mV to < 2 mV	260	220	200	170	170	170	170	170	180	180
2 mV to < 5 mV	110	85	77	77	77	77	77	77	78	78
5 mV to < 10 mV	77	58	53	53	53	53	53	53	54	54
10 mV to < 20 mV	53	41	38	38	38	38	38	38	40	40
20 mV to < 30 mV	46	33	31	31	31	31	31	31	33	33
30 mV to < 50 mV	38	28	24	24	23	23	23	24	24	24
50 mV to < 100 mV	30	20	16	14	14	14	14	14	15	16
100 mV to < 200 mV	28	20	16	13	13	13	13	13	15	15
200 mV to < 300 mV	28	20	16	13	12	12	12	12	14	14
300 mV to < 0.5 V	28	20	16	13	12	12	12	12	14	14
0.5 V to < 1 V	4.8	2.5	1.6	1.3	1.2	1.2	1.2	1.2	1.4	1.4
1 V to < 2 V	5.2	2.6	1.7	1.3	1.3	1.2	1.2	1.2	1.4	1.4
2 V to < 3 V	5.1	2.6	1.6	1.3	1.3	1.2	1.2	1.2	1.4	1.4
3 V to 4 V	5.2	2.6	1.7	1.3	1.3	1.2	1.2	1.2	1.4	1.4
> 4 V to 6 V	7	5	5	5	5	5	5	4	4	4
> 6 V to 10 V	7	6	6	6	6	6	6	5	5	5
> 10 V to 12 V	8	7	6	6	6	6	6	6	6	6
> 12 V to 20 V	8	7	7	7	7	7	7	6	6	6
> 20 V to 30 V	10	9	8	8	8	8	8	8	8	8
> 30 V to 40 V	10	9	9	9	9	9	9	8	8	8
> 40 V to 60 V	11	10	9	9	9	9	10	9	9	9
> 60 V to 100 V	11	10	10	10	10	10	10	9	9	10
> 100 V to 120 V	12	11	10	10	10	10	10	10	10	10
> 120 V to 200 V	12	11	11	11	11	11	11	10	10	11
> 200 V to 300 V	14	12	12	12	12	12	12	11	11	12
> 300 V to 400 V	14	13	12	12	12	12	12	12	12	12
> 400 V to 600 V	15	14	14	14	14	14	14	13	13	16
> 600 V to 1000 V	17	16	16	16	16	16	16	15	16	18

	Expanded Uncertainty / (μV/V)
	> 10 kHz to 20 kHz	> 20 kHz to 30 kHz	> 30 kHz to 50 kHz	> 50 kHz to 100 kHz	> 100 kHz to 200 kHz	> 200 kHz to 300 kHz	> 300 kHz to 500 kHz	> 500 kHz to 800 kHz	> 800 kHz to 1 MHz
1 mV to 2 mV	180	180	180	190	220	270	310	360	420
2 mV to < 5 mV	78	79	80	88	100	160	220	280	310
5 mV to < 10 mV	54	56	57	68	75	120	180	220	260
10 mV to < 20 mV	40	41	43	56	63	70	110	170	200
20 mV to < 30 mV	33	33	36	45	53	66	89	130	150
30 mV to < 50 mV	25	25	26	31	41	57	80	140	150
50 mV to < 100 mV	16	17	20	26	37	52	71	120	140
100 mV to < 200 mV	15	16	20	26	38	54	73	129	140
200 mV to < 300 mV	15	16	19	25	37	51	67	110	120
300 mV to < 0.5 V	15	16	19	25	37	51	67	110	120
0.5 V to < 1 V	1.6	2.2	3.0	5.2	6.8	8.3	10.6	13.8	17.6
1 V to < 2 V	1.6	2.2	3.0	5.2	6.8	8.3	10.6	13.8	17.6
2 V to < 3 V	1.6	2.1	2.8	5.0	6.8	9.2	11.6	15.8	19.5
3 V to 4 V	1.6	2.1	2.8	5.0	6.8	9.2	11.6	15.8	19.5
> 4 V to 6 V	4	5	5	8	11	15	23	30	37
> 6 V to 10 V	5	5	6	9	12	17	25	32	39
> 10 V to 12 V	6	6	6	9	13	18	26	33	40
> 12 V to 20 V	6	7	7	10	14	19	27	34	42
> 20 V to 30 V	9	11	13	17	22	28	37	-	-
> 30 V to 40 V	9	11	14	18	23	30	39	-	-
> 40 V to 60 V	10	11	14	19	25	31	-	-	-
> 60 V to 100 V	10	12	15	20	26	-	-	-	-
> 100 V to 120 V	11	12	15	21	-	-	-	-	-
> 120 V to 200 V	11	13	16	21	-	-	-	-	-
> 200 V to 300 V	12	14	17	23	-	-	-	-	-
> 300 V to 400 V	12	15	18	25	-	-	-	-	-
> 400 V to 600 V	17	22	28	39	-	-	-	-	-
> 600 V to 1000 V	20	26	36	49	-	-	-	-	-

Current shunts

Phase displacement

Comparison with a primary realisation; Comparison with a reference standard

Capability

-0.1 rad to 0.1 rad
Current 0.01 A to 100 A
Frequency 40 Hz to 200 kHz
with Calibration and Measurement Capability of -

	Expanded Uncertainty / (μrad)
	40 Hz to 1 kHz	1 kHz to 10 kHz	> 10 kHz to 20 kHz	> 20 kHz to 50 kHz	> 50 kHz to 100 kHz	> 100 kHz to 200 kHz
0.01 A to 0.5 A	3	8	16	41	81	200
> 0.5 A to 1 A	4	10	19	47	95	230
> 1 A to 2 A	4	11	21	53	110	250
> 2 A to 5 A	5	12	23	58	120	280
> 5 A to 10 A	6	13	25	63	130	300
> 10 A to 20 A	6	16	30	75	150
> 20 A to 40 A	6	18	35	86	170
> 40 A to 100 A	7	20	39	96	190

Current AC-DC difference; Resistance; Voltage AC-DC difference

Comparison with a primary realisation; Comparison with a reference standard

Capability

Resistance 0.0001 Ω to 1000 Ω
Current 0.1 mA to 100 A
Frequency 10 Hz to 200 kHz
with Calibration and Measurement Capability of -

	Expanded Uncertainty / (μΩ/Ω)
	10 Hz to < 20 Hz	20 Hz to < 30 Hz	30 Hz to < 40 Hz	40 Hz to < 57 Hz	57 Hz to < 100 Hz	100 Hz to < 400 Hz	400 Hz to < 1 kHz	1 kHz
0.1 mA to < 1 mA	99	52	40	36	36	36	44	51
1 mA to < 10 mA	99	52	39	35	34	34	39	41
10 mA to < 30 mA	6	5	5	4	4	4	4	4
30 mA to < 50 mA	8	6	5	4	4	4	4	4
50 mA to < 100 mA	9	7	5	4	4	4	4	4
100 mA	9	7	6	5	4	4	4	4
> 100 mA to 400 mA	10	8	6	5	5	5	4	4
> 400 mA to 1.5 A	11	8	6	5	5	5	5	5
> 1.5 A to 5 A	11	9	7	5	5	5	5	5
> 5 A to 20 A	14	12	11	10	10	10	10	10
> 20 A to 50 A	19	16	15	14	14	14	14	13
> 50 A to 100 A	22	18	17	16	16	15	14	14

	Expanded Uncertainty / (μΩ/Ω)
	> 1 kHz to 5 kHz	> 5 kHz to 10 kHz	> 10 kHz to 20 kHz	> 20 kHz to 30 kHz	> 30 kHz to 50 kHz	> 50 kHz to 100 kHz	> 100 kHz to 200 kHz
0.1 mA to < 1 mA	73	120	-	-	-	-	-
1 mA to < 10 mA	49	65	-	-	-	-	-
10 mA to < 30 mA	4	4	5	6	7	8	10
30 mA to < 50 mA	4	5	5	6	7	9	11
50 mA to < 100 mA	4	5	6	7	8	10	13
100 mA	4	5	6	7	9	12	17
> 100 mA to 400 mA	5	6	6	8	10	12	18
> 400 mA to 1.5 A	5	6	7	8	10	13	19
> 1.5 A to 5 A	5	6	7	9	13	21	-
> 5 A to 20 A	10	14	16	21	26	32	-
> 20 A to 50 A	16	21	29	37	46	61	-
> 50 A to 100 A	18	26	38	52	65	84	-

Potential dividers; Voltage ratio boxes

Voltage ratio

Comparison with a primary realisation; Comparison with a reference standard

Capability

with Calibration and Measurement Capability of -

0.05 μV/V for voltage ratios from 0.01 to 0.1 at voltages from 10 V to 100 V
0.1 μV/V for voltage ratios from 0.01 to 0.1 at voltages between 100 V and 1000 V
0.2 μV/V for voltage ratios from 0.001 to 0.01 at voltages between 10 V and 1000 V

Voltage standards - E.M.F. reference devices

Voltage

Comparison with a primary realisation; Comparison with a reference standard

Capability

at 1 V, 1.018 V and 10 V
with Calibration and Measurement Capability of -

	Expanded Uncertainty / (nV/V)
1 V	40
1.018 V	40
10 V	20

Magnetism - Magnetic instruments and equipment

Flux density meters

Magnetic flux density

Direct measurement against a reference standard

Capability

with Calibration and Measurement Capability of -

0 to 2 T on DC
0.02 µT + 1.5 % from 0 to 0.005 T at 50 Hz and 60 Hz (AC)

Transverse Probes, Reference Magnets (DC)

with Calibration and Measurement Capability of -

Magnetic Flux Density (T)	Expanded Uncertainty
0 to < 0.05 0.05 to 2	0.1 μT + 0.5 % 0.15 %

Axial Probes (DC)

with Calibration and Measurement Capability of -

Magnetic Flux Density (T)	Expanded Uncertainty
0 to 0.095	0.1 μT + 0.5 %

Flux meters

Magnetic flux

Direct measurement against a reference standard

Capability

with Calibration and Measurement Capability of -

1% from 10 μWb to 10 mWb

Helmholtz coils; Magnets; Solenoids

Magnetic field strength

Direct measurement against a reference standard

Capability

with Calibration and Measurement Capability of -

0.1 µT + 0.3 % from 0 T to 2 T

Time and frequency metrology - Frequency, time and waveform measuring equipment

Clocks and timers; Counters; Distortion analysers; Electrical power calibrators; Frequency analysers; Frequency meters; Oscilloscopes; Power analysers; Time interval meters

Attenuation; Current; Current harmonics; Distortion; Frequency; Phase angle; Voltage; Voltage flicker; Voltage harmonics

Measurement against reference standard

Capability

with Calibration and Measurement Capability of -

Distortion

Voltage and current harmonic amplitude and total harmonic distortion up to 99ᵗʰ harmonic, for harmonic amplitudes of 5 % to 40 % of fundamental voltage or current
from 0.01 V to 240 V, 0.005 A to 20 A and 47 Hz to 63 Hz

Fundamental Voltage / Current	Harmonic Number	Expanded Uncertainty (% of fundamental)	Reference Standard
0.01 V to 240 V	1 to 39	0.001	Josephson Arbitraty Wavefom Synthesizer
1 V to 240 V	1 to 99	0.005	Digital Sampling Voltmeter
0.005 A to 20 A	1 to 99	0.005	Digital Sampling Voltmeter

Voltage Harmonics (Meter and Source) up to 39ᵗʰ, phase, from 1 V to 240 V and 47 Hz to 63 Hz

Distortion	Expanded Uncertainty (degrees)
	Harmonic Number
	1 - 9	11 - 19	21 - 39
5 % to < 10 %	0.0016	0.0021	0.0099
10 % to < 20 %	0.0014	0.0019	0.0097
20 % to < 30 %	0.0012	0.0018	0.0095
30 % to < 40 %	0.0011	0.0018	0.0094

Current Harmonics (Meter and Source) up to 39ᵗʰ, phase, from 0.005 A to 20 A and 47 Hz to 63 Hz

Distortion	Expanded Uncertainty (degrees)
	Harmonic Number
	1 - 9	11 - 19	21 - 39
5 % to < 10 %	0.0026	0.0031	0.0109
10 % to < 20 %	0.0024	0.0029	0.0107
20 % to < 30 %	0.0022	0.0028	0.0105
30 % to < 40 %	0.0021	0.0028	0.0104

Flicker Meters
0.01% of fundamental for Voltage Flicker from 1 V to 240 V and 47 Hz to 53 Hz

Phasor Measurement Units
0.007 % for Total Vector Error from 1 V to 240 V and 47 Hz to 53 Hz
0.007 % for Total Vector Error, 0.005 A to 20 A and 47 Hz to 53 Hz
0.0022 º for phase angle from 0 º to 90 º, 1 V to 240 V, 0.005 A to 20 A and 47 Hz to 53 Hz
0.0034 % for frequency from 47 Hz to 53 Hz, 1 V to 240 V
0.0016 Hz/s for rate of change of frequency from -5 Hz/s to 5 Hz/s, 47 Hz to 53 Hz and 1 V to 240 V

Phase Sources, Phase Standards, Power Calibrators
from -180 º to 180 º, 0.01 V to 1000 V, 0.005 A to 200 A and 40 Hz to 1000 Hz

Frequency	Expanded Uncertainty
(Hz)	(Degrees)
40 to 60	0.0005
> 60 to 400	0.001
> 400 to 1000	0.002

Phase Meters, Power Analysers

Frequency	Expanded Uncertainty
(Hz)	(Degrees)
40 to 60	0.0005
> 60 to 400	0.001
> 400 to 1000	0.002

The only data displayed is that deemed relevant and necessary for the clear description of the activities and services covered by the scope of accreditation.

Grey text appearing in a SoA is additional freetext providing further refinement or information on the data in the preceding line entry.

Low Frequency Standards, Lindfield

Scope of Accreditation

ISO/IEC 17025 (2017)

Benefits of being a NATA accredited organisation