Unitest Instruments, SAC-SINGLAS accredited calibration laboratory
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SAC-SINGLAS Accredited · ISO/IEC 17025

Clamp Meter Calibration in Singapore

Unitest calibrates clamp meters in Singapore, including Fluke, across DC clamp current 0 mA to 1500 A and AC clamp current 10 mA to 1500 A, under SAC-SINGLAS accreditation LA-2023-0845-C (ISO/IEC 17025). Standard turnaround is 5–7 working days; express service is 2–3 days, with free collection and delivery in Singapore for orders above $300.

Also known as: Digital Clamp Meter · Current Clamp · Clamp-On Ammeter

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Why calibrate?

Unitest provides SAC-SINGLAS accredited clamp meter calibration in Singapore for AC/DC current (up to 1500 A), AC/DC voltage and leakage current, with traceable ISO/IEC 17025 certificates. The jaw mechanism can shift over time. Calibration confirms the clamped current reading is accurate.

What you receive

What clamp meter calibration at Unitest covers

Traceable certificate

Calibration certificate with an unbroken traceability chain to national and international standards, recording the as-found condition before any adjustment.

Stated uncertainty

Results reported with measurement uncertainty, so you know exactly how much confidence each reading carries in your quality system.

5–7 day turnaround

Standard turnaround 5–7 working days; express 2–3 working days on request. Free collection and delivery within Singapore for orders above S$300.

Part of our electrical calibration service, accredited under SAC-SINGLAS LA-2023-0845-C.

How often

How often should a clamp meter be calibrated?

Clamp meters used in electrical installation or maintenance testing should be calibrated every 12 months. If the jaw is dropped, send it in sooner.

Accredited ranges

Clamp Meter calibration ranges & measurement uncertainty

The parameters, ranges and calibration & measurement capability (CMC) below are taken from our SAC-SINGLAS Schedule of Accreditation (LA-2023-0845-C, to ISO/IEC 17025). CMC is the smallest measurement uncertainty we can achieve under accredited conditions.

DC Current Clamp measuring instruments· UNI-E002 Rev:0
Range / measured quantityMeasurement uncertainty (CMC)
0 mA – 20 mA0.14 mA
20 mA – 100 mA0.72 %
0.1 A – 4 A1.0 %
>4 A – 40 A0.7 %
>40 A – 60 A0.67 %
>60 A – 200 A0.67 %
>200 A – 300 A0.67 %
>300 A – 1500A0.67 %
AC Current clamp measuring instrument· UNI-E002 Rev:0
Range / measured quantityMeasurement uncertainty (CMC)
10 mA – 40 mA (30 Hz – 200 Hz)0.76 %
40 mA – 400 mA (30 Hz – 200 Hz)0.70 %
0.4 A – 4 A (30 Hz – 200 Hz)0.67 %
>4 A – 40 A (30 Hz – 200 Hz)0.68 %
>40 A – 60 A (30 Hz – 200 Hz)0.72 %
>60 A – 200 A (30 Hz – 200 Hz)0.69 %
>200 A – 300 A (30 Hz – 200 Hz)0.68 %
>300 A – 1500A (30 Hz – 60 Hz)0.67 %
DC Voltage measuring instrument· UNI-E001 Rev:1
Range / measured quantityMeasurement uncertainty (CMC)
0 mV – 220 mV0.0022 mV
>220 mV – 2.2 V0.012 mV
>2.2 V – 11 V0.043 mV
>11 V – 22 V0.084 mV
>22 V – 220 V0.0012 V
>220 V – 1020 V0.0079 V
AC Voltage measuring instruments· UNI-E001 Rev:1
Range / measured quantityMeasurement uncertainty (CMC)
1 mV – 2.2 mV, 3 Hz to 5 Hz1.6 %
1 mV – 2.2 mV, >5 Hz to 10 Hz1.0 %
1 mV – 2.2 mV, >10 Hz to 20 Hz0.0046 mV
1 mV – 2.2 mV, >20 Hz to 40 Hz0.0043 mV
1 mV – 2.2 mV, >40 Hz to 20 kHz0.0043 mV
1 mV – 2.2 mV, >20 kHz to 50 kHz0.0046 mV
1 mV – 2.2 mV, >50 kHz to 100 kHz0.0062 mV
1 mV – 2.2 mV, >100 kHz to 300 kHz0.02 mV
1 mV – 2.2 mV, >300 kHz to 500 kHz0.03 mV
1 mV – 2.2 mV, >500 kHz to 1 MHz0.03 mV
2.2 mV to 22 mV, 3 Hz to 5 Hz0.32 %
2.2 mV to 22 mV, >5 Hz to 10 Hz0.17 %
2.2 mV to 22 mV, >10 Hz to 20 Hz0.01 mV
2.2 mV to 22 mV, >20 Hz to 40 Hz0.01 mV
2.2 mV to 22 mV, >40 Hz to 20 kHz0.006 mV
2.2 mV to 22 mV, >20 kHz to 50 kHz0.009 mV
2.2 mV to 22 mV, >50 kHz to 100 kHz0.02 mV
2.2 mV to 22 mV, >100 kHz to 300 kHz0.04 mV
2.2 mV to 22 mV, >300 kHz to 500 kHz0.06 mV
2.2 mV to 22 mV, >500 kHz to 1 MHz0.081 mV
22 mV to 220 mV, 3 Hz to 5 Hz0.42 %
22 mV to 220 mV, >5 Hz to 10 Hz0.15 %
22 mV to 220 mV, >10 Hz to 20 Hz0.066 mV
22 mV to 220 mV, >20 Hz to 40 Hz0.028 mV
22 mV to 220 mV, >40 Hz to 20 kHz0.021 mV
22 mV to 220 mV, >20 kHz to 50 kHz0.035 mV
22 mV to 220 mV, >50 kHz to 100 kHz0.086 mV
22 mV to 220 mV, >100 kHz to 300 kHz0.17 mV
22 mV to 220 mV, >300 kHz to 500 kHz0.34 mV
22 mV to 220 mV, >500 kHz to 1 MHz0.65 mV
220 mV to 2.2 V, 3 Hz to 5 Hz0.33 %
220 mV to 2.2 V, >5 Hz to 10 Hz0.5 %
220 mV to 2.2 V, >10 Hz to 20 Hz0.58 mV
220 mV to 2.2 V, >20 Hz to 40 Hz0.22 mV
220 mV to 2.2 V, >40 Hz to 20 kHz0.11 mV
220 mV to 2.2 V, >20 kHz to 50 kHz0.17 mV
220 mV to 2.2 V, >50 kHz to 100 kHz0.23 mV
220 mV to 2.2 V, >100 kHz to 300 kHz0.86 mV
220 mV to 2.2 V, >300 kHz to 500 kHz0.0025 V
220 mV to 2.2 V, >500 kHz to 1 MHz0.0042 V
2.2 V to 22 V, 3 Hz to 5 Hz0.32 %
2.2 V to 22 V, >5 Hz to 10 Hz0.50 %
2.2 V to 22 V, >10 Hz to 20 Hz0.0057 V
2.2 V to 22 V, >20 Hz to 40 Hz0.0022 V
2.2 V to 22 V, >40 Hz to 20 kHz0.0011 V
2.2 V to 22 V, >20 kHz to 50 kHz0.0016 V
2.2 V to 22 V, >50 kHz to 100 kHz0.0021 V
2.2 V to 22 V, >100 kHz to 300 kHz0.0067 V
2.2 V to 22 V, >300 kHz to 500 kHz0.025 V
2.2 V to 22 V, >500 kHz to 1 MHz0.038 V
22 V to 220 V, 3 Hz to 5 Hz0.50 %
22 V to 220 V, >5 Hz to 10 Hz0.16 %
22 V to 220 V, >10 Hz to 20 Hz0.058 V
22 V to 220 V, >20 Hz to 40 Hz0.022 V
22 V to 220 V, >40 Hz to 20 kHz0.013 V
22 V to 220 V, >20 kHz to 50 kHz0.019 V
22 V to 220 V, >50 kHz to 100 kHz0.036 V
220 V to 1020 V, 3 Hz to 5 Hz0.29 %
220 V to 1020 V, >5 Hz to 10 Hz0.12 %
220 V to 1020 V, >10 Hz to 50 Hz0.12 %
220 V to 1020 V, >50 Hz to 1 kHz0.085 V
220 V to 1020 V, >1 kHz – 10 kHz0.04 %
Download the full SINGLAS Schedule (LA-2023-0845-C), PDF

You can also verify our accreditation on the SAC-SINGLAS directory.

Brands & models

Clamp Meter brands & models we calibrate

The models customers most commonly send in, not our full capability. Every model is quoted individually; request a quotation and we'll confirm ranges, points and turnaround.

BrandModel
Fluke323
Fluke324
Fluke325
Fluke337
Fluke365
Fluke374 FC
Fluke375
Fluke376
Fluke376 FC
Fluke378 FC
Fluke381
Fluke393 FC
Fluke771
Fluke773
Flukei410

Don't see your model? Send us the make and model, or WhatsApp us a photo of the nameplate, and we'll confirm capability and quote.

Questions

Clamp Meter calibration FAQ

How often should a clamp meter be calibrated?

Clamp meters used in electrical installation or maintenance testing should be calibrated every 12 months. If the jaw is dropped, send it in sooner.

Is clamp meter calibration accredited?

Yes. Clamp Meter calibration is covered under our SAC-SINGLAS scope of accreditation (LA-2023-0845-C, ISO/IEC 17025), covering DC clamp current 0 mA to 1500 A and AC clamp current 10 mA to 1500 A. Certificates state the measured values and measurement uncertainty, traceable to national and international standards. Where an instrument falls outside the accredited ranges, we can calibrate it as a traceable service instead.

How long does clamp meter calibration take?

Standard turnaround is 5 to 7 working days; express service is 2 to 3 working days. Collection and delivery in Singapore are free for orders above $300.

Which brands of clamp meter do you calibrate?

Commonly submitted brands include Fluke. This list covers the models customers most often send in, not our full capability. Send us your make and model and we'll confirm whether it falls within our accredited scope or can be calibrated as a traceable service.

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