GF312D1 Three Phase Energy Meter Calibrator

The GF312D1 is a handheld three phase energy meter calibrator for on-site three-phase energy meter error testing, and it also serves as a three-phase reference energy meter in the laboratory. The manufacturer's category page describes precision 0.05% AC energy meter testing, with AC parameter and CT ratio and phase-error measurement.

Its functions include frequency, comprehensive error, three-phase and single-phase voltage, current, active, reactive and apparent power, power factor, phase angle, harmonic content of voltage and current (2nd to 64th), vector diagram and waveform display. The category headline also lists CT error testing, a smart optical sampler, four-quadrant measurement, 1P2W, 1P3W, 3P3W and 3P4W wiring modes, 1mA current measurement, and accuracy class 0.05 or 0.1.

Item and specification

How to select

Choose the GF312D1 when the work is on-site three-phase meter error testing and the tester must also measure CT ratio and phase error in the same visit. If the work is mainly laboratory bench testing of many meters, a multi-position bench from the same family may suit better; ask for both options to be quoted separately so the comparison is on the same test requirements.

Before payment, confirm the model, the accuracy class, whether clamps are included and their range, the quantity, and the delivery terms. Ask for the current datasheet to be confirmed in writing before ordering.

Records and comparisons

Keep a record for every test this instrument performs. A useful record states the instrument model, the device under test, the test settings, the results, the date, and the person who ran the test. Records of that form can be checked months later, when a result is questioned or a device is retested after repair. A record that only says pass or fail cannot be checked, and a test that cannot be checked will eventually have to be repeated.

When comparing this model with a neighbouring model from the same family, compare the same items for both: the test functions, the ranges, the accuracy class, the display and output features, and the standards referenced. A comparison that uses one model's headline figures against another model's detailed figures is not a comparison. Ask for the current datasheet for each model under consideration, and compare datasheet against datasheet.

If the instrument will be used by more than one person, agree who owns the test records and where they are kept before the first test. Shared instruments with private records produce results that cannot be checked by anyone except the person who ran the test, which defeats the purpose of keeping records at all.

What to confirm before ordering

Before payment, confirm the model, the specification from the current datasheet, the quantity, the price, the lead time, and the delivery terms, in writing. Ask in your inquiry to confirm the payment terms, the trade terms, and the reply time you should expect, rather than assuming any of them. No price, minimum order or lead time figure is stated on this site.

Notes

No warranty period, price, minimum order or lead time figure is stated on this page, because the reference material does not give a company-site figure for them. Confirm each in writing with your inquiry.