TEST-750 Single Phase Relay Tester
The TEST-750 is a single phase microcomputer relay test set. The manufacturer's category page lists 0 to 150A and 0 to 300V, capacity 1000VA, over-voltage and over-current tests, accuracy class 0.2%, and a high-precision stopwatch.
The image on this page is a category illustration from the manufacturer's homepage, not a photograph of the TEST-750. No photograph of this model is shown here, because the reference material behind this site does not tie a downloaded photograph to this model.
Item and specification
| Use | Single phase microcomputer relay test set |
|---|---|
| Range | 0-150A / 0-300V |
| Capacity | 1000VA |
| Tests | Over-voltage and over-current |
| Accuracy class | 0.2% |
| Other | High-precision stopwatch |
How to select
A single-phase set suits simple relay checks where only one current and one voltage output are needed at a time, such as overcurrent timing tests. It does not cover multi-output distance or differential tests; for those, a three-phase or six-phase set from the same family is the right comparison.
Before payment, confirm the model, the ranges, the accuracy class, the quantity, and the delivery terms. Ask for the current datasheet to be confirmed in writing before ordering. No price, minimum order or lead time figure is stated here; confirm each in writing with your inquiry.
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 is stated on this page, because the reference material does not give a company-site warranty figure for this model.
Figures on this page come from the manufacturer's own category pages, manufacturer-hosted datasheets, or a shop listing stated as such. Where the reference material does not settle a figure, this site states that it is unresolved and publishes no figure, rather than choosing one.
Send an inquiry: include the model, the test or measurement requirement, and the quantity you need. Before payment, confirm the model, the specification from the current datasheet, the quantity, and the delivery terms.