From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Instructions to add an insulation test to the specification for a standard chassis ammeter, type MR no 155254.
| Identifier | ExFiles\Box 168\5\ img134 | |
| Date | 10th August 1928 | |
| INSTRUCTIONS. To: E.4.6. Order No. I.C.116. Customer's No. Re: Test of Specification on a Std chassis ammeter Type MR no 155254. A Specification of inspection & test for the chassis ammeter was checked with a std ammeter, to see if it was satisfactory. The ammeter passed the specified tests in every respect. The following paragraph should be added & then the Specification can be considered complete. The instrument should be tested (through a voltmeter), to ensure that the terminals are insulated from the case, & also that the zero connector is entirely insulated. Signed: g.f. This Sheet must be filed on completion of the work. | ||