Portable Calibrator 515A

The Fluke Model 515A enables the field checking and/or calibration of the dc voltage, ac voltage and resistance ranges of high accuracy voltmeters and multimeters.The model 515A provides standards for dc voltage,ac voltage and resistance which maintain the basic accuracy over the temperature range of 23°C +/- 5°C.Self contained NiCa batteries permit operation at sites remote from ac power,and also permit operating temperature of the unit to be maintained while in transit.Up to eight hours of battery operation is available from a single charge.

DC voltage outputs are selectable in the ranges of 0-999 microvolts(continuous),100 millivolts to 1 volt in 100 mV steps,1V to 10 V in 1 volt steps, and 100 V.

AC voltages are selectable 1,10 and 100 Vrms at 400Hz,10Vrms at 4kHz,and 10Vrms at 50kHz.Resistance is selectable at zero,10,100,1K,10K,100K,1M and 10 Mohms.All pushbutton selection switches are mechanically interlocked so that only a single function can be selected.

Power source switching within the calibrator permits the unit to operate on 100V,115V,200V or 230V at 50Hz to 440Hz.Two 21.6V/0.45 Ah NiCa battery pack are installed for battery operation,and charged while in ac line operation.

Here you find 93 models, 88 with images and 66 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Fluke, John, Mfg. Co. Inc.; Everett (WA)