4015 AC Preamp Xl Zero.
4016 AC Preamp X3 Zero.
4017 AC 1 V Gain, DC Pos.
4018 AC IV Gain, DC Neg.
4019 AC Preamp X3 Gain.
4026 AC HF Path Detect.
4037 WB DAC +ve Zero.
4038 WB DAC -ve Zero.
4039 WB DAC +ve Full Scl.
4040 WB DAC -ve Full Scl.
4043 WB DC Switch -ve.
4044 WB DC Switch -ve.
4045 WB TTU DC 3.5V.
4046 WB TTU DC l.OV.
4047 WB TTU DC OV.
4048 WB TTU AC OV.
The 4920 from Wavetek/Datron is a very high performance, bench top alternating voltage measurement standard. It is a direct reading, fully automated measurement instrument with low uncertainties. It covers a range from 90mV to 1100V and a frequency range of 10Hz to 1MHz. A milivolt amplifier option is available for the 4920 to extend voltage measurement down to 900uV. A wideband voltage option is also available for the 4920 with coverage to 50MHz.
Misapplication of voltage - The 4920 can be damaged when voltages greater than 3.5V RMS are applied to the wideband inputs or when greater than 30V is applied to the mV input.
Age - Very old instruments can suffer from age related failures caused by normal deterioration of components and assemblies over time.
Power up the 4920. The instrument runs through the full self test automatically. If a failure occurs, note the error number/description and contact us. There are often multiple errors. Report as many as you reasonably can.