ESI / Tegam PRT-73 Programmable Ratio Transformer PRT73, front/rear terminals

Description

Standard Description
Description
ESI / Tegam PRT-73 Programmable Ratio Transformer with front & rear terminals
The Tegam ESI PRT-73 Automated Precision Ratio Transformer meets or exceeds all of the requirements for a calibration standard in precision measurement applications. It is easily integrated into systems for either automated or manual calibration of ratio dividers, transformer standards, synchro/resolver standards, transformers, calibrators, and voltmeters. The PRT-73 is fully programmable via a standard IEEE-488 interface. Storing calibration procedures in the system controller increases the repeatability of measurements.
This seven decade AC voltage divider gives 0.1 ppm resolution for ratio settings from -0.0010000 to 1.0009999, and terminal linearity of 0.9 ppm. It performs over a wide range of frequencies from 50 Hz to 20 kHz with maximum input voltage of 0.35 V/Hz up to 350 V.
Specifications
Linearity Error (3-Terminal)
0.35 V/Hz Range:
50 Hz to 1.0 kHz:  ±0.9 ppm for settings 0.1 to 1.0000999
Linearity errors are given in parts per million (ppm) of input. Verification of linearity errors is traceable to N.I.S.T. uncertainty of 0.5 ppm of input.
Number of Decades
0.35 V/Hz Range:  Seven
Resolution
0.35 V/Hz Range:  0.1 ppm of input.
Range
0.35 V/Hz Range:
-0.0010000 to +1.0009999
Frequency Range
50 Hz to 20 kHz standard range.
Maximum Input Voltage
0.35 V RMS/Hz, 350 V maximum.
Input Impedance
0.35 V/Hz Range:
> 40 kΩ, 50 Hz to 1 kHz.
Above 100 Hz:
100 kΩ decreasing with frequency Applies for inputs > 10 V RMS.
Datasheet available http://www.nousnexus.com/Manuals/Tegam_PRT-73_DS.pdf
The item is in good condition, tested and working.
Shipping Weight (lbs.):
39
Shipping Dimensions (in.):
25 x 25 x 13
Location: 19