9. Now we will investigate the calibrator mode of the 473 ... but we will start off with something that does not have a reference junction ... following the operation guide for calibrator mode on pages 10 to 12 of the manual, set up the calibrator with the correct key strokes so that mV can be produced by the 473 (i.e. setting up the 473 to be a simple mV source rather than a compensated calibrator).
Note, in the operation guide for calibrator mode, the manufacturer has NOT stated how to ensure that the 473 is in calibrator mode ... please read step two of the operation guide for indicator mode, and do the opposite of what is stated ... this will set the 473 to calibrator mode ... please read carefully!
Set up the 473 such that the LO output is 5.24 mV as indicated by the 473 display, and the HI output is 36.9 mV as indicated by the 473 display.
Pay attention to the resolution!
Note, LO and HI are normally used to store values that represent the LRV and URV of an measurement device .... this way, when calibrating using the 473, all that needs to be done is pushing of the LO/HI key to switch between the LRV and URV signal values
We will use the Fluke 8060A DMM to measure the mV signals being generated by the 473. Make connections between the Fluke DMM and the 473 as follows:
Note, set up the Fluke 8060A DMM to measure DC volts on the 200 mV range.
10. Switch the output of the 473 between LO and HI, this time recording the mV as measured and displayed by the Fluke DMM. Record in table 5.