TB 9-6625-133-40
CTUAL - NOMINAL
,
ERROR ppm = A
,
(7) Calculate TI error using the formula below.
NOMINAL
Where:
NOMINAL = true applied voltage
ACTUAL = TI indication
(8) TI will indicate within the limits of table 4. If not, perform b below.
(9) Repeat technique of (5) through (8) above for remaining rows in table 4. Apply
voltage as appropriate for range calibrated. TI will indicate within the limits of table 4. If
not, perform b below.
(10) Set calibrator output to minimum and disconnect equipment set-up.
b. Adjustments. Complete all performance checks in the entire procedure noting AS
FOUND failures. Use paragraph 15 b for adjustments.
10. AC Voltage
a. Performance Check
NOTE
The cable/adapters used during characterization MUST be
used during performance checks and adjustments.
(1) Prepare TI for zeroing by connecting the Fluke high-integrity low-thermal emf
4-wire shorting PCB to the TI input terminals.
(2) Press TI keys as listed in (a) through (i) below.
(a)
CLEAR
(b)
[PWR UP DFLT]
(c)
ACV
(d)
CONFIG
(e)
[TFER] (TFER selected)
(f)
[RESL] , [6]
(g)
ACV
(h)
INPUT
(i)
[ZERO FUNC] (zero is complete when the BUSY legend goes out)
(3) Remove the Fluke high-integrity low-thermal emf 4-wire shorting PCB from the
TI input terminals.
(4) Populate table 5 true applied column with the values obtained during ACV
characterization (table A-3).
(5) Connect calibrator OUTPUT HI / LO to TI INPUT HI / LO.
(6) Set TI range and filter to the first settings in table 5. Filter settings are under
the CONFIG menu.
(7) Set calibrator to the first displayed output/frequency settings in table 5, output
to OPR.
