HP 3458A - Resistance Calibration

i
T .O . 33K8-4-551-1
4 .2 .8 Connect the TI Input HI and LO terminals to the C2 and CI leads on any open Rx channel of the Resistance
Measurement System.
4 .2 .9 Connect the TI fl Sense HI and LO terminals to the P2 and P1 leads on the same open Rx channel of the
Resistance Measurement System.
4 .2 .10 If the DMM Switch is available, set the DMM Switch to the DMM (source) position.
4 .2 .11 Select the Low Thermal Quad Scanner (P/O 2 .7) channel switch corresponding to the open Rx channel
connected to the TI in steps 4 .2 .8 and 4 .2 .9.
4 .2 .12 Select the Low Thermal Quad Scanner (P/O 2 .7) channel switch corresponding to the first Standard Resistor
value of the Applied column of Table 5.
4 .2 .13 The TI display must indicate within the corresponding values listed in the Limits column of Table 5.
4 .2 .14 Manually select the next TI range value listed in the Range column of Table 5, if applicable.
4 .2 .15 Repeat steps 4 .2 .11 through 4 .2 .14 for each remaining value listed in the Range and Applied columns of
Table 5.
Table S.
Range (S2) Applied (SI)
Limits (ppm of rdg)
10 10 AFPSL Cert Value ±20 .15
100 100 AFPSL Cert Value ±17 .19
1 k 1 k AFPSL Cert Value ±10 .73
10 k 10 k AFPSL Cert Value ±10
.72
100 k 100 k
AFPSL Cert Value ±10 .78
1 M * 1 M AFPSL Cert Value ±18 .16
10 M 10 M
AFPSL Cert Value ±61 .42
* Remove the TI 1 s delay setting and press Offset Comp (S2) switch to OFF.
4 .2 .16 If the DMM Switch is available, set the DMM Switch to the Bridge (measure) position.
4 .2 .17 Disconnect the test setup.
4 .2 .18 Connect the TI Input and fl Sense HI terminals to the A terminal and the TI Input and Q Sense LO terminals to
the B terminal of the Resistance Standard (2 .11) .
NOTE
Grounding/Shielding/Guarding variations between the TI and Resistance Standard
may be required to obtain a stable and accurate TI indication.
1 4 .2 .19 Set the Resistance Standard (2 .11) switches for 100 MS2.
4 .2 .20 Manually select the first TI range listed in the Range column of Table 6.
22