HP 3457A Service Manual page 15

General Information 3457A
Table 1-1. Specifications
RESISTANCE (Cont'd)
MEASUREMENT ACCURACY - FOUR-WIRE OHMS: +(% of reading + Number of Counts)
Auto-zero ON.
24 HOUR: Tcal + 1°C
After two hour warm-up. Accuracy relative to calibration standard.
RANGE | % READING NUMBER OF COUNTS
(OHMS) 100 PLC* 10 PLC* 1 PLC +1 PLO* -005 pLc* | .0005 PLC*
6 1/2 digits|6 1/2 digits|6 1/2 digits|5 1/2 digits|4 1/2 digits|3 1/2 digits
30 -003 215 235 350
+0015 24 35
3 +001 5 6
30 -001 5 6
300 +001 6 7 8
3 +003 12 16
30 02 80 93
90 DAY: Teal + 5°c
After one hour warm-up.
RANGE | % READING NUMBER OF COUNTS
(OHMS) 100 PLC* 10 PLC* 1 PLC* -1 PLC* +005 PLC* -0005 PLC*
6 1/2 digits|6 1/2 digits|6 1/2 digits|5 1/2 digits|4 1/2 digits]3 1/2 digits
0.0065 315 335 450 65
0.0045 35 45
0035 7 rs
. 0035 7 7
004 8 9
.0055 14 16
025 83 93
YEAR: Teal + 5°C
After one hour warm-up.
RANGE | % READING NUMBER OF COUNTS
(OHMS) 100 PLC* 10 PLC* 1 PLC* «1 PLC* +005 PLC* -0005 PLC*
6 1/2 digits]6 1/2 digits|6 1/2 digits|5 1/2 digits|4 1/2 digits]3 1/2 digits
315 335 450
34 35 45
6 7 3
6 if 7
f 8 9
12 14 16
80 83 93