HP 3457A - Page 13

General Information 3457A
Table 1-1. Specifications @
DC CURRENT (Cont’d)
90 DAY: Tcal + 5°C After one hour warm-up.
RANGE | % READING NUMBER OF COUNTS
100 PLC* 10 PLC* Vv PLe® «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
104 104 11S 14
104 104 115 14
104 104 115 14
204 204 215 24
604 604 615 64
1 YEAR: Teal + 5°C After one hour warm-up.
RANGE |% READING NUMBER OF COUNTS
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
0.04 104 104 115 14
0.04 104 104 115 14
0.04 104 104 115 14
0.08 204 204 215 24
0.08 604 604 615 64
PLC = Integration Time in Power Line Cycles. When using integration times of 100 PLC, 10 PLC,
or 1PLC; multiply Number of Counts in the Measurement Accuracy Tables by 0.1 for 5 1/2 digit
readings, 0.01 for 4 1/2 digit readings and 0.001 for 3 1/2 digit readings.
Tcal = the temperature of the environment where the 3457A was calibrated. Calibration should
be performed with the environment temperature between 18 and 28 degrees centigrade.
TEMPERATURE COEFFICIENT: +(% of Reading + Number of Counts)/°C
6 1/2 Digits Displayed
RANGE | Auto-Zero ON Auto-Zero OFF*
300 uA 002 + 20 -002 + 30
3 mA -002 + 20 -002 + 30
30 mA 002 + 20 -002 + 30
300 mA 007 + 20 -007 + 30
1A 007 + 20 007 + 30
* Specifications given are for a stable environment (+ 1°C) and over a ten minute period.
Multiply Number of Counts by 0.1 for 5 1/2 digit readings, 0.01 for 4 1/2 digit
readings and 0.001 for 3 1/2 digit readings.