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Introduction and Specifications
SPECIFICATIONS
1
1-9
Reading Rates
READING RATES WITH INTERNAL TRIGGER (readings per second)
POWER LINE FREQUECNCY
1
RATE
50 Hz 60 Hz 400 Hz
S 2.08 (.26)
2
2.5 (.31)
2
2.38 (.30)
2
M 16.7 (1.04)
2
20 (1.25)
2
19.0 (1.19)
2
F 100 100 100
1. Sensed automatically at power-up.
2. In 20 mV, 20 ohm, and 200 mA DC ranges.
AUTORANGING
The 8842A autoranges up to the highest ranges in all funtions, down to the 200 mV range in the VDC
and VAC funtions, and down to the 200 Ω ranges in the ohms funtions. To select the 20 mV dc, 20Ω, or
200 mA dc range, press the respective range button (or send the respective range command, if using
the IEEE-488 option).
AUTOMATIC SETTLING TIME DELAY
Time in milliseconds from single trigger to start of A/D conversion, Autorange off.
READING RATE
FUNCTION RANGE
SMF
NUMBER OF COUNTS
FROM FINAL VALUE
1
VDC 20 mV 342 342 9 30
200 mV 342 61 9 5
2V-1000V 342 17 9 9
VAC All 551 551 551 30 (Note 2)
MA DC 200 mA 342 342 9 9
2000 mA 342 17 9 5
MA AC 2000 mA 551 551 551 30 (Note 2)
Ohms 20Ω 395 395 17 40
200Ω 395 106 17 5
2 kΩ 322 17 13 5
20 kΩ 342 17 13 5
200 kΩ 141 121 21 5
2000 kΩ 141 101 81 10
20 MΩ 1020 964 723 10
1. Difference between first reading and final value for an in-range step change coincident with trigger.
For slow reading rate. 50 counts for medium rate; 10 counts for fast rate.