Introduction and Specifications
I
SPECIFICATIONS
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Table
1-1.
Specifications (cont)
TEMPERATURE COEFFICIENT
............
+(%
of Reading
+
Number of Counts) per "C, 0°C to 18°C
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and 28°C to 50°C.
FOR FREQUENCY IN
HERTZ
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INPUTS
20
-20K 20K-50K 50K
-
100K
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21 0,000 counts 0.019
+
9
0.021
+
9 0.027
+
10
21 ,000 counts
0.019 +12 0.021
+
15 0.027
+
21
L
COMMON MODE REJECTION
..............
>60 dB at 50 or
60
Hz with 1 kQ in either lead.
CURRENT
Input Characteristic
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RANGE FULL SCALE RESOLUTION
1
5%
DIGITS
5%
DIGITS
4%
DIGITS*
i.
2000 mA 1999.99 mA 10
PA
100
pA
-
*4% digits at the fastest reading rate.
DC Current Accuracy
NORMAL (S) READING RATE
................
+(%
of Reading
+
Number of Counts).'
L
90
DAYS
23
+
5°C
1
YEAR
23
+
5°C
1
L
I1A 0.04
+
4 0.05
+
4
>1A 0.1 +4 0.1
+
4
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MEDIUM AND FAST READING RATES..Jn medium reading rate, add
2
counts to number of
counts. In fast reading rate, use 2 counts for number of
counts.
'
When in fast reading rate with internal trigger and transmitting data out of the IEEE-488 interface,
the 8840A display must be blanked (command Dl) ot ensure stated accuracy.
AC Current Accuracy (Option
-09)
NORMAL (S) READING RATE
................
+(%
of Reading
+
Number of Counts).'
1 Year, 23
k
5"C, for sinewave inputs 210,000 counp
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FREQUENCY IN
HERTZ
20 -45
45
-
100
100
-
5K*
2.0
+
200** 0.5
+
200** 0.4
+
200**
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*
Typically 20 kHz
**
Add 100 counts for sinewave inputs between 1000 and 10,000 counts.
When in fast reading rate with internal trigger and transmitting data out of the IEEE-488 interface,
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