HP 3468A - Page 94

Table
5-3.
Specifications
(Cont'd)
2-Wire Ohms Accuracy:
Same as 4-wire ohms, except add a maximum of 100m off-
set.
Auto-Zere Off:
(5% digit) for a stable environment {+ 1°C), for <24 hrs., add
11 counts to accuracy specification for 3002 range 3 counts
for 3k@ through 300k ranges, 8 counts for 3M® range, and
33 counts for 30M®@ range.
Temperature Coefficient:
O°C to (Cal. Temp. — 5°C),(Cal. Temp. +5°C) to 55°C
5% digit display, auto-zero ON
+ (% of reading + number of counts)/°C
Input Characteristics:
Maximum
Roading Resolution
Range (5% Digit) 4% Digit
av -301000V
3v 3.01000V
30V 30.1000
300V 301.000V
Input Impedance:
1M@ + 1% shunted by <60pF
Maximum Input Voltage: (non-destructive)
Hi to Lo: 301Vrms or 450V peak
Hi or Lo to Earth Ground: + 500V peak
urement Accuracy:
+(% of reading + number of counts)
Auto-zero ON. 5% digit display. Accuracy is specified for sine-
wave inputs only, > 10% of full scale.
1 Year, Cal. Temp. +5°C
——— 3% or 4% digits: 1.4 readings/sec
__Froquoncy
5%
digits:
1.0
readings/sec
20Hz-5OHz 1.14 + 1.18 + 102
50Hz - 100Hz 0.46 + 103 | 0.6 + 102
100H2 - 20kHz 0.26 + 102 0.33 + 102
20kHz — 5OkHz 0.41 + 180 0.55 + 180
5OkHz — 100kHz a 825 | 1.26 + 825
100kHz— 300kHz
{30V range only)
OC CURRENT
Input Characteristics:
Maximum
Reading
(5%
Digit)
Range 3% Digit
+3.01000A
Maximum input: (non-destructive)
3A from <250V source; fuse protected
90
RESISTANCE
(2-wire
2,
4-wire
Q)
(Cont'd)
AC VOLTAGE (true rms responding)
Range
3002 0.0009 + 0.5
3k - 300k2 0.0009 + 0.08
3a 0.0021 + 0.05
30M@ | 021 + 0.05
Current Through Unknown:
Range: 3002 3k2 30k2 = 300k 3Mit 30MQ
Current: 1mA 1mA 100¥A 10x tz 100nA
Maximum Open Circuit Voltage:
6.5V
Maximum Reading Rates:
Same as de volts, except tor 3MM and 3OM@ ranges. For 3M
range, add 20ms; for 30MQ range, add 200ms per reading.
‘AutoZero Off:
(5% digits) for @ stable environment (+ 1°C), for <24 hrs., add 10
counts to accuracy specifications for all ranges.
Temperature Cuetticient:
O°C to (Cal. Temp. — §°C),(Cal. Temp. + 5°C) to 96°C,
5% digit display, auto-zero ON.
For frequencies <20kHz, + (0.016% of reading + 10 coumts)/°C
For frequencies > 20kHz, + (0.04% of reading + 10 counts)/°C
Crest Factor:
>4:1 at full scale
Comman Made Rejection:
With
1k@
imbalance
in
Lo
lead,
>
70d8,
de
to
6OHz
‘Maximum Reading Rates: (readings/sec)
First reading is correct within 70 counts of final value, when on
correct range, triggered coincident with step input. Add 0.6 seconds for|
each range change.
For 50 or 6OHz operation, auto-zero ON or OFF.
Measurement Accuracy:
+ (% of reading + number of counts)
Auto-zero ON. 5% digit display.
Cal, Temp. 25°C
Range 90 Days 7 Year
3A,<1A input 7+ 6
3A,> 1A input + 30