HP 3468A - Page 93

Table
5-3.
Specifications
=
DC VOLTAGE
Input
Characteristics:
Temperature
Coefficient:
Maximum
0°C
to
(Cal.
Temp.
—
5°C),(Cal.
Temp.
+§°C)
to
85°C
Reading
5%
digit
display,
auto-zero
ON
(5%
Digit)
+
(%
of
reading
+
number
of
counts}/°C
Range Temperature Coefficient
+,301000V
+3.01000V Imv
+ 30.1000 10mv .3V, 30V 0.0008 + .5
+ 301.000V 100mV 3V, 300V 0.0007 + .05
Input Resistance: Noise Rejection:
.3V, 3V ranges: > 1070 In dB, with 1k@ imbalance in Lo lead. AC rejection for 50,
30V, 300V ranges: 10M@2 + 1% 60Hz + 0.1%. Auto-zero ON.
Maximum Input Voltage; (non-destructive)
Hi to Lo: 301 Vrms or 450V peak
Hi or Lo to Earth Ground: + 500V peak 5% digits
4% digits 140
Measurement Accuracy: 3% digits 140
+ (% of reading + number of counts) i :
Bue eert Maximum Reading Rates: (readings/sec)
First reading is correct within .1 count of final value, when on
5% Digit Made: correct range, triggered coincident with step input.
| Cal, Temp = __Cal. Temp. The reading rates are dependent on the speed of the controller
Range | 24 Hours 0 being used.
.3V | 0,005 +4 | 0.009 +5 Line Auto Resok :
| 3V | 0.0035 +2 | 0.007 + 2 Frequonce | Zero | 3% Digits | 4% Digits | 5% Digits
30V
|
0.005
+3
|
0.009
+
3
——
+—
4
| 300v | 0.0055 +2 | 0.009 + 2 oft 32 ai
60Hz On 25 2
4% and 3% Digit Made:
. o# | 32 3.4
Accuracy is the same as 5% digit mode for % of reading; use 5OHz On 25 V7
1 count for number of counts.
Maxiinum Reading Rate with 41C¥:
The Cal. Temp. (Calibration Temperature) is the temperature -s
of the environment where the 3468A was calibrated. Cali- 2 readings/eec
bration should be performed with the temperature of the ,
environment
between
20°C
and
30°C.
Display
Rate:
(readings/sec)
uses Gi For 50 or 60 Hz operation
6% Digi 4% or 3% Digits
(5% digit) for a stable environment (+ 1°C), for <24 hrs., add
11 counts to accuracy specification for .3V and 30V ranges,
3 counts for 3V and 300V ranges. For 4% or 3% digits,
multiply counts by 0.1.
Auto Zero off 4
Auto Zero On 2
RESISTANCE (2-wire @, 4-wire 2)
Input
Characteristics:
Measurement
Accuracy:
Maximum
+(%
of
reading
+
number
of
counts)
Reading
Auto-zero ON. 4-wire ohms.
(5%
Digit)
5% Digit
300
@
|
301.000
9
1me@
100ma
5%
Digit
Mode:
3k@ | 3.01000
ke
10mg
19
30
k@
|
30.1000
ka
100m2
10
9
Cal.
Temp
+
1°C
Cal.
Temp.
25°C
300 k2 | 301.000
ko
19
100
9
Range
24 Hours
‘30 Day
|__1 Year
3ma | 3.01000Ma
10 9
1ko
30ma
| 30.1000Ma
100
9
10 ka
3002
0.0048
+ 5 | 0.012
+ 64)
0.01745
3k-300kK@2
| 0.00@5+2
| 0.011+2
| 0.016
+2
Input
Protection:
(non-destructive)
3ma
0.005@+
2
|
0.011+2
|
0.016+2
30ma
0.036
+2 | 0.066+2
| 0.078
+2
Hi source to Lo source: + 350V peak
Hi sense to Lo sense: + 350V peak
Hi or Lo to Earth Ground: +500V peak _
89