Frequency and Period Characteristics
Frequency and Period Characteristics
Accuracy Specifications ± ( % of reading ) [ 1 ]
Function Range
[ 3 ] Frequency
24 Hour
[ 2 ]
23°C ± 1°C
1 Year
23°C ± 5°C
Temperature
Coefficient/°C
0°C – 18°C
28°C – 55°C
Frequency,
Period [ 4 ]
100 mV
to
750 V
3 Hz – 5 Hz
5 Hz – 10 Hz
10 Hz – 40 Hz
40 Hz – 300 kHz
0.10
0.05
0.03
0.006
0.10
0.05
0.03
0.01
0.10
0.05
0.03
0.01
0.005
0.005
0.001
0.001
Additional Low-Frequency Errors ( % of reading )
[ 4 ]
Frequency
Resolution
6
1
⁄
2
5
1
⁄
2
4
1
⁄
2
0 0.12 0.12
0 0.17 0.17
0 0.2 0.2
0 0.06 0.21
0 0.03 0.21
0 0.01 0.07
0 0 0.02
3 Hz – 5 Hz
5 Hz – 10 Hz
10 Hz – 40 Hz
40 Hz – 100 Hz
100 Hz – 300 Hz
300 Hz – 1 kHz
> 1 kHz
Transfer Accuracy ( typical )
0.0005% of reading Conditions:
Within 10 minutes and ± 0.5°C.
Within ±10% of initial value.
Following a 2-hour warm-up.
For inputs > 1 kHz and > 100 mV.
Using 6
1
⁄
2
digit slow resolution ( 1 second gate time ).
Measurements are made using accepted metrology practices.
90 Day
23°C
± 5°C
Chapter 8 Specifications
220
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