RS PRO RSDM-9060, User Manual

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only. Due to power factor resulting in temperature rise, 2 mA increment per
one ampere when input is greater than 5 A rms.
Frequency and Period Characteristics
Frequency Period
[1] [2]
Range Frequency
24 Hour
TCAL ± 1˚C 90 Day
TCAL ± 5˚C 1 Year
TCAL ± 5˚C
Temperature
Coefficient/˚C
100 mV~
750 V
[3]
3 Hz – 5 Hz 0.100 0.100 0.100 0.100
5 Hz – 10 Hz 0.050 0.050 0.050 0.035
10 Hz – 40 Hz 0.030 0.030 0.030 0.015
40 Hz – 1 MHz
[4]
0.006 0.006 0.006 0.015
Accuracy Specifications: ± % of reading
Measuring Characteristics
Frequency and
Period Measurement
Method: Reciprocal-counting technique. AC-coupled
input using the ac voltage measurement
function.
Voltage Ranges 100 mVrms full scale to 750 Vrms. Auto or
manual ranging.
Settling
Considerations Errors will occur when attempting to measure the frequency
or period of an input following a dc offset voltage change.
The input blocking RC time constant must be allowed to fully
settle (up to 1 sec) before the most accurate measurements
are possible.
Measurement
Considerations All frequency counters are susceptible to error when
measuring low-voltage, low-frequency signals.
Shielding inputs from external noise pickup is critical for
minimizing measurement errors.
Operating Characteristics
Function Gate Time Digits
Frequency,
Period 1 s 6 ½
100 ms 5 ½
10 ms 4 ½
[1]
This specification will be available after 60 minutes of warm-up and sine wave
input, unless stated otherwise. This specification applies to 1s gate time.