RS PRO RSDM-9060, User Manual

Page: 395 / 412

395
AC Specification: It will be available after 60 minutes of warm-up, sine wave as
well as 1/s speed rate.
The entire range of measurement will pass the set range by 20% except the tests
of 750 VAC, 3 A AC and 10 A AC.
Specifications are for sinewave input >5% of range. For inputs from 1% to 5% of
range and <50 kHz, add 0.1% of range additional error. For 50 kHz to 100 kHz,
add 0.13% of range. The measurement range of 750 VAC is limited within the
range of 7.5 x 10^7 Volt–Hz.
Three speed settings provided for low-frequency performance: 1/s (3 Hz), 5/s (20
Hz), 20/s (200 Hz). Additional errors will Not occur for the frequency greater
than the filter settings.
Specifications are for sinewave input >5% of range, and is beyond 10
μ
A AC. For
inputs from 1% to 5% of range, add 0.1% of range additional error.
The 10A range of measurement is available for the terminals on front panel 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 All frequency counters are susceptible to error when