GDM-906X Series User Manual
362
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
[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.
[2]. This specification is available when both sine wave and square wave
input ≥ 100 mV. For the input of 10 mV to 100 mV, the % of reading
error needs to be multiplied by 10 times.
[3]. The amplitude range is from 10% to 120% and is lower than 750 ACV.
[4]. The input ≥ 60 mV, for 300 k ~ 1 MHz, within 100mV range.
Temperature Characteristics
[1]
(Exclusive of probe errors)
RTD (Accuracy based on PT100):
(100 Ω platinum [PT100], D100, F100, PT385, PT3916, or user type)
Temperature Coefficient
0°-18 °C & 28°-55 °C
Thermocouples (Accuracy based on ITS-90):
90 Day/1 Year
(23 °C±5 °C)
Temperature Coefficient
0°-18 °C & 28°-55 °C