Datasheet

Datasheet
TEK.COM18
Frequency and Period
Frequency and Period Accuracy ± (% of reading)
29
Range Resolution Frequency Period
2 Year Accuracy
T
CAL
±5°C
Temperature
Coefficient in°C/°C
100 mV to 750 V
(For signals >5% of range
and >10 mV
RMS
)
0.0001% ppm
of reading
3 Hz to 10 Hz 333 ms to 100 ms 0.10 0 0.0002
>10 Hz to 100 Hz <100 ms to 10 ms 0.030 0.0002
>100 Hz to 1 kHz <10 ms to 1 ms 0.010 0.0002
>1 kHz to 300 kHz <1 ms to 3.3 µs 0.009 0.0002
Square Wave
30
0.008 0.0002
Frequency and Period Characteristics
Measurement Method Reciprocal-counting technique; measurement is AC-coupled using AC measurement functions.
Voltage Ranges 100 mV
RMS
full scale to 750 V
RMS
; auto or manual ranging.
Gate Time User definable from 2 ms to 273 ms (default 200 ms)
Continuity
Continuity Accuracy 2-Wire ±(% of reading + % of range)
31
Range Resolution Test Current
Open Circuit
Voltage (±5%)
2 Year Accuracy
T
CAL
±5°C
Temperature
Coefficient
1 kΩ 100 mΩ 1 mA 9.2 V 0.010 + 0.010 0.0006 + 0.0001
Capacitance
Capacitance Accuracy ±(% of reading + % of range)
32
Range Resolution
Charge Current
(±5%)
33
2 Year Accuracy
T
CAL
±5°C
Temperature
Coefficient
1 nF
34
0.1 p F 1 µA 0.80 + 0.50 0.05 + 0.05
10 nF 1 pF 10 µA 0.40 + 0.10 0.05 + 0.01
100 nF 10 pF 100 µA 0.40 + 0.10 0.05 + 0.01
1 µF 0.1 n F 100 µA 0.40 + 0.10 0.05 + 0.01
10 µF 1 nF 1 mA 0.40 + 0.10 0.05 + 0.01
100 µF 10 nF 1 mA 0.40 + 0.10 0.05 + 0.01
Capacitance Characteristics
Overrange 20% on all ranges.
Measurement Method Constant current slope measurement.
Maximum Voltage and Voltage Clamp
For all devices: Clamped by hardware to <3 V.
Notes
29. Specifications apply for sine wave input with detector bandwidth of 3 Hz. For a detector bandwidth of 30 Hz, add 100 mHz uncertainty.
For a detector bandwidth of 300 Hz, add 1 Hz uncertainty.
30. Used for square waves with amplitude > 10% of range and 10 Hz to 300 kHz.
31. Does not include user’s lead-resistance or plug-in module contact resistance.
32. Accuracies specified for cable, channel, and other stray connector capacitance properly zeroed with the REL function.
33. Discharge current limited to < 10 mA.
34. Specifications apply to front-panel inputs only.