Rigol DM858 - Page 145

Measurement Attentions
Due to external noise, measurement errors can occur when measuring small
capacitance. Shielding inputs is critical for minimizing such errors.
NOTE
[1]: Specifications are guaranteed when the "Relative" operation is enabled. Additional errors
may be caused by non-film capacitors.
[2]: Specifications are guaranteed when the capacitance range is between 10% and 120%.
[3]: 10 mF is only available for DM858. The max. measurement range for DM858E is 1 mF.
Trigger Characteristics
Trigger Characteristics
Trigger Source Auto, Single, External
Samples Per
Single Trigger
1 to 2000
Auto Trigger
Interval
Slow: 400 ms to 2000 ms
Medium: 50 ms to 2000 ms
Fast: 8 ms to 2000 ms (DM858); 12 ms to 2000 ms (DM858E)
Reading Hold
Sensitivity
0.01%, 0.1%, 1%, or 10% of the reading
External Trigger
Input
Input Level 5 V TTL-compatible
Trigger
Condition
Rising edge/falling edge/high level/low level
Input Impedance >20 kΩ, in parallel with 400 pF, DC-coupled
Min. Pulse Width 500 μs
VMC Out
Level 5 V TTL-compatible
Output Polarity Positive/negative
Output
Impedance
200 Ω, typical
Output Pulse
Width
Slow: 1 ms to 399 ms
Medium: 1 ms to 49 ms
Fast: 1 ms to 7 ms (DM858); 1 ms to 11 ms
(DM858E)
Other Measurement Characteristics
Any Sensor
Temperature
Sensor
TC: B, E, J, K, N, R, S, T
RTD: 385 (0.00385), 389 (0.00389), 391 (0.00391), 392 (0.00392)
temperature coefficient
Thermal: 2.2 kΩ, 3 kΩ, 5 kΩ, 10 kΩ, 30 kΩ resistance coefficient
Specifications
Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved. DM858 Series User Guide
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