Specifications

RIGOL Chapter 1 Performance & Specifications
Service Guide for DM3058
1-4
Input Protection: 1000 V on all ranges
CMRR (common mode rejection ratio): 120 dB (For the 1 kΩ unbalanced resistance in LO lead,
maximum ± 500 VDC).
NMRR (normal mode rejection ratio): 80 dB at “slow” measurement rate
Add 20 dB when open the “AC filter” (Settling time adds
0.35 s (source impedance near zero))
Resistance
Measurement Method: 4-wire resistance or 2-wire resistance optional
For current source refer to LO input.
Open-circuit Voltage: P/F in <8 V.
Max. Lead Resistance: 10% of ranges, on the range of 200 Ω, for each lead.
1 kΩ, on all other ranges, for each lead.
Input Protection: 1000 V on all ranges.
DC Current
Shunt Resistor: 200 μA sampling voltage<8mV
2 mA sampling voltage<80mV
1 Ω for 20 mA, 200 mA
0.01 Ω for 2 A, 10 A
Input Protection: Rear panel: accessible 10 A, 250 V fast-melt fuse
Internal 12 A, 250 V slow-melt fuse
Continuity / Diode Test
Measurement Method: 1 mA ± 5% current source, <8 V open-circuit voltage
Response Time: 123 samples / sec, with beeper
Continuity Threshold: Adjustable from 1 Ω to 2000 Ω
Input Protection: 1000 V
Setting time attentions:
The setup time about voltage measurement is influenced by source resistance and media
characteristics of cable as well as input signal.