6½ Digit PXI Digital Multimeters (M9181A, M9182A, M9183A).pdf - 第19页
Find us at www. keysigh t.com Page 19 Frequency and period (M9182A and M9183A) Measure ment metho d Direct (c onventio nal) count ing Input imped ance 1 MΩ with < 300 pF Sensitivity (130 Hz) .001 Hz Totalizer (M9183A …

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Peak input
8 x 10
6
V Hz product (example: 250 V @ 32 kHz)
Input overvoltage
protection
M9181A: 240 VAC on voltage inputs
M9182A/3A: 250 VAC all ranges
ACV noise rejection Common mode rejection at 50 Hz or 60 Hz; 1 kΩ imbalance in either lead
> 60 dB
Resistance
Measurement
method
Selectable 2-wire or 4-wire. Current source referenced to LO output
Offset compensation
(M9183A only)
All ranges, use with apertures > 5 ms
Voffset + (I*R) < 2.2 V for ranges ≥ 2 kΩ
Voffset + (I*R) < 0.22 V for ranges < 2 kΩ
Maximum test
voltage
M9181A: 240 mV for 200 Ω ranges; 2.4 V for 20 kΩ to 20 MΩ ranges
M9182A/3A: 240 mV for 20 Ω and 200 Ω ranges; 2.4 V for 20 kΩ to 20 MΩ
ranges
M9183A only: 1.0 V for 200 MΩ range
Maximum lead
resistance
(4-wire)
50 kΩ for 200 kΩ, 2.0 MΩ, and 20 MΩ ranges; 5 kΩ for 20 kΩ range
500 Ω for 200 Ω and 2 kΩ ranges; 50 Ω for 20 Ω range
Input protection
M9181A: 240 V on all ranges
M9182A/3A: 250 V on all ranges
DC Current
Shunt resistance
10 Ω for 2 mA and 20 mA, 0.1 Ω for 200 mA and 2 A;
Virtual zero shunt for 200 μA, 20 μA, 2 μA, and 200 nA range (M9183A only)
Input protection
Protected with 2.5 A, 250 V fast blow fuse
True RMS AC Current
Measurement
method
AC coupled true RMS measurement (measures the AC component only.)
Analog RMS DC converter.
Shunt resistance
10 Ω for 2 mA and 20 mA, 0.1 Ω for 200 mA and 2 A
Input protection
Protected with 2.5 A, 250 V fast blow fuse

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Frequency and period (M9182A and M9183A)
Measurement method
Direct (conventional) counting
Input impedance
1 MΩ with < 300 pF
Sensitivity (130 Hz)
.001 Hz
Totalizer (M9183A only)
Active edge polarity
Positive or negative transition
Maximum count
10,000,000,000
Allowed rate
1 to 30,000 events per second
Threshold
Set threshold DAC
Accuracy
±2 counts
Capacitance (M9182A and M9183A)
Measurement method Differential charge balance: variable currents used to stimulate dV/dt
response.
Connection type
2-wire

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Environmental and physical characteristics
Temperature range Operating -10° to 55 °C
Non-operating -40 ° to +85 °C
Relative humidity Operating to 80% at 40 °C
Full accuracy to 40% RH for 41 °C to 55 °C (non-condensing)
Max operative altitude
2000m (10,000 feet)
Connectors V HI*, 2-wire Ω IN, DCV OUT
V LO*, 2-wire Ω IN, DCV OUT
I HI*, 4-wire Ω IN
I LO*, 4-wire Ω IN
Sync OUT**
External Trigger IN**
Trigger and Sync common**
Sheathed banana jack
Sheathed banana jack
Sheathed banana jack
Sheathed banana jack
DIN 7, pin 2
DIN 7, pin 7
DIN 7, pin 4
Safety & EMC Refer to Declaration of Conformity for the latest revisions of regulatory
compliance at: www.keysight.com/go/conformity
Warm-up time
1 hour
* Do not connect the V HI and V LO or I HI and I LO connectors to anything when the measurement function does not utilize
those connectors.
** M9182A & M9183A only
Physical characteristics
Dimensions
3U/1-slot PXI/Compact PCI standard
Weight
0.5 kg (1 lb.)
Power dissipation
+5 V
Total power
300 mA
1.5 W max