PCIe-4065 6½-Digit Digital Multimeter
Земля PCIe-4065 is a 6½-digit PCI Express digital multimeter designed for automated test, production measurement and laboratory applications. It measures DC voltage, AC voltage, DC current, AC current, two-wire resistance, four-wire resistance and diode voltage.
The device supports voltage measurements up to 300 V and continuous current measurements up to 3 A. Its 100 mV DC voltage range provides resolution down to 100 nV, making it suitable for both general electrical measurements and precision low-level testing.
The PCIe-4065 includes hardware triggering and an auxiliary I/O connector for coordinating measurements with external switching systems and automated test fixtures.
Key Features of the PCIe-4065
- 6½-digit digital multimeter
- PCI Express computer interface
- DC voltage measurements up to 300 V
- AC voltage measurements up to 300 Vrms
- DC and AC current measurements up to 3 A
- Two-wire and four-wire resistance
- Resistance ranges up to 100 MΩ
- Diode testing up to 10 V
- AC voltage bandwidth up to 100 kHz
- Maximum trigger rate of 2.5 kHz
- Less than 1 µs trigger latency
- Front-panel shrouded banana connectors
- Auxiliary trigger and control I/O
- NI-DMM software support
PCIe-4065 Technical Specifications
| Product Model | PCIe-4065 |
|---|---|
| Part Number | 779771-01 |
| Product Type | Digital multimeter device |
| Шинный интерфейс | PCI Express |
| Display Resolution | 6½ digits |
| DC Voltage Ranges | 100 mV, 1 V, 10 V, 100 V and 300 V |
| Maximum DC Voltage | 300 V |
| Maximum AC Voltage | 300 Vrms, CAT II |
| DC Current Ranges | 10 mA, 100 mA, 1 A and 3 A |
| Maximum Continuous Current | 3 A |
| Resistance Ranges | 100 Ω to 100 MΩ |
| Resistance Modes | Two-wire and four-wire |
| Diode Test | Up to 10 V |
| AC Voltage Bandwidth | 10 Hz to 100 kHz |
| Maximum Trigger Rate | 2.5 kHz |
| Trigger Latency | Less than 1 µs |
| Measurement Category | CAT II |
| Current Protection | User-replaceable 4 A, 300 V fast-acting fuse |
| Software Driver | NI-DMM |
PCIe-4065 Part Number and Accessories
| Item | Part Number | Описание |
|---|---|---|
| PCIe-4065 | 779771-01 | 6½-digit PCI Express digital multimeter |
| Low-Thermal Test Leads | Configuration dependent | Recommended for precision DC voltage and resistance measurements |
| Four-Wire Resistance Leads | Configuration dependent | Connects HI, LO, HI SENSE and LO SENSE terminals |
| Auxiliary I/O Cable | Configuration dependent | Provides access to external triggering and measurement-complete signals |
| Replacement Current Fuse | Specification dependent | 4 A, 300 V fast-acting high-breaking-capacity fuse |
DC and AC Voltage Measurement
The PCIe-4065 measures DC voltage across five ranges from 100 mV to 300 V. The lower ranges provide finer resolution for low-level signals, while the higher ranges support power-supply and line-level testing.
AC voltage measurement covers frequencies from 10 Hz to 100 kHz, depending on the selected reading rate and accuracy requirements.
Current Measurement
DC current ranges extend from 10 mA to 3 A, allowing measurement of low-current circuits and larger loads. AC current measurement is supported up to 3 A with bandwidth dependent on the selected range.
Always move the test lead to the correct current terminal and verify the fuse before measuring current. Never connect the current input directly across a voltage source.
Two-Wire and Four-Wire Resistance
Two-wire resistance is convenient for general measurements. Four-wire resistance compensates for lead and contact resistance and is preferred for low-resistance components, cable assemblies and switch contacts.
Hardware Triggering
External triggering allows a measurement to begin in response to a fixture, switch or test-system event. The measurement-complete signal can advance a scanner or switching module to the next channel.
Safety and Measurement Category
The PCIe-4065 is rated for measurements up to 300 V in Measurement Category II. It must not be used for CAT III or CAT IV distribution-system measurements.
PCIe-4065 Applications
- Automated production testing
- Power-supply verification
- Electronic component testing
- Cable and connector resistance testing
- Battery and DC system measurement
- Switch and relay contact testing
- Temperature measurement with external sensors
- Manufacturing functional test
- Laboratory electrical measurement
- Multipoint scanning systems
Automated Multipoint Testing
The PCIe-4065 can be combined with a PXI-2530 switch module or other compatible switching hardware to measure multiple DUT points with one DMM.
Low-Resistance Measurement
Four-wire resistance measurement reduces error caused by cables and fixture contacts. This is useful for checking connectors, wiring harnesses, fuses and relay contacts.
PCIe-4065 Installation Workflow
Step 1: Confirm the PCI Express Slot
Verify that the computer provides a compatible PCI Express slot and sufficient airflow.
Step 2: Install the DMM
Power down the computer, follow ESD precautions and install the PCIe-4065 securely.
Step 3: Install NI-DMM
Install the driver and confirm device recognition in NI MAX.
Step 4: Warm Up the Instrument
Allow at least 30 minutes of powered operation before precision measurements or calibration.
Step 5: Select the Measurement Function
Configure function, range, aperture, resolution and triggering based on the test requirements.
Step 6: Validate with a Known Standard
Measure a traceable voltage or resistance standard before using the system for production acceptance testing.
PCIe-4065 Troubleshooting
Current measurements always read zero
Check the current-input fuse, test-lead terminal and selected current range.
Resistance readings include excessive offset
Use offset nulling or four-wire resistance and allow thermal EMFs to stabilize.
AC readings are inaccurate
Check signal frequency, crest factor, amplitude, selected range and AC bandwidth.
Measurements are noisy
Increase the power-line-cycle aperture, use shielded leads and reduce ground-loop or electromagnetic interference.
The DMM is not detected
Check PCI Express seating, NI-DMM installation and computer slot compatibility.
PCIe-4065 Comparison
| Модель | Разрешение | Platform | Best Suited For |
|---|---|---|---|
| PCIe-4065 | 6½ digits | PCI Express | PC-based automated measurements |
| PCI-4065 | 6½ digits | PCI | Legacy PCI systems |
| PXI-4065 | 6½ digits | PXI | Modular PXI test systems |
| PXI-4072 | 6½ digits | PXI | Higher-performance PXI measurements |
PCIe-4065 Frequently Asked Questions
What measurements can the PCIe-4065 perform?
It measures AC/DC voltage, AC/DC current, two- and four-wire resistance and diode voltage.
What is the maximum voltage?
The maximum rated measurement voltage is 300 V in CAT II applications.
What is the maximum current?
The maximum continuous current measurement is 3 A.
Which driver controls the PCIe-4065?
The PCIe-4065 uses the NI-DMM instrument driver.
What is the part number?
The standard PCIe-4065 part number is 779771-01.
Recommended Related Products
- PCI-4065 Digital Multimeter
- PXI-4065 Digital Multimeter
- PXI-4072 Digital Multimeter
- PXIe-4080 Digital Multimeter
Request a Quote for the PCIe-4065
Contact us for availability, calibration options and project pricing for the PCIe-4065 6½-digit digital multimeter. We can also help select test leads, switching hardware and suitable PXI alternatives.
