II. Model Interpretation

PXI: Compliant with the PXI bus standard, 3U size, single slot, compatible with PXI/PXIe chassis.

6025E: NI E series DAQ model, representing a 12-bit, 200 kS/s, 16 analog input multi-functional I/O module.

Part Number: 777798-01 (standard model).

III. Technical Parameters (25℃)

1. Analog Input (AI)

Number of channels: 16 single-ended / 8 differential (software selectable)

Resolution: 12 bits

Maximum sampling rate: 200 kS/s (single channel), multi-channel time-division multiplexing

Voltage range: ±10 V (default), selectable ±5 V, ±2 V, ±1 V

Input impedance: 1 MΩ

Coupling mode: DC coupling

Absolute accuracy: ±0.04% FS (typical)

2. Analog Output (AO)

Number of channels: 2

Resolution: 12 bits

Output range: ±10 V

Drive capability: ±5 mA

Setup time: 10 μs (to 0.01%)

3. Digital I/O (DIO)

Number of channels: 32 (bidirectional TTL)

Voltage level: TTL (high ≥ 2.4 V, low ≤ 0.4 V)

Maximum rate: 1 MHz

4. Counter / Timer

Number: 2 24-bit counters

Function: event counting, pulse generation, frequency / period measurement

Time base: 100 MHz internal clock

5. Physical and Environmental

Size: 3U, single slot (approx. 22 mm × 124 mm × 126 mm)

Weight: approximately 100 g

Operating temperature: 0～55℃

Power consumption: approximately 5 W (PXI backplane power supply)

IV. Interface and Communication Configuration

Front panel / connectors

100-pin SCSI type I/O interface (requires CB-50LP and other wiring boxes)

No front panel indicator lights, status read by software

Bus and software

Backplane: PXI bus (PCI, trigger, 10 MHz reference)

Driver: NI-DAQmx, supports LabVIEW, TestStand, Python, C#

Synchronization: supports multi-module synchronization of PXI trigger bus and RTSI bus

V. Core Functions

Flexible analog input: 16 single-ended / 8 differential selectable, suitable for voltage and sensor signals, meeting multi-channel measurement requirements.

Medium-rate high-precision acquisition: 200 kS/s, 12 bits, suitable for medium-speed transient signals and steady-state measurements.

Complete multi-functional I/O: AI + AO + DIO + counter integrated, balancing measurement, control and timing.

Low cost high integration: all functions integrated in a single slot, simplifying the system and reducing costs.

Reliable industrial-grade design: wide temperature operation, anti-interference, suitable for laboratory and industrial sites.

VI. Application Scenarios

Industrial automation: production line analog quantity monitoring (temperature, pressure, level), closed-loop control.

Sensor measurement: thermocouple, RTD, strain bridge, voltage-type sensor data acquisition.

Laboratory research: teaching experiments, basic physics / chemistry signal recording, small test system.

General testing: PCB function testing, electronic component parameter measurement, low-speed data recording.

Motion and process control: used with counters for encoder speed measurement, pulse output control for actuator.

VII. Usage and Maintenance Instructions

Installation and power-on

Disconnect power, insert PXI single slot, chassis reliably grounded; power on, NI-DAQmx self-checks.

Keep the operating temperature within 0～55℃, keep the air duct unobstructed.

Wiring and operation For analog input, use shielded cables and differential wiring to suppress common-mode interference; the input voltage should not exceed ±10 V.

The 100-pin interface is not suitable for long-term insertion and removal; it is recommended to be connected with a wiring box as a transition.

When multiple modules are synchronized, share the PXI trigger bus and 10 MHz reference.

Daily maintenance and calibration

It is recommended to conduct a traceability calibration once a year to compensate for gain/offset drift.

Keep the interface clean; cover it with a dust-proof cover when not in use; avoid strong vibrations and humid environments.

Perform anti-static operations to prevent static damage to the input circuit.