Technical Specifications:

• Resolution: 6½ digits (1,200,000 counts maximum)
• DC Voltage Accuracy: ±0.0015% of reading (basic accuracy)
• AC Voltage Accuracy: ±0.02% of reading (45 Hz to 1 kHz)
• DC Current Accuracy: ±0.012% of reading
• AC Current Accuracy: ±0.05% of reading (45 Hz to 1 kHz)
• Resistance Accuracy (2-wire): ±0.008% of reading
• Resistance Accuracy (4-wire): ±0.003% of reading
• Temperature Input: Thermocouple (J, K, T, E, R, S, B, N) and RTD (Pt100, Pt1000, Cu50, JPt100)
• Frequency Measurement Range: 0.1 Hz to 300 MHz
• Capacitance Measurement Range: 0.1 nF to 100 mF

Functional Features:

• Auto-ranging and manual ranging capability
• Continuous measurement mode with up to 1,000 readings per second
• Trend capture function for monitoring drift over time
• Statistical functions: mean, standard deviation, maximum, minimum, peak-to-peak
• Comparator function with pass/fail judgment and binning
• Relative mode and offset nulling
• Diode test and continuity buzzer

Interface & Communication:

• GPIB (IEEE-488.2)
• RS-232C
• USB 2.0 (USB-TMC compliant)
• LAN (Ethernet, LXI Class C compliant)

Display:

• Large Vacuum Fluorescent Display (VFD) with backlight
• Primary digits: 6½ digits; Secondary digits: 5 digits

Power Supply:

• AC 100 V to 240 V, 50/60 Hz
• Power consumption: approximately 40 VA

Physical Dimensions & Weight:

• Dimensions: 210 mm (W) × 105 mm (H) × 280 mm (D)
• Weight: approximately 3.5 kg

Material Composition:

• Housing: ABS resin with metal chassis
• Front panel: Aluminum alloy with protective coating
• Connectors: Gold-plated binding posts and BNC connectors

Structural Features:

• Benchtop form factor with tilt-stand for optimal viewing angle
• Rubber feet for vibration isolation and stability
• Rear panel houses all I/O connectors in a shielded configuration

Working Principle:
Utilizes a dual-slope integration A/D converter for DC measurements, providing exceptional noise rejection. AC measurements use true RMS conversion. Resistance measurements employ a constant-current source method with 4-wire Kelvin sensing for lead resistance elimination.

Advantages & Highlights:

• Industry-leading 0.0015% DC voltage accuracy
• 6½-digit resolution for ultra-fine measurement granularity
• LXI compliant for seamless integration into automated test systems
• Low thermal EMF design minimizes measurement errors

Applicable Industries:

• Calibration laboratories (NIST/ISO 17025)
• Semiconductor manufacturing test
• Aerospace and defense electronics testing
• Automotive electronics quality control
• Research and development laboratories

Installation Requirements:

• Place on a stable, level, vibration-free benchtop
• Maintain minimum 100 mm clearance on all sides for ventilation
• Ground the chassis via the rear grounding terminal

Usage Precautions:

• Do not exceed the maximum input ratings: 1000 V DC / 750 V AC for voltage; 3 A for current
• Allow 30-minute warm-up period before high-precision measurements
• Use shielded cables for low-level signal measurements to reduce noise pickup
• Do not operate in environments exceeding 80% relative humidity without dehumidification