Datron 4808

The Datron 4808 is a precision multifunction calibrator engineered for high-accuracy calibration of digital multimeters and test equipment up to 8.5 digits. It delivers DC voltage measurement to 1000 V with 7½-digit resolution and 10 nV sensitivity, AC voltage to 1000 V at 6½ digits with 100 nV resolution, and current measurement from 100 µA to 10 A (expandable to 11 A). Resistance measurement spans 10 Ω to 100 MΩ, with frequency generation from 10 Hz to 1 MHz. The instrument achieves ±1°C DCV accuracy of 1 + 0.15 ppm on 90-day specifications, with general accuracy of 0.0025% of reading plus 0.0015% of range.

Technical Specifications

DC Voltage: 0–1000 V, 7½-digit resolution, 10 nV minimum

AC Voltage: 0–1000 V, 6½-digit resolution, 100 nV minimum

DC Current: 100 µA–10 A (Option 40), 6½-digit resolution, 100 pA minimum

AC Current: 100 mA–10 A (Option 40), 6½-digit resolution, 100 pA minimum

Resistance: 10 Ω–100 MΩ (Option 50)

Frequency: 10 Hz–1 MHz

Output Impedance: 100 Ω (100 µV–100 mV ranges); 25 mA maximum (1 V–1000 V)

Maximum Capacitive Load: 1000 pF (1 V–100 V ranges); 300 pF (1000 V)

Display: 7½ digits

Power Supply: 100–240 V AC, 50/60 Hz

Key Features

Autocal function ensures 24-hour specification compliance

Shadow Calibration stores and verifies new calibration data before implementation

Option 70 extends bandwidth to 3.5 V/30 MHz via Type N connector output

IEEE-488, RS-232, and USB interfaces support automated remote control

Modular architecture with configurable voltage, current, and resistance options

Compact form factor: 285 × 88 × 383 mm, 4.5 kg

Typical Applications Calibration laboratories and R&D environments requiring precision DMM verification and multi-function signal generation across DC, AC, and resistance domains.

Compatibility & Integration Supported by the 4950 Multifunction Transfer Standard and operates with the 4600 Transducer Amplifier.