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LOAD IMPEDANCE: Stable into 20,000pF typical.
COMMON MODE VOLTAGE: 250V DC (40V DC for Model 2440).
COMMON MODE ISOLATION: >109
W, <1000pF.
OVERRANGE: 105% of range, source and measure.
MAX. VOLTAGE DROP BETWEEN INPUT/OUTPUT AND SENSE TERMINALS: 5V.
MAX. SENSE LEAD RESISTANCE: 1MW for rated accuracy.
SENSE INPUT IMPEDANCE: >1010W.
GUARD OFFSET VOLTAGE: <150µV, typical (300µV for Models 2430, 2440).
SOURCE OUTPUT MODES:
Pulse (Model 2430 only)
Fixed DC level
Memory List (mixed function)
Stair (linear and log)
MEMORY BUFFER: 5,000 readings @ 5 digits (two 2,500 point buffers). Includes selected measured
value(s) and time stamp. Lithium battery backup (3 yr+ battery life).
SOURCE MEMORY LIST: 100 points max.
PROGRAMMABILITY: IEEE-488 (SCPI-1995.0), RS-232, 5 user-definable power-up states plus
factory default and *RST.
DIGITAL INTERFACE:
Output Enable: Active low input.
Handler Interface: Start of test, end of test, 3 category bits. +5V@ 300mA supply.
Not available on Model 2401.
Digital I/O: 1 trigger input, 4 TTL/Relay Drive outputs (33V @ 500mA, diode clamped).
Not available on Model 2401.
POWER SUPPLY: 100V to 240V rms, 50–60Hz (automatically detected at power up). Model
2400, 2401: 190VA. Model 2410: 210VA. Model 2420: 220VA. Model 2425, 2430: 250VA.
Model 2440: 240VA.
COOLING: Model 2401: Convection. Model 2410, 2420, 2425, 2430, 2440: Forced air,
variable speed.
EMC: Conforms to European Union Directive 89/336/EEC, EN 61326-1.
SAFETY: Conforms to European Union Low Voltage Directive. Models 2400 and 2401 UL listed
to UL 61010-1:2012 and UL 61010-2-30: 2012.
VIBRATION: MIL-PRF-28800F Class 3 Random.
WARM-UP: 1 hour to rated accuracies.
DIMENSIONS: 89mm high × 213mm wide × 370mm deep (3½ in × 83
⁄8 in × 149
⁄16 in). Bench
Configuration (with handle and feet):104mm high × 238mm wide × 370mm deep (41
⁄8 in ×
93
⁄8 in × 149
⁄16 in).
WEIGHT: 3.21kg (7.08 lbs) (Model 2425, 2430, 2440: 4.1kg, 9.0 lbs).
ENVIRONMENT: Operating: 0°–50°C, 70% R.H. up to 35°C. Derate 3% R.H./°C, 35°–50°C.
Storage: –25°C to 65°C.
