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948XP California Instruments Oscillator Used

948XP California Instruments Oscillator Used

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Additional Features:

  • Frequency: Four-decade resolution from 45.0 to 9999 Hz
  • Frequency accuracy: ±0.005% of programmed value
  • Temperature coefficient: ±5 ppm per °C from 25°C
  • Long-Term Stability: ±15 ppm of programmed value per year at 25°C ±5°C
  • Default (Initial Value): Any
  • External Sync: TTL input
  • Phase-Angle
  • Two-Phase: 90° separation
  • Three-Phase: 120° separation
  • Three-Phase Delta: 60° separation
  • Phase Accuracy: ±° (add 0.5 DEG per kHz above 2 kHz)
  • Remote Programming: IEEE-488 Subsets: SH1, AH1, T6, L3, SR1, RL2, DC1, DT1; IEEE-728-1982 Operating Codes and Formats; Numeric Representation: NR1, NR2, or NR3; Headers: HR1 or HR2; Message Separators: SR1
  • Bus reporting when used with IMC1
  • Voltage at Load: ±2V Accuracy with 1V resolution
  • Current Draw at Load: ±0.2 Amp accuracy with 0.1 resolution dependent on amplifier
  • Power at Load: ±0.02kw Accuracy with 0.01kw resolution dependent on amplifier
  • Power Factor of Load: 0.000 to 1.000
  • The amplitude screen provides simultaneous program of amplitude in volts RMS.
  • Precision regulation at the sense point (load) insures accuracy.
  • The range screen allows programming of the AC power source voltage range.
  • The current limit screen provides programming of maximum output current.
  • The Elapsed Time screen displays the total run time in hours.
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Specifications
Datasheets

The California Instruments 948XP is a powerful microprocessor-based programmable Power Controller with complete talker/listener capability for the IEEE-488 GPIB. All programming and control features may be accessed using either the 16-key front panel keyboard or via the IEEE-488 bus. Programming is easy, using the high-level Abbreviated Plain English (APE) language. The 16-character LCD alphanumeric display is user-friendly-the screens use the simple three-letter mnemonics that are also used for bus programming-there are no reference codes required.

Four decades of frequency output are available, with resolution to 0.1 Hz and ±0.005% accuracy. Frequency range is automatic. Local programming is simplified through the multi-page Menu Screens and seventeen parameter screens. The screens are accessed easily and quickly via the keypad.

System Measurements

The system output voltage, current, power, and power factor of all three phases may be monitored using the voltage (VLT), current (CUR), power (PWR) and power factor (PWF) screens respectively.

Multi-Phase Systems

The amplitude, frequency, and current limit of the three outputs are simultaneously programmable.

Ramp Functions

The amplitude, frequency, and current limit values may be programmed to increment or step over a given time. The starting and ending values, step size and step duration are all selectable. Two output parameters may be ramped simultaneously with different ramp rates.

Calibration

No inside adjustments are ever needed; all calibration is performed from the front-panel keypad, or via the IEEE-488 interface.

External Sync

An external sync input is accepted which is frequency-tracked up to 450 Hz and locks the output phase precisely to the sync input.

Initialization Parameters

Non-volatile memory is provided to store the IEEE-488 address, frequency limits, initial frequency, amplitude limits, initial range and calibration coefficients.

Model No

948XP

Condition

Used

Manufacturer

California Instruments

California_Instruments_948XP
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