KEITHLEY 248 CALIBRATION and KEITHLEY 248 REPAIR
 
A calibration by Custom-Cal is performed by engineers with extensive OEM experience. We have the expertise and the necessary standards to perform the KEITHLEY 248 Calibration, onsite calibration may be available. We specialize in quick turnaround times and we can handle expedited deliveries upon request.

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   KEITHLEY 248   Description / Specification:    
KEITHLEY 248 5000V 5mA High Voltage Power Supply

The Keithley 248 High Voltage Supply, designed for use in the laboratory or for test applications, features reversible polarity, excellent regulation, and low output voltage ripple. The digital displays provide accurate readings of voltage and current, and digital entry of current and voltage values allow easy, precise setting of output values. Output voltage can be set from the front panel, via a remote analog voltage, or over the standard IEEE-488 interface. Voltage and current signals are also available for remote monitoring. Specifications. Output Voltage: 0 to ± 5000 V DC. Maximun Output Current: 5.000 mA DC. Voltage set Accuracy: ±(0.01% of setting + 0.05% of range). Voltage Display Accuracy: Voltage Set Accuracy ±1V, typical (±2V, max.). Voltage Resolution: 1V (set and display). Voltage Resettability: 1V. Voltage Limit Range: 0 to 100% of full scale. Voltage Regulation Line: 0.001% for ±10% line voltage change. Voltage Regulation Load: 0.005% for 100% load change, typical. Current Limit Accuracy: 0.01% + 2.5µA. Current Resolution: 1µA. Current Display Accuracy: Current Set Accuracy ±1µA, typ. (±2µA, max.). Stability: ±0.02% per hour typical for ambient temperature within 2°C. Temperature Drift: 50ppm/°C, 0° to 50°C, typical. Monitor Outputs; Output Scale: 0 to +10V for 0 to full range output regardless of polarity. Current Rating: 10mA maximum. Output Impedance: <1ohm. Accuracy: ±0.2% of full scale. Update Rate: 8Hz. External Vlotage Set; Input Scale: 0 to +10V for 0 to full range output regardless of polarity. Input Impedance: 1M-ohm. Accuracy: ±0.2% of full scale. Update Rate: 16Hz. Output Slew Rate: <0.3s for 0 to full range under full load.



 

Standard Calibration $550.00 *
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*This is a Web introductory price for one calibration of the KEITHLEY 248. Price does not in most cases include measurement performance data. Pricing does include NIST traceable calibration and issue of a calibration certificate and calibration label. Pricing may vary slightly due to volume and location of laboratory supporting calibration. Volume pricing may apply. On-site fees may apply depending on logistics, location and volume of work to be completed during the visit.


Related Bench Equipment Terms and Definitions. For a complete list go to our  Terms and Definitions Page.

dBm
dBm (sometimes dBmW) is an abbreviation for the power ratio in decibels (dB) of the measured power referenced to one milliwatt (mW). Zero dBm equals one milliwatt. A 3 dB increase represents roughly doubling the power, a 3 dB decrease, the power is reduced by about one half.

Millimeter-wave
Millimeter-wave is a term that generally refers to frequencies of 26.5 GHz and above. That is where signal wavelengths fall below approximately 10 mm, and thus the terminology changes from centimeters to millimeters.

Power Repeatability
Power Repeatability is the random uncertainty in reproducing the power level after changing and re-setting the power level. The power repeatability is ± half the span (in dB) between the highest and lowest actual power. Note: - The long-term power repeatability can be obtained by taken the power repeatability and power stability into account.

Stability
Stability is the extent to which a specified property, characteristic, or parameter of a substance, device, or apparatus, remains fixed with the passage of time or with varying environmental conditions.

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