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.

Need another DC Power Supply?
Shop for Comparable Products on our
 used DC Power Supply page

   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 $295.00 *
Click on Logo for More Prices
*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.

Available Gain
Available Gain is the ratio, at a specific frequency, of power available from the output to the power in from the source.

Decibel (dB)
A unit of measurement of power which indicates relative power. A -10 dB means a reduction in power by 10 times, -20 dB means another 10 times or 100 times overall, -30 means another 10 times or 1000 times overall and so on.

Mismatch Uncertainty
Mismatch Uncertainty is caused by re-reflections between one device (the source) and the device that follows it (the load).

Pulse Power
Pulse Power, the energy transfer rate is averaged over the pulse width. Pulse width is considered to be the time between the 50 percent risetime/falltime amplitude points. Pulse power averages out any aberrations in the pulse envelope such as overshoot or ringing.

Please contact us for your KEITHLEY 248 CALIBRATION and/or KEITHLEY 248 5000V 5mA High Voltage Power Supply REPAIR

I'm interested in: 
Calibration Type (Select one):

Repair Information:
 Serial Number:

 Is there any physical damage?  
 If yes, describe:

What is the description of the problem?

How/when did the problem start?

 (*) Required Fields    For formal quote please fill in all fields.
From (Email):*
Contact Name:*
Address 1:
Address 2:
State/Territory/Province: *
Zip/Postal Code: