KEITHLEY 7402 CALIBRATION and KEITHLEY 7402 REPAIR
The KEITHLEY 7402 is currently in stock and available for purchase on our  Sales Page
It is also available for immediate rental.
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 7402 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 7402   Description / Specification:    
KEITHLEY 7402 Thermocouple Scanner Card

The Keithley 7402 Nine Channel Thermocouple Scanner Card permits monitoring of up to nine thermocouples or other transducers. The nine signal channels use a guarded 2-pole configuration. An isothermal block provides electrical isolation up to 42 V while assuring excellent thermal conductivity between cold junction terminations. A sensing device mounted in the isothermal block monitors the cold junction and outputs a calibrated reference voltage that is linearly related to the temperature. Specifications. Number of Channels: 9. Card Configuration: Multiplexer. Contact Configuration: 2 form A. Maximum Voltage: 110 V. Maximum Current: 1 A. Maximum Power: 60 VA. Contact Potential: <1 uV. Contact Life: >10^8 closures cold switching; >10^6 closures at maximum signal levels. Connection Type: Screw terminal. Temperature Offset: ±0.05° C maximum from HI to LO of any channel or between any two adjacent channels in one column on the isothermal block. ±0.1° C maximum between any two terminals on the isothermal block. Maximum additional dynamic offset due to 10°C step change in environment: ±0.1°C after one hour settling. Reference Output: +200 uV/C (+54.63 mV at 0°C).



 

Standard Calibration $375.00 *
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*This is a Web introductory price for one calibration of the KEITHLEY 7402. 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.

Crest Factor
Crest factor or peak-to-average ratio (PAR) is a measurement of a waveform, calculated from the peak amplitude of the waveform divided by the RMS value of the waveform

Linearity
Linearity is the relative difference between the displayed power ratio, Dx/D0, and the actual (true) power ratio Px/P0 caused by changing the displayed power level from the reference level, D0, to an arbitrary displayed level, Dx.

Phase Noise
Phase noise is the frequency domain representation of rapid, short-term, random fluctuations in the phase of a waveform, caused by time domain instabilities. Phase noise (L(f)) is typically expressed in units of dBc/Hz, representing the noise power relative to the carrier contained in a 1 Hz bandwidth centered at a certain offsets from the carrier.

Sensitivity
Sensitivity is the minimum magnitude of input signal required to produce a specified output signal having a specified signal-to-noise ratio, or other specified criteria.

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