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The purpose of the Auto Calibration sequence is to eliminate offset and gain errors which may he present in the Figure The combination of amplifier gain and input attenuation are used to maintain a full-scale output of 1 V rms from the input amplifier.
Performance Test Without disturbing the frequency setting set 34555a AC Calibrator for an output of 7.
VOLTS w? Chances are good that the DVM is within its specification but the only way to tell for sure is to use a more accurate standard. Jumper Removal A15 Board Device control messages are issued by the system controller to manage instruments on the bus. Thus, a new trigger majual indicate a measurement and the new reading will replace the old reading.
A basic equation describing a measurement of one of the three inputs is: Test limits for the hour and day specifications are included in the tables for the accuracy tests. Please enter 5 or 9 numbers for the ZIP Code. Standard Abbreviations A big red resistor?
This allows common-mode current to flow through lead resistance Rb causing some measurement error. Remove the clip lead from across the 1 megohm resistor. At the end of that period, the 34SSA reading should be 0. NMR is the ratio of the peak normal-mode voltage to the peak error voltage in the reading.
| HP B – Calibration module from HP A
Operational Attenuator A, A with a letter subscript, e. In the Remote Operating mode, the 34SSA takes a certain amount of time to respond to a trigger message. Two ac feedback paths provide fixed gains of 1 or 0.
Remote Programming Examples Direct current power line. At this point the con- verter becomes a constant voltage source.
Instructions contained in the warnings must be followed. AC Operational Accuracy Test Rack Mounting Kit Option A service kit is available to aid in the repair of the SA. This is accomplished by measuring the offset and gain errors and mathematically correcting for them. Power, fuse and fan shot. Typical Operating Characteristics Cont’d.
All other input switch- ing is done with FF. Used for a 34555a common, as well as providing protection against electrical shock in case of a fault.
HP Hewlett Packard 3455a Digital Voltmeter Gold Board Vintage.
Figure shows the circuit configuration for making the. However, if the dc standard is 0. Learn More – opens in a new window or tab Any international shipping is paid in part to Pitney Bowes Inc. The complete performance test can be used at the day or 6-month 3455x, and following a complete calibration of the in- strument.
Hewlett Packard HP 3455a 6-digit Digital Voltmeter
Each set of specifications includes an accuracy specification for each voltage or ohms range. Syntax of the ad- dress command portion of the data message is depen- dent upon the controller being used. The major portion of communications transmit- ted over the Bus is accomplished by data messages. The scale mode of the math feature is described by the formula: To respond to the selected device clear message, the A must be ad- dressed to listen.
Keysight / Agilent Digital Voltmeter – In Stock, We Buy Sell Repair, Price Quote
Preamp gain is XIO. These Auto-Cal constants are usually taken be- tween each sample of the instrument and are updated each time a new cal constant measurement is made. For example, if the calibration chart indicates that the A output is 0. Hpp following options are available for use with the Model 34S5A; Option