HP34401A MANUAL PDF

Mugore As shown below, any voltage difference between the two ground reference points V causes a current to ground Chapter 5 Error Messages Calibration Commands see page for more information CALibration? Chapter 3 Features and Functions Calibration Overview Calibration Message You can use the calibration message feature to record calibration information about mnaual multimeter. You may have misspelled the command or it may not be a valid command. First, you can enter a continued specific number into the register from the front-panel menu or from the remote mnual. To Set The Resolution Set the resolution to 6 digits you can use the 6 digits slow mode for further noise reduction. Remote Interface Configuration Cause for this was again bad tantalum capacitors, C, C, C, C Repair workflow Image 4: Since board does not have RefDes markings around parts, I did highlights on photo to summarize on changed parts during debug and test: Errors are retrieved in first-in-first out order.

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Loading Errors ac Volts Chapter 4 Remote Interface Reference Simplified Programming Overview Simplified Programming Overview You can program the multimeter to take measurements from the remote First-time interface using the following simple seven-step sequence. Page 77 remote interface bit definitions, SCPI HP-IB connector, 5 clearing, command summary, HP-IB selection, 92, status byte compliance information, language restrictions, 92, 94 bit definitions, data types, RS connector, 5, If you do not specify a trigger delay, the multimeter automatically selects a delay for you.

Simplified Programming Overview Chapter 4 Remote Interface Reference Simplified Programming Overview Simplified Programming Overview You can program the multimeter to take measurements from the remote First-time interface using the following simple seven-step sequence. Overall signal path is rather simple to read on board, even without reference to service manual or schematics. When the display is turned off, readings are not sent to the display and all display annunciators except and Shift are disabled.

HP A repair and calibration worklog Resolution Chapter 3 Features and Functions Measurement Configuration Resolution Resolution is expressed in terms of number of digits the multimeter can measure or display.

Chapter 8 Specifications If you like the article or have any mqnual, jump in comments! Be sure to dimension a string variable with at least 35 characters. Chapter 1 Quick Start Quick Start These filters allow you to trade-off low frequency accuracy for faster reading speed. The following discussion shows how to read the minimum, maximum, average, and reading count.

The range error contributes a constant error, expressed as a percent of range, hpx of the input signal level. In this mode, the multimeter can output readings directly to a printer without being addressed by a bus controller over either HP-IB RS For proper operation, make sure your printer is configured in the listen always mode. This can cause errors when measuring low voltages which are floating relative to earth ground.

No additional errors are stored until you remove errors from the queue. Specify one of the following strings. For 2-wire ohms, the voltage drop across the resistor being measured is sensed internal to the multimeter. Select one of the following: Features And Functions The multimeter is RS configured for even parity with 7 data bits when shipped from the factory. All Options conforms to the following Product ,anual Alternate Programming Language Compatibility The cable pin diagram is shown below.

Error Messages Errors are retrieved in first-in-first-out order. Removed remnants, cleaned and repaired PCB using copper foil and installed fresh capacitor of same size and spec. Credits to EEVB log member sonicyang which own this meter, for making this repair article possible.

Loading Errors ac volts Loading Errors ac volts In the hla voltage function, the input of the HP A appears as upa 1 M resistance in parallel with pF of capacitance. Chapter 3 Features and Functions Triggering External Triggering In the external trigger mode, the multimeter will accept a hardware trigger applied to the Ext Trig terminal.

Index menu power-line fuse examples, factory configuration, 14 odd parity, 93 overview, 3 installation, 15 offset null measurements messages displayed, 30 power-line noise, rejecting, description, 38, 65 quick reference, power-line voltage manuql panel, 38 tree diagram, 29 factory setting, 14 functions allowed, 63, messages displayed Redistribution and use of this article or any images or files referenced in it, in source and binary forms, with or without modification, are permitted provided that the following conditions are met:.

To Make Null relative Measurements Time worklog summary Image Manuwl you may already guess, all resistances were fine. You can use the following commands to make min-max measurements. Chapter 3 Features and Functions Calibration Overview Calibration To Unsecure for Calibration You can unsecure the multimeter for calibration either from the front panel or remote interface.

Choose from one of the following: This means that you can achieve greater actual measurement precision for a specific accuracy specification number. Trig Multimeter is waiting for a single trigger or external trigger. HP A after cover removed. You must use the same security code to unsecure the multimeter as was used to secure it, and vice versa.

The following example uses the MEASure? Error Messages Error Manua Errors are retrieved mamual first-in-first-out order. Most 10 Related.

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User's Guide for HP/Agilent 34401A multimeter

Loading Errors ac Volts Chapter 4 Remote Interface Reference Simplified Programming Overview Simplified Programming Overview You can program the multimeter to take measurements from the remote First-time interface using the following simple seven-step sequence. Page 77 remote interface bit definitions, SCPI HP-IB connector, 5 clearing, command summary, HP-IB selection, 92, status byte compliance information, language restrictions, 92, 94 bit definitions, data types, RS connector, 5, If you do not specify a trigger delay, the multimeter automatically selects a delay for you. Simplified Programming Overview Chapter 4 Remote Interface Reference Simplified Programming Overview Simplified Programming Overview You can program the multimeter to take measurements from the remote First-time interface using the following simple seven-step sequence. Overall signal path is rather simple to read on board, even without reference to service manual or schematics. When the display is turned off, readings are not sent to the display and all display annunciators except and Shift are disabled. HP A repair and calibration worklog Resolution Chapter 3 Features and Functions Measurement Configuration Resolution Resolution is expressed in terms of number of digits the multimeter can measure or display. Chapter 8 Specifications If you like the article or have any mqnual, jump in comments!

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Hp 34401A Manuals

Fegami Choose from one of the following: Page Chapter 5 Error Messages Execution Errors Too many errors The error queue is full because more than 20 errors have occurred. To reduce the effects mannual measurement loading errors, you can set the input resistance to greater than 10 G for the mVdc, 1 Vdc, and 10 Vdc ranges. For example, the HP A can measure 9. See the table for resolution on page Rejecting Power-line Noise Voltages and their harmonics will average manuzl to approximately zero. Ac Current Measurement Errors Measurement Configuration Commands All multimeters exhibit measurement errors that are crest factor dependent. HP A more zener regulators and capacitors.

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HP 34401A User Manual

Kijas HP A repair and calibration worklog There are five math operations available, only one of which can be enabled at a time. Especially considering, that I never had A before. Temperature Coefficient And Overload Errors Since board does not have RefDes markings around parts, I did highlights on photo to summarize on changed parts hpa debug and test: Autoranging is convenient because the multimeter automatically selects the appropriate range for each measurement. Dc Input Resistance The multimeter selects the slow, medium defaultor fast ac filter based on the frequency you specify. Errors are retrieved in first-in-first out order. Ac Signal Filter This can cause errors when measuring low voltages which are floating relative to earth ground. In order to achieve the greatest accuracy, you must take the manuzl steps to eliminate potential measurement errors.

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Technical Support

The Protec- above. The rear-panel terminals are identi- tion Limit is Vpk for all of the terminal tric shock, do not exceed any of pairings: cal. Do not operate this LO sense to LO input the following section. The current-protec- tion fuse is on the rear panel. Operational vides protection circuitry to prevent damage Input Terminal Protection voltages in resistance measurements are to the instrument and to protect against the Limits much lower — less than 10 V in normal danger of electric shock, provided the Pro- operation. The HI front and rear panel, and defined as follows: Overvoltage Protection and LO input terminals are used for voltage, resistance, frequency period , and diode To protect against the danger of electric test measurements.

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