3457A multimeter pdf manual download. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates. HP 3457A is a versatile system DMM with 7 functions (DCV, TrueRMS ACV up to 450 VAC, DCI, 2W and 4W resistance, Frequency, Period), providing readout with up to 6½-digit resolution (extendable to 7½ over GPIB) with measurement speed up to 1350 SPS. 3455A measuring instruments pdf manual download. Image 66: HP 3457A 6½-digit DMMwith Fluke 5700A Multi-Function Calibrator in background. com would like to apologize to author of this article, TEKTRONfor very long time on this publication.
· The Boat Anchor Manual Archive Path: /hp/a/. · HP A OPERATING AND SERVICE MANUAL Pdf Download. Reference source value = (Low limit + Hi limit) / 2; Calibration CalCheck Report, generated by 5700A, Janu. Difficulty of this repair was in inability to run self-diagnostics and lack of reference working meter to trace issues. External parts easy to get damaged 2. Linear, logarithmic, and manual sweep make measurements of filters, amplifiers, and other networks convenient and accurate. Table 3: RMSnoise data measurements Note, that on low voltage ranges (0.
We have made no changes to this manual copy. 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: 1. 3 GHz) quick reference guide including specifications, features, pricing, compatibility, design documentation, ordering codes, spec codes and more. Database contains 3 HP 3457A Manuals (available for free online viewing or downloading in PDF): Operating instructions manual, Service manual. · The Boat Anchor Manual Archive Path: /hp/a/. User Manuals, Guides and Specifications for your HP 3457A Multimeter. I am now accepting new manuals for inclusion in this archive. After my first article about 6½-digit HP 3456A there was a desire to attempt improvement of later DMMfrom Hewlett-Packard, Model 3457A.
To scale input signal amplitude input amplifier is always engaged, but has different gain coefficient. . Page 18: General Information. HP: 3455a Addeddate:24:36 Identifier hp_3455a Identifier-ark ark:/13960/t26b12t13 Ocr ABBYY FineReader. HP 3457A Manuals & User Guides. Upgrades and modifications on this HP 3457A were attempted for long time, multiple times for period over a year. This is not a mistake, but a design approach of the 3457A. doc Page : 388 Printed Date : /1/30 Size : 13.
. In case of 3457A, it’s likely due to additional amplification with gain 3. 345a5 Interrupt and Device Status Messages High to Low Terminals: Any extra triggers sent during this cycle will be ignored. This mean that we can supply manual hp3455 same voltage to both calibrated control multimeter and 3456A under calibration to make values match. Detail architecture of instrument can be studied from block diagram, represented in operation.
Meter manual hp3455 also comes with standard HP-IB/GPIB interface port for remote control/operation. Redistributions of files in binary form must reproduce the above copyright notice, this list of conditions, link to this page (/fix/hp3456a/), and the following disclaimer in the documentation and/or other materials provided with the distribution, for example Readme file. First attempt to boot meter revealed random front panel operation, without any system or pattern. This is non-traceable calibration for education purpose only. Can cause unexpected short circuits, or ESDissues (running meter in winter with people wearing charged sweaters).
This section is added by xDevs. All major change information has been integrated into the manual by page revision. Please note that Hewlett-Packard&39;s former test and measurement, semiconductor products and chemical analysis businesses are now part of Agilent Technologies. The HP3455A is an economical precision meter. If exact transfer standards not available, DIY references and sources are acceptable for hobbyist level usage, if there is access to more accurate calibrated DMMduring calibration period. For results testing I’ve used 7½-digit measurements with shorted and thermally PE-insulated inputs.
This manual contains installation information, operating and programming information, and configuration informatio n for the 3458A multimeter. To run some performance numbers on HP 3457A, let’s connect one to our Fluke 5700A/03working standard multi-function calibrator and use Python application to crunch some numbers. HP-IB and auto or manual ranging are also standard. In no event shall the author, xDevs. Just as honest description from seller, unit was missing one of outer covers and inguard internal shielding covers, and showing garbage on display and front panel LEDs: After arrival unit was switched for proper mains voltage (220VAC here), prior to connecting power. 2 cm HP 33s scientific calculator user’s manual H HP Part number F2216A-90020 Printed in China Edition 2.
Cost of maintenance on these meters is reachable even for hobby users to use a lab working tool. This module even have same HP part number. Manual Part NumberEdition.
Redistributions of files in binary form must reproduce the above copyright notice, this list of conditions, link to this page com/article/hp3457a/), and the following disclaimer in the documentation and/or other materials provided with the distribution, for example Readme file. I did not want to risk full disassembly, due to risk of killing the only working display. I have seen them go for an average of 0 US. Today these meters are available on secondary market for good prices, and can be interesting tool for novice analog design engineers who’d like to peek deeper into analog precision design. Input signal scale of the ADCas result is ±10V, but measurement scale is ratio of 3? The standard instrument measures dc volts, ac volts, and resistance. manual, the warranty shall be for the specified period.
Let’s take a close look on the device in question. SIMPLIFIED SPECIFICATION (not complete, the original specification is much more detailed, taken from a year 1988 service manual) DC VOLTAGE INPUT CHARACTERISTICS: 6 full scale ranges from 30mV (max. Yes, it also does mean that calibration will be lost if meter too old and battery discharged. Many of inteface and overall design ideas in this meter are used as a base for later HP 3458A monsters.
Image 1: HP 3457A overview Image 2: HP 3457A bottom side This DMM also features new “screwdriver-free” calibration to allow electronic adjustments for related functions, using external known reference standard and using onboard ADC to have automatic calculation of affected calibration constants by embedded processor. All information posted here is hosted just for education purposes and provided AS IS. Printers with a document feeder: Load the original according to the feeder paper guides. So I removed LEDdisplay manual hp3455 and here’s the sad story about it: Image 59: LCDdisplay removed from assembly Rear side of the LCDhave metal shield, which is obviously not transparent.
Results in the end of this article were achieved after all these improvements completed and installed. Most of keypresses do not change any behavior, and some cause random indication changes. Probably all of the HP 3457A owners are “very happy” when trying to see what the heck is small LCD showing, especially in dim environment conditions.
For DC voltage sources of stable 0. The HP 34401A is a 61⁄2-digit, high-performance digital multimeter. Donation request: We have so many large format manuals to scan. As you can see, modifications can he. Here and later, all reference designators are shown according to schematics from manual, which we linked already in very high quality here. So I’ve decided to do my best without taking everything apart, and keeping external parts to minimum. Its combination of bench-top and system features makes this multimeter a versatile solution for your measurement needs now and in the future.
To measure ADC’s noise (line ADConly) JM101 jumper was desoldered and test points TP5 and TP2 were shorted together. Manual Part Number: Revision Date: HP References in this Manual This manual may contain references to HP or Hewlett-Packard. hewlett-packard company makes no warranty of any kind with regard to this manual, including, but not limited to, the implied warranties of merchantability, non-infringement and fitness for a particular purpose. This means that disassembly and cover removals not required for adjustment. Visual inspection did not show any serious problems, so we started diagnostics and repair from power supply. DIGITAL MULTIMETERS High Performance 5 1/2 to 3 1/2 Digit Bench DMM HP Models 3468A/B Five functions Electronic calibration 5 1/2 to 3 1/2 digits. RMS deviation was calculated, in ppm scale from the average. Would be great to have free digit, since we manage to improve stability and performance of meter, adding sense for extra resolution.
Image 49: Input amplifier ready for testing Meter was connected to PC over GPIBinterface to capture data over time periods. It does use a LM199A or LM399A voltage reference - HP used house part numbers on a lot of their products. This meter was also first in HP system-level flagship line to feature integrated measurements manual hp3455 for both direct and alternating current and alternating voltage frequency and period. Best-case “optimistic” data in 10 minute time length was selected from captured data. Intel® Celeron® Processor J3455 (2M Cache, up to 2. It’s always a good start, as in old instruments power is often first point of failure, due to aged capacitors and faults in power components.
So we get 600 samples, where each point processed from sum of 6½-digit reading and 7th digit adder. Would like to note, that hp3455 all measurements were done in hobbyist environment, without expensive metrology-grade instrumentation, and likely affected by external interference, temperature variations and such. Repair work log and restoration project for Hewlett-Packard (later Agilent Technologies, now Keysight Technologies) Model 3456A 6½-decade system multimeter is covered in this article.
Discussion is very welcome thru comment section or at our own IRC chat server: irc. Operation Manual (1) Service Manualof 3 Sort: 3468A Digital Multimeter Service Guide. Also ambient temperature, humidity and pressure variations affect the stability and noise performance of the meter as well.
Microfiche Part No. How did that happened? We learned few interesting things about 6½-digit HP 3457A meter, which had some unusual design choices. Do not be tricked into paying for a manual that is available here for free. 5 Hz, getting reading every 2 seconds. The Installation, Operating, and HP-IS Program listed here supercede any previously published.
Web-interface for access mirrored on this page. This is the BAMA archive.
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