Hewlett Packard - 434A - Level Meter
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Hewlett Packard 434A
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Uitrusting:
434A
Datum:
1959
Categorie:
Groep:
Subgroep:
Informatie
Model 434A is a power meter which bridges the gap between
bolometric methods and conventional calorimetric methods
while retaining the advantages of both. Bolometric methods
of power measurement using the self-balancing principle are
fast, but the upper limit of power measurement is quite low
(10 to 100 mw). On the other hand, conventional calormetric
methods are slow, and are not suitable at powers less than
about 1 watt.
By combining the self-balancing principle with a
calorimetric device, fast response has been obtained over
the range from 1 milliwatt to 10 watts.
1 Handmatig
Service- en gebruikershandleiding
Handleidingen type:
Service- en gebruikershandleiding
Pagina's:
40
Grootte:
2,5 MB
Taal:
engels
Revisie:
Handmatig-ID:
434A001
Datum:
januari 1959
Kwaliteit:
Gescand document, deels slecht leesbaar, deels niet leesbaar.
Upload datum:
30 december 2017
MD5 MD5:
931f42c0-4d58-9161-331a-671b86fba64b
Informatie
Serial 151 and above.
SECTION I GENERAL DESCRIPTION Page
1-1
Introduction...1-1
1-2
Specifications...1-1
1-3 Damage in
Transit...1-1
1-4
Installation...1-1
SECTION II OPERATING INSTRUCTIONS
2-1
Introduction...II
- 1
2-2 Controls and
Terminals...II - 1
2-3 Operating
Precautions...n-1
2-4 Filling the
Reservoir...II - 1
2-5 Operating
Procedure...II - 1
2-6 Attainable
Accuracy...II - 1
SECTION III THEORY OF OPERATION
3-1
Introduction...Ill
- 1
3-2 Over-all Operation
...Ill - 1
3-3 Input
Bridge...in - 1
3-4 AC Amplifier ynchronous Detector, and Filter Ill - 2
3-5 DC Amplifier and
Clamp...Ill - 2
3-6 Range
Switch...Ill - 2
3-7 Meter
Circuit...Ill - 2
3-8 Oscillator Ill
- 2
3-9 Power Supply and Voltage
Regulator...in - 3
3-10 Oil
System...HI - 3
SECTION IV MAINTENANCE
4-1
Introduction...IV-1
4-2 Cabinet Removal
...IV-1
4-3 Periodic
Maintenance...IV-1
4-4 Conversion to 230 Volt
Operation...IV-1
4-5 Tube Replacement
Chart...IV-1
4-6 Cleaning the Oil Filter IV - 2
4-7 Power Supply Adjustment...IV-2
4-8 Oscillator IV-2
4-9 Synchronous
Detector...IV-2
4-10 Adjust DC
Zero...IV-3
4-11 Adjust Phase
Balance...IV-3
4-12 Adjust Bridge
Balance...IV-3
4-13 Clamp Operation Check ...IV-3
4-14 Over-all
Check...IV-5
4-15 Measuring Compensated
Error...IV-5
4-16 Trouble
Location...IV-6
4-17 Measuring
Gain...IV-6
4-18 Excessive Compensated
Error...IV-6
4-19 Removing Head Box
Assembly...IV-6
SECTION V TABLE OF REPLACEABLE PARTS
5-1 Table of Replaceable Parts... V-l
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