HP 410C manual HEWLETT-PACKARD Electronic Voltmeter

	This manual contains copyrighted material prepared by the Hewlett-Packard Co.
	TM 11-6625-1614-15
TECHNICAL MANUAL	HEADQUARTERS
	DEPARTMENT OF THE ARMY
No. 11-6625-1614-15)	W A S H I N G T O N , DC, 28 August 1 9 6 7

ORGANIZATIONAL, DS, GS, AND DEPOT MAINTENANCE MANUAL

HEWLETT–PACKARD ELECTRONIC VOLTMETER

			MODEL 410C
		(NSN	6625-00-969-4105)
Section				Page
I	GENERAL INFORMATION -------------------------------------------------------------------------------------------			1-1
	1-A.1.	Scope --------------------------------------------------------------------------------------------------------		1-1
	1-A.2.	Index of Publications ------------------------------------------------------------------------------------		1-1
	1-A.3.	Maintenance Forms, Records, and Reports ---------------------------------------------------------		1-1
	1-A.4.	Reporting Errors and Recommending Improvements --------------------------------------------		1-2
	1-A.5.	Reporting Equipment Improvement Recommendations (EIR)---------------------------------		1-2
	1-A.6.	Administrative Storage ----------------------------------------------------------------------------------		1-2
	1-1.	Description -------------------------------------------------------------------------------------------------		1-4
	1-4.	Accessories Available ------------------------------------------------------------------------------------		1-5
II	INSTALLATION ----------------------------------------------------------------------------------------------------------			2-1
	2-1.	Inspection ---------------------------------------------------------------------------------------------------		2-1
	2-3.	Installation -------------------------------------------------------------------------------------------------		2-1
	2-5.	Rack Mounting --------------------------------------------------------------------------------------------		2-1
	2-9.	Three - Conductor Power Cable ----------------------------------------------------------------------		2-1
	2-12.	Primary Power Requirements --------------------------------------------------------------------------		2-1
	2-14.	Repackaging for Shipment ------------------------------------------------------------------------------		2-2
III	OPERATION	---------------------------------------------------------------------------------------------------------------		3-1
	3-1.	Introduction ------------------------------------------------------------------------------------------------		3-1
	3-3.	Adjustment of Mechanical Zero----------------------------------------------------------------------		3-1
	3-5.	Front and Rear Panel Description ---------------------------------------------------------------------		3-1
	3-7.	Operating Procedures ------------------------------------------------------------------------------------		3-1
	3-9.	DC Voltage Measurements (Figure 3-2)-------------------------------------------------------		3-1
	3-11.	DC Current Measurements (Figure 3-3)-------------------------------------------------------		3-1
	3-13.	AC Voltage Measurements (Figure 3-4)-------------------------------------------------------		3-1
	3-15.	Precautions When Measuring AC Voltage ----------------------------------------------------		3-1
	3-28.	Negative Pulses --------------------------------------------------------------------------------------------		3-4
	3-31.	Measuring Resistance (Figure 3-7)--------------------------------------------------------------------		3-4
	3-33.	Measuring DC Nano-Ampere Current (Figure 3-8)-----------------------------------------------		3-4
IV	THEORY OF OPERATION ---------------------------------------------------------------------------------------------			4-1
	4-1.	Overall Description ---------------------------------------------------------------------------------------		4-1
	4-4.	Circuit Description ---------------------------------------------------------------------------------------		4-1
	4-5.	Input Network ---------------------------------------------------------------------------------------		4-1
	4-16.	Modulator -	Demodulator ------------------------------------------------------------------------	4-1
	4-23.	The Feedback Network ----------------------------------------------------------------------------		4-2
V	4-27.	Power Supply ----------------------------------------------------------------------------------------		4-2
	MAINTENANCE ----------------------------------------------------------------------------------------------------------			5-1
	5-1.	Introduction -----------------------------------------------------------------------------------------------		5-1
	5-3.	Test Equipment Required -------------------------------------------------------------------------------		5-1
	5-5.	Performance Checks -------------------------------------------------------------------------------------		5-1

Change i