Hewlett Packard - 413AR - Level Meter
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Hewlett Packard 413AR
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Equipment:
413AR
Date:
1962
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Information
The Model 413A DC Null Voltmeter is a zero-center
dc voltmeter with end scale ranges from 1 mv to 1000 volts
in a 1-3-10 sequence. Input impedance varies from 10 megohms
to 200 megohms depending on the setting of the RANGE (VOLTS)
switch. The input terminals are isolated from the cabinet
and ground permitting operation from references up to 500
volts dc or 130 volts ac from ground potential.
INDICATORS. In addition to the conventional meter,
which has both a normal (± 10% of full scale) and expanded
(± full scale) range of zero adjustment, the Model 413A has
amplifier output connectors which provide an output voltage
proportional to meter deflection. This feature makes it
possible to use the Model 413A as a dc amplifier for use
with thermocouples, etc., or to use it in conjunction with a
recorder to obtain permanent records without the need for
constant monitoring.
USES. The Model 413A may be used for any application
that calls for a dc null voltmeter. High input impedance of
the instrument makes it especially valuable for resistance
bridge measurements. The high voltage gain and the
exceedingly low drift and noise make the Model 413A an ideal
instrument for many control applications, particularly where
the system must be left unattended for long periods of time.
1 Manual
Service and user manual
Manual type:
Service and user manual
Pages:
41
Size:
5.9 MB
Language:
english
Revision:
Manual-ID:
00413-90003 01138-5
Date:
November 1966
Quality:
Scanned document, all readable.
Upload date:
May 31, 2020
MD5:
17bb1f88-9d72-107f-fdc2-6cbfbee9792b
Downloads:
498