Equipment information
Associated Research Incorporated 2851 Level Meter
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Model:
2851
Date:
1964
Category:
Group:
Description:
Megohmmeter
Information
PRINCIPLES OF OPERATION: The megohmmeter measures the
insulation resistance
OF THE ITEM UNDER TEST BY METERING THE CURRENT OUTPUT OF THE
HIGHLY REGULATED DC SUPPLY WITH A BALANCED BRIDGE Amplifier.
THE 5O/5OO V0LT SUPPLY USES LONG LIFE SILICON RECTIFIERS AND
IS REGULATED AGAINST LINE VOLTAGE FLUCTUATION FROM 100 TO
130 VOLTS. A CATHODE FOLLOWER ELECTRONIC REGULATOR HOLDS THE
OUTPUT VOLTAGE STEADY UNDER VARYING LOAD CONDITIONS, REDUCES
RIPPLE, AND ASSURES MAXIMUM READING STABILITY. THE HIGH GAIN
BALANCED BRIDGE Amplifier USED IN THE METERING CIRCUIT IS
POWERED FROM AN INDEPENDENT DC SUPPLY WHICH ALSO USES
SILICON RECTIFIERS AND IS REGULATED AGAINST LINE VOLTAGE
FLUCTUATIONS. Electronic overload circuits protect the
constant voltage supply and THE 4-1/2 INCH WIDE VIEW
INDICATING METER.
Modular construction through the use of latest printed
circuit board techniques and internal adjustments to
compensate for tube replacement PROVIDE for ease of
maintenance and field repair.
Manual Type:
Service and User Manual
Pages:
12
Size:
370.68 Kbytes (379574 Bytes)
Language:
english
Revision:
Manual-ID:
P15412
Date:
1964 01 01
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
2017 10 21
MD5:
4b658b56d2766c08ffda2496a69f39d6
Downloads:
722