Equipment information

Vishay Instruments BAM-1 Level Meter
Manufacturer
Vishay Instruments
Model BAM-1
Date 1976
Category: Measurement instruments
Group Level Meter
Description Bridge Amplifier and Meter
Information
                                    The BAM-1 Bridge Amplifier and Meter is a battery-
operated instrument used primarily to measure the
-output of resistance-type strain gages or transducers.
Static outputs can be read directly on the self-contained
deflection meter or an external recorder; dynamic
outputs up to 20 kHz can be read on an oscilloscope.	.

Briefly, the BAM-1 consists of:

a)	A battery to supply bridge excitation
        up to 12 Vdc;

b)	Bridge completion and circuits to achieve
        initial bridge balance;

c)	Shunt-calibration circuits;

d)	A fixed-gain dc differential amplifier (with
         battery power); and

e)	A linear 4½" center-zero readout meter.

1.2	The principle features of the BAM-1 include:

... Operation by self-contained batteries (115 and 230
Vac Power Packs optional).

... Ultra-stable dc amplifier with a gain of 250,
flat up to 20 kHz (100 kHz in Model BAM-1B).

... Adjustable system gain from ± 100 to 15,000 µe
full scale (one active 120Ω gage).

... Built-in shunt calibration from 20 to 20,000µe
in  10 steps (one active gage).

... Amplifier can be used independently for thermo
couples, etc.

These manuals are available for the above equipment:

Manual Type Service and User Manual Vishay-4315-Manual-Page-1-Picture
Pages 12
Size 674.53 Kbytes (690714 Bytes)
Language english
Revision
Manual-ID/Number
Date 1976
Quality Scanned document, all readable.
Upload date
MD5 6eaf71fac6dcfde622eef2beeed6dca8
Downloads 268 since 01 April 2013
Information
This Manual applies specifically to BAM-l's above serial
number 14600. The Operating Procedure applies to essentially
all BAM-1 "s including those made by Vishay Instruments
or Ellis Associates, regardless of date of manufacture,
except for Quarter Bridge hook-up and other very minor
discrepancies.

SECTION 1 : DESCRIPTION	Page

GENERAL......................................................................3

SPECIFICATIONS..................................................................3

CONTROLS.......................................................................4

SECTION 2: OPERATING PROCEDURE

INPUT CONNECTIONS...............................................................5

WIRING CONSIDERATIONS...........................................................5

INITIAL ADJUSTMENTS.............................................................6

CALIBRATION CALCULATIONS........................................................6

STATIC MEASUREMENTS WITH PANEL METER............................................7

DYNAMIC MEASUREMENTS........................................ .................8

NOISE..........................................................................9

WARRANTY.........................................................................10

SECTION 3: SERVICING DATA

BATTERY REPLACEMENT............................................................11

TROUBLE SHOOTING GUIDES.........................................................II

ADJUSTMENTS....................................................................11

COMPONENT REPLACEMENT..........................................................11

SCHEMATIC...............................1......................................12
Vishay-4315-Manual-Page-1-Picture


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