Equipment information:

Sencore FE20 Level Meter
Manufacturer:
Sencore
Model: FE20
Date: 1970
Category: Measurement instruments
Group: Level Meter
Description: HI LO Meter
Information:
                                    As the state of the art in electronics progresses, more
transistors, FETs,
and integrated circuits are being used in radio, television,
and industrial
markets. Sencore engineers have kept up with todays pace and
have developed
a new Field Effect meter to meet the more demanding requirements
of solid state and integrated circuit servicing.
The FE20 HI-LO meter features new low AC and DC ranges of .
1 volts full
scale and alow power ohms circuit allowing for the first
time accurate re sistance
measurements in transistor and integrated circuits.
Just compare these features and see why the FE20 is the most
advanced
meter on the market today:
* High input impedance on all AC and DC ranges (15 megohm
DC, 12 megohms
AC).
* True peak to peak AC ranges.
* Zero center ranges on DC for solid state servicing.
* Db scale for audio and lab work.
* DC current ranges for general testing.
* Low power (low applied voltage) ohms ranges for solid
state servicing.
* Mirrored scale meter for greater accuracy in readings.
* Meter protected from overloads.
* Circuits protected from accidental application of wrong
voltages.
* All steel carrying case with cover for greater durability
and portability.
* Long life "C" cell power.

These manuals are available for the above equipment:

Sencore -- FE20 -- Service Manual
File name: Sencore-5927-Manual-Page-1-Picture
Manual Type: Service Manual
Pages: 23
Size: 970.15 Kbytes (993434 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date: 17 June 1970
Quality: Scanned document, all readable.
Upload date:
MD5: 75302a8f312e44f23cc5d42a6be4096e
ed2kID: 94d2dd0eeb1945a0c7a77b308a0821cc
Downloads: 98 since 04 May 2014
Information:
SAFETY
PRECAUTIONS.....................................................................................
2
DESCRIPTION......................................................................
................................. 4
SPECIFICATIONS................................................................................................
4
OPERATION...........................................................................................................
6
Shielded Test Lead and Probe for the HI-LO Meter
...................... 6
Controls on the HI-LO
Meter..................................................................
6
Battery Installation and Testing
........................................................... 7
Measuring DC
Voltage..............................................................................
7
Measuring DCV with a Zero Center Scale
......................................... 8
Measuring DC
Current.............................................................................
8
Measuring AC
Voltage.............................................................................
8
Measuring Resistance (HI POWER
OHMS)......................................... 9
Measuring Resistance (LO POWER
OHMS)......................................... 9
Measuring Resistance of
Thermistors................................................ 9
Measuring DC High Voltage
...................................................................
10
Measuring Decibels (db)
..........................................................................
10
Measuring AC
Current.............................................................................
12
Measuring small Leakage
Current.......................................................
13
Overload
Protection.....................................................................................
13
CIRCUIT
DESCRIPTION..................................................................
.................. 14
General...........................................................................................................
14
DC
Voltage........................................................................................
14
DC
Current....................................................................................................
14
Resistance (HI POWER).................................
............................................ 14
Resistance (LO
POWER)..........................................................................
15
AC
Voltage....................................................................................................
15
MAINTENANCE....................................................................................................
15
Introduction....................................................................................................
15
Disassembly
Instructions..........................................................................
15
Calibration of the HI-LO Meter
........................................................... 16
Building a Meter Calibrator
...................................................................
17
Trouble
Chart................................................................................................
18
Schematic and Parts List (Separate Sheet)
ILLUSTRATIONS AND CHARTS
Fig. 1 db Correction
Chart..................................................................
11
Fig. 2 Voltage vs. Power Chart
....................................................... 11
Fig. 3 AC Current
Adapter...................................................................
12
Fig. 4 Measuring small Leakage
Currents..................................... 13
Fig. 5 P. C. Board
Layout......................................................................
16
Fig. 6 Calibrator for HI-LO
Meter.................................................... 17
Sencore-5927-Manual-Page-1-Picture
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