Leader LCR-740 LCR Meter
Manufacturer:
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Model:
LCR-740
Date:
Category:
Group:
Description:
LCR Bridge
Information
The Leader LCR-740 is designed for measurement of
resistance, capacitance and inductance over a wide range.
The instrument is completely self-contained, including
a battery for measurements of R (DC); as well as, C and L
with a 1kHz Oscillator and null detecting Amplifier system.
A 3-digit readout is used for measured values. Input
connections are provided for use of external DC or AC
(50Hz-40kHz) sources, and for an AC Adapter (LPS-169).
Manual type:
Service and User Manual
Pages:
17
Size:
3.86 Mbytes (4046324 Bytes)
Language:
english
Revision:
Manual ID:
83101.5k
Date:
Quality:
Scanned document, all readable.
Upload date:
2017 09 11
MD5:
6e3618755a1a945a3bf0f549339ecad0
Downloads:
2061
Information
1. DESCRIPTION
1.1 General
...
1.2 Specifications
... 1
1.3 Controls and Connectors
... 3
2. OPERATION
2.1 Precautions in Use
... 6
2.2 Readout of Measured Values
... 7
2.3 Use of “1.00” Setting of NORMAL switch ... 7
2.4 Resistance (DC) Measurements
... 8
2.5 Capacitance Measurements
... 10
2.6 Inductance Measurements
... n
2.7 Measurement of Residuals
... 16
2.7.1 Residual Resistance
... 16
2.7.2 Residual Inductance
... 16
2.7.3 Residual Capacitance
... 17
2.8 Use of External Measuring Sources
... 17
2.8.1 General
... , ... 17
2.8.2 DC Resistance Measurements ... 18
2.8.3 C and L Measurements ... 19
2.8.4 Determination of D and Q ... 22
2.9 Measurement of Large Capacitances ... 22
2.10 Other Applications
... 22
2.10.1 Transformer Measurements ... 22
2.10.2 Tolerance, or Error,
Measurements ... 23
2.11 Battery Replacement
... 24
3. PRINCIPLE OF OPERATION
3.1 Bridge Circuits
... 24
3.2 Bridge Sources
... 2g
3.3 Null Detection
... 27
SCHEMATIC DIAGRAM ...
Manual type:
User Manual with schematics
Pages:
17
Size:
3.12 Mbytes (3270276 Bytes)
Language:
english
Revision:
Manual ID:
83101.5K
Date:
Quality:
Scanned document, all readable.
Upload date:
2012 12 28
MD5:
823f7008d91d879d649f6250c282f42b
Downloads:
2662
Manual type:
User Manual with schematics
Pages:
26
Size:
2.74 Mbytes (2875838 Bytes)
Language:
german
Revision:
Manual ID:
Date:
Quality:
Electronic document, no scan, very well readable.
Upload date:
2023 01 01
MD5:
f9a20cdd7fcd7245a8e801718272c52f
Downloads:
210
Information
BESCHREIBUNG:
Allgemeines ...
Beschreibung ...
Bedienelemente und Anschlüsse ...
BETRIEB:
Vorsichtsmaßnahmen bei der Verwendung ...
Ablesen der Messwerte ...
Verwendung des „Normal +1.00 Schalters“ ...
Widerstandsmessungen ...
Kapazitätsmessungen ...
Induktivitätsmessungen ...
Messungen der Abweichung ...
2.7.1 Restwiderstand ...
2.7.2 Restinduktivität ...
2.7.3 Restkapazität ...
Verwendung von externen Messquellen ...
2.8.1 Allgemeines ...
2.8.2 DC-Widerstandsmessungen ...
2.8.3 C und L Messungen ...
2.8.4 Bestimmung von D und Q ...
Messung großer Kapazitäten ...
Andere Anwendungen ...
2.10.1 Transformatormessung ...
2.10.2 Toleranz oder Fehler, Messungen ...
2.11 Batteriewechsel ...
Funktionsprinzip:
Brückenschaltungen ...
Brücke Quellen ...
Null-Erkennung ...
Schaltplan ...