Model LCR55A
Inductance, Capacitance and Resistance Tester |
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The ultimate component checker
measures Inductance, Capacitance, Resistance, Transistors, Diodes
and Microwave diodes. |
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Features
- Plug-in test slots and test leads with threaded alligator
clips
- Oversized, digital display
- Data Hold and Max Hold
- "Zero Adjust" Pot for Ohms
- Low Battery Indication
- Auto-Power Off
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Resistance |
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Function |
Range |
Accuracy |
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Measurement |
20Ω |
± 1.2% of Rdg (zero
adjust) |
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200Ω |
±(0.5% of Rdg + 3
digits) |
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2kΩ to 2MΩ |
±(0.5% of Rdg + 1
digit) |
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20MΩ |
±(2.0% of Rdg + 2
digits) |
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Resolution |
10mΩ in 20Ω range |
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Open Circuit Voltage |
20Ω range |
6.5V DC |
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200Ω range |
3.0V DC |
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All other ranges |
1.2V DC |
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Continuity |
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Audible Indication |
2kΩ range |
Tone at R<30Ω |
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Response Time |
800mS approx. |
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Diode Test |
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Test Current |
1mA (approximately) |
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Test Voltage |
3.0V DC |
±(1.5% of Rdg + 1
digit) |
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Display |
Forward junction voltage |
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Microwave Diode Test |
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Test Current |
0.6mA (approximately) |
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Test Voltage |
7.0V DC (typical) |
±(3.0% of Rdg + 1
digit) |
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Display |
Forward junction voltage |
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Capacitance |
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Function |
Range |
Accuracy |
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Measurement
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200pF to 200nF |
±(1.0% of Rdg + 1
digit) |
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2µF to 200µF |
±(2.0% of Rdg + 1
digit) |
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200µF to 1000µF |
±(3.0% of Rdg + 3
digits) |
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1000µF to 2000µF |
±(5.0% of Rdg + 5
digits) |
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Note: in lower ranges,
subtract 6 points residual offset reading from result |
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Test Frequency |
200pF to 2µF |
1000Hz |
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20µF to 200µF |
100Hz |
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2000µF |
10Hz |
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Temperature Coefficient |
<0.5µF |
0.1%/°C |
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>0.5µF |
0.2%/°C |
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Inductance |
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Function |
Range |
Accuracy |
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Measurement |
200µH |
±(5.0% of Rdg + 30
digits)* |
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2 to 200mH |
±(3.0% of Rdg + 20
digits)* |
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2mH to 200H |
±(5.0% of Rdg + 20
digits)* |
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| Note* For values of Q
≤ 7 |
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Test Frequency |
200µH to 2H range |
1000Hz |
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20H to 200H range |
100Hz |
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Temperature Coefficient |
<0.5H |
0.2%/°C |
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>0.5H |
0.5%/°C |
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Transistor Test |
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hFE Range |
0 to 1000 |
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hFE Base Current |
3µA approx. |
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hFE Voltage C-E |
3.0V DC approx. |
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Iceo Range, Leakage Current |
10nA to 20µA |
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Overload Protection |
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Resistance |
350V DC or AC RMS |
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Capacitance |
0.1A/250V fast acting fuse |
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Continuity |
350V DC or AC RMS |
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Diode Test |
350V DC or AC RMS |
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Micro Wave Diode Test |
350V DC or AC RMS |
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Inductance |
0.1A/250V fast acting fuse |
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General Specifications |
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Display |
3-1/2 digit (LCD), maximum reading of 1999 |
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Display Update Rate |
2.5/sec, nominal |
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Power Supply |
9 Volt Alkaline battery |
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Battery Life |
200-hours |
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Operating Temperature |
-20°C to 50°C (32°F
to 122°F), <70% R.H. |
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Storage Temperature |
-20°C to 60°C (-4°F
to 140°F), <80% R.H. battery removed |
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Dimensions
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183mm (L) x 79mm (W) x 38mm (D)
7.2" (L) x 3.1" (W) x 1.5" (D) |
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Weight |
311 gms (11 oz) including battery |
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Warranty |
One-year |
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Included Accessories |
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Test leads, alligator clips,
battery (installed), spare fuse and user's manual. |
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