The Sencore FE160 Senior Field Effect Hi-Lo Meter service manual provides detailed instructions for setting up, operating, and troubleshooting the device, including using shielded test leads, selecting measurement ranges, and ensuring safety during high voltage testing. It also includes maintenance guidelines, calibration procedures, and a troubleshooting chart to assist technicians in diagnosing and resolving common issues with the meter.
Manual Overview
The Sencore FE160 Senior Field Effect Hi-Lo Meter service manual provides detailed guidance on operating, troubleshooting, and maintaining the device. For troubleshooting, a comprehensive trouble chart is included to assist technicians in diagnosing issues effectively. The manual emphasizes the importance of safety precautions, especially when dealing with high voltages, and advises using an isolation transformer and discharging capacitors before testing. Calibration instructions are provided, including steps to build a meter calibrator for accurate measurements. The manual also covers board-level guidance with a detailed circuit description and PC board layout. For diagnostics, the manual includes specifications for various measurement ranges, such as DC and AC voltages, currents, and resistance, ensuring technicians can verify the meter’s accuracy. Additionally, it provides instructions for converting the meter for 230-volt operation and includes a section on measuring small leakage currents. The manual is essential for technicians seeking to ensure precise operation and maintenance of the FE160 meter.
Quick Issues Covered
- Troubleshoot power-up failures using the detailed trouble chart.
- Calibrate FE160 with step-by-step calibration instructions.
- Use schematics for effective circuit tracing and component identification.
Overview
The Sencore FE160 Senior Hi-Lo Field Effect Meter is designed for accurate measurement of electronic components, particularly integrated circuits, transistors, and FETs. It features low voltage ranges and low applied voltage on ohms ranges, allowing for in-circuit resistance readings without causing transistor or diode conduction. The meter includes AC and DC voltage and current ranges, true peak-to-peak AC ranges, and dB scales for audio work. It has a large 7-inch mirrored scale for easy reading and operates on AC power, eliminating the need for batteries. The FE160 is equipped with a shielded test lead and probe for accurate AC voltage measurements in the presence of strong electric fields. The manual covers safety precautions, specifications, operation instructions, maintenance, circuit description, and troubleshooting.
Specifications
- DC VOLTS
- 10 positive ranges: 0-0.1, 0.3, 1, 3, 10, 30, 100, 300, 1000, 3000
- 10 negative ranges: same as positive
- Input resistance: 15 megohm, shunted by 90 pf in probe
- Accuracy: ±1%
- AC rejection: 30 db min
- AC VOLTS
- 9 PP ranges
- 9 RMS ranges
- Input resistance: 12 megohm shunted by 90 pf
- Frequency response: ±1 db 10Hz to 500KHz
- Accuracy: ±2.5%
- DC Current
- 10 positive ranges: 0-30uA, 100, 300, 1mA, 3, 10, 30, 100, 300, 3A
- 10 negative ranges: same as positive
- Internal voltage drop: 0.1V
- Accuracy: ±2%
- AC Current
- 10 RMS ranges: 0-30uA, 100, 300, 1mA, 3, 10, 30, 100, 300, 3A
- Internal voltage drop: 6.1V RMS
- Accuracy: ±3%
- Ohmmeter
- 8 high power ranges (1.5V): 0-600 ohms, 6K, 60K, 600K, 6M, 60M, 600M
- 7 low power ranges (0.08V): 0-600 ohms, 6K, 60K, 600K, 6M, 60M, 6000M
- Accuracy: ±2 degrees arc
- Decibel (db)
- 9 ranges: -20 db, -10, 0, 10, 20, 30, 40, 50, 60
- Reference: 1mV into 600 ohm
- General
- Meter: 7" 500 microamp ±2%
- AC line operation: 100-130 VAC 50-60Hz
- Convertible to 230V
- Weight: 6 pounds
- Dimensions: 9" x 7 1/2" x 6"
Controls & Indicators
The FE160 Senior Field Effect Meter has simple front-panel controls. It includes a Function switch for selecting the desired measurement function and a Range switch for selecting the measurement range. There are also two additional controls: the OHMS ADJ for adjusting resistance measurements and the ZERO ADJ for zeroing the meter.
Installation / Setup
Refer to the PDF for details.
Operation
The operation of the FE160 Senior Hi-Lo Field Effect Meter involves using a shielded test lead and probe, which is equipped with a BNC type connector for easy replacement. The probe includes a 100K isolation resistor and switch to isolate cable capacity in critical circuits. For most measurements, the probe switch is left in the NORM position, but it can be switched to ISOLATION to isolate cable capacity during specific measurements, such as low power ohms function. The ISOLATION position should only be used for DC voltage measurements and AC voltages at no more than 60 Hertz to avoid errors.
The controls on the FE160 are designed for simplicity. The user selects the desired function on the Function switch and the desired range on the Range switch. There are two additional front panel controls: the OHMS ADJ and the ZERO ADJ. The Range switch is a push button used to select the range for measuring current, voltage, or resistance.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
When testing electronic equipment, there are several safety precautions to observe:
1. Use an isolation transformer for equipment with the chassis tied to one side of the AC power.
2. Remove power when making test lead connections to high voltage points. If power cannot be removed, avoid contact with other equipment or metal objects, place one hand in your pocket, and stand on an insulated floor to reduce shock risk.
3. Discharge filter capacitors before connecting test leads to them, as they can store dangerous charges.
4. Ensure equipment is in good condition; broken or frayed test leads can expose the technician to dangerous potentials.
5. Remove test leads immediately after completing a test to reduce shock risk.
6. Do not work alone on hazardous circuits; always have another person nearby in case of an accident. Even minor shocks can lead to serious accidents, such as falling against equipment or contacting higher voltages.
Download 2 Service manual (PDF – 641.3 KB)
Service manual for Sencore FE160 Senior Field Effect Hi-Lo Meter Model 2. Guides technicians in troubleshooting and calibration. PDF, 641.3 KB.
- Brand: Sencore-fe160-senior-field-effect-hi-lo-meter-operation-service-manual
- Model: 2
- Type: Service manual
- File size: 641.3 KB
Overview
Brief overview of the product.
Specifications
- Key spec 1
- Key spec 2
Controls & Indicators
Control panel/button layout.
Installation / Setup
- Step 1…
- Step 2…
Operation
Basic usage, modes, cycles.
Troubleshooting & Error Codes
| Issue / Code | Fix |
|---|---|
| Example | How to fix… |
Safety & Warnings
- Important warning…
Downloads
Download 2 service manual (PDF)
Sencore FE160 Senior Field Effect Hi-Lo Meter Overview
The Sencore FE160 Senior Field Effect Hi-Lo Meter is a precision electronic testing instrument designed to measure the characteristics of field effect transistors (FETs). It provides accurate readings of both high and low-level parameters, making it an essential tool for technicians and engineers working in electronics repair, design, and quality control. This device simplifies the testing process by offering quick and reliable diagnostics of FET components, ensuring optimal performance and functionality in electronic circuits.
Main Features and Specifications
- Measures field effect transistor parameters including gate threshold voltage and leakage current
- Dual-range operation for high and low-level measurements
- Clear analog display with easy-to-read scales
- Compact and portable design suitable for field and bench use
- Battery-powered operation for convenience and mobility
- Durable construction with protective casing
- Compatible with a wide range of FET types and models
Basic Usage and Operation Tips
To use the FE160 Hi-Lo Meter, first ensure the device is properly powered with fresh batteries. Connect the test leads to the FET terminals according to the manual’s wiring diagram. Select the appropriate measurement range (high or low) based on the expected parameter values. Observe the meter needle to determine the transistor’s condition. For accurate results, make sure the test leads have good contact and avoid touching conductive parts during measurement. Always calibrate the meter periodically as described in the manual to maintain precision.
Troubleshooting and Maintenance Notes
If the meter fails to provide stable readings, check the battery voltage and replace batteries if necessary. Inspect test leads for damage or corrosion and replace if worn. Clean the meter’s contacts and casing regularly with a soft, dry cloth to prevent dust buildup. Avoid exposure to extreme temperatures or moisture, which can affect performance. If the device requires calibration or repair beyond basic maintenance, refer to authorized service centers or the detailed service procedures outlined in the manual.
Safety Reminder
Always disconnect the device from any circuit before testing to prevent electric shock or damage. Use the meter only within its specified voltage and current limits. Handle test leads carefully and avoid short circuits. Follow all safety guidelines provided in the manual to ensure safe and effective operation of the Sencore FE160 Senior Field Effect Hi-Lo Meter.