The BK Precision manual provides detailed instructions for setting up and operating the Model 510B Transistor Tester and Model 520C Semiconductor Tester, emphasizing safety precautions to prevent electrical shock during testing. It also includes troubleshooting tips, such as ensuring power is removed from circuits before testing and using the correct test leads to avoid damaging the tester or the device under test.
Manual Overview
The BK Precision Model 510B Transistor Tester and Model 520C Semiconductor Tester are designed for both in-circuit and out-of-circuit testing of transistors and other semiconductor devices. The testers employ a high-current, low duty-cycle pulse technique for effective testing in the presence of shunting circuitry, and a low-current drive system for identifying device terminals. The Model 520C offers additional features such as measuring reverse leakage current and identifying silicon or germanium transistors.
For troubleshooting, the testers provide a GOOD/BAD test for transistors, FETs, and SCRs, and can identify device types and lead configurations. The Model 520C includes logarithmic leakage LEDs for displaying a wide range of leakage currents. Calibration and adjustments are minimal due to the human-engineered panel design, which requires only three switches for operation. Error diagnostics include automatic polarity indication and an audible tone for good devices. Safety precautions emphasize disconnecting power from the circuit under test, especially for “hot chassis” equipment, to prevent electrical shock and equipment damage. The testers are powered by a 9V alkaline battery or an optional AC/DC adapter.
Quick Issues Covered
- Diagnose power-up failures with Model 510B and 520C testers.
- Identify and resolve error codes during in-circuit testing.
- Use schematics for circuit tracing and troubleshooting.
Overview
The B & K Precision Model 510B Transistor Tester and Model 520C Semiconductor Tester are designed for both in-circuit and out-of-circuit testing of transistors. They feature a high-current, low duty-cycle pulse technique for testing transistors amidst shunting circuitry, and a low-current drive system for identifying device terminals. The instruments are user-friendly, requiring minimal control manipulation, and are equipped with a 9V alkaline battery. The Model 520C includes additional features for measuring leakage currents and identifying silicon or germanium transistors.
Specifications
- SIZE: 7.5” x 4.0” x 2.0”
- WEIGHT: 1 lb.
- POWER REQUIREMENTS: 9 VDC alkaline battery (supplied disconnected) or 9 VDC AC/DC adapter (optional).
- IN-CIRCUIT:
- GOOD/BAD test for transistors, FETs or SCRs.
- Identifies transistor as NPN or PNP and FET as N or P channel.
- Identifies gate lead of FET or base lead of transistor (HI drive).
- Identifies all leads of transistor when using LO drive.
- Identifies all leads of SCRs.
- Identifies SILICON or GERMANIUM transistors. (Model 520C only)
- OUT-OF-CIRCUIT:
- GOOD/BAD test for transistors, FETs or SCRs.
- Identifies transistor as NPN or PNP and FET as N or P channel.
- Identifies gate lead of FET by test lead color.
- Identifies all leads of transistor or SCR by test lead color.
- Measures reverse LEAKAGE from .1 pA to 9 mA, (Model 520C only)
- Measures Ipss and gate leakage of FETs. (Model 520C only)
- Identifies SILICON or GERMANIUM transistors. (Model 520C only)
- APPLIED TEST CURRENTS:
- Base Drive: 220 mA (HI drive) or 1 mA (LO drive) at 8% duty cycle.
- Collector Drive: 110 mA at 8% duty cycle.
- Test Repetition Rate: 10 per second.
- Reverse Voltage for leakage test: 2.0V. (Model 520C only)
Controls & Indicators
Refer to the PDF for details.
Installation / Setup
A 9V alkaline battery is supplied with the instrument and must be connected prior to use.
Operation
Refer to the PDF for details.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
The manual provides the following safety warnings and precautions:
1. An electrical shock causing 10 milliamps of current to pass through the heart can stop most human heartbeats. High voltages pose an even greater threat because they can more easily produce a lethal current. Voltage as low as 35 volts DC or AC RMS should be considered dangerous and hazardous since it can produce a lethal current under certain conditions.
2. Normal work habits should include all accepted practices that prevent contact with exposed high voltage and steer current away from the heart in case of accidental contact with high voltage.
3. When performing in-circuit testing of semiconductors, ensure power is removed from the circuit under test. For “hot chassis” equipment, disconnect the power plug in addition to turning off the on-off switch. Most recent television sets, audio equipment, and other equipment with a 2-wire power cord are transformerless “hot chassis” powered, where one side of the AC power line connects directly to the chassis. If such equipment does not have a polarized power plug to prevent insertion the “wrong” way, a serious shock hazard exists if the chassis is touched. Additionally, damage to the semiconductor tester or the equipment under test could result. Unplug any such equipment from its AC outlet; just turning off the on-off switch does not eliminate the hazard. Treat all equipment as “hot chassis” unless you are sure it has an isolated chassis or an earth ground chassis.
4. Only qualified electronics technicians who are trained to work safely in the presence of high voltage should perform servicing of these testers.
Download MANUAL Manual (PDF – 771.2 KB)
Bk-precision-520c-instruction MANUAL: Guide for technicians on troubleshooting and calibrating the Bk-precision 520c model.
- Brand: Bk-precision-520c-instruction
- Model: MANUAL
- Type: Manual
- File size: 771.2 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
Bk-precision-520c-instruction MANUAL Overview
The Bk-precision-520c is a versatile and reliable piece of test equipment designed for precise electrical measurements and diagnostics. Ideal for technicians and engineers, this device offers accurate voltage, current, and resistance readings, making it essential for troubleshooting and maintaining electronic circuits and systems.
Main Features & Specifications
- Wide measurement range: AC/DC voltage up to 600V, current up to 10A
- High accuracy with a resolution of up to 0.01 units
- Auto and manual ranging options for flexible operation
- Backlit LCD display for clear readings in low-light conditions
- Data hold function to freeze readings for easy documentation
- Overload protection to safeguard the device and user
- Compact and ergonomic design for comfortable handling
Basic Usage & Operation Tips
Before using the Bk-precision-520c, ensure the device is powered on and the correct measurement mode is selected. Connect the test leads securely to the device and the circuit under test. For voltage measurements, place the leads in parallel with the component; for current, connect them in series. Use the data hold feature to capture readings when needed. Always start with the highest range to prevent damage and switch to lower ranges for more precise readings.
Troubleshooting & Maintenance
If the device displays erratic readings or fails to power on, check the battery status and replace if necessary. Ensure test leads are intact and properly connected. Clean the device regularly with a soft, dry cloth and avoid exposure to moisture or extreme temperatures. If the device experiences frequent overload warnings, verify the measurement settings and the circuit conditions before continuing use.
Safety Reminder
Always observe standard electrical safety practices when using the Bk-precision-520c. Avoid contact with live circuits and use insulated test leads. Never exceed the specified measurement limits to prevent injury or device damage. Disconnect the device from the circuit before changing measurement modes or ranges.