The manual for the Dual Display LCR Meter Model 878A/879 provides detailed instructions on setting up and operating the meter, including selecting measurement functions, testing frequencies, and utilizing features like data hold and auto/manual ranging. It also includes troubleshooting tips, such as ensuring the circuit is de-energized before testing and calibrating the meter for optimal precision.
Manual Overview
The Dual Display LCR Meter models 878A and 879 are hand-held instruments designed for measuring inductance, capacitance, and resistance. They feature microprocessor control for accurate measurements in both parallel and series modes, with selectable auto and manual ranging. The meters include a variety of functions such as data hold, recording modes, relative measurements, and tolerance sorting. Calibration is recommended for optimal precision, particularly at extreme ranges. The meters can be powered by a 9V battery or an optional 12V DC adaptor. For troubleshooting, the manual provides guidance on interpreting error codes and diagnostics, such as short or open connectors and damaged fuses. Calibration and adjustments are facilitated through front panel controls, including frequency and function selection buttons. The optional RS232C interface allows data transfer to a PC. Safety precautions emphasize de-energizing circuits before testing and discharging capacitors to prevent electrical hazards. The meters are compliant with EN61010 safety standards, ensuring safe operation in specified environments.
Quick Issues Covered
- Diagnose power-up failures with auto/manual ranging feature.
- Error codes for damaged or open fuse detection.
- Schematics assist in circuit tracing and component testing.
Overview
The Dual Display LCR Meter, Models 878A and 879, is a hand-held, battery-operated instrument designed for measuring inductance, capacitance, and resistance. It is microprocessor-controlled and offers both parallel and series mode measurements. The meter features auto and manual ranging, data hold, and various modes for recording and analysis. It includes a backlit display for Model-A, and test data can be transferred to a PC via an optional RS232C interface. The meter is powered by a 9V battery or an optional 12V AC to DC adaptor.
Specifications
- General Specification
- Electrical Specification
Controls & Indicators
The front panel of the Dual Display LCR Meter Model 878A/879 includes the following controls and indicators:
– LCD display
– Power ON/OFF button
– RS232 and Backlit button
– Dissipation factor, Quality factor, and Phase angle selection button
– Test frequency selection button
– Inductance, Capacitance, and Resistance function selection button
– Parallel and series mode selection button
– Tolerance mode selection button
– Data hold, Maximum, Minimum, and Average reading selection button
– Range selection button
– Relative mode and Calibration selection button
– DC 12V adaptor input
– Input sockets and Terminals
Installation / Setup
Refer to the PDF for details.
Operation
The manual provides basic usage steps for operating the Dual Display LCR Meter, Model 878A/879. To measure inductance, capacitance, or resistance, first press the “POWER” button to turn on the meter. Then, use the “L/C/R” button to select the desired measurement type. Insert the component into the receptacle socket or connect the test clip to the component leads. Use the “FREQ” button to select the testing frequency. For inductance and capacitance measurements, press the “D/Q” button to select the Q factor or D factor for the secondary display. Finally, read the display for the measurement value and additional factors. It is important to discharge capacitors before testing to avoid electrical hazards.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
Read “SAFETY INFORMATION” before using this meter. The meter is for indoor use at altitudes up to 2,000 m. Use the device only as specified in the manual to ensure protection. Before measuring in-circuit components, de-energize the circuits and discharge capacitors. The meter complies with EN61010 (EC 1010-1) Installation Category II (CAT. I) 50 V, Pollution Degree 2 environment. Use a 9V battery or a 12V AC to DC adaptor meeting IEC safety standards.
Download MANUAL Manual (PDF – 667.0 KB)
Bk-precision-879-instruction manual: assists technicians in troubleshooting and calibrating the Bk-precision-879 model. File size: 667.0 KB.
- Brand: Bk-precision-879-instruction
- Model: MANUAL
- Type: Manual
- File size: 667.0 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-879-instruction Overview
The Bk-precision-879 is a versatile and reliable digital multimeter designed for accurate electrical measurements in both professional and hobbyist applications. This device provides precise readings of voltage, current, resistance, and continuity, making it an essential tool for troubleshooting and testing electronic circuits and electrical systems.
Main Features and Specifications
- True RMS measurement for accurate AC voltage and current readings
- Wide measurement range: up to 600V AC/DC voltage, 10A current
- Resistance measurement up to 40MΩ
- Continuity buzzer and diode test function
- Backlit LCD display for easy reading in low-light conditions
- Data hold and relative measurement modes
- Auto-ranging capability for user convenience
- Robust casing with built-in stand and protective rubber holster
Basic Usage and Operation Tips
Before using the Bk-precision-879, ensure the device is properly calibrated and the battery is fully charged. Select the appropriate measurement mode using the rotary switch. Always start with the highest range to prevent damage when measuring unknown voltages or currents. Connect the test leads securely to the device and the circuit under test. Use the data hold function to freeze readings for easier analysis. When measuring current, always connect the meter in series with the circuit.
Troubleshooting and Maintenance
If the device displays erratic readings or fails to power on, check the battery and replace it if necessary. Inspect test leads for damage or wear and replace if needed. Clean the device regularly with a soft, dry cloth and avoid exposure to moisture or extreme temperatures. If the multimeter fails to measure correctly, consider professional calibration or servicing.
Safety Reminder
Always observe proper safety precautions when working with electrical equipment. Never exceed the maximum input limits specified in the manual. Avoid contact with live circuits and wear appropriate personal protective equipment. Disconnect power sources before connecting or disconnecting the multimeter to prevent electric shock or damage to the device.