The service manual for the B&K Precision Model 1660 Triple Output DC Power Supply provides detailed instructions on setup, operation, and troubleshooting, including safety precautions, independent and tracking operation modes, and maintenance procedures such as fuse replacement and line voltage conversion. It also covers the power supply's features like overload protection, reverse polarity protection, and the ability to operate in constant voltage or constant current modes with adjustable current limits.
Manual Overview
The B&K Precision Model 1660 Triple Output DC Power Supply service manual provides detailed guidance for troubleshooting, diagnostics, calibration, and adjustments. The manual emphasizes safety precautions due to potential high voltage exposure during testing. It outlines the use of the power supply’s dual 0-30 V outputs and a single 4-6.5 V output, each with specific current capabilities. Troubleshooting involves checking for overloads, indicated by an LED, and ensuring proper voltage and current settings. Error diagnostics focus on identifying improper connections and overload conditions. Calibration involves adjusting coarse and fine voltage controls for precise output. The manual provides board-level guidance for series and parallel tracking modes, allowing configurations for varied voltage outputs. It advises on using the power supply in constant voltage or current modes, with smooth automatic crossover. The manual also includes instructions for fuse replacement and line voltage conversion, ensuring the power supply’s optimal performance and safety.
Quick Issues Covered
- Diagnose power-up failures with LED indicators for overload conditions.
- Calibrate voltage and current using coarse and fine controls.
- Trace circuits using detailed schematics for series and parallel modes.
Overview
The B & K-Precision Model 1660 Triple Output DC Power Supply is a high-quality, general-purpose DC power source. It features two adjustable 0-30 volt supplies and one 4-6.5 volt supply, with built-in overload protection and reverse polarity protection. The power supply can operate in constant voltage or constant current modes, with smooth automatic crossover and LED indicators for mode status. The two 0-30 volt supplies can be used independently or in series or parallel tracking modes, offering flexibility for various applications. The Model 1660 is suitable for engineering lab applications, providing a versatile power source for circuit evaluation and prototype testing.
Specifications
- Triple Output
- DC Power Supply
- 0-30 volt DC output (two supplies)
- 4-6.5 volt DC output (one supply)
- Adjustable coarse and fine voltage controls
- Current output: 0-2 amps (0-30 V supplies)
- Current output: 0-5 amps (4-6.5 V supply)
- Built-in overload protection
- LED meter displays for current or voltage monitoring
- Reverse polarity protection
- Current limiting
- Output isolated from chassis and earth ground
- Series tracking mode: 0-60 V at up to 2 amps
- Parallel tracking mode: 0-30 V at up to 4 amps
- Constant voltage or constant current applications
- LED indicators for "CV" (constant voltage) or "CC" (constant current) mode
- Current limits adjustable from 5% to 100% of maximum
Controls & Indicators
Refer to the PDF for details.
Installation / Setup
Refer to the PDF for details.
Operation
The manual provides operating instructions for the B & K-Precision Model 1660 Triple Output DC Power Supply. It describes the independent use of the “Master” or “Slave” supply, series tracking operation, parallel tracking operation, and 4-6.5 V power supply operation. The two 0-30 volt supplies can be used independently or in tracking modes. In series tracking mode, the Slave supply tracks the voltage of the Master supply, allowing a single output of 0-60 V at up to 2 amps. In parallel tracking mode, the supplies are connected in parallel, allowing a single 0-30 V output at up to 4 amps. Both supplies can be used in constant voltage or constant current applications, with smooth and automatic crossover between modes. LED indicators show the mode of operation. Current limits can be preset, and the output is isolated from chassis and earth ground for flexible connections.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
Normal use of test equipment exposes users to dangers from electrical shock, especially when testing in areas with exposed high voltage. An electrical shock with 10 milliamps of current through the heart can stop most heartbeats. Voltages as low as 35 volts DC or AC rms are considered dangerous as they can produce a lethal current under certain conditions. Higher voltages pose a greater threat as they can more easily produce a lethal current. To reduce risk, users should follow these safety precautions:
1. The DC output of the power supply poses little danger of electrical shock. However, certain test conditions can create a high voltage shock hazard:
a. If testing “hot chassis” equipment, a serious shock hazard exists unless the equipment is unplugged or precautions in step 8 are followed.
b. If the equipment under test is “powered up” and uses high voltage, the power supply outputs may be floated to the potential at the connection point. Do not float the power supply output to more than 100 volts peak with respect to chassis or earth ground.
c. If the equipment under test is “off” but uses high voltage in normal operation, discharge high-voltage capacitors before making connections or tests.
2. Use only a polarized 3-wire AC outlet to ensure the power supply chassis, case, and ground terminal are connected to a good earth ground, reducing electrical shock danger.
3. Avoid exposing high voltage needlessly. Remove housings and covers only when necessary. Turn off equipment while making test connections in high-voltage circuits. Discharge high-voltage capacitors after removing power.
4. Familiarize yourself with the equipment being tested and the location of its high voltage points, but remember that high voltage may appear unexpectedly in defective equipment.
Download MANUAL Service manual (PDF – 1.7 MB)
Bk-precision-1660-instruction-service manual assists technicians in troubleshooting and calibrating the Bk-precision 1660 model.
- Brand: Bk-precision-1660-instruction-service
- Model: MANUAL
- Type: Service manual
- File size: 1.7 MB
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 MANUAL service manual (PDF)
Bk-precision-1660-instruction-service Overview
The Bk-precision-1660 is a versatile digital multimeter designed for accurate electrical measurements in both professional and hobbyist environments. This device provides reliable readings of voltage, current, resistance, and continuity, making it ideal for troubleshooting, testing, and servicing electronic circuits and equipment.
Main Features and Specifications
- Measurement Functions: AC/DC Voltage, AC/DC Current, Resistance, Continuity, Diode Test
- Display: Large backlit LCD for easy reading in various lighting conditions
- Auto-ranging capability for quick and precise measurement selection
- Data Hold and Relative Measurement modes for enhanced usability
- Overload protection on all ranges to safeguard the device and user
- Compact and ergonomic design with non-slip rubber grips
- Battery operated with low battery indicator
Basic Usage and Operation Tips
Before using the Bk-precision-1660, ensure the device is powered on and the correct measurement mode is selected. Connect the test leads securely to the appropriate input jacks. When measuring voltage or current, always start with the highest range to prevent damage. Use the hold function to freeze readings for easier documentation. For continuity tests, listen for the audible beep to confirm circuit integrity. Always disconnect power from circuits before measuring resistance to avoid inaccurate readings or damage.
Troubleshooting and Maintenance
If the multimeter displays erratic readings or fails to power on, check the battery and replace it if necessary. Clean the test leads and input jacks regularly to ensure good contact. Avoid exposing the device to moisture, extreme temperatures, or strong magnetic fields. If the display becomes dim, replace the batteries promptly. For persistent issues, consult the service manual or contact authorized service centers for repair.
Safety Reminder
Always observe proper safety precautions when using the Bk-precision-1660. Avoid measuring voltages or currents beyond the specified limits to prevent electric shock or device damage. Use insulated test leads and never touch exposed metal parts during operation. Work in a dry environment and wear appropriate personal protective equipment when necessary. Proper handling ensures both user safety and device longevity.