The manual for the B+K Precision Model 1671A Triple Output DC Power Supply covers setup and operation instructions, including safety precautions, equipment protection, and power supply hook-up. It also provides troubleshooting guidance such as fuse replacement and service information to ensure optimal performance and longevity of the power supply.
Manual Overview
The B+K Precision Model 1671A is a triple output DC power supply designed for general-purpose use, offering constant voltage or constant current regulation. It features a variable main output from 0 to 30 volts and 0 to 5 amps, with additional fixed outputs of 5 volts and 12 volts, each capable of delivering up to 0.5 amps. The device is equipped with digital LCD meters for monitoring voltage and current with resolutions of 0.1 volts and 0.01 amps, respectively. The power supply includes safety features such as current limiting, short circuit protection, and reverse polarity protection. For troubleshooting, the manual provides guidance on connecting outputs in series and setting current limits. Maintenance instructions cover fuse replacement and service information. The device is fully overload protected and can operate continuously at maximum output. Calibration and adjustments are facilitated by the clear display and precise control options, ensuring reliable performance in various testing scenarios.
Quick Issues Covered
- Diagnose power-up failures with voltage/current regulation checks.
- Identify error codes related to overload and short circuit protection.
- Use schematics for circuit tracing and troubleshooting connections.
Overview
The B+K Precision Model 1671A is a general-purpose triple output DC power supply. It provides versatile constant voltage or constant current regulated power, variable from 0 to 30 volts and 0 to 5 amps. The power supply includes fixed 5 volt and 12 volt outputs, each capable of providing up to 0.5 amps. It is designed to power circuit boards during troubleshooting, offering up to three outputs simultaneously with fully isolated outputs for positive or negative polarity. The manual covers safety precautions, specifications, operating instructions, maintenance, and service information to ensure maximum performance and longevity of the power supply.
Specifications
- Variable 0-30 VDC
- 0 to 5 Amps
- Current limiting, short circuit protection, reverse polarity protection
- 3 digit LCD
- 0.1 V
- + (1% reading + 2 digit)
- <0.05% + 10 mV
- <5 mVrms
- Fixed 12 VDC
- Fixed 5 VDC
- 0 to 500 mA continuous
- Wire clips
- <1%
- Short circuit protection, thermal overload protection
- Variable speed thermal static control fan
- 115/230 VAC, 50/60 Hz
- 265W
- 0° TO 40° C, 10-80%R.H.
- -15° TO 70° C, ≤ 85% R.H.
- Altitude up to 2000m
- Installation category: CAT II
- Pollution degree: 2
- Mains supply voltage fluctuation up to ±10% of normal voltage
Controls & Indicators
The source provides the following information about the front-panel controls/indicators for the Model 1671A Triple Output DC Power Supply:
– POWER Switch: This switch turns the power supply on and off. The “I” position indicates power switch ON, and the “O” position indicates power switch OFF.
– Power ON light: This indicator lights up when the power is turned on.
– CURRENT LIMITED Indicator: This indicator lights up to show that the current is limited.
Installation / Setup
Refer to the PDF for details.
Operation
Refer to the PDF for details.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
Normal use of test equipment exposes you to a certain amount of danger from electrical shock because testing must sometimes be performed where exposed high voltage is present. An electrical shock causing 10 milliamps of current to pass through the heart will stop most human heartbeats. 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. Higher voltages are even more dangerous. Your normal work habits should include all accepted practices to prevent contact with exposed high voltage, and to steer current away from your heart in case of accidental contact with a high voltage. Observe the following safety precautions:
1. There is little danger of electrical shock from the dc output of this power supply. However, there are several other possible test conditions using this power supply that can create a high voltage shock hazard:
a. If the equipment under test is the “hot chassis” type, a serious shock hazard exists unless the equipment is unplugged (just turning off the equipment does not remove the hazard), or an isolation transformer is used.
b. If the equipment under test is “powered up” (and that equipment uses high voltage in any of its circuits), the power supply outputs may be floated to the potential at the point of connection. Remember that high voltage may appear at unexpected points in defective equipment. 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” (and that equipment uses high voltage in any of its circuits under normal operation), discharge high-voltage capacitors before making connections or tests. Some circuits retain high voltage long after the equipment is turned off.
2. Use only a polarized 3-wire ac outlet. This assures that the power supply chassis, case, and ground terminal are connected to a good earth ground and reduces danger from electrical shock.
3. Don’t expose 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.
Download MANUAL Manual (PDF – 564.5 KB)
Bk-precision-1671a-instruction manual: Guide for technicians to troubleshoot and calibrate the 1671A model. PDF size: 564.5 KB.
- Brand: Bk-precision-1671a-instruction
- Model: MANUAL
- Type: Manual
- File size: 564.5 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-1671a-instruction MANUAL Overview
The Bk-precision-1671a 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 an essential tool for troubleshooting and testing electronic circuits, appliances, and electrical systems.
Main Features and Specifications
- Measurement Functions: AC/DC Voltage, AC/DC Current, Resistance, Continuity, Diode Test
- Display: Large backlit LCD for clear readings in various lighting conditions
- Auto and Manual Ranging for flexible measurement options
- Data Hold and Relative Mode for convenient data analysis
- Overload Protection to safeguard the device and user
- Battery Operated with low battery indicator
- Compact and ergonomic design for comfortable handling
Basic Usage and Operation Tips
Before starting measurements, ensure the device is properly calibrated and the battery is sufficiently charged. Select the appropriate measurement mode using the rotary switch. Connect the test leads to the correct input terminals and the circuit under test. For voltage measurements, connect the leads in parallel with the component; for current, connect in series. Use the hold function to freeze the reading on the display for easier recording. Always start with the highest range if unsure of the expected measurement to prevent damage.
Troubleshooting and Maintenance
If the device displays erratic readings or no readings at all, check the test leads for damage or loose connections. Replace the battery if the low battery indicator is on. Clean the exterior with a dry cloth and avoid exposure to moisture or extreme temperatures. Periodically verify accuracy with a known reference source and recalibrate if necessary. If problems persist, consult the manual or contact authorized service centers.
Safety Reminder
Always observe safety precautions when using the Bk-precision-1671a. Avoid measuring voltages exceeding the device’s rated limits. Use insulated test leads and never touch exposed metal parts during operation. Disconnect power before changing measurement settings or test leads. Proper handling and adherence to safety guidelines will ensure your safety and prolong the life of the device.