The manual for the B+K Precision Model 1746A DC Power Supply provides detailed instructions on setup, operation, and troubleshooting, including safety precautions, equipment hook-up, and typical operation modes such as constant voltage and constant current. It also covers features like reverse polarity protection, overload protection, and the ability to connect two power supplies in series or parallel, along with maintenance guidelines such as fuse replacement and line voltage conversion.
Manual Overview
The B+K Precision Model 1746A DC Power Supply manual provides detailed instructions on troubleshooting, diagnostics, calibration, and adjustments for technicians. The power supply offers a 0-16V, 0-10A output, with adjustable coarse and fine controls for precise voltage and current settings. It features two current ranges (High and Low) for improved settability and meter resolution. The manual emphasizes the smooth automatic crossover between constant voltage and constant current modes, indicated by LED lights. Error diagnostics are facilitated by built-in metering, which continuously monitors output voltage and current. The unit is protected against reverse polarity and overloads, ensuring safety and reliability. Calibration involves setting current limits from 5% to 100% of maximum output. For board-level guidance, the manual details the use of a pre-regulator to minimize internal power dissipation. The power supply can be connected in series or parallel for increased voltage or current output, respectively. Maintenance instructions include fuse replacement and line voltage conversion for international use.
Quick Issues Covered
- Diagnose constant voltage/current mode crossover issues.
- Troubleshoot power-up failures with LED mode indicators.
- Use schematics for circuit tracing and fault isolation.
Overview
The B+K Precision Model 1746 DC Power Supply is a high-quality general-purpose DC power source that provides 0-16 volts DC output, adjustable with coarse and fine controls, and a current output of 0-10 amps. It features two current ranges for excellent current settability and meter resolution, reverse polarity protection, and current limiting. The power supply can operate in constant voltage or constant current modes, with smooth and automatic crossover, and is suitable for various electrical and electronics applications.
Specifications
- OUTPUT VOLTAGE
- to 16 VDC, coarse and fine adjustment
- OUTPUT CURRENT
- High Range — O to 10 A
- Low Range — O to 2 A
- CONSTANT VOLTAGE OPERATION
- Voltage Regulation
- Line (108-132) <(0.2% +2 mV)
- Load (no load to full load) <(0.04% +2 mV)
- Recovery Time <100 µs typical
- Ripple Voltage RMS 5 mV
- Temperature Coefficient 0° to +40° C 300 PPM/° C
- CONSTANT CURRENT OPERATION
- Adjustable Current Limits 5% to 100%
- Current Regulation
- Line (108-132 V) <0.4% +5 mA
- Load <0.4% +5 mA
- Current Ripple <3 mA typical
- DIMENSIONS (H x W x D)
- 5.7” x 10.5” x 15”
- (145 mm x 267 mm x 381 mm)
- WEIGHT
- 20 lb
- METERING
- Voltmeter
- Range 0 to 16 V
- Accuracy ±2.5%
- Ammeter
- Hi Range 0 to 10 A
- Lo Range 0 to 2 A
- Accuracy ±2.5%
- POWER REQUIREMENTS
- Domestic: 120 VAC ±10%, 60 Hz
- International: 120, 220, 230, 240 VAC ±10%, 50/60 Hz
- POWER CONSUMPTION
- Approximately 380 Watts or less at full load
- PROTECTION
- Reverse polarity protection: current limiting
- TEMPERATURE RANGE
- Operation 0 to +40° C <75% R.H.
- Storage -15° to +70° C <85% R.H.
- ACCESSORIES SUPPLIED
- Spare Fuse
- Instruction Manual
Controls & Indicators
The front-panel controls and indicators of the Mode! 1746A DC Power Supply include:
1. C.C. (Constant Current) Indicator: A red LED that lights up in constant current mode, indicating that the unit is regulating output current at the value set by the current control.
2. C.V. (Constant Voltage) Indicator: A green LED that lights up in constant voltage mode, indicating that the unit is regulating output voltage at the value set by the voltage controls.
3. Coarse Control: Used for coarse adjustment of output voltage, with the value read on the voltmeter.
4. Fine Control: Used for fine adjustment of output voltage, with the value read on the voltmeter.
5. CURRENT Control: Adjusts the current limit in constant voltage mode and adjusts the constant current mode. The range of adjustment is determined by the High-Low switch.
6. High-Low Switch: Selects the current range. In the high position, the value is read on the top meter scale of the ammeter (0 to 4A). In the low position, the value is read on the bottom meter scale of the ammeter (0 to 1A).
7. ON-OFF Switch: Power control switch.
8. “+” Terminal (Red): Positive polarity output terminal.
9. “i” Terminal (Green): Earth and chassis ground.
10. “-” Terminal (Black): Negative polarity output terminal.
11. A Meter: Reads output current in amperes. Uses the top scale when the High-Low switch is set to High and the bottom scale when set to Low.
12. V Meter: Reads output voltage on a 0 to 16V scale.
Installation / Setup
Refer to the PDF for details.
Operation
The B+K Precision Model 1746 DC Power Supply can operate in constant voltage or constant current modes. It provides a DC output of 0-16 volts and 0-10 amps, adjustable with coarse and fine controls. The power supply automatically switches between constant voltage and constant current modes, indicated by LEDs. In constant voltage mode, a current limit can be preset, and the unit will regulate output current if the limit is reached. In constant current mode, the maximum voltage can be preset. The power supply features reverse polarity protection, current limiting, and an isolated output for flexible connections. It can be used in series or parallel configurations for increased voltage or current output.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
Use only a polarized 3-wire AC outlet to ensure that the power supply chassis, case, and ground terminal are properly connected.
Download MANUAL Manual (PDF – 904.4 KB)
Bk-precision-1746a-instruction manual assists technicians in troubleshooting and calibrating the Bk-precision 1746a model.
- Brand: Bk-precision-1746a-instruction
- Model: MANUAL
- Type: Manual
- File size: 904.4 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-1746a-instruction MANUAL Overview
The Bk-precision-1746a 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, testing, and repairing electronic circuits and electrical equipment.
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 Range Selection for flexible measurement options
- Data Hold and Max/Min recording functions
- Input Protection to prevent damage from overloads
- Compact and ergonomic design with durable casing
- Battery-powered for portability and convenience
Basic Usage and Operation Tips
Before using the Bk-precision-1746a, ensure the battery is fully charged or replaced if necessary. Select the appropriate measurement mode and range for your task. Connect the test leads securely to the device and the circuit under test. Always start with the highest range to prevent damage and then adjust downward for more accurate readings. Use the data hold feature to freeze readings when needed, and consult the manual for detailed instructions on each function.
Troubleshooting and Maintenance
If the multimeter displays erratic readings or no readings at all, check the battery status and replace it if low. Inspect test leads for damage or wear and replace if necessary. Clean the device regularly with a dry cloth to prevent dust buildup. Avoid exposure to moisture or extreme temperatures. If the device fails to operate correctly after these steps, consult the manual’s troubleshooting section or contact customer support.
Safety Reminder
Always observe proper safety precautions when using the Bk-precision-1746a. Do not exceed the specified input limits to avoid electric shock or damage to the device. Use insulated test leads and avoid working on live circuits whenever possible. Follow all local electrical safety regulations and wear appropriate personal protective equipment when necessary.