The Bk MANUAL for the Model 1796 High Current Power Supply provides detailed instructions for installation, operation, and troubleshooting, including initial inspections, electrical checks, and setting procedures for constant voltage and current modes. It also includes guidance on remote programming, remote sensing, and handling overload protection, ensuring proper setup and efficient operation of the power supply.
Manual Overview
The B&K Precision Model 1796 High Current Power Supply manual provides detailed instructions for installation, operation, and troubleshooting. The power supply is capable of delivering 0-16V at up to 50A, with continuous adjustment possible via front panel controls. It automatically switches between constant voltage and constant current modes based on load conditions. Troubleshooting involves checking for physical and electrical integrity upon unpacking, ensuring no damage or defects. For diagnostics, the unit features digital panel meters for voltage and current, with LEDs indicating operational mode. Calibration and adjustments can be made using coarse and fine controls on the front panel, and remote programming is possible through an external resistor. The manual advises on installation requirements, emphasizing proper ventilation and electrical connections. For board-level guidance, the manual details input tap selection for 230V operation, requiring adjustments on the Tap Selector Board and replacement of the input varistor. The unit includes automatic overload protection and short circuit protection, ensuring reliable operation under varying conditions.
Quick Issues Covered
- Diagnose power-up failures with initial inspection and electrical checks.
- Identify error codes via digital panel meters for voltage and current.
- Use schematics for circuit tracing and troubleshooting in Section 7.
Overview
The Model 1796 High Current Power Supply is a solid-state device suitable for bench or 19″ rack operation. It provides a regulated constant voltage/constant current supply, delivering 0-16V at 0-50 Amps, adjustable throughout the output range. The power supply can automatically switch between constant voltage and current modes. It features front panel meters for monitoring output, load terminals, and remote sensing capabilities. The manual covers general information, specifications, installation, operating instructions, service instructions, parts list, schematics, and circuit diagrams.
Specifications
- OUTPUT VOLTAGE 0-16V DC continuously variable with coarse and fine voltage controls.
- LOAD CURRENT 0-50 Amp max., continuously variable with coarse and fine controls.
- CONSTANT VOLTAGE MODE REGULATION LINE Less than + 0.01% + 2mV for 10% change in line voltage.
- LOAD Less than + 0.01% + 2mV for load change from zero to full load.
- RIPPLE & NOISE Less than 1mV rms max.(20 Hz – 20 MHz)
- CONSTANT CURRENT MODE REGULATION LINE Less than + 0.05% +10mA for 10% change in line voltage.
- LOAD Less than +0.05% +10mA for change in output voltage from 0 volts to maximum output voltage.
- RIPPLE & NOISE Less than 3mA rms.
- OVERLOAD PROTECTION Automatic overload and short circuit protection.
- TRANSIENT RESPONSE 100usecs to within 10mV of set output voltage for load change from 10% to 90%.
- STABILITY : Total drift within 8 hours, after + 0.2% + 10mV in constant voltage mode. warm up under constant line, + 0.5% + 10mA in constant current mode. load & temp.
- PANEL METERS Digital panel meters(marked V for voltmeter and A for ammeter) are provided with an accuracy of + 3 counts.
- MODE INDICATION Respective LED lights up when the unit is working in CV or CC mode.
- SET LIMIT/ ON-OFF CONTROLS Push Switches for Limit (V & A) and output ON/OFF setting.
- OUTPUT CONTROLS Single turn coarse and fine voltage and current controls are provided on the front panel
- EXTERNAL PROGRAMMING Output voltage can be programmed by a variable resistance of 10K
- OPERATING TEMPERATURE 0-40°C.
- INPUT VOLTAGE 120/230V AC, + 10% 47 – 63Hz single phase.
- DIMENSIONS 19"(W) x 15.75"(D) x 5.24"(H).
- WEIGHT 50 Ibs. Net.
Controls & Indicators
The front panel of the Model 1796 High Current Power Supply includes VOLTAGE and CURRENT controls for limiting output, meters for monitoring output voltage and current, load terminals, and remote sense terminals. It also features an OUTPUT ON/OFF switch, a LIMIT switch for setting voltage and current limits, and a push switch for selecting remote sensing mode.
Installation / Setup
The installation/setup highlights for the Model 1796 High Current Power Supply include:
1. Initial Inspection: Inspect the unit for any damage that may have occurred during transit and save all packing material until inspection is completed. Notify carriers and authorized representatives if any damage is found.
2. Physical Check: Ensure there are no broken knobs or connectors, the cabinet and panel surfaces are free of dents and scratches, and the meters are not scratched or cracked.
3. Electrical Check: Verify the unit against electrical specifications and perform an in-cabinet performance check to ensure proper operation.
4. Installation Data: The unit is shipped ready for bench operation and only needs to be connected to a rated power source (120V AC) for operation.
5. Location: Ensure sufficient space around the unit for fan cooling and avoid confined spaces or proximity to other heat sources. The ambient temperature should be less than 40°C.
6. Rack Mounting: The unit can be rack-mounted using standard mounting screws and optional rack attachments.
7. Input Power Requirements: The unit can operate continuously from a 120V or 230V AC 47 – 63Hz power source and is factory wired for 120V AC operation.
8. Input Tap Selection for 230V Operation: For 230V operation, change the shorting links on the Tap Selection boards to 230V and replace the input varistor with a 20D 361K or equivalent at the EMI filter input.
9. Repackaging for Shipment: Use the original packaging material for safe shipment and attach a tag specifying the owner and observed faults.
Operation
Refer to the PDF for details.
Troubleshooting & Error Codes
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Safety & Warnings
Refer to the PDF for details.
Download MANUAL Manual (PDF – 109.1 KB)
Bk-precision-1796-instruction manual: assists technicians in troubleshooting and calibrating the Bk-precision-1796 model.
- Brand: Bk-precision-1796-instruction
- Model: MANUAL
- Type: Manual
- File size: 109.1 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-1796-instruction Overview
The Bk-precision-1796 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, capacitance, and frequency, making it an essential tool for troubleshooting, testing, and repairing electronic circuits and equipment.
Main Features and Specifications
- True RMS measurement for accurate AC readings
- Wide measurement range: up to 1000V DC/AC voltage, 10A DC/AC current
- Resistance measurement up to 40MΩ
- Capacitance measurement up to 100mF
- Frequency measurement up to 10MHz
- Backlit LCD display for easy reading in low light
- Data hold and auto-ranging functions
- Overload protection on all ranges
- Compact and ergonomic design with durable casing
Basic Usage and Operation Tips
Before using the Bk-precision-1796, ensure the multimeter is set to the correct measurement mode and range. Connect the test leads securely to the device and the circuit under test. For DC measurements, observe correct polarity to avoid inaccurate readings. Use the data hold function to freeze readings for easier analysis. Always start with the highest range to prevent damage and then adjust downward for more precise measurements.
Troubleshooting and Maintenance
If the multimeter displays erratic readings or no display, 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 dry cloth and avoid exposure to moisture or extreme temperatures. If the device fails to power on or shows persistent errors, consult the user manual for detailed troubleshooting steps or contact authorized service centers.
Safety Reminder
Always follow proper safety precautions when using the Bk-precision-1796. Do not exceed the maximum input limits to avoid electric shock or damage. Use insulated test leads and avoid contact with live circuits during measurement. Ensure the device is turned off before connecting or disconnecting test leads. Keep the multimeter out of reach of children and store it in a safe, dry place when not in use.