The BK Precision Instruction Manual for models 1620A, 1621A, 1622A, 1623A, 1626A, and 1627A covers the setup, operation, and troubleshooting of DC regulated power supplies, including instructions for confirming supply range, precautions for connection, and operating environment. It also provides detailed procedures for stand-alone operation, serial and parallel connections, maintenance tasks like fuse replacement and calibration, and explains the functions of front and rear panel controls.
Manual Overview
The BK Precision DC Regulated Power Supplies manual covers models 1620A, 1621A, 1622A, 1623A, 1626A, and 1627A. These power supplies offer constant voltage and current modes with adjustable outputs. Troubleshooting involves checking connections and ensuring the MASTER/SLAVE switch is correctly set for parallel operations. Error diagnostics focus on verifying input voltage settings and ensuring proper ventilation to prevent overheating. Calibration procedures include voltage and current adjustments using coarse and fine knobs, with specific steps for voltmeter and ammeter alignment. For board-level guidance, users should ensure proper fuse replacement and avoid unauthorized repairs to maintain warranty coverage. The manual emphasizes the importance of operating within specified environmental conditions and using correct configurations for serial and parallel connections to optimize performance.
Quick Issues Covered
- Diagnose power-up failures with voltage and current calibration.
- Error codes for output terminal connection issues.
- Schematics for circuit tracing and troubleshooting.
Overview
The BK Precision models 1620A, 1621A, 1622A, 1623A, 1626A, and 1627A are DC regulated power supplies designed for high precision and continuous variability. They can operate in constant voltage or constant current modes, with outputs adjustable from 0 to the rated values. These units feature separate voltage and current meters for simultaneous monitoring and allow for easy and precise adjustments using coarse and fine adjust knobs. They support parallel and serial connections for increased output capabilities and are suitable for laboratory, industrial, field service, hobby, and telecommunication applications. The manual covers features, operation procedures, panel explanations, and maintenance guidelines.
Specifications
- Voltage and current can be varied from 0 up to rated values for respective model.
- Separate voltage and current meters.
- Analog meters for models 1620, 1622, 1626.
- 3-digit LED meters for models 1621, 1623, 1627.
- Coarse and fine adjust knobs for voltage and current.
- Can connect multiple units in parallel (master/slave configuration).
- Can connect multiple units in series for higher output voltage.
- Natural convection cooling system.
- Power consumption: Approximate 210 VA/W for 220V rated load.
- Input voltage: 220V, 50Hz (or on request).
- Operating ambient temperature: 5 to 40°C, 10-80% R.H.
- Dimensions (width x height x depth): 205 x 115 x 270mm.
- Weight: Approximate 6Kgs for some models, Approximate 7.4Kgs for others.
- Input fuse: F2, 3AF for AC 100V, 110V, 120V; 2AF for AC 220V, 230V, 240V.
- Internal fuse: F1, 500mAF.
Controls & Indicators
1. POWER SWITCH: Turns the power supply ON-OFF; the switch lights up when the unit is ON.
2. DC VOLTMETER: Indicates the present output voltage. (Analog meter for 1620, 1622, 1626 and LED meter for 1621, 1623, 1627)
7. VOLTAGE FINE ADJUST: Fine adjust knob for the output voltage in voltage mode.
8. CURRENT COARSE ADJUST: Coarse adjust knob for current limiting point and current value in constant current mode.
Installation / Setup
The source does not provide specific information about installation or setup highlights, such as wiring, clearances, calibration, or prerequisites.
Operation
The source does not provide specific information on the operation, modes, or basic usage steps for the DC Regulated Power Supplies.
Troubleshooting & Error Codes
“”
Safety & Warnings
The manual includes the following safety warnings and precautions:
1. The units must be used within their specified range. Before plugging into the AC supply outlet, check whether the input rating conforms with your local supply. For certain models, a voltage selector is available, and it should be switched to the appropriate position before use.
2. The units are floating type power supplies. For ordinary use, ensure that the MASTER/SLAVE switch on the rear panel is set to the MASTER position and either the (+) output terminal or the (-) terminal is connected to the GND terminal (chassis GND) via the shorting bar.
3. Use the unit within the specified ambient temperature range listed in the specification table.
4. The unit is cooled by natural convection, so do not place objects on top to block the convection. Avoid placing the unit on or near any heat-emitting devices or using multiple units in a stacked configuration. For best results, use the unit in an environment that is as well cross-ventilated as possible.
Download MANUAL Manual (PDF – 472.0 KB)
Bk-precision-1626a-instruction manual: assists technicians in troubleshooting and calibrating the 1626A model. File size: 472.0 KB.
- Brand: Bk-precision-1626a-instruction
- Model: MANUAL
- Type: Manual
- File size: 472.0 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-1626a-instruction MANUAL Overview
The Bk-precision-1626a is a versatile digital multimeter designed for precise electrical measurements in various applications. Ideal for technicians, engineers, and hobbyists, this device provides accurate readings of voltage, current, resistance, and other electrical parameters. Its robust design and user-friendly interface make it suitable for both fieldwork and laboratory use.
Main Features and Specifications
- Measurement Functions: AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency, and Temperature
- Large backlit LCD display for easy reading in low-light conditions
- Auto-ranging capability for simplified operation
- Data hold and relative measurement functions
- Overload protection on all ranges
- Max/Min recording to capture fluctuating signals
- Input impedance: 10MΩ for voltage measurements
- Battery operated with low battery indicator
Basic Usage and Operation Tips
Before using the Bk-precision-1626a, ensure the batteries are properly installed and the device is calibrated if necessary. Select the appropriate measurement mode using the rotary switch. Always connect the test leads to the correct input jacks and observe polarity when measuring DC voltage or current. For accurate results, avoid measuring in environments with high electromagnetic interference. Use the data hold function to freeze readings on the display for easier recording.
Troubleshooting and Maintenance
If the device displays erratic readings or fails to power on, check the battery status and replace if needed. Inspect test leads for damage or wear and replace them if necessary. Clean the device regularly with a dry, soft cloth; avoid using solvents or abrasive materials. If measurement errors persist, consider recalibrating the multimeter or consulting the service center authorized by Bk-precision.
Safety Reminder
Always follow standard electrical safety practices when using the Bk-precision-1626a. Do not exceed the maximum input limits specified in the manual to avoid damage or personal injury. Use caution when measuring high voltages or currents, and never operate the device with wet hands or in damp environments. Properly disconnect the test leads before changing measurement modes or ranges.