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 details on confirming the supply range, precautions for connecting output terminals, and the operating environment. It also provides guidance on operation procedures such as stand-alone, serial, and parallel operations, as well as maintenance tasks like fuse replacement and calibration of voltage and current meters.
Manual Overview
The BK Precision DC Regulated Power Supplies manual for models 1620A, 1621A, 1622A, 1623A, 1626A, and 1627A provides detailed guidance on troubleshooting, calibration, and operation. For troubleshooting, the manual emphasizes checking the supply range and ensuring proper connection of output terminals. It advises using the MASTER/SLAVE switch correctly and maintaining an appropriate operating environment to prevent overheating. Error diagnostics involve monitoring the separate voltage and current meters, which vary between analog and LED displays depending on the model. Calibration procedures include voltage and current calibration, as well as voltmeter and ammeter alignment, ensuring precise output adjustments. The manual also covers board-level guidance, allowing for serial and parallel connections to increase output voltage or current. Maintenance instructions include main fuse replacement and ensuring natural convection cooling is not obstructed. The units are designed for high precision and stability, suitable for laboratory, industrial, and other technical applications.
Quick Issues Covered
- Diagnose power-up failures with LED and analog meter indicators.
- Calibrate voltage and current using coarse and fine adjust knobs.
- Use schematics for circuit tracing during 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 in voltage and current output. These units can operate in constant voltage or constant current mode and feature separate meters for monitoring. They allow for serial and parallel connections to increase output voltage and current, respectively. The power supplies are suitable for laboratory, industrial, field service, hobby, and telecommunication applications. The manual covers safety precautions, panel explanations, operation procedures, and maintenance instructions.
Specifications
- – Serial connection: Can be connected in series (within limits of ground proof voltage)
- – Parallel operation: Can be operated in "one-control" parallel configuration (only same model)
- – Cooling system: Natural convection
- – Power consumption: Approximate 210 VA/W (for rated load of AC 220V), Approximate 220 VA/W (for rated load of AC 220V)
- – 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, Approximate 7.4Kgs
- – Input fuse: F2 AC 100V, 110V, 120V 3AF; AC 220V, 230V, 240V 2AF
- – 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 on installation or setup highlights, including 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
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Safety & Warnings
The manual provides 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. For the connection of output terminals, ensure that the MASTER/SLAVE switch on the rear panel is set to the MASTER position for ordinary use, and either the (+) output terminal or the (-) terminal is connected to the GND terminal (chassis GND) via the shorting bar.
3. The unit should be used within the specified ambient temperature range listed in the specification table.
4. The unit is cooled by natural convection, so objects should not be placed 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-1622a-instruction manual: assists technicians in troubleshooting and calibrating the 1622A model. File size: 472.0 KB.
- Brand: Bk-precision-1622a-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-1622a-instruction MANUAL Overview
The Bk-precision-1622a is a versatile digital multimeter designed for accurate measurement of electrical parameters such as voltage, current, and resistance. Ideal for both professional technicians and hobbyists, this device provides reliable readings with user-friendly operation, making it suitable for troubleshooting, testing, and maintenance of electronic circuits and equipment.
Main Features and Specifications
- Measurement Functions: AC/DC Voltage, AC/DC Current, Resistance, Continuity, Diode Test
- Display: Large LCD with backlight for clear visibility
- Auto and Manual Range Selection for flexible measurement
- Data Hold function to freeze readings on the display
- Overload Protection to safeguard the device and user
- Battery Operated with low battery indicator
- Compact and lightweight design for portability
Basic Usage and Operation Tips
Before using the Bk-precision-1622a, 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 Data Hold feature to capture readings when working in difficult-to-view areas. Always disconnect power to the circuit before measuring resistance or continuity to avoid inaccurate readings or damage.
Troubleshooting and Maintenance
If the device displays erratic readings or fails to power on, check the battery status and replace if necessary. Clean the test leads and input jacks regularly to maintain good contact. Avoid exposing the multimeter to extreme temperatures, moisture, or mechanical shock. If the display remains blank or shows unusual symbols, consult the manual for reset instructions or contact authorized service centers for repair.
Safety Reminder
Always observe proper safety precautions when using the Bk-precision-1622a. Never exceed the specified input limits to avoid electric shock or damage. Use insulated test leads and avoid contact with live circuits. Ensure the device is properly grounded when necessary, and never operate the multimeter in wet or explosive environments. Proper handling and adherence to safety guidelines will ensure accurate measurements and user protection.