The BK Precision Model 851 Deluxe EPROM Eraser manual provides detailed instructions for setting up and operating the device, including safety precautions, proper grounding, and the process for erasing EPROM chips using a UV lamp. It also includes troubleshooting tips, such as checking the AC voltage before use and ensuring the power safety switch functions correctly to prevent UV light exposure when the drawer is open.
Manual Overview
The BK Precision Model 851 Deluxe EPROM Eraser manual emphasizes safety and operational procedures for technicians. The device is designed to erase up to 40 EPROM chips simultaneously using UV radiation, with safety features to prevent exposure. Before operation, ensure the AC voltage matches the unit’s specifications to avoid damage. Place EPROMs on the anti-static pad, close the drawer, and set the timer for 10-30 minutes based on chip usage. The power LED indicates operation, and a bell signals cycle completion. The UV lamp operates at 253.7nm, suitable for erasing EPROMs. The manual advises against altering the ground connection and stresses the importance of using the device in non-explosive environments. Internal servicing should only be performed by qualified personnel, with all power disconnected to prevent shock. For service, obtain an RMA number from the BK Precision website and follow the return instructions. The manual does not provide specific troubleshooting flow, error codes, or board-level guidance.
Quick Issues Covered
- Diagnose power-up failures with incorrect AC voltage settings.
- Calibrate erasing time for different EPROM usage frequencies.
- Refer to schematics for circuit tracing and component replacement.
Overview
The BK Precision Model 851 is a deluxe EPROM eraser designed with safety features to prevent exposure to UV radiation and main voltages. It features a heavy-duty metal casing and a chip drawer lined with conductive foam to protect EPROMs from electrostatic damage. The device can erase up to 40, 24-pin EPROMs simultaneously and includes a timer for setting erasure durations. The UV lamp operates at a wavelength of 253.7nm, suitable for erasing EPROMs. Safety measures include a power safety switch that automatically shuts off the unit when the drawer is opened to prevent UV light leakage.
Specifications
- Timer Setting: 30 minutes
- Power Supply: 100 — 120VAC 50/60 Hz
- UV Bulb Wattage: 10W
- Dimensions: 15.5 x 6 x 3.25” (394 x 150 x 80mm)
- Weight: 8.8 lbs. (4 kg)
Controls & Indicators
Refer to the PDF for details.
Installation / Setup
The source does not provide specific installation or setup highlights related to wiring, clearances, calibration, or prerequisites for the BK Precision Model 851 Deluxe EPROM Eraser.
Operation
To operate the BK Precision Model 851 Deluxe EPROM Eraser, first confirm that the AC voltage value matches the voltage labeled on the unit to prevent damage. Open the drawer and place the EPROM chips on the anti-static carbon pad. The device can erase up to 40, 24-pin EPROMs simultaneously. Close the drawer and set the timer by rotating it clockwise. For new chips, set the timer for 10-15 minutes, and for frequently used chips, set it for 20-25 minutes or longer. Typically, 30 minutes is sufficient to erase most EPROMs. The power lamp will light up when the eraser is working, and the UV lamp operates at a wavelength of 253.7nm. When the set time expires, a bell will sound to indicate the cycle is complete. The device has a safety switch that automatically shuts off the unit when the drawer is opened to prevent UV light exposure.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
The safety warnings and precautions explicitly present in the manual for the BK Precision Model 851 Deluxe EPROM Eraser include:
1. Ground the Instrument: The instrument chassis and cabinet must be connected to an electrical ground to minimize shock hazard. The power cable must be plugged into an approved three-conductor electrical outlet, and the ground connection must not be altered.
2. Do Not Operate in an Explosive Atmosphere: The instrument should not be operated in the presence of flammable gases or fumes.
3. Keep Away from Live Circuits: Instrument covers should not be removed by operating personnel. Component replacement and internal adjustments must be made by qualified maintenance personnel. The power cord should be disconnected before removing the instrument covers and replacing components.
4. Do Not Service or Adjust Alone: Internal service or adjustment should not be attempted unless another person capable of rendering first aid and resuscitation is present.
5. Do Not Substitute Parts or Modify the Instrument: Substitute parts should not be installed, and unauthorized modifications should not be performed. The instrument should be returned to B&K Precision for service and repair to ensure that safety features are maintained.
Warnings and cautions are also included, emphasizing the importance of not altering the ground connection, disconnecting the power cord before removing covers, checking the rear panel AC line voltage indicator before connecting the line cord to the AC mains, and following proper procedures for handling components sensitive to electro-static discharge (ESD).
Download MANUAL Manual (PDF – 151.7 KB)
Bk-precision-851-instruction manual: assists technicians in troubleshooting and calibrating the Bk-precision 851 model.
- Brand: Bk-precision-851-instruction
- Model: MANUAL
- Type: Manual
- File size: 151.7 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-851-instruction Overview
The Bk-precision-851 is a versatile digital multimeter designed for accurate measurement of electrical parameters in various applications. Ideal for both professional technicians and hobbyists, this device provides reliable readings of voltage, current, resistance, and continuity, enabling efficient troubleshooting and diagnostics in electronic circuits and electrical systems.
Main Features and Specifications
- Measurement Functions: AC/DC Voltage, AC/DC Current, Resistance, Continuity, Diode Test
- Display: Large backlit LCD for easy reading in low-light conditions
- Auto and Manual Range Selection for flexible measurement options
- Data Hold function to freeze readings for convenience
- Overload Protection to safeguard the device and user
- Compact and lightweight design for portability
- Battery Operated with low battery indicator
Basic Usage and Operation Tips
Before using the Bk-precision-851, ensure the device is powered on and the correct measurement mode is selected. Connect the test leads securely to the input terminals and the circuit under test. For voltage measurements, set the multimeter to the appropriate AC or DC voltage range. When measuring current, always connect the meter in series with the circuit. Use the data hold feature to capture readings when necessary. Always start with the highest range to prevent damage and then adjust downward for more precise readings.
Troubleshooting and Maintenance
If the multimeter displays erratic readings or no readings at all, check the battery status and replace it if necessary. Inspect test leads for any damage or wear and replace if needed. Clean the device regularly with a soft, dry cloth and avoid exposure to moisture or extreme temperatures. If the device fails to operate correctly after these steps, consult the manual or contact authorized service centers for repair.
Safety Reminder
Always observe proper safety precautions when using the Bk-precision-851. Do not exceed the maximum input limits specified in the manual. Avoid measuring voltage or current in circuits with voltages higher than the device rating. Disconnect power before changing test leads or measurement settings. Use insulated gloves and tools when working with high voltages to prevent electric shock or injury.