BK Precision 9104 Programmable Multi-Range DC Power Supply (84V/10A/320W)
The B&K Precision Model 9104 is a 320 W multi-range programmable DC power supply with high performance, flexibility and accurate control, for use over wide working ranges. Unlike conventional single-range power supplies that restrict the maximum power delivery to a single voltage and current coordinate, the 9104 provides the full 320 W of output power for any combination up to 84 V and 10 A. The multi-range architecture of the 9104 automatically recalculates the voltage and current boundaries.
This unit is designed to perform under demanding laboratory, industrial and engineering conditions. It features automatic crossover between constant voltage (CV) and constant current (CC), remote sensing terminals to compensate for line voltage drops, transient waveform generation modes and comprehensive protection circuitry. Its small footprint, high power density and USB/analog control interfaces are critical for automated test systems (ATS), maritime electronics test benches and R&D facilities.
Model Details
- Manufacturer: B&K Precision
- Series: 9100 Series
- Manufacturer Part Number (MPN): 9104 (Also referenced as BK9104)
Technical Specification: BK Precision 9104
| Parameter | Specification Rating |
|---|---|
| Output Voltage Range | 0 to 84 VDC |
| Output Current Range | 0 to 10 A |
| Maximum Output Power | 320 W |
| AC Input Voltage | 90 to 264 VAC (47 Hz to 63 Hz) |
| Load Regulation (Voltage) | ≤ 100 mV (0% to 100% of rated current) |
| Line Regulation (Voltage) | ≤ 10 mV (90 to 264 VAC variation) |
| Load Regulation (Current) | ≤ 50 mA (10% to 90% rated voltage) |
| Line Regulation (Current) | ≤ 10 mA (90 to 264 VAC variation) |
| Ripple & Noise Voltage (RMS / p-p) | ≤ 8 mVrms / ≤ 80 mVp-p |
| Voltage / Current Meter Accuracy | ±(0.1% + 5 counts) |
| Programming / Readback Resolution | Voltage: 0.02 V | Current: 0.01 A |
| Transient Response Time | ≤ 2.0 ms (50% to 100% load change) |
| Interface Connectivity | USB (Virtual COM via CP210X) & Analog Control Terminal |
| Operating Temperature | 0 °C to +40 °C |
| Dimensions (W x H x D) | 200 x 90 x 250 mm (7.9 x 3.6 x 10 inches) |
| Weight | 2.5 kg (5.5 lbs) |
Compatible Equipment Models
- Standard Included Items: AC Power Cord, USB Cable, 8-pin Analog Remote Control Mating Connector, Calibration Test Report.
- Compatible Test Leads: B&K Precision TL30 (30A Hook-up Cable Set with #10 Spade Lugs to Large Battery Clips).
- Software Compatibility: B&K Precision Power Supply Control Software (PSCS), USB Virtual COM Drivers (Windows 10/11 support).
- Rackmount Kits: Compatible with standard benchtop or multi-unit rack mount shelves (IT-E151 / similar universal kits).
Part Number Cross-References
- Manufacturer Part Number: BK9104
- Order Codes / SKU: 26352.1 (TestEquity), 2770403 (Element14), BK9104-ND (DigiKey), Mouser Stock No: 9104.
Applications
- Marine electronics diagnostics, bridge control circuit testing, and DC distribution troubleshooting.
- Research and development (R&D) benchtop testing requiring flexible high-voltage and moderate-current supplies.
- Automated production testing and manufacturing burn-in setups via remote PC programming.
- Telecommunications equipment power simulation and battery charging parameter verification.
- University and advanced technical laboratory education.
Frequently Asked Questions
What makes the B&K Precision 9104 a “multi-range” power supply?
Unlike traditional rectangular power supplies that deliver maximum power at only one specific voltage and current intersection, the 9104 automatically recalculates its internal parameters to deliver its full 320 W output across a broad hyperbola of voltage (up to 84V) and current (up to 10A) combinations.
Can the B&K 9104 be controlled remotely from a computer?
Yes. The power supply features a rear-panel USB interface that maps to a Virtual COM port, allowing full remote control, logging, and timed programming using B&K’s application software or custom SCPI-based scripts.
How do I protect sensitive loads from accidental overvoltage?
You can program the internal Over-Voltage Protection (OVP) limit through the front panel menu or software interface. If the output accidentally exceeds this threshold due to a programming error or external fault, the power supply will shut down output immediately.
Are test leads included with the power supply?
The unit ships with an AC power cord, USB cable, and remote connector plug. High-current test leads or specialized hook-up cable sets like the B&K TL30 should be ordered separately based on your specific bench connector requirements.
14 DAYS RETURN POLICY
RETURNS ARE ACCEPTED IN 14 DAYS. BUYER PAYS THE SHIPPING CHARGES. RESTOCKING FEES 20%.
NOTE:
IF THE ITEM COMES UNDER CUSTOMS, THE BUYER WILL BE FULLY RESPONSIBLE FOR DUTIES AND OTHER CHARGES. WE, AS THE SELLER, DO NOT ACCEPT RETURNS OR REFUNDS IN THIS CASE. KINDLY CONNECT WITH US BEFORE PURCHASING AN ITEM OR IF YOU HAVE ANY OTHER QUERIES.
FEEDBACK
WE WILL BE WAITING FOR YOUR VALUABLE FEEDBACKS. THANK YOU FOR SHOWINGÂ TRUSTÂ INÂ US.
100% Genuine Products
-> YOU WILL GET WHAT YOU SEE IN PHOTOS
-> UNDERSTAND THE PRODUCT BEFORE BUYING
PACKAGING
QUALITY PACKING FOR EACH PRODUCT. ASSURED SAFE & UNDAMAGED DELIVERY.
SHIPPING
FeDEX, DHL EXPRESS INTERNATIONAL SHIPPING.
TAXES & IMPORT DUTIES
DESTINATION COUNTRY ALL TAXES & DUTY TO BE PAID BY BUYER (NOT INCLUDED IN PRICE.
