Comparison Guide
Benchtop DC Electronic Loads
8550 Series
8550 Series Programmable DC Electronic Loads
| Company | B&K Precision | Keysight | Chroma | |||
| Model | 8550 | 8551 | 8542B | EL33133A | EL34143A | 63004-150-60 |
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| List Price | $890 | $1,290 | $990 | $2,212 | $2,703 | $1,860.49 |
| Input Ratings | 150 V / 30 A / 175 W | 150 V / 60 A / 350 W | 150 V / 30 A / 150 W | 150 V / 40 A / 250 W | 150 V / 60 A / 350 W | 150 V / 60 A / 350 W |
| Cost-per-Watt | $5.02 | $3.69 | $6.50 | $8.85 | $7.72 | $5.32 |
| Features | ||||||
| Form Factor | 2U half-rack | 2U half-rack | 3U | 2U half-rack | ||
| Operating Modes | CC/CV/CR/CW | CC/CV/CR/CW | CC/CV/CR/CW | CC/CV/CR/CW/CZ | ||
| Transient Mode | 20 kHz | Adjustable up to 10 kHz | – | – | ||
| Max. CC Mode Accuracy | ± (0.05% + 0.05% F.S.) | ± (0.05% + 0.05% F.S.). | 0.05% + 820 µA(0.002% F.S.) | 0.04% + 130 µA(0.0002% F.S.) | ± (0.05% + 0.05% F.S.) | |
| Max. CC/CV Mode Setting Resolution | 0.05 mA / 0.2 mV | 0.1 mA / 0.2 mV | 0.1 mA / 1 mV | 0.045 mA / 0.17 mV | 0.007 mA / 0.17 mV | 0.1 mA / 1 mV |
| Max Measurement Resolution | 0.1 mA / 1 mV | 0.1 mA / 0.1 mV | 0.070 mA / 0.27 mV | 0.015 mA / 0.27 mV | 0.1 mA / 1 mV | |
| Front Panel | 4.3-inch LCD screen, front panel sense terminals, USB host port | Dual row VFD (segmented display) | 4.3-inch LCD screen, front panel sense, USB host port | LCD screen, front panel sense, USB host port | ||
| Multi-type spade or banana plug input terminals | Multi-type spade or banana plug input terminals | Spade/wire insert type only | Multi-type spade or banana plug input terminals | |||
| I/O Interfaces | RS232 | DB9 (TTL) interface with USB adapter | USB, LAN (LXI) standard, GPIB optional | USB standard (LAN and GPIB optional) | ||
| Protection | OVP/OCP/OPP/remote reverse voltage (RRV) | OVP/OCP/OPP/OTP/ reverse polarity | OVP/OCP/OPP | OV warning/OCP/OPP/OTP/ reverse polarity | ||
| General | ||||||
| Operating Software | Operating software and battery test software provided | Operating software and battery test software provided | PathWave BenchVue ($50/yearly) | – | ||
| Warranty | 3 years | 3 years | 3 years | 90 days | ||
Technical data subject to change
© B&K Precision Corp. 2023
Prices listed as of 04-03-2023
bkprecision.com
v04262023
