Laboratory Switch Mode Power Supply Series Instruction Manual, which introduces the features and characteristics of three products: 72-8340, 72-8345, and 72-8350
This manual covers safety warnings, environmental requirements, and proper handling of the Tenma 72-8340 laboratory switch‑mode DC power supply. It explains the front and rear panel controls, grounding options, and the basic constant‑voltage/constant‑current operation modes.
Detailed operating procedures, current‑limit presetting, protection features, and full technical specifications are provided to help users set up and use the supply safely and efficiently.
| Input Voltage | 200 ~ 240 VAC, 50 Hz |
|---|---|
| Output Voltage Range | 1.0 ~ 60 VDC (model 72‑8340) |
| Output Current Range | 0 ~ 1.6 A (model 72‑8340) |
| Efficiency at Maximum Power | 84 % |
| Switching Operation Frequency | 80 kHz ~ 120 kHz |
| Power Factor | 0.68 |
| Dimensions (W × H × D) | 70 mm × 150 mm × 250 mm (2.8" × 6.0" × 9.8") |
| Weight | 2 kg (4.4 lb) |
Do not use the supply near water, do not touch it with wet hands, do not open the casing while connected to AC, and only qualified service personnel should service it.
The unit includes short‑circuit, overload, over‑temperature, and over‑voltage protection (OVP).