Description
A working 24 V supply sold as the mains-to-rail chain it was actually tested as, with its power switch - not a loose board of unknown provenance.
Bench report
- Functional
- Tested working as the bundled assembly you see in the photographs, and cleared by direct observation rather than assumption. Running through its power switch, this supply drove the degasser pump to vacuum setpoint in about one minute. A sagging rail shows up as a SLOW pull-down; this was the opposite, so the rail is sound on the evidence. Headroom is ample - 700 mA available against the 250 mA the pump drew.
- Cosmetic
- Clean, open-frame board on its chassis bracket. No burnt or discoloured components, no bulging or leaking capacitors, no corrosion, no prior repair or rework. The rating label on the chassis bracket is crisp and fully legible and is photographed close up. The switch harness and its ring terminals are intact.
- Tested
- Drove the degasser pump to vacuum setpoint in about one minute, running through its own power switch. · Pull-down was FASTER than the comparable supplies in this batch - the opposite of the slow pull-down a sagging rail produces. · Rating label read and photographed: RWS15A-24, INPUT 100-240VAC ~0.35A 50/60Hz, OUTPUT 24V 0.7A, NEMIC-LAMBDA, Made in China, UL / cUL / CE. · The model also appears on a barcode label on the chassis underside. · Transformer date code MZ0203.
- Not tested
- No meter was put on the output. Rail voltage, regulation, ripple and hold-up are NOT measured. · Not load-tested beyond the roughly 250 mA the pump drew - the full 0.7 A rating is the manufacturer's, not a figure verified here. · The fuses in the inlet's fuse drawer were NOT checked. No rating was read and no claim is made about them - replace them on principle. · Efficiency, thermal behaviour and long-run stability were not assessed. · No hipot, leakage or safety-compliance testing of any kind.
Specifications
- Manufacturer
- Nemic-Lambda (the line later became Densei-Lambda, then TDK-Lambda)
- Model
- RWS15A-24
- Type
- Open-frame switching AC-DC power supply on a chassis bracket
- Input (label)
- 100-240 VAC ~0.35 A, 50/60 Hz
- Output (label)
- 24 V DC 0.7 A
- Approvals (label)
- UL, cUL, CE
- Transformer date code
- MZ0203
- Bundled with
- Chassis power switch and harness to a screw terminal block (FG / L / N), plus the IEC inlet module
- Pulled from
- Agilent 1100 Series G1379A Micro Vacuum Degasser, S/N JP13203268
- Condition
- Used - tested working as the bundled assembly; output not metered