LPS-250 Single channel 250W, 24V Lamp Power Supply

The LPS-250 is a microprocessor-based power supply for the operation of lamps up to 250W requiring high resolution controllable with very low noise operating current such as calibration standard lamps and auxiliary lamps. It is set-up for full remote control operation in CW mode via its RS232/RS485 interface. Its design includes a high resolution 16 bit digital to analog converter for precise current control. For lamp filament protection it offers a time adjustable on/off ramp function. The LPS-250 can be manually controlled with its front panel buttons with active display. Combined with the BTH19/2 bench top housing a stand alone power supply to operate the BN-LH250 spectral irradiance calibration standard lamp can be set-up.
Output power model LPS-250: AC-supply 100VAC - 240VAC: 270W / 0 - 15A / max. 26V
model LPS-250-A: AC-supply 85VAC: 220W / 0 - 15A / max. 26V
Output connectors banana jack 4mm
Resolution of output current 0.3mA
Temperature stability +-0.3mA / °K
Stability +-1mA (60 minutes after switch on of output current, constant environment for 8 hours)
Display LCD-Grafic display 97x32 pixel
Display size 14.3mm x 35.8mm
LED backlight (switch on/off)
Text display 4 lines each 14 chars
Manual operation 3 keys (enter / menu, down, up / light on off)
Remote interface RS232 / RS485: 19200 Bd, 8D, 1S, N
Control input 4VDC – 30VDC, input resistance 20kOhm, opto coupler isolated, plug 2.1mm/5.0mm
Earth connection at back side
Power 85VAC - 240VAC, 50Hz – 60Hz (output power derating!)
Line fuses 2x 4AT
Inrush current 22A (115VAC), 40A (230VAC)
Safety class 1
Temperature range Operation: 10 - 35°C (with free air flow)
Size: 3kg
CE conformity the device conforms with the requirements set out in the council directive on the approximation of the laws of the member states relating to electromagnetic compatibility (89/336/EEC). For the evaluation regarding electromagnetic compatibility, the following standards were applied: EN 61000-6-2:2001, EN 55011 - Class B, EN61000-3-2
RoHS compatible
Warranty 12 month
Type Description File-Type Download
Datasheet LPS-250 PDF
Produktname Product Image Description Show product
BTH-19 Bench-top and rack housing for 3HE rack modules.

Features: The bench-top housings are available in half, third or full 19” widths. Power supply modules for (110-230) V, 50/60 Hz with low DC voltages for both external devices and those within the housing.
S-SDK-LPS Software Development Kit for LPS variants (power supply)
Article-Nr Modell Description Request / Compare
101092 LPS-250

Power supply module for 115 to 230VAC. Rack-mount housing

15296949 LPS-250A

Power supply module for 90VAC main voltage. Rack-mount housing

15298224 S-SDK-LPS

Software Development Kit for the implementation of a LPS or variants into custom made software

101136 BTH-19/2

Bench top housing for LPS-250 module. 1/2 19” width