SERIES MSK Model MSK 40-2.5M Kepco’s MSK linear power supplies MSK MODEL TABLE provide a selection of Ţve models, offering 100 Watts of stable benchtop power. d-c OUTPUT RANGE POWER MODEL They use a high gain linear (series pass) VOLTS AMPS WATTS stabilizer circuit for low noise output, MSK 10-10M 0-10 0-10 0-100 good stability, and accurate resettability. MSK 20-5M 0-20 0-5 0-100 MSK 40-2.5M 0-40 0-2.5 0-100 MSK’s “Preview” switch (d-c on-off) allows MSK 60-2M 0-60 0-2 0-120 voltage and current to be pre-set with the MSK 125-1M 0-125 0-1 0-125 digital meters displaying the set values. At “d-c off,” no voltage is applied to the output terminals and no load current needs to be FEATURES drawn to set the current limit. At “d-c on,” the set voltage is applied to the output • 10 turn voltage and current controls for exceptional resolution. terminals, the appropriate mode indicator • Remote programming by variable resistance. illuminates and the meters indicate actual voltage and current. • Voltage and current mode operation with automatic crossover. Convenient heavy duty front panel binding • Voltage and current may be pre-set off-line. posts, that accept wires or mating “banana” • Linear low noise stabilizer. plugs, allow easy connection to your bread- boards. A built-in, quiet, low-speed fan • Rack mounting with adapter. ensures good cooling in any environment. AN ISO 9001 COMPANY KEPCO, INC. • 131-38 Sanford Avenue • Flushing, NY 11352 USA • Tel: (718) 461-7000 • Fax: (718) 767-1102 Email: hq@kepcopower.com • www.kepcopower.com/msk.htm 38 OUTLINE DIMENSIONAL DRAWINGS MSK GENERAL SPECIFICATIONS Fractional dimensions in light face type are in inches, dimensions in bold face type are in millimeters. Tolerance: ± 1/64" (0.4) between mounting holes SPECIFICATI0N RATING/DESCRIPTION CONDITION ± 1/32" (0.8) other dimensions INPUT Voltage 105-125/210-250V a-c User selectable (rear switch) Current 2.8A rms max Maximum load, 115V a-c Frequency Range 47-63Hz OUTPUT d-c Output Series pass Transistor Type of Stabilizer Automatic crossover Voltage/current Voltage Adjustment 0-100% of rating 0 to +45°C Range REAR VIEW Current Adjustment 0-100% of rating 0 to +45°C Range (1) Error Sense 0.5V per load wire Voltage allowance Voltage Recovery 50µsec typ, Step load change between 100µsec max 10% and 100% I max o Isolation Voltage 500V d-c or peak Output to ground Leakage Current <5 microamperes rms at 115V a-c Output to Ground <50 microamperes p-p at 115V a-c OVP Crowbar SCR Transient 5 milliseconds Setting tracks output or more CONTROL Programming Voltage and current By resistance Voltage 10-turn precision rheostat Current 10-turn precision rheostat TOP VIEW MECHANICAL Input Connections IEC detachable line cord (2) Output Connections Front panel binding posts Output, sense & ground 1 Meters Voltage Two 3 ⁄2˝ LCD digital ±1 digit displays Current ±1% I ±1 digit o Cooling 1800 rpm low noise blower 3 (3) 1 5 Dimensions inches 5 ⁄4 x 8 ⁄8 x 13 ⁄32 (HxWxD) mm 146 x 206 x 334 FRONT VIEW Finish: Fed Std 595 Light gray, color 26440 Front panel, 2 tone Weight (packed 19lbs (8.6Kg) MSK 10-10M, MSK 20-5M, for shipment) MSK 40-2.5M 21lbs (9.5Kg) MSK 60-2M & MSK 125-1M (1) An additional volt is provided in the output beyond the rating for this purpose. (2) Ground terminal permits grounding of either plus or minus output terminal. (3) Including feet. SIDE VIEW MSK STATIC SPECIFICATIONS INFLUENCE QUANTITY VOLTAGE MODE* CURRENT MODE* Source: 105-125/210-250V a-c 0.01% 0.01% Load: No load - full load 0.01% 0.05% Time: 8-hour drift 0.01% 0.02% Temperature: per °C 0.01% 0.02% Ripple and Noise: rms 0.5mV 0.02% p-p 3.0mV 0.1% * Note: Percentage values are referenced to the maximum rated voltage or current of the unit. BOTTOM VIEW KEPCO, INC. • 131-38 Sanford Avenue • Flushing, NY 11352 USA • Tel: (718) 461-7000 • Fax: (718) 767-1102 Email: hq@kepcopower.com • www.kepcopower.com/msk.htm 39