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4 installation, 1 rack mounting, 1 mounting one 1/2-rack unit in 19-inch rack – KEPCO KLN 750W Series, Firmware Version 1.60 to 1.6x User Manual

Page 25: Installation -5, Rack mounting -5, Mounting one 1/2-rack unit in 19-inch rack -5

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KLN 750W 032614

2-5

15.Connect a digital voltmeter (DVM) to the (+S) and (-S) terminals on the rear panel. Verify that

DVM shows there is no output voltage from the power supply.

16.Press red OUT key. Verify that red LED at left of OUT key goes on.

17.Compare the programmed output voltage value (e.g., 30.00V for 30V model per step 11) with

the voltage reading of the DVM; Verify that the difference between the two does not exceed
±0.1% ± 3C

(*)

.

18.Compare the voltage reading of Voltage Display with that of the DVM; Verify that the differ-

ence between the two does not exceed ±0.2% ± 3C

(*)

.

19.Disable the output by pressing the OUT key; verify front panel Voltage and Current displays

show programmed values of Voltage and Current, respectively and DVM reads 0V.

20.Set power switch to OFF. The unit issues a long beep as it powers down. Disconnect unit

from source power, then disconnect test equipment.

(*) C = 1 count of the last displayed digit.

2.4

INSTALLATION

2.4.1

RACK MOUNTING

One or two (side by side) KLN 750W units can be mounted in a standard 19-inch rack. The units
are 1U high and do not require any gaps between equipment above and below. Airflow is front
to back only. Use the RA 81-1 Mounting Kit (see Table 1-4) to mount a single unit. Use Mounting
Kit RA 81-2 (optional, see Table 1-4) to mount two half-rack units side by side in a 19-inch rack.

2.4.1.1

MOUNTING ONE 1/2-RACK UNIT IN 19-INCH RACK

1. On one side of the unit, mount one L-type bracket with knob (supplied with unit) to the unit

using two screws supplied with unit.

2. Mount the U-type bracket supplied in the Kit to the other side of the unit using two screws

supplied in Kit.

3. Mount the other L-type bracket with knob (supplied with unit) to the end of the U-type bracket

using two screws supplied with unit. The knobs can now be used to support the assembled
unit while installing in a 19-inch rack.