title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

AC-DC Power Supplies Medical TypeInstruction ManualBad example150mmGood exampleFig.1.2 Example of measuring output ripple and ripple noise1.7 Output Voltage Adjustment■The output voltage can be adjusted within the specified range byturning the built-in potentiometer clockwise (up) or counterclockwise(down).■Please operate the potentiometer slowly.■With the option ?V, the power supply comes with an external potentiometerinstead of a built-in potentiometer. See“5 Options andOthers”for more details.1.8 Isolation■For a receiving inspection, such as Hi-Pot test, gradually increase(decrease) the voltage for the start (shut down). Avoid using Hi-Pot tester with the timer because it may generate voltage a fewtimes higher than the applied voltage, at ON/OFF of a timer.1.9 Remote ON/OFF■The ?R option is available for these models. With the ?R option,remote ON/OFF is possible. See“5 Options and Others”for moredetails.1.10 Remote Sensing●PJMA300F■This model do not have the remote sensing function.●PJMA600F, PJMA1000F, PJMA1500F■The ?W/?W1 option is available. With the ?W/?W1 option, remotesensing is possible. See“5 Options and Others”for more details.1.11 LV Alarm●PJMA300F■This model do not have the LV alarm function.●PJMA600F, PJMA1000F, PJMA1500F■The ?W/?W1 option is available. With the ?W/?W1 option, thepower supply can give an LV alarm. See“5 Options and Others”formore details.2 Series Operation andParallel Operation2.1 Series Operation■The power supplies can be used in series connection. The outputcurrent in series operation must be lower than the rated current ofthe power supply with the lowest rated current among the powersupplies connected in series. Make sure no current exceeding therated current flows into a power supply.Power +Supply -Power +Supply -LoadPower +Supply -Power +Supply -Fig.2.1 Examples of connecting in series operation2.2 Parallel Operation■Redundant operation is possible by wiring as shown below.PowerSupplyPowerSupply+-+-I1I2I3LoadFig.2.2 Example of redundancy operation■Even a slight difference in output voltage can affect the balancebetween the values of I1 and I2.Make sure the value of I3 does not exceed the rated output currentof the power supply.l3 [ the rated current value●PJMA300F, PJMA600F■Parallel operation is not possible.●PJMA1000F, PJMA1500F■The ?W option is available. With the ?W option, parallel operationis possible. See“5 Options and Others”for more details.3 Life Expectancy andWarranty■Life ExpectancyThe life expectancy of the power supply is shown below.LoadLoadMarch 15, 2023PJMA-14