Velleman LABPS3005D Manual Del Usuario página 5

Using t he Pow e r Supp ly in Const a nt Volt a ge Mode
If y o u w ant to use t he pow er supply in co nst ant vo lt age m o de, yo u set up t he desired o ut put vo lt age
betw een 0 V and 30 V. Yo u also set up t he desired current lim it .
If t he o ut put current ex ceeds t he lim it , t he pow er supply aut om at ically go es int o co nst ant current m o de.
Using t he Pow e r Supp ly in Const a nt Curre nt Mode
If y o u w ant to use t he pow er supply in co nst ant current m o de: yo u set up t he desired o ut put current
betw een 0 A and 5 A. Yo u also set up t he desired vo lt age lim it .
Se tt ing Vo lt a ge a nd Curre nt
Yo u can sav e 4 different v o lt age/ current sett ings using t he m em o ry k ey s M1 ~ M4 .
1 . Press t he m em o ry key [ 5 ] o f t he m em o ry fo r w hich y o u w ant to define t he sett ings. The
co rrespo nding ind icat o r M1 ~ M4 [ 1 3 ] light s and t he ex ist ing set t in gs fo r vo lt age and current are
disp lay ed.
2 . Press t he Volt a ge / Curre nt k ey [ 1 6 ] to set t he vo lt age. The vo lt age reado ut flashes.
Fo r use in co nstant vo lt age m o de: t his is t he desired co nst ant vo lt age.
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Fo r use in co nstant current m o de: t his is t he desired v o lt age lim it .
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If y o u enable o v ervo lt age pro t ect io n, t he o ut put sw it ches o ff autom at ically if t he v o lt age
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ex ceeds t his v alue.
3 . Turn t he adj ust m ent k no b [ 1 4 ] unt il y o u reach approx im at ely t he desired vo lt age. Press < o r >
[ 1 5 ] to select a digit in t he v o lt age reado ut [ 7 ] and t urn t he adj ustm ent k no b to fine- t une.
4 . Press t he Volt a ge / Curre nt k ey [ 1 6 ] again t o set t he current . The current reado ut flashes.
Fo r use in co nstant vo lt age m o de: t his is t he desired current lim it .
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Fo r use in co nstant current m o de: t his is t he desired co nst ant current .
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If y o u enable o v ercurrent pro t ect io n, t he o ut put sw it ches o ff autom at ically if t he current
o
ex ceeds t his v alue.
5 . Turn t he adj ust m ent k no b [ 1 4 ] unt il y o u reach approx im at ely t he desired current . Press < o r >
[ 1 5 ] to select a digit in t he current reado ut [ 6 ] and t urn t he adj ustm ent k no b to fine- t une.
6 . Press t he m em o ry k ey again ( o r wait unt il t he disp lay st o ps flashing) .
The set t ings are saved in t he select ed m em o ry .
Re ca lling Se t t ings
To recall o ne o f t he sav ed set t ings, press t he co rrespo nding m em o ry k ey M1 ~ M4 [ 5 ] . The co rrespo nding
ind icat o r M1 ~ M4 [ 1 3 ] light s and t he co rrespo nding v o lt age/ current set t ings appear o n t he display .
Not e : t he o ut put is sw it ched o ff autom at ically w hen yo u press a m em o ry key to recall a set up.
Using M e m ory 5
To use m em o ry 5 , pro ceed as fo llo ws:
1 . Press m em o ry key 4 and t urn t he adj ust m ent k no b unt il ind icat o r M5 light s.
2 . Set t he vo lt age and current as desired. Wait unt il t he d isp lay st o ps flashing . The set t ings are
aut om at ically st o red in m em o ry 5 .
3 . To recall t he set t ings, p ress m em o ry k ey 4 and t urn t he adj ustm ent k no b again unt il ind ict o r M5
light s.
Conne ct ing a Loa d
1 . Co nnect t he lo ad's posit iv e t erm inal t o t he red + t erm inal [ 1 8 ] o f t he power supply .
2 . Co nnect t he lo ad's negat iv e t erm inal t o t he black – term inal [ 1 8 ] o f t he pow er supply .
3 . Yo u can co nnect t he + o r – t erm inal t o t he green eart h t erm inal [ 1 7 ] o f t he pow er supply t o pin t he
vo lt age t o 0 V (eart h po t ent ial) at t hat t erm inal.
If y o u leav e t he eart h t erm inal unco nnect ed, t he o ut put flo ats w it h respect to t he gro und.
Apply ing Vo lt a ge t o t he Loa d
1 . Press t he Off/ On k ey [ 1 ] to apply t he v o lt age to t he load.
The OUT [ 1 2 ] and C.V. ind icat o rs [ 1 1 ] light . The po w er supply wo rks in co nstant vo lt age (CV)
m o de; t he display no w shows t he act ual o ut put vo lt age and current .
If t he current ex ceeds t he set current lim it , t he po wer supply aut om at ically go es int o co nst ant
current ( CC) m o de. The C.V. ind icat o r go es o ut and t he C.C. ind icat o r [ 1 0 ] light s.
2 . Press t he Off/ On key [ 1 ] to sw it ch t he o ut put o ff.
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