Velleman LABPS3005D Mode D'emploi page 6

7 . Pa ne l Ke ys
Lock ing t he Pa ne l
To prevent unw anted o perat io n o f t he panel k eys, yo u can lo ck t he fro nt panel.
1 . Press and ho ld t he Lock / Unlo ck k ey [ 4 ] fo r abo ut 2 seco nds. Yo u hear a sho rt to ne. The k eys are
now lo ck ed.
2 . To unlo ck t he panel, press and ho ld t he but t o n again. Yo u hear a sho rt to ne.
Key Tone s
Each t im e yo u press a k ey o n t he fro nt panel, y o u hear a to ne.
1 . To sw it ch o ff t he to ne, press and ho ld t he OCP/ Be e p k ey [ 3 ] fo r abo ut 2 seco nds.
2 . To sw it ch t he to ne o n again, press and ho ld t he OCP/ Be e p k ey [ 3 ] fo r abo ut 2 seco nds.
8 . Prot e ction
Using Ov e rv olt a ge Prot e ct ion
1 . To pro t ect against o v ervo lt age, set up t he m ax im um vo lt age and t hen press t he OVP but to n.
The OVP ind icat o r light s.
2 . Press Off/ On to apply t he o ut put to t he lo ad.
If t he o ut put v o lt age becom es higher t han t he set v alue, t he pow er supply cut s o ff t he o ut put and
t he OVP indicat o r flashes.
3 . Disco nnect t he load.
4 . To reco v er, press t he OVP k ey .
Using Ov e rcurre nt Prot e ct ion
1 . To pro t ect against o v ercurrent , set up t he m ax im um current and t hen press t he OCP but to n. The
OCP indicat o r light s.
2 . Press Off/ On to apply t he o ut put to t he lo ad.
If t he o ut put current becom es higher t han t he set v alue, t he pow er supply cut s o ff t he o ut put and
t he OCP ind icat o r flashes.
3 . Disco nnect t he load.
4 . To reco v er, press t he OCP k ey .
9 . Trou ble sh oot in g
•
No t hing happens w hen yo u press t he panel k ey s.
The k ey s are lo cked. Press and ho ld t he Lock / Unlo ck k ey [ 4 ] abo ut 2 seco nds. Yo u hear a to ne
w hen t hey k eys are unlo cked.
•
Power is o n and o ut put is sw it ched o n, but t here is no o ut put .
The lo ad is no t pro perly co nnect ed, o r t he current set up is 0 .
•
The o ut put vo lt age rises slow ly w hen t he o ut put is sw it ched o n.
The current set up is t oo sm all.
1 0 . Re m ot e Con t rol via PC
To o perat e t he pow er supply v ia t he inc luded pc so ftw are, pro ceed as fo llo ws:
1 . Inst all t he so ftware o n yo ur pc and launch t he so ftw are.
2 . Co nnect t he pow er supply t o t he pc v ia t he USB [ 2 1 ] o r RS232 [ 2 0 ] po rt and sw it ch it o n.
The pow er supply co nnects autom at ically t o t he so ftware. When co nnect io n is successful, y o u hear a
t o ne. On t he pc, t he com m unicat io n st at us [ K] is ind icat ed.
Not e : t he k ey s o n t he fro nt panel are lo ck ed w hen t he pow er supply is co nnect ed to a pc. Yo u can o nly
o perat e t he pow er supply v ia t he pc. The LED d isp lay and ind icat o rs wo rk no rm ally.
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LABPS3 0 0 5 D
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