Perma PRO 500 - Calculation of the Remaining Discharge Period

perma PRO -17-
Low-Temperature Cut-Off of the Lubrication System
Thetemperaturerangefrom0°Cto-19°C(32°Fto-2.2°F)isindicatedbyablinkingicecrystalsymbol
(refertogure16).
InthistemperaturerangethelubricationsystempermaPROcontinuestooperatewithoutinterruption.
Please note, that in this temperature range an additional discharge is not possible!
gure16  Displaywithablinkingicecrystal(inthisexamplewith %Vol.)
Inordertoprotectthesystemfromdamage,thelow-temperaturecut-offofthelubricationsystemisautomatically
carriedoutbythecontrolsystemandthebuilt-intemperaturesensor.
Ifthetemperaturereachesorfallsbelow-20°C(-4°F),thelubricatorisswitchedoffbythelow-temperature
cut-offandtheicecrystalsymbolispermanentlyindicatedonthedisplay.Theremainingvolumeisstilldisplayed
in%Vol.
From this time onwards, the lubricant is no longer discharged. You have to take this fact into account if
your system continues to operate in order to prevent damages!
Assoonasthetemperaturerisesandreaches-19°C(-2.2°F)orhigher,thecontrolsystemswitchesthe
lubricationsystemon.
Thedisplayshowstheremainingvolumeandtheblinkingiceicon.
All discharges (except additional discharges), accumulated during the shut-off, will be caught up when
the system continues operation (at a max. of two additional discharges with every regular discharge).
6.9 Calculation of the Remaining Discharge Period
Pleasenote,thatincaseofoneorseveraladditionaldischarges,theremainingdischargeperiodofthelubrica-
tionsystemmustberecalculated.Thisalsoappliesincaseofacut-offofthelubricationsystemduetoalong
machinestandstill(e.g.weekendsorannualholidays)orincaseofalow-temperaturecut-offcarriedoutbythe
systemiftemperaturesreach-20°C(-4°F).
Youshouldalsonotetheresultofyourcalculationoftheremainingdischargeperiodinyourlubricationand
maintenanceschedule.
    SDP*RV
  Formula: R
DP
=
    100
  SDP:SetDischargePeriodofthelubricator(days,weeks,months)
  RV: RemainingVolume(displayedin%Vol.)
 R
DP
: Remainingdischargeperiod(days,weeks,monthsdependingonSDP)
Example of a Calculation of the Remaining Discharge Period
ThepermaPROwitha250cm
3
PROLCunitwasoriginallysettoadischargeperiod(SDP)ofeightmonths,
sincethelubricationpointneeds4.3cm
3
lubricant/100h.Aftertwomonths,thepermaPROindicatesare-
mainingvolume(RV)of %Vol.Atthispoint,thelubricatorisswitchedoffforsixweeks(e.g.machinestand-
still).Whenitisswitchedonagain,youwouldliketodeterminewhenthePROLCunitwillbeempty.
  SDP*RV 8*75 600
 R
DP
= = = =6
  100100 100
Thisresultsinaremainingdischargeperiodofsixmonths.Afterthesesixmonths,thePROLCunitwillbeempty
andmustbereplacedbyanewone.
%Vol.
LC 500