Perma Distributor PRO MP-6, Operating Instructions Manual

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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 figure 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!
figure 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