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4.5 - "SKIP" FUNCTION SETTING
• Move right switch on "RUN" position.
• Pressing
mode is inverted from closed to open or vice
versa up to the next program work as set.
4.6 - "SKIP" FUNCTION
• Skip function can be activated only in "RUN" state.
• Skip function must be activated/deactivated by means the respective button.
• This icon
on display show the active function
5.0 - MAINTENANCE
1. Periodically check the chemical tank level so as to avoid the pump operates without liquid. This would not
damage the pump, but may damage the process plant due to lack of chemical.
2. Check the pump operating condition at least every 6 months, pump head position, screws, bolts and seals;
check more frequently where aggressive chemicals are pumped, especially:
- the additive concentration in the process plant; a reduction of this concentration could be caused by the
wearing of the hose, in which case it needs to be replaced or by the clogging of the filter which then has to
be cleaned as in point 3 here below.
3. The Company suggests periodically cleaning off the hydraulic parts (valves and filter). We cannot say how
often this cleaning should be done as it depends on the type of application, we also cannot suggest what
cleaning agent to use as this will depend on the additive used.
Operating suggestions when dosing sodium hypochlorite (most frequent case):
a - disconnect the pins from the mains or by means of a onnipolar switch with 3 mm minimum distance between
the contact.
b - disconnect discharge hose from process plant;
c - remove the suction hose (with filter) from the tank and dip it into clean water;
d - switch on the peristaltic pump and let it operate with water for 5 to 10 minutes;
e - switch OFF the pump, dip the filter into a hydrochloric acid solution and wait until the acid finishes
cleaning;
f - switch ON the pump again and operate it with hydrochloric acid for 5 minutes in a closed-circuit, with
suction and discharge hose dipped into the same tank;
g - repeat the operation with water;
h - re-connect the peristaltic pump to the process plant.
6.0 - TROUBLE-SHOOTING
Before doing anything, disconnect the pump from the mains. As the system is quite robust there are no apparent
mechanical problems. Occasionally there might be a loss of liquid from the nipple because the tube nut has
loosened or more simply the pumping hose has broken. In this case these components must be replaced
immediately.
Pump doesn't put on chemical product in the process plant:
a) Check integrity of the pumping hose. If happened a blowing or a wear of the hoses, verify the chemical compatibi-
lity of the dosed additive.
b) Check clogging of the filter (if present)
c) Check injection valve (if present)
WARNING: when removing the peristaltic pump from the plant, be careful as there might be some residual additive
in the discharge hose. Previous described operations must be done only by qualified personnel. The
manufacturers decline all responsibility for the consequences of failure to respect these rules.
"skip" button the working
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