ENGLISH
5
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Range of values:
•
pH:
0÷14
•
Redox
:
-1000 ÷ +1400 mV
•
PPM:
0÷2, 0÷10, 0÷20, 0÷200 ppm
•
Temperature
0÷100 °C
(PT100)
O p e r a t i n g p r i n c i p l e o f p e r i s t a l t i c p u m p s
By peristalsis we mean the propulsive motion of automatic contractions inside a channel or pipe, from whence the term peristaltic
action. Through the mechanical simulation of biological peristalsis, rollers compress the walls of a pipe forming a seal during their
movement, then the compressed part of the pipe goes back to its original shape thus suctioning fluid by means of the negative pressure
created. The fluid follows the roller until the pipe is no longer compressed. At this point, a second roller is already compressing the pipe
to avoid a backflow, pushing the initial dosage of fluid out of the pump and repeating the suction action. Rollers mounted on special
rotors allow the pump to run continuously thanks to their inlet/outlet action.
O p e r a t i n g p r i n c i p l e o f e l e c t r o m a g n e t i c p u m p s
The metering pump operates by means of a PTFE (Teflon®) diaphragm mounted on the piston of an electromagnet. When the
piston of the electromagnet is attracted, it creates pressure on the pump body thus ejecting liquid from the supply valve. When the
electric pulse is finished, a spring brings the piston back to its initial position flowing liquid through the suction valve. The pump needs
no lubrication and practically no maintenance thanks to its easy use. The materials used to build the pump make it fit for dispensing
chemically aggressive liquids. The metering pump was designed for flow rates from 2 to 5 l/h and pressures from 5 to 6 bar according
to the model.
M a i n f e a t u r e s
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Device manufactured according to
standards
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Chassis made of: Polypropylene
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Designed for fitting level probe
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Standard electric power supply (fluctuations of a maximum ±10% are allowed): 230 V a.c. 50/60 Hz single phase.
Fig. 1 – Views and dimensions – peristaltic version
Fig. 2 – Views and dimensions – electromagnetic version
