Technical explanations to Watertechnics
Function

| The high level controller starts the pump … |
… which regulates the level … |
… to a predetermined low level. |
The low level controller stops the pump. |
Through inflow, the level rises again … |
... until the determined high level is reached … |
… and the pump process begins anew. |
Installation
interference from the shaft walls, pipes, fittings etc. and that they are not exposed directly to currents.
For simple mounting we can supply cable support brackets. The stainless steel support bracket is mounted on the wall. With the included M16 cable glands, one or two level controllers can be suspended freely at exactly the required height.

Electrical Connection
The level controllers are usually connected to a low voltage control circuit through a control panel. They may not operate directly on an electrical supply line, e.g. not directly on a pump motor – except Type KR1 und N1.
| Connection of level controllers | Wire | |||
|---|---|---|---|---|
| grey | black | brown | ||
| For emptying a tank |
insulate | insulate | X | X |
| For filling a tank |
X | X | X | X |
| Alarm high level |
insulate | insulate | X | X |
| Alarm low level |
X | X | X | X |

Maintenance
If correctly installed and mounted, the level controllers function is practically maintenance-free.
Depending on the medium's pollution level, the installation must be checked from time to time for dirt deposits and cleaned if necessary.
Resistance list
The level controllers are resistant to the following liquids.
Level controller MS1 / MS1 electronic EX / M 2 / KR1 / KR1 electronic EX
faecal water
liquid manure
domestic sewage
sewage of washing machines,
bathes and showers
suds
emulsion with parts
of diesel oils / fets / oil / acids etc.
rain water
ground water
sea water / river water
mineral water
chlorine water
saltwater
brine
vegetable oils
fruit acids
alcohol
max. working temperature 80 °C (176 ° F)
Meets the requirements in 90% of all applications.
Level controller MS1 ACS
potable water / food applications
max. working temperature 70 °C (158 °F)
For extreme applications MS1C / MS1 electronic EX with teflon cable
fuel
bore oils
ATE - brake fluid
diesel oils
transfomer oil
petroleum
fatty acid
non-freeze liquid
gear oils
fuel oils
hydraulic fluid
turbine oil
degreaser
base
solvent - containing fluids
lactic acid, watery
mineral oils
engine oils
petrol
lube oils
sulphuric acid - containing fluids
hydrochloric acid - containing fluids
ethyl alcohol
galvanic bath
max. working temperature 100 °C (212 °F)
These lists were compiled to the best of one’s knowledge and information from our material suppliers. As there is no plastic, which is resistant against all media and temperatures, mix ratio, surface tension, pressure ratio etc. are also important; in critical applications practical tests should be done before usage.