Float switches with ATEX approval are suitable for the use in explosive media and atmospheres according to Directive 2014/34/EU.
Float switches are passive devices. They do not require a power supply. All standard ATEX devices are offered for a temperature range of -20°C to +105°C in the medium, or -20°C to 70°C above process connection. Our high temperature devices are suitable for an operating temperature of -40°C to +180°C. UniEx.SS float switches are manufactured according to customer requirements and can therefore be individually configured and used for a wide range of applications.
Simply configure and request UniEx.SS now without obligation or arrange a consultation appointment!
Float switch in combination with temperature switch/sensor
Optionally, the UniEx.SS series devices can be equipped with temperature switches or sensors. Both temperature switches, which open or close at a desired temperature, and temperature sensors, such as PT100/PT1000, can be combined with the float switch.
| Temperature range from -20°C to 105°C | Temperature range from -40°C to 180°C | |
|---|---|---|
| ATEX certification |
BVS 21 ATEX ZQS/E377 Production Quality Assurance Notification |
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| Applied standards | EN IEC 60079-0:2018 General requirements EN 60079-11:2012 Intrinsic Safety “i” EN 60079-26:2015 Equipment protection level (EPL) Ga |
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ATEX marking |
CE 0158 |
|
| Electrical connection |
e. g. aluminium housing, stainless steel housing, plug-type connector, sheathed cable for details please see data sheet UniEx.SS 105° |
aluminium housing For details please see data sheet UniEx.SS 180° |
| Process connection |
e. g. thread, flange for details please see data sheet UniEx.SS 105° |
|
| Tube | ø 12 mm, material stainless steel 1.4571 further materials on demand |
|
| Tube length |
according to specification, max. 3000mm | max. 3000 mm |
|
| Float | ø 45 x 52 mm cylinder, stainless steel 1.4571 ø 52 mm bullet, stainless steel 1.4571 |
|
| Reed contacts | max. 6x n.o. contact / n.c. contact or change-over contact |
|
| Switching capacity |
30V / 100 mA – Ex barrier mandatory! |
|
| Pressure | max. 40 bar |
|
| Protection rating |
IP 65 |
IP 66 |
| Operating temperature |
-20°C to 105°C in medium |
-40°C to 180°C |
II 1/2G Ex ia IIC T3...T6 Ga/Gb
Optional: temperature switch / temperature sensor
| Temperature switch | Bi-Metal |
| Switching function |
normally closed / normally open contact |
| Accuracy |
± 5°C, smaller tolerances on demand | reset-temperature = Temp.-switching point - 30°C ± 15°C |
| Number of contacts |
max. 2 temperature switches |
| Switching capacity |
30V / 100 mA – Ex barrier mandatory! |
|
|
|
| Temperature sensor | platinum resistor PT100 / PT1000 according DIN EN 60751, class B |
| Nominal resistance |
PT100: 100 Ohm | PT1000: 1000 Ohm |
| Temperature coefficient: |
0,00385 |
| Tolerance class | DIN EN 60751, class B |
| Self-heating | PT100: 0,4 K/mW | PT1000: 0,2 K/mW |
| Long-term stability after 1000h at 150°C: |
R0 Drift < 0,06 % |
For further technical features and details as well as the ordering code, please see data sheet UniEx.SS 105° or data sheet UniEx.SS 180°.
- Level measurement in many liquid media, e. g. water, oil, fuel
- Large field of application due to the proven functional principle:
Monitoring of processes, predetermined levels as well as pumps and level controls - Chemical industry, petrochemical industry, mechanical engineering, shipbuilding industry, offshore facilities, energy plants and others
- areas of application are, for example, barrier pressure vessels, agitators or printing machines
- Temperature range from -40°C-180°C
- High reliability an long life span
- The float switch may only be operated with certified intrinsically safe circuits with the permissible maximum values.
- The device must be included in the periodic pressure/safety test of the container
- The float switch must be electrically connected to the equipotential bonding system of the plant.
