The liquid filled measuring system changes its volume as a function of temperature changes. A changeover contact therefore is actuated by mechanical transmission.
In case that the setpoint is overflow the controller switches off. After the temperature drops below the setpoint the temperature controller can be reset manually.
When the system leaks the temperature controller remains in the off-position. When the sensor temperature drops below the minimum the circuit opens but closes again when the temperature rises. Zones 1 & 2, 21 & 22
Explosion protection |
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Gas explosion protection |
II 2 G EEx ed IIC T6 or T5 |
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Dust explosion protection |
II 2 D IP66 T80 °C, T95 °C |
Certificates |
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Gas explosion protection |
PTB 01 ATEX 1024 |
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Dust explosion protection |
LCIE 02 ATEX 6241 |
Material |
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Enclosure |
glass fibre reinforced polyester resin |
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Gaskets |
Polyurethane, foamed |
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Sensor |
VA 1.4571 |
Degree of protection |
IP 65 |
Capillar tube |
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Length |
1 m |
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Diameter |
1.5 mm |
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Min. bending radius |
5 mm |
Cable entry |
2 x cable gland M 20 x 1,5 (bottom) |
Dimension drawings (all dimensions in mm) - subject to alterations |
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Two Channel Temperature Controller Series 8146/5041 |
Temperature Controller and Limiter Series 8146/5241 |