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The RT-BCQ is the Quick Connect hygienic temperature sensor for clamp connections – protection head, interchangeable measuring insert and clamp thermowell in one unit.
The RT-BCQ connects to the process with a clamp, and the thermowell it sits in is part of the sensor. Head, insert and thermowell are supplied as one unit, so the measuring point is complete once the clamp is closed.
The measuring insert, type RT-BCQ-IN, is released by hand through the bayonet coupling while the clamp connection stays in place, so the measuring point can be serviced without opening the line. The same insert also fits RT-BCQ-D, the version with a display in the head.
The RT-BCQ shares the bayonet coupling and standardised insert lengths with the other sensors and thermowells in the Quick Connect program, so one spare insert type can serve several measuring points.
| Sensor element | Pt100 or Pt1000, single or dual element (IEC 60751) |
|---|---|
| Tolerance class | Class A (IEC 60751), or 1/3, 1/6 or 1/10 DIN |
| Conductors | 2-, 3- or 4-wire (2-wire recommended only for Pt1000) |
| Media temperature | Maximum +180 or +250 °C |
| Measuring insert | Interchangeable, type RT-BCQ-IN, replaced or calibrated without opening the process |
| Process connection | Clamp: 3/4″ APC, 1½” DN38 ISO 2852, or 2″ DN51 ISO 2852; special on request |
| Surface finish | Wetted parts: mechanically polished to Ra < 0.8 µm, or electropolished to Ra < 0.5 µm |
| Protective sheath | Stainless steel EN 1.4404 (AISI 316L) |
| Sheath diameter | Ø5 or Ø8 mm; other on request |
| Immersion length L1 | 20, 35 or 50 mm; other on request |
| Extension length L2 | 30 or 50 mm; other on request |
| Protection head | Sanitary stainless steel head with screw cap as standard; other on request |
| Electrical connection | M12 or Harting plug pre-mounted in the head, or pre-mounted cable in SS, SBS or TBT |
| Cable gland | Pre-mounted PG9 gland in plastic, nickel-plated brass or stainless steel, or none (PG9 thread) |
| Signal processing | Selected when ordering: ceramic terminal block in the head, prepared for your own transmitter with long leads, or a programmable head-mounted transmitter |
| Transmitter output | With a head-mounted transmitter: 2-wire 4–20 mA, HART 5 & 7 for diagnostics and configuration over the same loop, or Profibus. ATEX-approved transmitters available. See temperature transmitters |
| Standards | Mechanical and thermal stress in accordance with DIN 43772 |