Certificates And Approvals - Endress+Hauser OTR31 Operating Instructions Manual

Temperature switch
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Technical data
Item no.
Process connection versions, hygiene version
PH
DIN 11851, DN40, PN40 (including coupling nut)
PL
DIN 11851, DN50, PN40 (including coupling nut)
1)
Varivent® process connections are suitable for installation in VARINLINE® housing connection flanges.
The VARINLINE® housing connection flange is suitable for welding into the conical or
torispherical head in tanks or vessels with a small diameter (≤ 1.6 m (5.25 ft)) and up to
a wall thickness of 8 mm (0.31 in). The Varivent type F cannot be used for installations
in pipes in combination with the VARINLINE housing connection flange.
11.7.4
Weight
approx. 300 g (10.58 oz), depends on process connection and sensor length
11.7.5
Materials
• Process connection AISI 316L
Surfaces in contact with the process in hygienic version with surface quality Ra ≤
0.76 µm (30 µin)
• Coupling nut AISI 304
• AISI 316L housing, with surface quality R
O-ring between housing and sensor module: EPDM
• Electrical connection
• M12 connector, exterior AISI 316L, interior polyamide (PA)
• Valve connector, polyamide (PA)
• M12 connector, exterior 316L
• Cable sheath polyurethane (PUR)
• O-ring between electrical connection and housing: FKM
• Display, polycarbonate PC-FR (Lexan®)
Seal between display and housing: SEBS THERMOPLAST K®
Keys, polycarbonate PC-FR (Lexan®)
11.8

Certificates and approvals

11.8.1
CE mark
The product meets the requirements of the harmonized European standards. As such, it
complies with the legal specifications of the EC directives. The manufacturer confirms
successful testing of the product by affixing to it the CE-mark.
40
Hygiene standard
≤ 0.76 µm (30 µin)
a
Temperature switch OTR31, OTR35

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