Certificates And Approvals; Hygiene Standard; Storage And Transport; Mounting - Endress+Hauser OTR31 Operating Instructions Manual

Temperature switch OTR31, OTR35
3.5

Certificates and approvals

3.5.1 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.
3.6

Hygiene standard

• EHEDG certification, TYPE EL CLASS I. Permitted process connections in accordance with
EHEDG, see ' P rocess connections' section →  37
• 3-A Authorization No. 1144. 3-A Sanitary Standard. Permitted process connections in
accordance with 3-A, see also "Process connections" section→  37
• FDA-compliant
3.7

Storage and transport

Pack the device so that it is reliably protected against impact when it is stored (and
transported). The original packaging offers the best protection.
Storage temperature
4

Mounting

4.1

Mounting requirements

Do not turn the device into the process connection thread at the housing. Always install
the device at the hexagonal screw of the sensor module (→  2,  10, item 1). using a
suitable open-ended wrench (see table →  38).
Self-draining in the process must be guaranteed. If there is an opening to detect leaks at
the process connection, this opening must be at the lowest possible point.
–40 to +85 °C (–40 to +185 °F)
Mounting
9