17
6.4 Installing in observation wells beginning at 2" diameter
without a top cap
For this installation case, an individual solution to fasten the OTT Orpheus Mini
must be found depending on the measurement station. Example: fix a suspension
bracket with an M6 Allen bolt/nut laterally at the upper end of the observation well.
Required accessories: suspension bracket, for example: M6 Allen bolt, washer
and M6 hex nut (all in stainless steel).
Install the OTT Orpheus Mini as follows (example)
Preliminary work: If not already done, install batteries
(see Chapter 5).
Make a hole (Ø 6.5 mm) laterally at the upper end of the observation well.
Attach the suspension bracket to the observation well with an M6 Allen bolt,
washer and M6 hex nut (see Fig. 11).
Pass the pressure probe through the holes in the suspension bracket.
Slowly
and
carefully
lower the pressure probe into the observation well
with the pressure probe cable.
Pass the communication unit through the holes in the suspension bracket until
the O-ring sits on the suspension bracket (see Fig. 10).
Determine the current depth with a contact gauge and make a note of it.
Set operating parameters (see Chapter 7).
Fig. 11: Example installation of an
OTT Orpheus Mini in an observation
well beginning at 2" diameter.
Proceed similarly for other local conditions!
Suspension
bracket
Hex nut
W
asher
Allen bolt
Observation
well
Summary of Contents for Orpheus Mini
Page 1: ...Operating instructions Groundwater Datalogger OTT Orpheus Mini English...
Page 40: ...40 Appendix A Declaration of conformity OTT Orpheus Mini...
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