7
4 Installation
4
Installation
If the pair of temperature probes is connected to a computer unit, make sure that the probe's nominal
value matches that of the processing computer unit.
Furthermore, make sure that the installation location is deep enough to prevent damage to the tip of the
probe or immersion sleeve when screwing in.
The temperature probe must be installed in the pipe so that a sufficient immersion depth is guaranteed
which is greater than the minimum immersion depth in all cases.
During installation, the connecting cable must not be shortened or extended as this would impair com-
pliance with the tolerance (for two-wire technology).
Extending the connecting cable is admissible only using an extension socket for temperature probe pairs
according to the mounting specifications 90244299A47Z001K000.
To prevent an inductive effect, the connecting cable must not be wound.
The connecting cable must not be laid alongside or wrapped around hot pipes because the line resis-
tance and its temperature dependence are considered in the measurement result for temperature probes
using two-wire technology.
Following successful mounting, the temperature probes must be secured against manipulation with a
seal. The sealing hole in the fastening screw or nameplate is intended for this purpose. The sealing set
is available as part no. 00650727.
NOTE!
The following specifications apply for Germany according to the technical directives TR-K8 and TR-K9:
For heat/cold meters with nominal flow rates less than or equal to qp 6 m
3
/h, the temperature probe must
only be installed with direct immersion when newly installing the section of the pipe in the measuring
point area with nominal pressures less than or equal to 16 bar. Tolerances apply for existing immersion
sleeves.
