JUMO 605041 Explosion-protected surface-mounting thermostat, ATH-EX Operating Manual - Manual (Page 8)

3 Mounting
8
3.2 Opening the surface-mounting thermostat
✱ Unscrew the 4 cover screws (2)
✱ Remove cover (3) with seal (not visible)
3.3 Securing the surface-mounting thermostat
Mounting
position to DIN 16257, NL 0 — NL 90 (other NL on request)
✱ Drill fixing holes according to the drilling diagram.
✱ Use the 4 screws to secure the housing bottom.
3.4 Capillary / temperature probe / pocket
3.4.1 General
Make sure that the seal is seated correctly when reassembling!
Cutting through or kinking the capillary of the surface-mounting thermostats
will result in permanent failure of the instrument!
Minimum permissible bending radius of the capillary is 5 mm.
The temperature probe must be installed in a JUMO pocket, otherwise the
approval of the thermostat becomes invalid.
The temperature probe must completely immersed in the medium to be mea-
sured.
To ensure their overall accuracy of response, the thermostats must only be
used together with the pockets supplied by the factory (diameter D=8, 10 or
15 mm).
Pockets with diameter D=10 mm may only be fitted with probes with diameter
d=8 mm.
Only 2 or 3 probes may be fitted into a common pocket (probe mounting “10”,
diameter d=6 mm), and only pockets 15 x 0.75 mm may be used. When fitting
2 probes into a common pocket, the factory-supplied spring clip must be fit-
ted in the pocket.
For operation in air, probe mounting “10” (without pocket) must be chosen.