JUMO 60.5051 Explosion-protected surface-mounting thermostat, ATH-EXx Operating Manual - Manual (Page 10)

3 Mounting
10
3.2 Opening the surface-mounting thermostat
✱ Unscrew the 4 cover screws (2)
✱ Remove cover (3) with seal (not visible)
3.3 Fixing 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 base.
3.4 Capillary / temperature probe / pocket
3.4.1 General
3.4.2 Approved probes and sheaths
see current data sheet 606710
Make sure that the seal is seated correctly when reassembling!
Cutting through or kinking the capillary of the surface-mounting thermostat will
lead to permanent instrument failure!
Minimum permissible bending radius of the capillary is 5 mm.
The temperature probe must be mounted in a JUMO pocket, otherwise the
approval of the surface-mounting thermostat becomes invalid.
The temperature probe must completely immersed in the medium to be
measured.
To ensure their overall accuracy, the thermostats must only be used together
with the pockets supplied by the factory (diameter D = 8, 10 or 15 mm).
Pockets with a diameter D = 10 mm must only be fitted with probes with
diameter d = 8 mm.
Fitting several probes into a common pocket is only permitted with 2 or 3
probes (mounting type "10", diameter d = 6 mm) and 15 x 0.75 mm pockets.
When fitting 2 probes in a common pocket, the factory-supplied spring clip
must be fitted in the pocket.
For operation in air, probe mounting type "10" (without pocket) must be cho-
sen.