Capillary, Temperature Probe And Thermowell; General Information - JUMO EM Series Operating Manual

EM-4, EM-5, EM-40, EM-50 with central mounting
Extra code 710
(1) Panel
(2) Fixing nut M10 × 1 (13 a/f)
(3) Acorn nut M10 × 1 (10 a/f)
(4) Restart knob
4.3

Capillary, temperature probe and thermowell

4.3.1

General information

CAUTION!
Failure of the device
Cutting or kinking the capillary of the device leads to permanent failure of the functions!
The minimum permissible bending radius of the capillary is 5 mm.
The temperature probe must be mounted in a JUMO thermowell, otherwise the approval of the device
becomes invalid.
NOTE!
The temperature probe must be completely immersed in the medium to be measured. The temperature
probe or protection tube must not come into contact with the walls of the container or pipe.
To ensure their overall accuracy, the thermostats must only be used together with the pockets supplied
by the factory (diameter D = 8 or 10 mm).
Thermowells with diameter D = 10 mm may only be fitted with probes with diameter d = 8 mm.
Fitting several probes into a common thermowell is permissible with 2 or 3 cylindrical probes with diam-
eter D = 6 mm and thermowells 15 × 0.75 mm. When fitting 2 probes in a common thermowell, the de-
fault-supplied pressure spring must be fitted in the thermowell.
For operation in air, process connection 10 (without thermowell) must be chosen.
In the case of thermowells 22, 41, 42, and 45, in materials St.35.8 I, the permissible operating life at op-
erating temperatures above 420 °C is limited to 200,000 hours. The requirements of TRD 508 must be
observed for operation in this range.
4 Mounting
(1)
(2)
EM-4, EM-5
EM-40, EM-50
(3)
(4)
Dim. (mm)
X Y
16 6
16 11
17