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Ensure appropriate mechanical stability and sealing of the probe mounting taking into account specific
influences at the site, such as vibrations, shocks or temperature changes.
The probe and the cabling shall be handled and installed to avoid electrostatic charges. (e.g. metal
hose)
Filter caps
The following filter caps offer good protection against electrostatic discharge for explosion group IIB, but
are not permitted for use in EPL Ga IIC or Class I, Division 1, Group A, B:
• Membrane filter (order code F2)
• PTFE filter(order code F5)
• Membrane on stainless steel body (order code F10)
• PTFE on stainless steel body (order code F11)
• H
O
filter (order code F12)
2
2
The following filter caps are permitted for use in EPL Ga IIC or Class I, Division 1, Group A, B:
• Stainless steel sintered (order code F4)
• Stainless steel grid (order code F9)
• Oil (order code F13)
Filter caps F2, F5, F10, F11 and F12 not allowed for EX6 (TIIS)
3.5.1 Probe Feedthrough with Cut-in Fitting
The feedthrough with cut-in fitting (ordering code PA20, PA21, PA22) can be used as Zone or Division
bushing. For this, the tightness of its mounting into the Zone separation wall must correspond to IP67.
Once mounted, the cut-in fitting creates a permanent clamping-ring onto the probe.
Safety instructions for pressure-tight feedthrough:
• Do not assemble the probe and tighten the feedthrough if the plant is under pressure.
• The plant must not be vented by releasing the nut (A).
• Use appropriate seal on conical probe threads.
• Never rotate the screw connection body (B) but hold the screw connection body (B) securely and turn
the nut (A).
• Avoid unnecessary disassembly of pipe screw connections.
• Position the cut in fitting >75 mm (2.95") from the end of the filter cap to the end of the fitting!
For a probe length of 65 mm a cut in fitting is not possible.
>75 mm (2.95")
Installation instructions:
• Tighten the nut (A) finger-tight.
• Mark the nut (A) at 6 o' clock position.
• Hold the screw connection body (B) tight and tighten the nut (A) with
1 ¼ turns till 9 ‚o clock position.
Assembly with high pressure applications and applications with a
high security factor:
• Tighten the nut (A) until the probe (C) can no longer be turned by
hand and moved axially in the feedthrough.
• Mark the nut (A) at 6 o' clock position.
• Hold the screw connection body (B) tight and tighten the nut (A) with
1 ¼ turns to 9‚ o clock position.
User Manual EE300Ex Humidity / Temperature Sensor
A
B
B
A
B
A
C
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